mariadb

Commit Graph

Author	SHA1	Message	Date
Michael Widenius	bdba1d11c4	Change some my_bool in C++ classes and a few functions to bool to detect wrong usage of bool/my_bool. Fix some bugs where we stored values other than 0 or 1 in my_bool Fixed some compiler warnings client/mysql.cc: Changed interrupted_query from my_bool to int, as we stored 2 in it. client/mysqladmin.cc: Changed return variable type to same type as function value type client/mysqltest.cc: Changed 'found' to int as we store other values than 0 or 1 into it Changed type for parameter of set_reconnect() to match usage. extra/libevent/evbuffer.c: Added __attribute__((unused)) extra/libevent/event.c: Added __attribute__((unused)) extra/libevent/signal.c: Added __attribute__((unused)) sql/event_data_objects.h: my_bool -> bool sql/event_db_repository.cc: my_bool -> bool sql/event_db_repository.h: my_bool -> bool sql/event_parse_data.h: my_bool -> bool sql/events.cc: my_bool -> bool sql/events.h: my_bool -> bool sql/field.cc: my_bool -> bool sql/field.h: my_bool -> bool sql/hash_filo.h: my_bool -> bool sql/item.cc: my_bool -> bool sql/item.h: my_bool -> bool sql/item_cmpfunc.h: my_bool -> bool Changed result_for_null_param from my_bool to int as we stored -1 in it. sql/item_func.cc: my_bool -> bool Modified udf wrapper functions so that the UDF functions would continue to use my_bool. (To keep compatibility with UDF:s) sql/item_func.h: my_bool -> bool sql/item_subselect.h: my_bool -> bool sql/item_sum.cc: Modified udf wrapper functions so that the UDF functions would continue to use my_bool. (To keep compatibility with UDF:s) sql/parse_file.h: my_bool -> bool sql/rpl_mi.h: my_bool -> bool sql/sp_rcontext.h: my_bool -> bool sql/sql_analyse.h: my_bool -> bool sql/sql_base.cc: Change some assignments so that we don't initialize bool variables with int's. sql/sql_bitmap.h: my_bool -> bool sql/sql_cache.cc: my_bool -> bool sql/sql_cache.h: my_bool -> bool sql/sql_class.h: my_bool -> bool sql/sql_insert.cc: Change some assignments so that we don't initialize bool variables with int's. sql/sql_prepare.cc: my_bool -> bool sql/table.h: my_bool -> bool storage/maria/ma_check.c: Removed duplicate assignment strings/decimal.c: Fixed wrong variable usage. Don't do complex arithmetic on bool when simple works.	15 years ago
Dmitry Shulga	bd41af86eb	Fixed bug #42496 - the server could crash on a debug assert after a failure to write into a closed socket sql/protocol.cc: Protocol::flush modified: set thd->main_da.can_overwrite_status= TRUE before call to net_flush() in order to prevent crash on assert in case of socket write failure, reset it to FALSE when net_flush() returned; Protocol::send_fields modified: return from method with error if call to my_net_write(), proto.write() or write_eof_packet() failed. sql/sql_cache.cc: Query_cache::send_result_to_client modified: call to thd->main_da.disable_status() only if write to socket was successful. sql/sql_cursor.cc: Materialized_cursor::fetch modified: leave method if call to result->send_data() failed. sql/sql_prepare.cc: send_prep_stmt() modified: call to thd->main_da.disable_status() only if thd->protocol_text.send_fields() completed successfully.	16 years ago
Michael Widenius	2cc3fc2713	Merged patch from Percona to get proper fix for compilation issue of srv0srv.c on Solaris sql/sql_cache.cc: Fixed wrong comment	16 years ago
Kristofer Pettersson	41085809c3	Bug#39253 Large query cache still freezes server after fix for bug #21074 This patch introduce a limit on the time the query cache can block with a lock on SELECTs. Other operations which causes a change in the table data will still be blocked. sql/sql_cache.cc: * Introduced a timeout value for the qc lock when entering send_result_to_client() and store_query() methods. sql/sql_cache.h: * New signature for Query_cache::try_lock()	16 years ago
Michael Widenius	5bddbc44c6	Fixed compiler warning message - Added checking of return value for system(), freopen(), fgets() and chown() - Ensure that calls that require a format strings gets a format string - Other trivial things Updated test suite results (especially for pbxt and embedded server) Removed warning for "Invalid (old?) table or database name 'mysqld.1'" from pbxt tests Speed up some pbxt tests by inserting begin ; commit; around "while loops with inserts" Added mysqld startup option '--debug-flush' Create maria_recovery.trace in data directory instead of current directory client/mysql.cc: Check return value from system() client/mysql_upgrade.c: Check return value from fgets() client/mysqladmin.cc: Check return value from fgets() client/mysqlslap.c: Check return value from system() (but ignore it, as it's not critical) extra/yassl/src/crypto_wrapper.cpp: Check return value from fgets() (but ignore it, as it's internal file) extra/yassl/taocrypt/src/aes.cpp: Added extra {} to remove compiler warning extra/yassl/taocrypt/src/blowfish.cpp: Added extra {} to remove compiler warning extra/yassl/taocrypt/src/misc.cpp: Ifdef not used code include/mysys_err.h: Added error message for failing chown() mysql-test/mysql-test-run.pl: Don't give warning for skipping ndbcluster (never enabled in MariaDB) mysql-test/suite/funcs_1/r/is_columns_is_embedded.result: Update with new information schema information mysql-test/suite/funcs_1/r/is_tables_is_embedded.result: New test mysql-test/suite/funcs_1/r/is_tables_myisam_embedded.result: Update test results (has not been tested for a long time) mysql-test/suite/funcs_1/r/is_tables_mysql_embedded.result: Update test results (has not been tested for a long time) mysql-test/suite/funcs_1/t/is_tables_is.test: Don't run with embedded server (as results differ) I added a new test for embedded server mysql-test/suite/funcs_1/t/is_tables_is_embedded.test: New test mysql-test/suite/pbxt/my.cnf: Allow one to run pbxt tests without having to specify --mysqld=--default-storage-engine=pbxt mysql-test/suite/pbxt/t/count_distinct3.test: Speed up test by inserting begin; ... commit; mysql-test/suite/pbxt/t/subselect.test: Speed up test by inserting begin; ... commit; mysys/errors.c: Added error message for failing chown() mysys/my_copy.c: Added error message for failing chown() mysys/my_redel.c: Added error message for failing chown() mysys/safemalloc.c: Added cast to get rid of compiler warning sql/ha_partition.cc: Fixed wrong argument to sql_print_error() (it requires a format string) sql/log.cc: Test return value of freopen() sql/mysqld.cc: Test return value of freopen() Added startup option '--debug-flush' to be used when one gets a core dump (easy to explain to people on IRC) sql/rpl_rli.cc: Fixed wrong argument to sql_print_error() (it requires a format string) sql/set_var.cc: Added {} to get rid of compiler warnings sql/slave.cc: Fixed wrong argument to mi->report() and sql_print...() (they require a format string) sql/sql_cache.cc: Fixed wrong argument to sql_printinformation() (it requires a format string) sql/sql_parse.cc: Test return value of fgets() sql/sql_plugin.cc: Fixed wrong argument to sql_print_error() (it requires a format string) sql/sql_select.cc: Use unique table name for internal temp tables instead of full path (Simple speed & space optimization) sql/udf_example.c: Removed compiler warning about not used variable storage/maria/ha_maria.cc: Fixed wrong argument to sql_print_error() and ma_check_print_error() (they require a format string) storage/maria/ma_recovery.c: Create maria_recovery.trace in data directory instead of current directory storage/maria/unittest/ma_test_loghandler-t.c: Fixed wrong argument to ok(); Requires a format string storage/pbxt/src/strutil_xt.cc: Detect temporary tables by checking if that path for the table is in the mysql data directory. The database for temporary tables is after this patch, from PBXT point of view, "" This is needed to stop PBXT from calling filename_to_tablename() with the base directory as an argument, which caused ERROR: Invalid (old?) table or database name 'mysqld.1'" in the log when running the test suite. tests/mysql_client_test.c: Fixed compiler warnings unittest/mysys/base64-t.c: Fixed wrong argument to diag() (it requires a format string) Added a comment that the current 'print' of differing buffers doesn't print the right thing, but didn't fix this as it's not important (unless we find a bug in the real code)	16 years ago
