proxysql

Commit Graph

Author	SHA1	Message	Date
Rahim Kanji	4d91452fc5	Implement backend query cancellation for PostgreSQL #5136 Add support for PostgreSQL query cancellation and backend termination features to allow clients to cancel long-running queries and terminate connections through the standard PostgreSQL protocol. Features implemented: - Intercept pg_backend_pid() queries and return ProxySQL session thread ID - Intercept pg_terminate_backend() to terminate client connections asynchronously - Intercept pg_cancel_backend() to cancel queries on backend connections - Support Cancel Request protocol via separate connection with PID and secret key validation - Return BackendKeyData message on successful authentication with session thread ID and unique cancel secret key This enables clients to use standard PostgreSQL cancellation mechanisms (pg_cancel_backend, pg_terminate_backend, and Cancel Request protocol) while ProxySQL maintains proper session isolation and maps client requests to appropriate backend connections.	5 months ago
Rahim Kanji	23a764eaac	Preserve implicit transactions with pipeline + FLUSH #5118 Previously, each extended-query block was terminated with a SYNC, which caused implicit transactions to commit prematurely. As a result, earlier write operations (INSERT/UPDATE/DELETE) could not be rolled back if a later statement in the same sequence failed. This change switches to libpq pipeline mode and replaces intermediate SYNC messages with FLUSH, ensuring that all client query frames execute as part of the same implicit transaction. A final SYNC is still issued to resynchronize the connection and make it safe for reuse in the pool.	5 months ago
Rahim Kanji	7d5fe54230	Refactor: unify result handling for Parse and Describe Previously, Parse and Describe each had their own query result handling paths. This duplicated a lot of logic and also failed to handle some cases correctly—for example, Notice messages returned by the server during extended-protocol queries. Keeping these separate paths would be hard to maintain and prone to bugs. The simple-query result handling is already mature, optimized, and covers all the necessary cases. Reusing it for Parse and Describe makes behavior consistent across simple and extended query flows, while also reducing duplicate code.	6 months ago
Rahim Kanji	226cb8d225	Merge remote-tracking branch 'Master/v3.0_issue_5102' into v3.0_extended_query_protocol_phase_2	6 months ago
Rahim Kanji	a69a4437d6	If the startup connection includes untracked session parameters (passed via options=), the connection must be destroyed instead of returned to the pool.	6 months ago
Rahim Kanji	abd19113c0	Fix RequestEnd: avoid updating internal state when query failed on backend RequestEnd was applying state changes (session variable restore, rollback-to-savepoint, multiplexing toggle for temp tables/sequences) even when the query failed to execute on the backend connection. This caused internal state to diverge from the actual backend state. Fix: - Add success/failure flag to RequestEnd calls. - Restrict state-changing logic to Simple Query and Prepared Execute. - Ensure logic only runs when the query executed successfully on backend. This keeps internal state aligned with the backend connection state.	6 months ago
Rahim Kanji	42400a1e8a	Commented multi_pkt code	6 months ago
Rahim Kanji	58eac30ff3	Fixed SSL STATUS in PgSQL_Data_Stream	6 months ago
Rahim Kanji	4d195adc89	Renamed Multiplex status from MYSQL to PGSQL Renamed status to ssl_status Removed STATE_SLEEP_MULTI_PACKET from PgSQL session handler	7 months ago
Rahim Kanji	e4c0f5ccd8	Refactored Watchdog and integrated PostgreSQL thread monitoring into its loop.	7 months ago
Rahim Kanji	3619fa5d21	Added pgsql-max_stmts_per_connection variable	7 months ago
Rahim Kanji	f350102f72	Code cleanup	8 months ago
Rahim Kanji	24fecc1f6e	Add PostgreSQL extended query (prepared statement) support in ProxySQL This commit lays the groundwork for handling PostgreSQL’s extended query protocol (prepared statements) by introducing parsing, it's caching and execution framework stubs. - Implement Parse handling - Implement caching of parse (reuse) - Introduce Execute framework stub for future binding and execution logic.	8 months ago
Rahim Kanji	40be1158c2	Finally removed PgSQL_Connection_Placeholder class	1 year ago
Rahim Kanji	570e62b618	Removed MySQL Prepare Statement residual code	1 year ago
Rahim Kanji	794ec0f48d	Merge remote-tracking branch 'Master/v3.0' into v3.0_dynamic_fast_forward	1 year ago
René Cannaò	8218c62dbd	Merge pull request #4740 from sysown/ssl_dynamic_lib Using system OpenSSL library	1 year ago
Rahim Kanji	395a977e68	Merge branch 'v3.0'	1 year ago
Rahim Kanji	ea059eadbf	Added SESSION_FORWARD_TYPE enum to define the type of session forwarding	1 year ago
Rahim Kanji	7feaac3fcd	Removed compression code	1 year ago
Rahim Kanji	6d614a4b99	Merge branch 'v3.0'	1 year ago
