170 Commits (8e81495beed7454f95e8eed8930c18552eb4bb12)

Author	SHA1	Message	Date
René Cannaò	8e81495bee	Improved logging ... Added logging information for: - client - server - hostgroup_id - digest - duration	10 years ago
René Cannaò	ffd39707db	Support for SERVER_MORE_RESULTS_EXISTS #547	10 years ago
René Cannaò	d2138e8fc9	Fix status bug in MySQL_Session::handler_SetAutocommit()	10 years ago
René Cannaò	37f85e5101	Add trivial support for comments in SET AUTOCOMMIT	10 years ago
René Cannaò	fc9ab855da	First draft for bugs #543 ... When a server isn't responding to ping, it is flagged as shunned and all the connections need to be dropped. All the connections must be dropped before the server is brought back online	10 years ago
René Cannaò	bf0a214e4f	Added function close_mysql() ... close_mysql() is a replacement for mysql_close() It tries to avoid blocking while sending the QUIT command	10 years ago
René Cannaò	f9bda6440f	Optimization in MySQL_Session::handler_CommitRollback()	10 years ago
René Cannaò	c1a18aa2eb	Cleaned unused code ... Some legacy code is not currently used: - removed reference to MySQL_Data_Stream::move_from_OUT_to_OUTpending() - removed reference to MySQL_Data_Stream::PSarrayOUTpending	10 years ago
René Cannaò	53bc17092c	New implementation of fast forward , #528	10 years ago
René Cannaò	35927f14e9	Return error_msg after rewriting the query	10 years ago
René Cannaò	0e01e5e322	Mirroring bug fixes ... Handling of error_msg Fixed crashed on SHOW PROCESSLIST	10 years ago
René Cannaò	bc8c5e175a	Added column mirror_flagOUT in mysql_query_rules ... Mirroring starts when either mirror_hostgroup or mirror_flagOUT is set	10 years ago
René Cannaò	2e276f06f4	Second commit to implement mirroring ... Expanded table `mysql_query_rules` to add `mirror_hostgroup` Expanded struct `_Query_Processor_rule_t` and class `Query_Processor_Output` to support `mirror_hostgroup` Added new variable `mirror_hostgroup` in `MySQL_Session` The following logic ensure that a mirror_hostgroup set when processing the query in the original session is preserved when reprocessing the query in the mirror session: * when a new mirror session is *created* `mirror_hostgroup` is set according to the result of Query_Processor * when a mirror session is *executed* , `mirror_hostgroup` is copied into `default_hostgroup` Current limitations: * queries larger than 15MB aren't mirrorred * upgrade from 1.1 is still not possible it will wipe table mysql_query_rules	10 years ago
René Cannaò	c101fad268	First draft on mirroring feature ... Add new variable MySQL_Session::mirror (false by default) Add new struct MySQL_Session::mirrorPkt (false by default) These functions return immediately if this is a mirror session: * MySQL_Protocol::generate_pkt_EOF() * MySQL_Protocol::generate_pkt_ERR() * MySQL_Protocol::generate_pkt_OK() * MySQL_Protocol::generate_pkt_column_count() * MySQL_Protocol::generate_pkt_field() * MySQL_Protocol::generate_pkt_row3() MySQL_ResultSet::MySQL_ResultSet() exits almost immediately if this is a mirror session Most of the code of these functions is not executed if this is a mirror session: * MySQL_ResultSet::add_eof() * MySQL_ResultSet::get_resultset() In MySQL_Session::writeout() : * `client_myds->write_to_net_poll()` is called only if this is not a mirror session In MySQL_Session::handler(): * if query is a `SELECT` (hardcoded for now) : ** create a new session and mark it as `mirror=true` ** duplicate the query and send it to the new session * if `mirror==true` : ** pretend to read a new query from c`lient_myds` ** proceed normally (with the only exception that no data can be sent to a client) In MySQL_Thread::process_all_sessions() : * if `mirror==true` and `status==WAITING_CLIENT_DATA` it means the session is "completed" so it get destroyed Limitations: * it currently doesn't support large packets * doesn't support different charset * doesn't support transactions	10 years ago
René Cannaò	baabb55273	Fixed bug on Query Cache ... hash was generated on an empty string: all queries were matching	10 years ago
René Cannaò	bd664414a0	Merge branch 'authbug' into beta7	10 years ago
René Cannaò	6c928f7ee5	Fix bug #492	10 years ago
René Cannaò	76a217c839	Removed custom memory allocator ... Issue #487	10 years ago
René Cannaò	88db7d8542	Implementation of enforce_autocommit_on_reads ... See issue #485	10 years ago
René Cannaò	ff0e14608a	Fix error on Server shutdown in progress ... Fix bug #476	10 years ago
René Cannaò	cfd0cf32e8	QueryParserArgs is moved into Query_Info ... This is a further attempt to reduce calls to malloc() QueryParserArgs is no longer a pointer, but a struct inside Query_info	10 years ago
René Cannaò	8793a19eb3	Removed further code per #469	10 years ago
René Cannaò	81c12c7d8d	Added note about #469	10 years ago
René Cannaò	b5792ad2cb	Disabling the smart handling of transactions #469 ... Moved some code from MySQL_Session:handler_special_queries() into two new functions: - MySQL_Session::handler_CommitRollback() - MySQL_Session::handler_SetAutocommit() These two new functions are called nowhere: de facto they are disabled	10 years ago