Georgi Kodinov	7b4ef910f7	Bug #40877 : multi statement execution fails in 5.1.30 Implemented the server infrastructure for the fix: 1. Added a function LEX_STRING thd_query_string(THD) to return a LEX_STRING structure instead of char . This is the function that must be called in innodb instead of thd_query() 2. Did some encapsulation in THD : aggregated thd_query and thd_query_length into a LEX_STRING and made accessor and mutator methods for easy code updating. 3. Updated the server code to use the new methods where applicable.	16 years ago
Staale Smedseng	6a89842e36	Bug #43414 Parenthesis (and other) warnings compiling MySQL with gcc 4.3.2 Cleaning up warnings not present in 5.0.	16 years ago
Michael Widenius	cd3047fc89	Updated documentation files to reflect MariaDB and not the Maria storage engine or MySQL Added (rewritten) patch from Percona to get extended statistics in slow.log: - Added handling of 'set' variables to set_var.cc. Changed sql_mode to use this - Added extra logging to slow log of 'Thread_id, Schema, Query Cache hit, Rows sent and Rows examined' - Added optional logging to slow log, through log_slow_verbosity, of query plan statistics - Added new user variables log_slow_rate_limit, log_slow_verbosity, log_slow_filter - Added log-slow-file as synonym for 'slow-log-file', as most slow-log variables starts with 'log-slow' - Added log-slow-time as synonym for long-query-time Some trivial MyISAM optimizations: - In prepare for drop, flush key blocks - Don't call mi_lock_database if my_disable_locking is used KNOWN_BUGS.txt: Updated file to reflect MariaDB and not the Maria storage engine README: Updated file to reflect MariaDB mysql-test/r/log_slow.result: Test new options for slow query log mysql-test/r/variables.result: Updated result (old version cut of things at 79 characters) mysql-test/t/log_slow.test: Test new options for slow query log sql/Makefile.am: Added log_slow.h sql/event_data_objects.cc: Removed not needed test for enable_slow_log (is done when the flag is tested elsewhere) sql/events.cc: Use the general make_set() function instead of 'symbolic_mode_representation' sql/filesort.cc: Added status for used query plans sql/log.cc: Reset counters if no query_length (from Percona's patch; Not sure if needed, but can do no harm) Added extra logging to slow log of 'Thread_id, Schema, Query Cache hit, Rows sent and Rows examined' Added optional logging to slow log, through log_slow_verbosity, of query plan statistics Fixed wrong test of error condition sql/log_slow.h: Defines and variables for log_slow_verbosity and log_slow_filter sql/mysql_priv.h: Include log_slow.h sql/mysqld.cc: Added new user variables log_slow_rate_limit, log_slow_verbosity, log_slow_filter Added log-slow-file as synonym for 'slow-log-file', as most slow-log variables starts with 'log-slow' Added log-slow-time as synonym for long-query-time Added note that one should use log-slow-filter instead of log-slow-admin-statements Updated comment from 'slow_query_log_file' sql/set_var.cc: Added long_slow_time as synonym for long_query_time Added new user variables log_slow_rate_limit, log_slow_verbosity, log_slow_filter dded handling of 'set' variables to set_var.cc. Changed sql_mode to use this sql/set_var.h: - Added handling of 'set' variables. Changed sql_mode to use this sql/slave.cc: Use global filter also for slaves sql/sp_head.cc: Simplify saving of general_slow_log state Use the general make_set() function instead of 'symbolic_mode_representation' sql/sql_cache.cc: Added status for used query plans sql/sql_class.cc: Remember/restore query_plan_flags over complex statements sql/sql_class.h: Added variables to handle extended slow log statistics sql/sql_parse.cc: Added status for used query plans Added test for filtering slow_query_log sql/sql_select.cc: Added status for used query plans sql/sql_show.cc: Use the general make_set() function instead of 'symbolic_mode_representation' sql/strfunc.cc: Report first error (not last) if something is wrong in a set Removed compiler warning storage/myisam/mi_extra.c: In prepare for drop, flush key blocks (speed optimization) storage/myisam/mi_locking.c: Don't call mi_lock_database if my_disable_locking is used (speed optimization)	17 years ago
Kristofer Pettersson	02e5ad9881	Bug#43758 Query cache can lock up threads in 'freeing items' state Early patch submitted for discussion. It is possible for more than one thread to enter the condition in query_cache_insert(), but the condition predicate is to signal one thread each time the cache status changes between the following states: {NO_FLUSH_IN_PROGRESS,FLUSH_IN_PROGRESS, TABLE_FLUSH_IN_PROGRESS} Consider three threads THD1, THD2, THD3 THD2: select ... => Got a writer in ::store_query THD3: select ... => Got a writer in ::store_query THD1: flush tables => qc status= FLUSH_IN_PROGRESS; new writers are blocked. THD2: select ... => Still got a writer and enters cond in query_cache_insert THD3: select ... => Still got a writer and enters cond in query_cache_insert THD1: flush tables => finished and signal status change. THD2: select ... => Wakes up and completes the insert. THD3: select ... => Happily waiting for better times. Why hurry? This patch is a refactoring of this lock system. It introduces four new methods: Query_cache::try_lock() Query_cache::lock() Query_cache::lock_and_suspend() Query_cache::unlock() This change also deprecates wait_while_table_flush_is_in_progress(). All threads are queued and put on a conditional wait. On each unlock the queue is signalled. This resolve the issues with left over threads. To assure that no threads are spending unnecessary time waiting a signal broadcast is issued every time a lock is taken before a full cache flush. mysql-test/r/query_cache_debug.result: * Added test case for bug43758 mysql-test/t/query_cache_debug.test: * Added test case for bug43758 sql/sql_cache.cc: * Replaced calls to wait_while_table_flush_is_in_progress() with calls to try_lock(), lock_and_suspend() and unlock(). * Renamed enumeration Cache_status to Cache_lock_status. * Renamed enumeration items to UNLOCKED, LOCKED_NO_WAIT and LOCKED. If the LOCKED_NO_WAIT lock type is used to lock the query cache, other threads using try_lock() will fail to acquire the lock. This is useful if the query cache is temporary disabled due to a full table flush. sql/sql_cache.h: * Replaced calls to wait_while_table_flush_is_in_progress() with calls to try_lock(), lock_and_suspend() and unlock(). * Renamed enumeration Cache_status to Cache_lock_status. * Renamed enumeration items to UNLOCKED, LOCKED_NO_WAIT and LOCKED. If the LOCKED_NO_WAIT lock type is used to lock the query cache, other threads using try_lock() will fail to acquire the lock. This is useful if the query cache is temporary disabled due to a full table flush.	17 years ago
Georgi Kodinov	e8cc09dc8d	fixed compilation warnings. addendum to the fix for bug 29125	17 years ago
Kristofer Pettersson	5c42a6cf54	Bug#37416 When SQL_NO_CACHE is used, MySQL still lookup into the query cache The query cache module did not check for the SQL_NO_CACHE keyword before attempting to query the hash lookup table. This had a small performance impact. By introducing a check on the query string before obtaining the hash mutex we can gain some performance if the SQL_NO_CACHE directive is used often. sql/sql_cache.cc: * Introduced new helper function, has_no_cache_directive, for checking the existance of a SQL_NO_CACHE directive before actual parsing of the query.	17 years ago
Davi Arnaut	664bb23a30	Bug#41098: Query Cache returns wrong result with concurrent insert The problem is that select queries executed concurrently with a concurrent insert on a MyISAM table could be cached if the select started after the query cache invalidation but before the unlock of tables performed by the concurrent insert. This race could happen because the concurrent insert was failing to prevent cache of select queries happening at the same time. The solution is to add a 'uncacheable' status flag to signal that a concurrent insert is being performed on the table and that queries executing at the same time shouldn't cache the results. mysql-test/r/query_cache_debug.result: Add test case result for Bug#41098 mysql-test/t/disabled.def: Re-enable test case. mysql-test/t/query_cache_debug.test: Add test case for Bug#41098 sql/sql_cache.cc: Debug sync point for regression testing purposes. sql/sql_insert.cc: Remove meaningless query cache invalidate. There is already a preceding invalidate for queries that started before the concurrent insert. storage/myisam/ha_myisam.cc: Check for a active concurrent insert. storage/myisam/mi_locking.c: Signal the start of a concurrent insert. Flag is zeroed once the state is updated back. storage/myisam/myisamdef.h: Add flag to signal a active concurrent insert.	17 years ago
