274 Commits (27d2c8a93f83beea2e79bf6ec7204a31c6f6b7e6)

Author	SHA1	Message	Date
René Cannaò	4a12260df3	Purge MySQL_STMTs_meta entries when not used ... MySQL_STMTs_meta() is aware to which session it belongs entries are removed from MySQL_STMTs_meta() when unused find_prepared_statement_by_hash() increases the client ref count Hardcoded a maximum number of statements	10 years ago
René Cannaò	016b596a0f	MySQL_STMTs_local is aware of being client or not ... The called of MySQL_STMTs_local functions doesn't must specify if it is a client or a backend. Added also a function in MySQL_Connection to make the connection aware it is a client.	10 years ago
René Cannaò	b917da91a9	Added incomplete support for STMT_RESET ... Also added some client for testing	10 years ago
René Cannaò	40187c6bf2	Uninitialized start_time during STMT_EXECUTE	10 years ago
René Cannaò	92f3496383	Return empty result for SHOW WARNINGS #696 ... The current version of ProxySQL filters SHOW WARNINGS returning an empty resultset. This implementation is logically incorrect, and in future version a better implementation will be developed	10 years ago
René Cannaò	74c4bf3210	Added STRESSTEST_POOL ... Enabling STRESSTEST_POOL ProxySQL will do a lot of loops in the connection pool This is for internal testing ONLY!!!! DO NOT ENABLE IT	10 years ago
René Cannaò	baf13c63bf	Commit to revert. Here for testing only	10 years ago
René Cannaò	5b5d924dc1	Merge branch 'v1.2.3' into 1.3.0-alpha-merge123 ... Conflicts: lib/MySQL_Session.cpp lib/ProxySQL_Admin.cpp src/Makefile	10 years ago
René Cannaò	29f8012d6c	No proper cleanup if CHANGE_USER fails #682	10 years ago
René Cannaò	7f652375b5	Merge branch 'v1.2.2-644' into v1.2.2	10 years ago
René Cannaò	a49b4ad2a9	Merge branch 'master' into v1.2.2	10 years ago
Daniël van Eeden	abff6a82db	Add connection attributes for proxysql→mysql connections	10 years ago
René Cannaò	12e1223125	Local connection cache #644 ... This is an attempt to improve scalability adding a local connection cache per thread	10 years ago
René Cannaò	71d1d8fc66	Bug fix related to #656	10 years ago
René Cannaò	1b4afb7743	Futher development for prepared statements ... MySQL_STMT_Manager now stores 2 reference counters per statement: one for client and one for server Statement client side are removed with STMT_CLOSE command is processed Bytes sends and received are accounted globally and per server	10 years ago
René Cannaò	d9afe2b012	Prepared Statements and query digest	10 years ago
René Cannaò	e0c7ca209a	Implemented PROCESSLIST with Prepared Statements	10 years ago
Rene Cannao	2d541fb275	Fixing two memory leaks ... These are 2 memory leaks related to prepared statements * Resultset (MySQL_ResultSet() not deallocated * mysql_stmt_free_result() is now correctly called	10 years ago
René Cannaò	ff3411f562	Continuing work on PS ... * fixed multiplexing * fixed memory leak	10 years ago
René Cannaò	60c35d8f67	Continuing work on PS ... Introduced classes: * stmt_execute_metadata_t * MySQL_STMTs_meta	10 years ago
René Cannaò	a68e5721eb	Unstable changes to support prepared statements ... So far, single thread sysbench is working. Multi-threaded and resume from broken connections is still not working. It means it still needs a lot of changes.	10 years ago
René Cannaò	fd7fa08cf5	More support for Prepared Statements ... sysbench starts running	10 years ago
René Cannaò	d51bed1718	Reduce frequent alloc of Query_Processor_Output ... A new Query_Processor_Output (qpo) is allocated for every query. Allocation is now done once per session, thus speeding up execution time under memory profiler	10 years ago
René Cannaò	e019047937	Removed few redundant lines of code	10 years ago
René Cannaò	caea6ce302	Simplifying MySQL_Session::Handler() , 4 ... Added function: * handler_again___status_CHANGING_AUTOCOMMIT(int *)	10 years ago
René Cannaò	15ba30fd83	Simplifying MySQL_Session::Handler() , 3 ... Added function: * handler_again___status_CHANGING_USER_SERVER(int *) Fixed indentation in handler_again___status_CONNECTING_SERVER	10 years ago
René Cannaò	8f3c0e1b2f	Simplifying MySQL_Session::Handler() , 2 ... Added functions: * handler_again___verify_backend_charset(); * handler_again___verify_init_connect(); * handler_again___verify_backend_autocommit(); * handler_again___verify_backend_user_schema(); * handler_again___status_SETTING_INIT_CONNECT(int *); * handler_again___status_CHANGING_SCHEMA(int *); * handler_again___status_CONNECTING_SERVER(int *);	10 years ago