René Cannaò	896a98bf46	Removed some compiler warnings	10 years ago
René Cannaò	224c8d05e4	More verbose output in case of error during query ... Closes #462	10 years ago
René Cannaò	59caf46326	Added variable mysql-multiplexing ... Related to issue #468 , primarily to work around bug https://mariadb.atlassian.net/browse/MDEV-8338	10 years ago
René Cannaò	f4f0b2892e	Disable multiplexing for connections to Admin #466	10 years ago
René Cannaò	a7353d0c47	Support Admin module as a MySQL backend #466 ... The follow states are disabled in Admin module is the backend: - CHANGING_USER_SERVER - CHANGING_SCHEMA - CHANGING_CHARSET - CHANGING_AUTOCOMMIT - mysql-monitor_username is always added as a possible user : this allows MySQL_Monitor to monitor the backends - admin-admin_credentials and admin-stats_credentials are always added as possible users - mysql-monitor_username , admin-admin_credentials and stats-admin_credentials do not shows in mysql_users table (by design) - the above users have a max_connections limit of 1000 (hardcoded)	10 years ago
René Cannaò	6b1a449260	Fix for bug #461 ... MySQL_Connection::~MySQL_Connection() now only attempts to send the QUIT command The connection is closed no matter if the server is present or not	10 years ago
René Cannaò	518cae6f1f	Fix issue #380	10 years ago
René Cannaò	34971602bb	Fixed length of set autocommit	10 years ago
René Cannaò	36ce914532	Typo in autocommit_cnt	10 years ago
René Cannaò	dd3b7e5a82	Removed any reference to MySQL_Session::pause ... the variable wasn't in used from long time	10 years ago
René Cannaò	ab3b737df1	Extending global mysql status ... In order to understand the performance improvement related to how ProxySQL filters autocommit/commit/rollback, the follows variables were added in GLOBAL MYSQL STATUS - Com_autocommit - Com_autocommit_filtered - Com_commit - Com_commit_filtered - Com_rollback - Com_rollback_filtered	10 years ago
René Cannaò	439087dc45	Improvements on COMMIT and ROLLBACK ... COMMITs and ROLLBACKs are now forwarded to backend only of a transaction is active	10 years ago
René Cannaò	f98eecbf4b	Merge branch 'logger' into v1.1.1	10 years ago
René Cannaò	29edfb2e3c	Merge branch 'QC2' into v1.1.1	10 years ago
René Cannaò	7a4a2092a5	MySQL_Logger implementation ... - Re-enabled MySQL_Logger - handling special case in which mysql-commands_stats and mysql-query_digests are disabled - specifies the length of the query - Query_Info is always initialized	10 years ago
René Cannaò	3f8b12e6ba	Complete #452	10 years ago
René Cannaò	4c937fa1bf	Query Cache timeout in milliseconds ... Issue #452 Closes #452	10 years ago
René Cannaò	5a54234364	Removed reference to query_SQL	10 years ago
René Cannaò	5eff88f24f	Changes on QC ... Summary: removed KV_Btree_Array.cpp removed query_SQL from MySQL_Data_Stream added some documentation for QC_entry_t Query_Cache::get() and Query_Cache::set() now requires also the length of the key Query_Cache::get() and Query_Cache::set() now process hk (the hash key) using the length of the key Query Cache enhancement on user/schema Query Cache now supports distinct entries based on user/schema . This is achieved passing to Query_Cache::set() and Query_Cache::get() the hash that identifies user and schema Test Plan: None Reviewers: rene Differential Revision: http://phab.sysown.com/D3	10 years ago
René Cannaò	60ddf5d8e4	Changes on QC ... removed KV_Btree_Array.cpp removed query_SQL from MySQL_Data_Stream added some documentation for QC_entry_t Query_Cache::get() and Query_Cache::set() now requires also the length of the key Query_Cache::get() and Query_Cache::set() now process hk (the hash key) using the length of the key	10 years ago
René Cannaò	95d2671a4e	Removed a lot of deprecated code	10 years ago
René Cannaò	9331532796	Minor bug in handler___status_WAITING_CLIENT_DATA___STATE_SLEEP___MYSQL_COM_INIT_DB	10 years ago
René Cannaò	35d925ecf2	Query digest is performed on rewritten query ... In case Query_Processor rewrites a query, query digest is run against the new query	10 years ago
René Cannaò	f9e5153d49	Removing useless code	10 years ago
René Cannaò	3449ab0f59	Track and handle autocommit (#438) ... - implement new state CHANGING_AUTOCOMMIT - use mysql_autocommit_start() and mysql_autocommit_end()	10 years ago
René Cannaò	c3e6fda7a4	Track and handle autocommit (#438) ... - MySQL_Session::handler_special_queries() processes set autocommit from clients - to the client is always returned the autocommit value set in the session - set autocommit is either just acknowledged to the client, or forwarded to the backend based on the status of transactions - unless there are query rules to handle SET AUTOCOMMIT , the statement is forwarded to the first found active transaction: this assumes there is just one transactions. Although multiple transactions are possible, handling multiple transactions at the same time seems a dangerous adventure	10 years ago