Ignacio Galarza	54fbbf9591	Bug#29125 Windows Server X64: so many compiler warnings - Remove bothersome warning messages. This change focuses on the warnings that are covered by the ignore file: support-files/compiler_warnings.supp. - Strings are guaranteed to be max uint in length	17 years ago
Davi Arnaut	ecfdc3560c	Bug#40264: Aborted cached query causes query to hang indefinitely on next cache hit The problem is that the query cache was storing partial results if the statement failed when sending the results to the client. This could cause clients to hang when trying to read the results from the cache as they would, for example, wait indefinitely for a eof packet that wasn't saved. The solution is to always discard the caching of a query that failed to send its results to the associated client. mysql-test/r/query_cache_notembedded.result: Add test case result for Bug#40264 mysql-test/t/query_cache_notembedded.test: Add test case for Bug#40264 sql/sql_cache.cc: Abort if a unreported error was raised.	17 years ago
Davi Arnaut	3d6cea324a	Bug#36326: nested transaction and select The problem is that the query cache stores packets containing the server status of the time when the cached statement was run. This might lead to a wrong transaction status in the client side if a statement is cached during a transaction and is later served outside a transaction context (and vice-versa). The solution is to take into account the transaction status when storing in and serving from the query cache. mysql-test/r/innodb_cache.result: Update test case result. mysql-test/r/query_cache.result: Add test case result for Bug#36326 mysql-test/t/query_cache.test: Add test case for Bug#36326 sql/mysql_priv.h: Add new flags. sql/sql_cache.cc: Remember the transaction and autocommit status stored in the packet. tests/mysql_client_test.c: Add test case for Bug#36326	17 years ago
Build Team	e85fe79430	Added "Sun Microsystems, Inc." to copyright headers on files modified since Oct 1st	17 years ago
Kristofer Pettersson	d02b8a3bcc	Bug#37416 When SQL_NO_CACHE is used, MySQL still lookup into the query cache The query cache module did not check for the SQL_NO_CACHE keyword before attempting to query the hash lookup table. This had a small performance impact. By introducing a check on the query string before obtaining the hash mutex we can gain some performance if the SQL_NO_CACHE directive is used often.	17 years ago
Davi Arnaut	6816cf6a65	Bug#34306: Can't make copy of log tables when server binary log is enabled Post-merge bug fix: lock_type is a enumeration type and not a bit mask. sql/sql_cache.cc: Check for lock type explicitly. Also err on the safe side and invalidate the query cache for any write lock.	17 years ago
Martin Hansson	3bad2119f9	Bug#36086: SELECT * from views don't check column grants This patch also fixes bugs 36963 and 35600. - In many places a view was confused with an anonymous derived table, i.e. access checking was skipped. Fixed by introducing a predicate to tell the difference between named and anonymous derived tables. - When inserting fields for "SELECT * ", there was no distinction between base tables and views, where one should be made. View privileges are checked elsewhere. mysql-test/include/grant_cache.inc: Bug#36086: Changed test case. mysql-test/r/grant2.result: Bug#36086: Changed test result. mysql-test/r/grant_cache_no_prot.result: Bug#36086: Changed test result. mysql-test/r/grant_cache_ps_prot.result: Bug#36086: Changed test result. mysql-test/r/view_grant.result: Bug#36086: Test result. mysql-test/t/grant2.test: Bug#36086: Changed test case. mysql-test/t/view_grant.test: Bug#36086: Test case. sql/item.cc: Bug#36086: Replaced conditional with new methods. sql/sql_acl.cc: Bug no 35600: In mysql_table_grant: Replaced conditional with the new accessor method. In check_grant: - Changed the requirement table->derived != null to checking all anonymous derived tables. - Use of the accessor methods for getting object and database names. Bug#36086: In check_grant_all_columns: - Updated comment. This function is now called for views as well. - The error message should not disclose any column names unless the user has privilege to see all column names. - Changed names of Field_iterator_table_ref methods. sql/sql_base.cc: Bug no 36963: In insert_fields() - Commented. - We should call check_grant_all_columns() for views in this case. - Changed names of Field_iterator_table_ref methods. - We should not disclose column names in the error message when the user has no approprate privilege. sql/sql_cache.cc: Bug#36086: Replaced test with new predicate method. sql/sql_derived.cc: Bug#36086: commenting only. Updated and doxygenated comment for mysql_derived_prepare(). sql/sql_parse.cc: Bug no 35600: - In check_single_table_access: Due to the bug, check_grant would raise an error for a SHOW CREATE TABLE command for a TEMPTABLE view. It should in fact not be be invoked in this case. This table privilege is checked already. There is a test case for this in information_schema_db.test. - In check_access: replaced table->derived sql/table.cc: Bug#36086: - In TABLE_LIST::set_underlying_merge(): Commenting only. Doxygenated, corrected spelling, added. - Renamed table_name() and db_name() methods of Field_iterator_table_ref in order to be consistent with new methods in TABLE_LIST. sql/table.h: Bug#36086: - Commented GRANT_INFO. - Added a predicate is_anonymous_derived_table() to TABLE_LIST. - Added get_table_name() and get_db_name() to TABLE_LIST in order to hide the disparate representation of these properties.	18 years ago
Davi Arnaut	14887bb2ab	Cherry-pick Bug#33362 from mysql-5.1	18 years ago
Kristofer Pettersson	451363afda	Reverting patch for bug30087	18 years ago
Marc Alff	95ca2c6d96	Bug#30087 Set query_cache_size, if the value is too small, get a unclear warning Reverting the previous patch	18 years ago
Kristofer Pettersson	681236e100	Bug#30087 Set query_cache_size, if the value is too small, get a unclear warning This bugs clarifies a warning message issued when the query cache data size becomes smaller than the minium allowed size. mysql-test/r/query_cache.result: New warning message when a too small value has been set for query cache size. sql/set_var.cc: To avoid poluting the QC API the warning messages are moved into the QC module. sql/share/errmsg.txt: Changed error message so that minimal cache size always is hinted. sql/sql_cache.cc: Modified the warning message so that the minimal cache size always is hinted. Added interface method Query_cache::get_minimal_size_limit(). sql/sql_cache.h: Modified the warning message so that the minimal cache size always is hinted. Added interface method Query_cache::get_minimal_size_limit().	18 years ago
Davi Arnaut	2100ec9ec9	Bug#33362: Query cache invalidation (truncate) may hang if cached query uses many tables The problem was that query cache would not properly cache queries which used 256 or more tables but yet would leave behind query cache blocks pointing to freed (destroyed) data. Later when invalidating (due to a truncate) query cache would attempt to grab a lock which resided in the freed data, leading to hangs or undefined behavior. This was happening due to a improper return value from the function responsible for registering the tables used in the query (so the cache can be invalidated later if one of the tables is modified). The function expected a return value of type boolean (char, 8 bits) indicating success (1) or failure (0) but the number of tables registered (unsigned int, 32 bits) was being returned instead. This caused the function to return failure for cases where it had actually succeed because when a type (unsigned int) is converted to a narrower type (char), the excess bits on the left are discarded. Thus if the 8 rightmost bits are zero, the return value will be 0 (failure). The solution is to simply return true (1) only if the number of registered table is greater than zero and false (0) otherwise. mysql-test/r/query_cache_merge.result: Add test case result for Bug#33362 mysql-test/t/query_cache_merge.test: Add test case for Bug#33362 sql/sql_cache.cc: Return 1 or 0 depending on the number of registered tables.	18 years ago
