786 Commits (a1f39bf784dbbb6facd8abef44aa7626bdf41585)

Author	SHA1	Message	Date
René Cannaò	a1f39bf784	2nd drafting tracking of various variables	7 years ago
René Cannaò	91f518d61a	Drafting tracking of various variables: ... - character_set_results - isolation level - session_track_gtids	7 years ago
René Cannaò	0ef9ad832b	Bug fix: improved autocommit logic	7 years ago
René Cannaò	2d3aaf79e5	Replace endpoint_address with domain_name	7 years ago
René Cannaò	f3e7f03998	Implementation of COM_FIELD_LIST ... Port from 1.4.16 to 2.0.6	7 years ago
René Cannaò	7df2227c7c	Merge pull request #2182 from sysown/v2.0.6-perfbench1 ... V2.0.6 perfbench1	7 years ago
René Cannaò	ee5b54d983	Create a wrapper around sqlite3_prepare_v2 ... This should fix several crashes if the internal db is locked or busy	7 years ago
René Cannaò	2fec51c0a9	A lot of changes to make query digest map faster ... Extended SQLite3_result to support a mutex for concurrent rows insert. Extensively rewritten get_query_digests() and get_query_digests_reset() to support multiple threads, and concurrently generate a resultset. Function get_query_digests_reset() defer the deletion of objects from query digest map after generating the resultset for Admin. This drastically reduce the amount of time that query digest map is locked. Rewritten get_query_digests_total_size() to make it multi-threaded. Added 3 new functions for purging: - purge_query_digests() : wrapper - purge_query_digests_sync() : synchronous purge of query digest map, either single-threaded or multi-threaded - purge_query_digests_async() : asynchronous purge of query digest map, single-threaded only If table `stats_mysql_query_digest_reset` is queried but not `stats_mysql_query_digest`, only the first one is populated. If table `stats_mysql_query_digest_reset` is queried and also `stats_mysql_query_digest`, the second one is populated as a copy from the first. Implemented new SQL `TRUNCATE [TABLE]` for `[stats.]stats_mysql_query_digest[_reset]`: this will purge the query digest map as fast as possible without creating any table in SQLite. For testing/benchmark: - modified ProxySQL_Test___GenerateRandomQueryInDigestTable() to generate more random data and randomly switch `mysql_thread___query_digests_normalize_digest_text` Extended command `PROXYSQLTEST` with the following tests: - 1 : generates entries in digest map - 2 : gets all the entries from the digest map, but without writing to DB, with multiple threads - 3 : gets all the entries from the digest map and reset, but without writing to DB, with multiple threads - 4 : purges the digest map, synchronously, in single thread - 5 : purges the digest map, synchronously, in multiple threads - 6 : purges the digest map, asynchronously, in single thread (this seems the faster) Replaced some sprintf() with new function my_itoa() . Modified class QP_query_digest_stats() to include username, schemaname and client_address if no longer than 24 bytes. This makes storage requirement for QP_query_digest_stats() bigger, but reduces a lot of calls to memory management. Modified QP_query_digest_stats::get_row() to drastically reduce the number of malloc/free and string copy. Overall, this commit has the following effects: - it increases the memory usage for query digest map. On test workload, this results in 10% more memory usage - drastically reduces the calls to memory management - populating `stats_mysql_query_digest_reset` is 3 times faster - the amount of time in which query digest map is locked is reduced by 95%	7 years ago
René Cannaò	1658c33375	Adding variable mysql-query_digests_replace_null #2171	7 years ago
René Cannaò	12d9ae1b6b	Fix bug #2096 ... ProxySQL was incorrectly not sending COM_PING when multiplexing is disabled	7 years ago
René Cannaò	4c1f4a8d82	Enhancements on AWS Aurora module ... Added 2 new status variables: - queries_with_max_lag_ms__delayed - queries_with_max_lag_ms__total_wait_time_us Do not get replication lag from replicas if the value is 0 Fixed an error in the computation of max_lag_ms	7 years ago
René Cannaò	ce757db70d	Merge pull request #2156 from sysown/v2.0.6-hg_locked ... V2.0.6 hg locked	7 years ago
René Cannaò	8c4b70a557	Added capability to lock hostgroup ... This should fix a lot of issues related to failed parsing of SET statement. This and the two 2 previous commits introduce several status variables, and a new configuration variable: mysql-set_query_lock_on_hostgroup Possible values for mysql-set_query_lock_on_hostgroup: - 0 : legacy behavior , before 2.0.5 - 1 : (default) . SET statements that cannot be parsed correctly disable both multiplexing AND routing. Attempting to route traffic while a connection is linked to a specific backend connection will trigger an error to be returned to the client	7 years ago
René Cannaò	f2f3935fcd	drafting locked hostgroup	7 years ago
René Cannaò	1bbc3830fa	Fix data type for mysql_thread___session_idle_ms	7 years ago
René Cannaò	6691a867fa	Fix issues/FR #2120 , #2121 and #2125 ... Issue #2120 : Send SESSION_TRACK_GTIDS to client Issue #2121 : Track CLIENT_FOUND_ROWS required by the client Issue #2125 : Track CLIENT_MULTI_STATEMENTS required by the client	7 years ago