Yashwant Sahu	2e46f53baf	1. Removed internal openssl bio structure 2. Added finding system openssl library and using it 3. Removed libssl depedancy	1 year ago
Javier Jaramago Fernández	100630fba5	Second iteration on PostgreSQL monitoring POC This commit packs multiple fixes/improvements: - Added READONLY support for PostgreSQL. - Major rework for queries and statements used on monitoring checks: + Checks/Actions rewrote for single instance checks. + Reuse of prepared statements instance of re-preparation. - Fixed missing error handling in connection creation state machine. - Fixed connection rotation in connection pool (now FIFO). - Added support for configurable batching in scheduler thread, via '_interval_window' variables. These variables allows to define the burstiness of the scheduling within the processing interval. - Added new config variable 'pgsql-monitor_dbname'. Allows to control which 'db' will be target by monitoring connections. - Several fixes for 'poll' timeout computation for worker threads. - Fixed edge cases for current interval detection. - Reduced deviation in scheduling intervals computation. - Refactored and simplified connection event handling. - Improved error messages for monitoring actions. - Replaced several invalid uses of 'mysql_thread___monitor_' in favor or new 'mysql_thread___monitor_*' variables. - Honor '-M' argument for disabling monitoring support.	1 year ago
Rahim Kanji	720441af20	Refactored and Optimized Query Cache with PgSQL Support * Added Query Cache Support for PgSQL: * Introduced new variables for PgSQL Query Cache management: * pgsql-query_cache_size_MB * pgsql-query_cache_soft_ttl_pct * pgsql-query_cache_stores_empty_result * pgsql-query_cache_handle_warnings (not yet utilized) * Overwriting Transaction Status: * Sending current transaction state to the client when a result is returned from the query cache. * This currently does not differentiate between normal and error transaction states—both are treated as active transaction states. * Cache Lifetime Management: Replaced manual reference counting with std::shared_ptr to efficiently manage the lifecycle of cache entries, ensuring proper memory deallocation and reducing complexity. * Unified Purging Logic: Refactored the query cache purging logic to use a single thread for both MySQL and PgSQL cache entries. * Code Cleanup: Removed unnecessary methods and data members to streamline the codebase and improve maintainability. * Performance Optimization: Improved memory management, reducing memory footprint and enhancing performance.	1 year ago
Rahim Kanji	c35a6a24cf	Added stats_pgsql_global table	2 years ago
Rahim Kanji	db3fe26590	PgSQL_Thread will now reset connections independently, eliminating the need for connections purger HGCU_thread_run(). Changes made: Removed pgsql-reset_connection_algorithm Removed pgsql-connpoll_reset_queue_length Removed HGCU_thread_run()	2 years ago
Rahim Kanji	a22aeca394	Reset Session Implementation * Added Reset Session support * Removed dead code	2 years ago
Rahim Kanji	5fbfbf26f6	Merge remote-tracking branch 'Master_POSTGRES/v2.x_postgres' into v2.x_postgres_backend	2 years ago
Rahim Kanji	f9d26c527e	Clear SSL error queue on shutdown	2 years ago
Rahim Kanji	c8ce94c85b	Merge remote-tracking branch 'Master_POSTGRES/v2.x_postgres' into v2.x_postgres_backend	2 years ago
Miro Stauder	b7258e965f	use local includes - openssl	2 years ago
Rahim Kanji	65fc633cf5	Generic error handling, transaction detection and handling, bug fixes * Implemented generic error handling to cover all the scenarios. * Extraction of results from PGconn in case of connection errors. Introduced a patch to facilitate this. * Added transaction handling. * Ready packet now includes transaction status. * Split command completion and ready packet to increase flexibility. * Resolved multiple bugs to enhance stability.	2 years ago
Rahim Kanji	ef61c367a3	Added support for handling commands and errors * Renamed PgSQL_ResultSet to PgSQL_Query_Result to better represent its role in processing various result types, including command results, result sets, and errors. * Renamed PGUser to PGCredentials. * Added support for handling queries that produce commands and improved error handling. * Enhanced buffer functionality in PgSQL_Query_Result.	2 years ago
Rahim Kanji	a2516654cf	Added PgSQL Thread variables. Using a few MySQL thread variables, particularly for query digest, query processor, and query cache. In the future, we plan to create a global variable for modules that are common to both MySQL and PGSQL	2 years ago
Rahim Kanji	ebf20b6a60	* Added PostgreSQL configuration (port: 6034 Admin and 6035: PostgreSQL client connections) * Fixed few bugs * Added Load and Save commands for PostgreSQL tables	2 years ago
Rahim Kanji	e029d39007	Initial PostgreSQL commit * Added plain text and SCRAM authentication	2 years ago

36 Commits (fa74de3cf257dfd7c14c17403928d8b785c43df6)