unknown	a9089cf460	Bug#26243 mysql command line crash after control-c - Backported the 5.1 DBUG to 5.0. - Avoid memory cleanup race on Windows client for CTRL-C client/mysql.cc: Bug#26243 mysql command line crash after control-c - On Windows, the sigint handler shouldn't call mysql_end because the main thread will do so automatically. - Remove unnecessary signal call from the sigint handler. - Call my_end with proper value. dbug/dbug.c: Bug#26243 mysql command line crash after control-c - Backported the 5.1 DBUG library. The old version uses a non-thread safe global variable 'static struct state stack'. dbug/factorial.c: Bug#26243 mysql command line crash after control-c - Backported the 5.1 DBUG library. The old version uses a non-thread safe global variable 'static struct state stack'. dbug/user.r: Bug#26243 mysql command line crash after control-c - Backported the 5.1 DBUG library. The old version uses a non-thread safe global variable 'static struct state stack'. include/my_dbug.h: Bug#26243 mysql command line crash after control-c - Backported the 5.1 DBUG library. The old version uses a non-thread safe global variable 'static struct state stack'. libmysql/libmysql.c: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. myisam/mi_open.c: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/ha_federated.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/ha_innodb.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/ha_myisammrg.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/item_cmpfunc.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/mysqld.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/net_serv.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/opt_range.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/set_var.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/slave.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/sql_cache.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. sql/sql_select.cc: Bug#26243 mysql command line crash after control-c - Update for new DBUG library. tests/mysql_client_test.c: Bug#26243 mysql command line crash after control-c - Update for new DBUG library.	18 years ago
unknown	c184cd6320	Bug#25132 disabled query cache: Qcache_free_blocks = 1 The initial value of free memory blocks in 0. When the query cache is enabled a new memory block gets allocated and is assigned number 1. The free memory block is later split each time query cache memory is allocated for new blocks. This means that the free memory block counter won't be reduced to zero when the number of allocated blocks are zero, but rather one. To avoid confusion this patch changes this behavior so that the free memory block counter is reset to zero when the query cache is disabled. Note that when the query cache is enabled and resized the free memory block counter was still calculated correctly. mysql-test/r/query_cache.result: test case mysql-test/t/query_cache.test: test case sql/sql_cache.cc: Restore the memory block count to 0 for consistency.	18 years ago
unknown	8170b22b5c	Fixed compiler warnings in a lot of files Added IMPOSSIBLE_RESULT to avoid compiler warnings when using (Item_result) -1 as a dummy value Changed PAGE_SIZE to TEST_PAGE_SIZE to avoid compiler errors on systems where PAGE_SIZE is defined client/get_password.c: Fixed compiler warning cmd-line-utils/readline/bind.c: Fixed compiler warning cmd-line-utils/readline/chardefs.h: Fixed compiler warning by adding marco to be used when largest_char is 255 cmd-line-utils/readline/display.c: Fixed compiler warnings by removing not accessed variables cmd-line-utils/readline/histexpand.c: Fixed compiler warnings by removing not accessed variables cmd-line-utils/readline/history.c: Fixed compiler warnings by adding cast cmd-line-utils/readline/text.c: Fixed compiler warnings by removing not accessed variables and adding casts dbug/dbug.c: Fixed compiler warnings by changing types include/mysql_com.h: Added IMPOSSIBLE_RESULT to avoid compiler warnings when using (Item_result) -1 as a dummy value libmysql/libmysql.c: Fixed compiler warning mysql-test/t/query_cache_debug.test: Mark test as BIG as it uses a lot of memory mysys/mf_iocache2.c: Fixed compiler warnings by adding cast sql/event_data_objects.cc: Fixed compiler warnings by removing not used code sql/events.cc: Fixed compiler warnings by removing not used code sql/field.cc: Fixed compiler warnings by adding cast and removed not accessed variables sql/ha_partition.cc: Fixed compiler warnings by removing not used code sql/item.cc: Fixed compiler warnings by removing not accessed variables Use IMPOSSIBLE_RESULT instead of (Item_result)-1 sql/item_cmpfunc.cc: Fixed compiler warnings by removing not accessed variables sql/item_func.cc: Fixed compiler warnings by removing not used code and not accessed variables Added IMPOSSIBLE_RESULT sql/item_subselect.cc: Fixed compiler warnings by removing not accessed variables sql/item_xmlfunc.cc: Fixed forgotten setting of xpath->error sql/log.cc: Fixed compiler warnings by removing not accessed variables sql/log_event.cc: Added IMPOSSIBLE_RESULT into switch Fixed wrong usage of DBUG_ASSERT(1) Removed always true DBUG_ASSERT() sql/mysqld.cc: Fixed compiler warnings by adding casts for ULONG_MAX sql/opt_sum.cc: Fixed compiler warnings by removing not used code Removed wrong DBUG_ASSERT() sql/partition_info.cc: Fixed compiler warnings by removing not accessed variables sql/rpl_injector.h: Removed always true part from DBUG_ASSERT() to remove compiler warning sql/spatial.cc: Fixed compiler warnings by removing not accessed variables sql/sql_acl.cc: Fixed compiler warnings by removing not accessed variables sql/sql_base.cc: Fixed compiler warnings by removing not accessed variables sql/sql_cache.cc: Fixed compiler warnings by removing not accessed variables sql/sql_class.cc: Fixed compiler warnings by: - Removing always true part from DBUG_ASSERT() - Removing not used code - Added IMPOSSIBLE_RESULT into switch sql/sql_load.cc: Fixed compiler warnings by removing not accessed variables sql/sql_parse.cc: Fixed compiler warnings by: - Removing not accessed variables - Removing always true part from DBUG_ASSERT() - Removing not used code sql/sql_plugin.cc: Added comment sql/sql_prepare.cc: Fixed compiler warnings by removing not accessed variables sql/sql_show.cc: Fixed compiler warnings by using correct cast sql/sql_table.cc: Fixed compiler warnings by removing not used code and removing not accessed variables sql/table.cc: Fixed compiler warnings by removing not accessed variables sql/time.cc: Fixed wrong DBUG_ASSERT(1) storage/maria/unittest/Makefile.am: Changed PAGE_SIZE to TEST_PAGE_SIZE to avoid compiler errors on systems where PAGE_SIZE is defined storage/maria/unittest/ma_pagecache_consist.c: Changed PAGE_SIZE to TEST_PAGE_SIZE to avoid compiler errors on systems where PAGE_SIZE is defined storage/maria/unittest/ma_pagecache_single.c: Changed PAGE_SIZE to TEST_PAGE_SIZE to avoid compiler errors on systems where PAGE_SIZE is defined tests/mysql_client_test.c: Fixed compiler warnings by removing not accessed variables and changing types	18 years ago