René Cannaò	230590bdc8	drafting hostgroup locking	7 years ago
René Cannaò	255d9247b8	Reduce locking on MySQL_Logger writes to disk	7 years ago
René Cannaò	0831740e45	Several enhancements on Query logger ... Enhancements: - added metrics rows_affected and rows_sent - added global variable mysql-eventslog_default_log : if 1 , logging is enabled for every query unless explicitly disabled in mysql_query_rules.log . Default is 0 - added global variable mysql-eventslog_format : default is 1 (legacy format). A value of 2 enables logging in JSON format. Issue #871 Changing value at runtime causes the current file to be closed and a new one created - fixed logging for prepared statements: till 2.0.5 only some percentage of prepared statements was correctly logged Extended tables stats_mysql_query_digest and stats_mysql_query_digest_reset to also include sum_rows_affected and sum_rows_sent Extended `eventslog_reader_sample.cpp` to support the new enhancements	7 years ago
René Cannaò	9ed7094cfe	Implemeting of more locking in SELECT statements ... SELECT ... FOR SHARE SELECT ... LOCK IN SHARE MODE SELECT ... FOR (UPDATE|SHARE) [OF ...] (NOWAIT|SKIP LOCKED)	7 years ago
René Cannaò	15aa025db3	Merge pull request #2067 from sysown/v2.0.5-1183 ... Implementation of audit log	7 years ago
René Cannaò	7ea33a1312	Completing initial implementation of Audit module	7 years ago
René Cannaò	79dd412b48	Fix bug with stored procedures #2059	7 years ago
René Cannaò	9e2c1fdda1	Draft implementation of audit log	7 years ago
René Cannaò	570d0283f5	Added variable monitor_galera_healthcheck_max_timeout_count ... Further testing required	7 years ago
René Cannaò	b12caa1d8c	Adding support for automated testing of Galera ... Using SQLite3 Server as backend	7 years ago
René Cannaò	58ff4ff892	Merge branch 'v2.0.4' into v2.0.1-aurora	7 years ago
René Cannaò	495c933624	Adding table stats.stats_mysql_free_connections ... This table exports metrics about connections in connection pool	7 years ago
René Cannaò	6e34814d34	Adding more internal statistics	7 years ago
René Cannaò	528d8cac38	Improved debugging ... Added new command `PROXYSQL INTERNAL SESSION` that clients can execute to receive internal information about their own connection in JSON format. Added JSON library. Recompiled SQLite3 to support JSON. Added new column `extended_info` in `stats_mysql_processlist`. Added new mysql variable `mysql-show_processlist_extended` that determine the content of `stats_mysql_processlist.extended_info`: - 0 : no info - 1 : JSON format - 2 : JSON format with pretty printing	7 years ago
René Cannaò	68dfaa1640	Merge branch 'v2.0.4' into v2.0.4-1738	7 years ago
René Cannaò	9788643f38	Track NO_BACKSLASH_ESCAPES #1738 ... `SERVER_STATUS_NO_BACKSLASH_ESCAPES` is now tracked. `set sql_mode` is executed immediately if client executes `set sql_mode` specifying `NO_BACKSLASH_ESCAPES`. A backend connection with `SERVER_STATUS_NO_BACKSLASH_ESCAPES` enabled has multiplexing immediately disabled.	7 years ago
René Cannaò	893a0fcc49	Merge branch 'v2.0.4-1994-pool2' into v2.0.1-aurora-1994	7 years ago
René Cannaò	006c042c0b	Adding more protection in monitoring	7 years ago
René Cannaò	92d96815c6	Rewriting connection pool in Monitor ... A lot of debugging code. Most of it should be removed!	7 years ago
René Cannaò	01023d6856	Merge branch 'v2.0.4' into v2.0.1-aurora	7 years ago
René Cannaò	a21da6b450	Port to 2.0 of PR #1922 ... support more mysql system variables to keep mulitplexing enabled Added variable mysql-keep_multiplexing_variables	7 years ago
René Cannaò	e853e052d4	Fixed typo microseconds to milliseconds	7 years ago
René Cannaò	e20acb9a1c	Adding more status variables ... Useful for AWS Aurora, but not only	7 years ago
René Cannaò	6aac86bebc	Changed the way max_lag_ms in query is computed ... It now remembers if the query is waiting for long time	7 years ago
René Cannaò	8469801e74	Implemented first prototype of latency awareness ... Configurable using mysql-min_num_servers_lantency_awareness	7 years ago
René Cannaò	b74181eeea	Added aws_aurora_replicas_skipped_during_query ... aws_aurora_replicas_skipped_during_query is a status variable for better monitoring behavior due to replication lag in AWS Aurora Also fixed lag computing in connection pool	7 years ago
René Cannaò	af0a7100e2	Adding support for max_lag_ms in query	7 years ago
René Cannaò	b36f5d785a	Second commit to support Aurora ... It adds port and endpoint_address in mysql_aws_aurora_hostgroups	7 years ago
Carson Ip	1232a6382e	Fix minor typos	7 years ago
René Cannaò	d1b467e760	Do not kill Session if a backend failed ... This new algorithm makes the backend connection fails instead of killing the session This is an improvement over issue #1085	7 years ago
René Cannaò	0c232bf04b	Do not kill Session if a backend failed ... This new algorithm makes the backend connection fails instead of killing the session This is an improvement over issue #1085	7 years ago
René Cannaò	2e20854684	Second commit (not complete) to support Aurora	7 years ago
René Cannaò	531f3b4021	Adding ldap user variable, first commit	7 years ago
René Cannaò	a35917c346	First commit (not complete) to support Aurora	7 years ago