René Cannaò	da8d6d8cf3	Simplifying MySQL_Session::Handler() , 1 ... Added functions: * void handler___status_WAITING_CLIENT_DATA___STATE_SLEEP___MYSQL_COM_QUERY___create_mirror_session() * int handler_again___status_PINGING_SERVER(); * void handler_again___new_thread_to_kill_connection();	10 years ago
René Cannaò	febd61bc9e	Merge branch 'PrepStmtExec' into 1.3.0-alpha ... Conflicts: include/MySQL_Protocol.h include/mysql_connection.h lib/Makefile lib/MySQL_Session.cpp	10 years ago
René Cannaò	604fa378d2	A lot of experimental code for prepared statements	10 years ago
René Cannaò	b8d3bd884c	Added more memory metrics #634 ... * mysql_backend_buffers_bytes * mysql_frontend_buffers_bytes * mysql_session_internal_bytes * ConnPool_memory_bytes	10 years ago
René Cannaò	43f77f516f	Internal timers metrics #635 ... Added status variables: * Backend_query_time_nsec * Query_Processor_time_nsec	10 years ago
René Cannaò	f4c7df34cf	Limit the amount of data received by a backend ... Issue #527 Limit the amount of data received by a backend during a single poll() iteration. Right now the default is mysql_thread___threshold_resultset_size*2, and it is arbitary. Unrelated to #527, MySQL_Connection::async_ping() was modified to return a different value in case of timeout	10 years ago
René Cannaò	17b7e1f609	Improve performance due to issue #606 ... jemalloc configured with purge:decay_time Temporary disabled jemalloc to test a heap profiler (heaptrack) MySQL_ResultSet::buffer_to_PSarrayOut() calls realloc() if the buffer preallocated is too big MySQL_Session::writeout() sends as much data as possible to the client	10 years ago
René Cannaò	5c9c8b9224	Monitor user can always login in admin with stats credentials ... This minor patch ensures that Monitor user can access the Admin module with stas credentials	10 years ago
René Cannaò	3de224d0df	Fix for bug #601 , SET SESSION character_set_server	10 years ago
René Cannaò	1372510965	Merge branch 'issue591' into v1.2.0	10 years ago
René Cannaò	e559cfefe5	Merge branch 'issue588' into v1.2.0 ... Conflicts: lib/ProxySQL_Admin.cpp	10 years ago
René Cannaò	4f6cd7d648	Be more explicit on Access Denied error ... Issue #591 Closes #591	10 years ago
René Cannaò	a7f7397d36	SET NAMES now allows quotes ... Closes #588 Also added new function trim_spaces_and_quotes_in_place()	10 years ago
René Cannaò	c16185042c	Merge branch 'issue526' into v1.2.0 ... Conflicts: include/proxysql_structs.h	10 years ago
René Cannaò	8b04641823	When connections are initialized, queries in mysql-init_connect are executed ... This allows to set custom variables like 'wait_timeout' or 'sort_buffer_size', or others. Issue #590. Closes #590	10 years ago
René Cannaò	e74df97d29	Implementation of variable max_allowed_packet ... This variable limits the amount of data that the client can send to the backend. Note that ProxySQL won't really limit the amount of data that the client can send to the proxy, but the amount of data that the prox can send to the backend. This commits also fixes issue #526 Closes #526	10 years ago
René Cannaò	d5597842fb	Added more verbose output for bug #586	10 years ago
René Cannaò	e99ddf107a	Fis for bug #586 ... mypolls.add() was called with wrong file description. This could cause corruption	10 years ago
René Cannaò	3992121dee	Minor bugfixes related to mirroring	10 years ago
René Cannaò	65e1ae2626	Implemented counter of active transactions #581	10 years ago
René Cannaò	1e817dc2b1	Removed a compiler warning on unused variable	10 years ago
René Cannaò	18f273210d	Drafting STMT_EXECUTE	10 years ago
René Cannaò	22dc1a017d	Code to support STMT_PREPARE ... Variable mysql-stmt_multiplexing is introduced too, but not active	10 years ago
René Cannaò	0ed51d61db	Drafting MySQL_Protocol::generate_STMT_PREPARE_RESPONSE()	10 years ago
René Cannaò	ddd0ad9032	Preparing the handling of _MYSQL_COM_STMT_PREPARE	10 years ago
René Cannaò	d885d4a737	Implementation of max retries ... Added global variables mysql-query_retries_on_failure (default 1) Added new field mysql_query_rules.retries (default NULL)	10 years ago
René Cannaò	65f6dbc22d	Extended mysql_query_rules with new fields ... Fields present but not supported yet - client_addr - proxy_addr - proxy_port - digest - log	10 years ago
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