unknown	39509d64c3	A fix and a test case for Bug#34166 Server crash in SHOW OPEN TABLES and pre-locking. The crash was caused by an implicit assumption in check_table_access() that table_list parameter is always a part of lex->query_tables. When iterating over the passed list of tables, check_table_access() used to stop only when lex->query_tables_last_not_own was reached. In case of pre-locking, lex->query_tables_last_own is not NULL and points to some element of lex->query_tables. When the parameter of check_table_access() was not part of lex->query_tables, loop invariant could never be violated and a crash would happen when the current table pointer would point beyond the end of the provided list. The fix is to change the signature of check_table_access() to also accept a numeric limit of loop iterations, similarly to check_grant(), and supply this limit in all places when we want to check access of tables that are outside lex->query_tables, or just want to check access to one table. mysql-test/r/information_schema.result: Update test results (Bug#34166). mysql-test/t/information_schema.test: Add a test case for Bug#34166. sql/mysql_priv.h: Change signature of check_table_access() to accept a numeric limit of tables to check. sql/sp_head.cc: Update to the new signature of check_table_access(). sql/sql_acl.cc: Improve code clarity: if there is a numeric limit, we should not need to look at first_not_own_table. sql/sql_base.cc: Update to the new signature of check_table_access(). sql/sql_cache.cc: Update to the new signature of check_table_access(). sql/sql_parse.cc: Update to the new signature of check_table_access(). Change check_table_access() to accept an optional numeric limit of tables to check. A crash would happen when check_table_access() was passed a list of tables that is not part of lex->query_tables and lex->query_tables_last_own was not NULL. sql/sql_plugin.cc: Update to the new signature of check_table_access(). sql/sql_prepare.cc: Update to the new signature of check_table_access(). sql/sql_show.cc: Update to the new signature of check_table_access(). Ensure that check_table_access() only checks access to the first table in the table list when called from list_open_tables(). list_open_tables() supplies a table list that is created on stack, whereas check_table_access() used to assume that the supplied list is a part of thd->lex. sql/sql_trigger.cc: Update to the new signature of check_table_access(). sql/sql_view.cc: Update to the new signature of check_table_access().	18 years ago
unknown	a3561354a2	Bug#30887 Server crashes on SET GLOBAL query_cache_size=0 Reseting the query cache by issuing a SET GLOBAL query_cache_size=0 caused the server to crash if a the server concurrently was saving a new result set to the query cache. The reason for this was that the invalidation wasn't waiting on the result writers to release the block level locks on the query cache. mysql-test/r/query_cache.result: Added test for verifying that 'SET query_cache_size= 0' while inserting new statements into the query cache won't cause the server to crash. mysql-test/t/query_cache.test: Added test for verifying that 'SET query_cache_size= 0' while inserting new statements into the query cache won't cause the server to crash. sql/sql_cache.cc: - Applying a block level lock iteration of all query-type blocks prevents writers and readers from crashing when the query cache is removed.	18 years ago
unknown	2a0d2fef51	Bug#12713 "Error in a stored function called from a SELECT doesn't cause ROLLBACK of statement", part 1. Review fixes. Do not send OK/EOF packets to the client until we reached the end of the current statement. This is a consolidation, to keep the functionality that is shared by all SQL statements in one place in the server. Currently this functionality includes: - close_thread_tables() - log_slow_statement(). After this patch and the subsequent patch for Bug#12713, it shall also include: - ha_autocommit_or_rollback() - net_end_statement() - query_cache_end_of_result(). In future it may also include: - mysql_reset_thd_for_next_command(). include/mysql_com.h: Rename now unused members of NET: no_send_ok, no_send_error, report_error. These were server-specific variables related to the client/server protocol. They have been made obsolete by this patch. Previously the same members of NET were used to store the error message both on the client and on the server. The error message was stored in net.last_error (client: mysql->net.last_error, server: thd->net.last_error). The error code was stored in net.last_errno (client: mysql->net.last_errno, server: thd->net.last_errno). The server error code and message are now stored elsewhere (in the Diagnostics_area), thus NET members are no longer used by the server. Rename last_error to client_last_error, last_errno to client_last_errno to avoid potential bugs introduced by merges. include/mysql_h.ic: Update the ABI file to reflect a rename. Renames do not break the binary compatibility. libmysql/libmysql.c: Rename last_error to client_last_error, last_errno to client_last_errno. This is necessary to ensure no unnoticed bugs introduced by merged changesets. Remove net.report_error, net.no_send_ok, net.no_send_error. libmysql/manager.c: Rename net.last_errno to net.client_last_errno. libmysqld/lib_sql.cc: Rename net.last_errno to net.client_last_errno. Update the embedded implementation of the client-server protocol to reflect the refactoring of protocol.cc. libmysqld/libmysqld.c: Rename net.last_errno to net.client_last_errno. mysql-test/r/events.result: Update to reflect the change in mysql_rm_db(). Now we drop stored routines and events for a given database name only if there is a directory for this database name. ha_drop_database() and query_cache_invalidate() are called likewise. Previously we would attempt to drop routines/events even if database directory was not found (it worked, since routines and events are stored in tables). This fixes Bug 29958 "Weird message on DROP DATABASE if mysql.proc does not exist". The change was done because the previous code used to call send_ok() twice, which led to an assertion failure when asserts against it were added by this patch. mysql-test/r/grant.result: Fix the patch for Bug 16470, now FLUSH PRIVILEGES produces an error if mysql.procs_priv is missing. This fixes the assert that send_ok() must not called after send_error() (the original patch for Bug 16470 was prone to this). mysql-test/suite/rpl/r/rpl_row_tabledefs_2myisam.result: Produce a more detailed error message. mysql-test/suite/rpl/r/rpl_row_tabledefs_3innodb.result: Produce a more detailed error message. mysql-test/t/grant.test: Update the test, now FLUSH PRIVILEGES returns an error if mysql.procs_priv is missing. server-tools/instance-manager/mysql_connection.cc: Rename net.last_errno to net.client_last_errno. sql/ha_ndbcluster_binlog.cc: Add asserts. Use getters to access statement status information. Add a comment why run_query() is broken. Reset the diagnostics area in the end of run_query() to fulfill the invariant that the diagnostics_area is never assigned twice per statement (see the comment in the code when this can happen). We still do not clear thd->is_fatal_error and thd->is_slave_error, which may lead to bugs, I consider the whole affair as something to be dealt with separately. sql/ha_partition.cc: fatal_error() doesn't set an error by itself. Perhaps we should remove this method altogether and instead add a flag to my_error to set thd->is_fatal_error property. Meanwhile, this change is a part of inspection made to the entire source code with the goal to ensure that fatal_error() is always accompanied by my_error(). sql/item_func.cc: There is no net.last_error anymore. Remove the obsolete assignment. sql/log_event.cc: Use getters to access statement error status information. sql/log_event_old.cc: Use getters to access statement error status information. sql/mysqld.cc: Previously, if a continue handler for an error was found, my_message_sql() would not set an error in THD. Since the current statement must be aborted in any case, find_handler() had a hack to assign thd->net.report_error to 1. Remove this hack. Set an error in my_message_sql() even if the continue handler is found. The error will be cleared anyway when the handler is executed. This is one action among many in this patch to ensure the invariant that whenever thd->is_error() is TRUE, we have a message in thd->main_da.message(). sql/net_serv.cc: Use a full-blown my_error() in net_serv.cc to report an error, instead of just setting net->last_errno. This ensures the invariant that whenever thd->is_error() returns TRUE, we have a message in thd->main_da.message(). Remove initialization of removed NET members. sql/opt_range.cc: Use my_error() instead of just raising thd->net.report_error. This ensures the invariant that whenever thd->is_error() returns TRUE, there is a message in thd->main_da.message(). sql/opt_sum.cc: Move invocation of fatal_error() right next to the place where we set the error message. That makes it easier to track that whenever fatal_error() is called, there is a message in THD. sql/protocol.cc: Rename send_ok() and send_eof() to net_send_ok() and net_send_eof() respectively. These functions write directly to the network and are not for use anywhere outside the client/server protocol code. Remove the code that was responsible for cases when either there is no error code, or no error message, or both. Instead the calling code ensures that they are always present. Asserts are added to enforce the invariant. Instead of a direct access to thd->server_status and thd->total_warn_count use function parameters, since these from now on don't always come directly from THD. Introduce net_end_statement(), the single-entry-point replacement API for send_ok(), send_eof() and net_send_error(). Implement Protocol::end_partial_result_set to use in select_send::abort() when there is a continue handler. sql/protocol.h: Update declarations. sql/repl_failsafe.cc: Use getters to access statement status information in THD. Rename net.last_error to net.client_last_error. sql/rpl_record.cc: Set an error message in prepare_record() if there is no default value for the field -- later we do print this message to the client. sql/rpl_rli.cc: Use getters to access statement status information in THD. sql/slave.cc: In create_table_from_dump() (a common function that is used in LOAD MASTER TABLE SQL statement and COM_LOAD_MASTER_DATA), instead of hacks with no_send_ok, clear the diagnostics area when mysql_rm_table() succeeded. Update has_temporary_error() to work correctly when no error is set. This is the case when Incident_log_event is executed: it always returns an error but does not set an error message. Use getters to access error status information. sql/sp_head.cc: Instead of hacks with no_send_error, work through the diagnostics area interface to suppress sending of OK/ERROR packets to the client. Move query_cache_end_of_result before log_slow_statement(), similarly to how it's done in dispatch_command(). sql/sp_rcontext.cc: Remove hacks with assignment of thd->net.report_error, they are not necessary any more (see the changes in mysqld.cc). sql/sql_acl.cc: Use getters to access error status information in THD. sql/sql_base.cc: Access thd->main_da.sql_errno() only if there is an error. This fixes a bug when auto-discovery, that was effectively disabled under pre-locking. sql/sql_binlog.cc: Remove hacks with no_send_ok/no_send_error, they are not necessary anymore: the caller is responsible for network communication. sql/sql_cache.cc: Disable sending of OK/ERROR/EOF packet in the end of dispatch_command if the response has been served from the query cache. This raises the question whether we should store EOF packet in the query cache at all, or generate it anew for each statement (we should generate it anew), but this is to be addressed separately. sql/sql_class.cc: Implement class Diagnostics_area. Please see comments in sql_class.h for details. Fix a subtle coding mistake in select_send::send_data: when on slave, an error in Item::send() was ignored. The problem became visible due to asserts that the diagnostics area is never double assigned. Remove initialization of removed NET members. In select_send::abort() do not call select_send::send_eof(). This is not inheritance-safe. Even if a stored procedure continue handler is found, the current statement is aborted, not succeeded. Instead introduce a Protocol API to send the required response, Protocol::end_partial_result_set(). This simplifies implementation of select_send::send_eof(). No need to add more asserts that there is no error, there is an assert inside Diagnostics_area::set_ok_status() already. Leave no trace of no_send_* in the code. sql/sql_class.h: Declare class Diagnostics_area. Remove the hack with no_send_ok from Substatement_state. Provide inline implementations of send_ok/send_eof. Add commetns. sql/sql_connect.cc: Remove hacks with no_send_error. Since now an error in THD is always set if net->error, it's not necessary to check both net->error and thd->is_error() in the do_command loop. Use thd->main_da.message() instead of net->last_errno. Remove the hack with is_slave_error in sys_init_connect. Since now we do not reset the diagnostics area in net_send_error (it's reset at the beginning of the next statement), we can access it safely even after execute_init_command. sql/sql_db.cc: Update the code to satisfy the invariant that the diagnostics area is never assigned twice. Incidentally, this fixes Bug 29958 "Weird message on DROP DATABASE if mysql.proc does not exist". sql/sql_delete.cc: Change multi-delete to abort in abort(), as per select_send protocol. Fixes the merge error with the test for Bug 29136 sql/sql_derived.cc: Use getters to access error information. sql/sql_insert.cc: Use getters to access error information. sql-common/client.c: Rename last_error to client_last_error, last_errno to client_last_errno. sql/sql_parse.cc: Remove hacks with no_send_error. Deploy net_end_statement(). The story of COM_SHUTDOWN is interesting. Long story short, the server would become on its death's door, and only no_send_ok/no_send_error assigned by send_ok()/net_send_error() would hide its babbling from the client. First of all, COM_QUIT does not require a response. So, the comment saying "Let's send a response to possible COM_QUIT" is not only groundless (even mysqladmin shutdown/mysql_shutdown() doesn't send COM_QUIT after COM_SHUTDOWN), it's plainly incorrect. Secondly, besides this additional 'OK' packet to respond to a hypothetical COM_QUIT, there was the following code in dispatch_command(): if (thd->killed) thd->send_kill_message(); if (thd->is_error() net_send_error(thd); This worked out really funny for the thread through which COM_SHUTDOWN was delivered: we would get COM_SHUTDOWN, say okay, say okay again, kill everybody, get the kill signal ourselves, and then attempt to say "Server shutdown in progress" to the client that is very likely long gone. This all became visible when asserts were added that the Diagnostics_area is not assigned twice. Move query_cache_end_of_result() to the end of dispatch_command(), since net_send_eof() has been moved there. This is safe, query_cache_end_of_result() is a no-op if there is no started query in the cache. Consistently use select_send interface to call abort() or send_eof() depending on the operation result. Remove thd->fatal_error() from reset_master(), it was a no-op. in hacks with no_send_error woudl save us from complete breakage of the client/server protocol. Consistently use select_send::abort() whenever there is an error, and select_send::send_eof() in case of success. The issue became visible due to added asserts. sql/sql_partition.cc: Always set an error in THD whenever there is a call to fatal_error(). sql/sql_prepare.cc: Deploy class Diagnostics_area. Remove the unnecessary juggling with the protocol in Select_fetch_protocol_binary::send_eof(). EOF packet format is protocol-independent. sql/sql_select.cc: Call fatal_error() directly in opt_sum_query. Call my_error() whenever we call thd->fatal_error(). sql/sql_servers.cc: Use getters to access error information in THD. sql/sql_show.cc: Use getters to access error information in THD. Add comments. Call my_error() whenever we call fatal_error(). sql/sql_table.cc: Replace hacks with no_send_ok with the interface of the diagnostics area. Clear the error if ENOENT error in ha_delete_table(). sql/sql_update.cc: Introduce multi_update::abort(), which is the proper way to abort a multi-update. This fixes the merge conflict between this patch and the patch for Bug 29136. sql/table.cc: Use a getter to access error information in THD. sql/tztime.cc: Use a getter to access error information in THD.	18 years ago
unknown	fc70ac4627	Sundry changes to fix merge problems. Most of these are duplicated in 5.0-community, but pulling to merge was very hard. sql/mysql_priv.h: Add new extern "C" qualification to set_thd_proc_info(). Fix typo in merge. sql/mysqld.cc: Replace obselete gptr with uchar* . Add missing #endif from merge problem. sql/set_var.cc: Include new parameter to user variable contruction. sql/sql_cache.cc: Remove duplicate line from merge problem. sql/sql_profile.cc: struct st_table_list is now typedef'd to a new name. ST_FIELD_INFO now includes a new member, a pointer to an open_table function. sql/sql_profile.h: struct st_table_list is now typedef'd to a new name.	18 years ago
unknown	4a0ec7864e	Doxygenized comments.	18 years ago
unknown	1f8126190b	Bug#30710 query_cache.test fails on embedded - per-column privs test The embedded version of the server doesn't use column level grants, and the compile directive NO_EMBEDDED_ACCESS_CHECKS should be checked instead of the redundant HAVE_QUERY_CACHE (which is always the case) to determine if column level grants should be compiled or not. mysql-test/r/query_cache.result: Updated result file mysql-test/r/query_cache_notembedded.result: Updated result file mysql-test/t/query_cache.test: Moved test with GRANT to query_cache_notembedded test. mysql-test/t/query_cache_notembedded.test: Moved test with GRANT to query_cache_notembedded test. sql/sql_cache.cc: Changed the conditional compilation directive to only compile column level grant checks if NO_EMBEDDED_ACCESS_CHECKS isn't defined.	18 years ago
unknown	319c6ef199	Bug #30768 query cache patch for bug #21074 crashes on windows "pthread_mutex_trylock" isn't implemented correctly for the Windows platform. This temporary patch reverts the patch for bug#21074 for Windows until pthread_mutex_trylock is properly implemented. sql/sql_cache.cc: Added code branch for the Windows platform to avoid a faulty pthread_mutex_trylock implementation.	18 years ago
unknown	d2a0a4d53a	- Fix cross compatibility issues by exchanging pthread_yield with my_sleep(0)	19 years ago
unknown	733bd4fe81	Bug #21074 Large query_cache freezes mysql server sporadically under heavy load Invaldating a subset of a sufficiently large query cache can take a long time. During this time the server is efficiently frozen and no other operation can be executed. This patch addresses this problem by setting a time limit on how long time a dictionary access request can take before giving up on the attempt. This patch does not work for query cache invalidations issued by DROP, ALTER or RENAME TABLE operations. sql/sql_cache.cc: Changed mutex locking to a timed spinn lock. If access to query cache dictionary takes "a long time" (currently more than 0.1 seconds) the system fall backs on ordinary statement execution.	19 years ago
unknown	6d409e8f82	Fixed bug #30201 . Recommit to 5.1.22. Killing a SELECT query with KILL QUERY or KILL CONNECTION causes a server crash if the query cache is enabled. Normal evaluation of a query may be interrupted by the KILL QUERY/CONNECTION statement, in this case the mysql_execute_command function returns TRUE, and the thd->killed flag has true value. In this case the result of the query may be cached incompletely (omitting call to query_cache_insert inside the net_real_write function), and next call to query_cache_end_of_result may lead to server crash. Thus, the query_cache_end_of_result function has been modified to abort query cache in the case of killed thread. sql/sql_cache.cc: Fixed bug #30201. Recommit to 5.1.22. The query_cache_end_of_result function has been modified to abort query cache in the case of query execution failure. Also this function has been modified to remove incomplete query block.	19 years ago
unknown	891b1659fc	Fixed bug #30201 . Killing a SELECT query with KILL QUERY or KILL CONNECTION causes a server crash if the query cache is enabled. Normal evaluation of a query may be interrupted by the KILL QUERY/CONNECTION statement, in this case the mysql_execute_command function returns TRUE, and the thd->killed flag has true value. In this case the result of the query may be cached incompletely (omitting call to query_cache_insert inside the net_real_write function), and next call to query_cache_end_of_result may lead to server crash. Thus, the query_cache_end_of_result function has been modified to abort query cache in the case of killed thread. sql/sql_cache.cc: Fixed bug #30201. The query_cache_end_of_result function has been modified to abort query cache in the case of query execution failure. Also this function has been modified to remove incomplete query block.	19 years ago
unknown	3a5a0ea392	Bug#30269 Query cache eats memory Although the query cache doesn't support retrieval of statements containing column level access control, it was still possible to cache such statements thus wasting memory. This patch extends the access control check on the target tables to avoid caching a statement with column level restrictions. Views are excepted and can be cached but only retrieved by super user account. mysql-test/t/query_cache_with_views.test: Rename: mysql-test/t/view_query_cache.test -> mysql-test/t/query_cache_with_views.test mysql-test/r/query_cache_with_views.result: Rename: mysql-test/r/view_query_cache.result -> mysql-test/r/query_cache_with_views.result mysql-test/r/query_cache.result: Modified test case to allow caching of views mysql-test/t/query_cache.test: Modified test case to allow caching of views sql/sql_cache.cc: Allow caching of views	19 years ago
unknown	bd80048fdb	Bug #30269 Query cache eats memory Although the query cache doesn't support retrieval of statements containing column level access control, it was still possible to cache such statements thus wasting memory. This patch extends the access control check on the target tables to avoid caching a statement with column level restrictions. mysql-test/r/query_cache.result: Added test mysql-test/t/query_cache.test: Added test sql/sql_cache.cc: The function check_table_access leaves the artifact grant.want_privileges= 1, if a statement refers to tables with column level privileges. To avoid the statement from being stored into the query cache, it is enough to check this flag and set 'safe_to_cache_query' to zero. sql/sql_cache.h: - Removed 'static' attribute or class methods - Added THD parameter to process_and_count_tables	19 years ago
unknown	f9ea427508	Set --debug-check if one uses DBUG_PUSH in all clients Fixed bug in query cache that made it impossible to run mysqld with --debug Fixed memory leaks in mysqldump and mysqltest Memory leaks associated with wrong usage of mysqltest is not fixed. To find these, run mysql-test-run --debug mysqltest client/mysql_upgrade.c: Set --debug-check if one uses DBUG_PUSH client/mysqlcheck.c: Set --debug-check if one uses DBUG_PUSH client/mysqldump.c: Set --debug-check if one uses DBUG_PUSH Fixed several memory leaks client/mysqlimport.c: Set --debug-check if one uses DBUG_PUSH client/mysqlshow.c: Set --debug-check if one uses DBUG_PUSH client/mysqlslap.c: Set --debug-check if one uses DBUG_PUSH client/mysqltest.c: Set --debug-check if one uses DBUG_PUSH Fixed some memory leaks Removed MY_CHECK_ERROR argument to my_end() as mysqltest.test otherwise shows MANY memory leaks dbug/dbug.c: Fixed compiler warning Force flush of out_file on end Removed some wrong dbug_flush(0) commands that could cause crashes mysys/my_init.c: Don't write memory usage if MY_GIVE_INFO is not given sql/sql_cache.cc: Fixed bug in query cache that made it impossible to run mysqld with --debug	19 years ago
unknown	43a6c7804b	Post-merge fixes Fixed debug code of new query cache implementation.	19 years ago
unknown	b6c0fb605d	Fix ndb_cache* test failures in the -runtime tree. Do not try to acquire structure_guard_mutex for the second time when invalidating a table from send_result_to_client. sql/sql_cache.cc: Do not try to acquire mutex when invalidating a table from send_result_to_client(). A follow up patch for the patch for Bug#21074. Reuse code by moving locking-independent invalidation functionality into invalidate_table_internal. sql/sql_cache.h: Add a new declaration.	19 years ago
unknown	9a52e13ccb	Fix a warning in a non-debug build.	19 years ago
unknown	bd8b9746bf	WL#3914: Additonal accessors required to compile InnoDB as a plugin storage engine Add more accessors to MySQL internals in mysql/plugin.h, for storage engine plugins. Add some accessors specific to the InnoDB storage engine, to allow InnoDB to be compiled as a plugin (without MYSQL_SERVER). InnoDB has additional requirements, due to its foreign key support, etc. include/m_string.h: Add structure tag to LEX_STRING definition, so that it can be referred to by forward declarations. Allow struct st_mysql_lex_string to be defined here, or in mysql/plugin.h. include/my_global.h: Define INNODB_COMPATIBILITY_HOOKS unconditionally; it brackets some definitions needed for the InnoDB storage engine plugin which do not belong in our general plugin interface. include/mysql/plugin.h: Additional accessors for MySQL internals: - Full definition of MYSQL_LEX_STRING (identical to LEX_STRING from m_string.h) - Full definition of MYSQL_XID (binary compatible with XID from handler.h) - mysql_tmpfile(), creates a temporary file in mysqld's tmpdir - thd_killed(), to check killed state of connection - thd_alloc() and similar allocation functions - thd_get_xid(), to get XID of connection's transaction - mysql_query_cache_invalidate4, to invalidate a table's query cache entries sql/handler.h: Use MYSQL_XIDDATASIZE definition from mysql/plugin.h, to avoid redundant definitions sql/log.cc: Add definitions for two InnoDB compatibility hooks: - mysql_bin_log_file(), to get log filename - mysql_bin_log_file_pos, to get position in file These are defined only if INNODB_COMPATIBILITY_HOOKS is defined; they are needed by the InnoDB plugin, but aren't part of the general plugin interface. They are declared in ha_innodb.h for InnoDB's use. sql/mysql_priv.h: Expose some server internals when INNODB_COMPATIBILITY_HOOKS is defined, so that InnoDB can be built as a plugin when MYSQL_SERVER is not defined. Move make_lex_string inside THD class. sql/sql_cache.cc: Add definiton of mysql_query_cache_invalidate4(), a part of the plugin API (mysql/plugin.h). sql/sql_class.cc: Add definitions for several accessor functions which form part of the plugin API (mysql/plugin.h): - mysql_tmpfile() - thd_alloc() and friends - thd_make_lex_string() - thd_get_xid() Add definitons for accessor functions which InnoDB requires, but which are not part of the plugin interface: - thd_charset() - thd_query() - thd_slave_thread() - thd_non_transactional_update() - thd_binlog_format() Move definition of make_lex_string() from sql_show.cc into THD class sql/sql_class.h: Remove LEX_STRING_make(), and move make_lex_string() from sql_show.cc inside THD class. sql/sql_parse.cc: Use thd->make_lex_string() instead of thd->LEX_STRING_make() sql/sql_show.cc: Move make_lex_string() inside THD class storage/innobase/handler/ha_innodb.cc: Call thd_make_lex_string() instead of make_lex_string().	19 years ago
unknown	289cc26c64	Bug#21074 Large query_cache freezes mysql server sporadically under heavy load Invaldating a subset of a sufficiently large query cache can take a long time. During this time the server is efficiently frozen and no other operation can be executed. This patch addresses this problem by moving the locks which cause the freezing and also by temporarily disable the query cache while the invalidation takes place. sql/ha_ndbcluster.cc: - mysql_rm_table_part2 has a new parameter to indicate if OPEN_lock mutex protection is needed. sql/lock.cc: - Added function for acquiring table name exclusive locks. - Added function for asserting that table name lock is acquired. sql/mysql_priv.h: - Added function for acquiring table name exclusive locks. - Added function for asserting that table name lock is acquired. - Added parameter to mysql_rm_table_part2 to indicate whether OPEN_lock mutex protection is needed or not. sql/sql_cache.cc: - Changed flush_in_progress-flag into a state and added a function, is_flushing() to reflect on this state. A new state was needed to indicate that a partial invalidation was in progress. - An unused parameter 'under_guard' was removed. - The Query_cache mutex structural_guard was pushed down into one invalidate_table function to avoid multiple entry points which makes maintainens more difficult. - Instead of keeping the structural_guard mutex during the entire invalidation we set the query cache status state to TABLE_FLUSH_IN_PROGRESS to temporarily disable the cache and avoid locking other threads needing the Query_cache resource. sql/sql_cache.h: - Changed flush_in_progress-flag into a state and added a function, is_flushing() to reflect on this state. A new state was needed to indicate that a partial invalidation was in progress. - An unused parameter 'under_guard' was removed. - The Query_cache mutex structural_guard was pushed down into one invalidate_table function to avoid multiple entry points which makes maintainens more difficult. - Instead of keeping the structural_guard mutex during the entire invalidation we set the query cache status state to TABLE_FLUSH_IN_PROGRESS to temporarily disable the cache and avoid locking other threads needing the the Query_cache resource. sql/sql_db.cc: - mysql_rm_table_part2_with_lock is redundant and replaced with mysql_rm_table_part2. sql/sql_parse.cc: - Function query_cache_invalidate3 isn't protect by a lock and we have a race condition. - Moving this function into mysql_rename_tables and make sure it is protected by a exclusive table name lock. sql/sql_rename.cc: - Function query_cache_invalidation3 isn't protect by a lock and we have a race condition. - Moving this function into mysql_rename_tables and make sure it is protected by a exclusive table name lock. - Instead of using LOCK_open mutex, which excludes all other threads, the lock is changed into exclusive table name locks instead. This prevents us from locking the server if a query cache invalidation would take a long time to complete. sql/sql_table.cc: - Instead of using LOCK_open mutex, which excludes all other threads, the lock is changed into exclusive table name locks instead. This prevents us from locking the server if a query cache invalidation would take a long time to complete. - Added new parameter to mysql_rm_table_part2 to control whether OPEN_lock mutex needs to be aquired or not. This is currently needed by the NDB implemenation. sql/sql_trigger.cc: - Table_triggers don't need to be protexted by LOCK_open mutex. This patch cancel this restriction. - Refactored comments to doxygen style.	19 years ago
unknown	b9dc6ad7ab	Bug#28211 RENAME DATABASE and query cache don't play nicely together When all table blocks were removed from the query cache the client session hung in a tight loop waiting on an impossible condition while consuming a lot of CPU. This patch also corrects an error which caused valid tables to sometimes be removed from the query cache. mysql-test/r/query_cache.result: Added test case to make sure server doesn't hang in a tight loop if last table block is removed from the cache. mysql-test/t/query_cache.test: Added test case to make sure server doesn't hang in a tight loop if last table block is removed from the cache. sql/sql_cache.cc: - Refactored loop over table blocks. The invalidate_table() function effects the elements over which we iterate. The previous stop condition was broken due to a compiler optimization error probably caused by the goto-statement pointing out of the loop. The effect being that tables_blocks was never checked for null values and thus the loop never terminated. - The new implementation uses two while loops instead of a goto-statement. The tables_blocks is a circular list which becomes null if the last table block is removed from the list.	19 years ago
unknown	7f35d66d79	- Corrected type misstake in debug statement.	19 years ago
unknown	548070849a	- This patch addesses the performance issues with invalidating the entire cache by changing the behavior of the query cache resize-method. - set query_cache_size=<new_size>; is significantly faster than RESET QUERY CACHE as it simply destroys and recreates the query cache, whereas RESET QUERY CACHE keeps its internal structure aligned with server load profile. sql/set_var.cc: Refactored behavior of function. Instead of setting the global variable from within the class method scope we return the new cache size as a result of the method call. sql/sql_cache.cc: - Changed behavior of resize-method. Now, the cache will be cleared as one single block of data instead of an iteration over all cached statements.	19 years ago
unknown	00c535b91b	Fixed error from merge misstake; missing line in debug statement.	19 years ago

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375 Commits (716f7843757f96649cca1f5dc3df5d9659b17da9)