188 Commits (ee74384c79cd64fb714c1b609f2e14d2a49bf85e)

Author	SHA1	Message	Date
Rene Cannao	b5598d8d53	Add comprehensive ProxySQL_Poll usage documentation throughout codebase ... Enhance ProxySQL_Poll class documentation with detailed usage patterns: - lib/ProxySQL_Poll.cpp: Enhanced file-level documentation with architecture overview, template specialization, memory management, and event processing pipeline explanations - lib/MySQL_Thread.cpp: Added usage documentation for listener registration, removal patterns, client session setup, and main poll loop - lib/PgSQL_Thread.cpp: Added equivalent PostgreSQL usage documentation mirroring MySQL patterns with protocol-specific details - lib/mysql_data_stream.cpp: Documented cleanup, receive activity tracking, and send activity tracking patterns - lib/PgSQL_Data_Stream.cpp: Documented equivalent PostgreSQL data stream patterns for cleanup and activity tracking All documentation is placed directly where code is used, avoiding specific line numbers for better maintainability. Includes comprehensive explanations of when, why, and how ProxySQL_Poll methods are used throughout ProxySQL's event-driven architecture. [skip-ci]	1 month ago
Javier Jaramago Fernández	6fea828e86	Improve logging in unexpected COM_PING packet handling ... Logging messages now include 'client address', 'session status' and 'data stream status'. Client address is also logged when OK packets are dispatched, this should help tracking if a client has received the expected packets or not.	2 months ago
Javier Jaramago Fernández	d0e88599ee	Add special handling for unexpected COM_PING packets ... Implements a workaround for the handling of unexpected 'COM_PING' packets received during query processing, while a resultset is yet being streamed to the client. Received 'COM_PING' packets are queued in the form of a counter. This counter is later used to sent the corresponding number of 'OK' packets to the client after 'MySQL_Session' has finished processing the current query.	2 months ago
Rene Cannao	ec1247f2a9	Add Doxygen docs for MySQL_Data_Stream::check_data_flow()	2 months ago
Rene Cannao	4044a40794	Skip bidirectional data check for permanent fast-forward sessions ... Allow permanent fast-forward sessions (SESSION_FORWARD_TYPE_PERMANENT) to continue processing when bidirectional data flow is detected, instead of treating it as a fatal error. This prevents unnecessary session termination in these specific cases while maintaining the original strict validation for all other session types.	2 months ago
Rene Cannao	ee824c0b97	Removing debugging code	3 months ago
Rene Cannao	3329a671e5	Add extensive documentation for fast forward grace close feature	3 months ago
Rene Cannao	ae93966603	Add TAP test for fast forward grace close feature ... - Rename and modify test to use MySQL C API mysql_binlog_* functions - Implement throttled binlog reading with 5 iterations (no limit, 2s, 5s, 20s, 60s targets) - Add diagnostics for debugging binlog fetch issues - Set RPL options for file, position, server_id, and non-blocking flag - Update Makefile to compile with MySQL client library	3 months ago
Rene Cannao	44aa606caa	Implement fast forward grace close feature to prevent data loss ... Problem: In fast forward mode, ProxySQL forwards packets directly from client to backend without buffering them. If the backend connection closes unexpectedly (e.g., due to server crash, network failure, or other issues), ProxySQL immediately closes the client session. This can result in data loss because the client may have sent additional data that hasn't been fully transmitted yet, as ProxySQL does not wait for the output buffers to drain. Solution: Implement a configurable grace period for session closure in fast forward mode. When the backend closes unexpectedly, instead of closing the session immediately, ProxySQL waits for a configurable timeout (fast_forward_grace_close_ms, default 5000ms) to allow any pending client output data to be sent. During this grace period: - If the client output buffers become empty, the session closes gracefully. - If the timeout expires, the session closes anyway to prevent indefinite hanging. Changes: - Added global variable mysql_thread___fast_forward_grace_close_ms (0-3600000ms) - Added session flags: backend_closed_in_fast_forward, fast_forward_grace_start_time - Added data stream flag: defer_close_due_to_fast_forward - Modified MySQL_Data_Stream::read_from_net() to detect backend EOF and initiate grace close if client buffers are not empty - Modified MySQL_Session::handler() FAST_FORWARD case to implement grace close logic with timeout and buffer checks - Added extensive inline documentation explaining the feature and its mechanics This prevents data loss in fast forward scenarios while maintaining bounded session lifetime.	3 months ago
Yashwant Sahu	392d3bfffc	Using mysql_thread___protocol_compression_level in all the places	1 year ago
Yashwant Sahu	7c3a8327e0	1. Using now mysql_thread___protocol_compression_level ... 2. Changed performance diff to float in tap test	1 year ago
Yashwant Sahu	2f3b2dacae	Merge branch 'v3.0' into v3.0_compression	1 year ago
Rahim Kanji	794ec0f48d	Merge remote-tracking branch 'Master/v3.0' into v3.0_dynamic_fast_forward	1 year ago
Yashwant Sahu	a0db6c3a1f	1. Changed name to protocol_compression_level. ... 2. Added TAP test	1 year ago
Yashwant Sahu	a846447a22	Added MySQL compression level	1 year ago
Rahim Kanji	967386d7d3	Added the SESSION_FORWARD_TYPE enum to define the type of session forwarding	1 year ago
Yashwant Sahu	a0ce79b2ee	Removed usage of bio structure from debug message.	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
René Cannaò	cbf4628ea3	Merge remote-tracking branch 'proxysql27/v2.7' into v2.x_postgres_merge27_20240917	1 year ago
René Cannaò	38350292e2	Merge pull request #4600 from sysown/v2.x_proxy ... Implementation of PROXY protocol V1	1 year ago
René Cannaò	7723563317	Adding warning in case PROXY header is not accepted	2 years ago
Rene Cannao	7fe013fac2	Merge branch 'proxysql_v2.x_240813' into v2.x_postgres_merge_v2.x_240813 ... This merges ProxySQL v2.x up to 2024-08-13	2 years ago
Rene Cannao	d85430b709	Implementation of PROXY protocol V1 ... This commit introduces: - class ProxyProtocolInfo() , that: - performs parsing - validates subnet - run automated tests in DEBUG build - variable mysql-proxy_protocol_networks . Accepted values: - empty string: disables PROXY protocol - '*' : allows connections from any IP - comma separated list of subnets - automated testing in DEBUG build during start - export of PROXY protocol information in internal session, using PROXY_V1 - a TAP test to verify various connections	2 years ago
Javier Jaramago Fernández	d424e4f8a9	Replace commented 'proxy_info' with 'proxy_debug' in 'read_from_net'	2 years ago
Javier Jaramago Fernández	a0b947250f	Remove old commented code from 'read_from_net'	2 years ago
Javier Jaramago Fernández	ccfca5a3f9	Fix busy-wait on client SSL connection ... Errors and EOF returned by 'recv' are now properly handled, isolated from the return value ('r') from the later and conditional 'SSL_read'. Previously, a busy loop was possible in the following scenario: 1. A client connection was closed, leading to a return of 0 by 'recv', and 'errno' to be set with 'EAGAIN'. 2. Error handling is performed taking into account a never performed call to 'SSL_read' (as if this '0' was a result for this call). 3. The call to 'SSL_get_error' returns with 'SSL_ERROR_SYSCALL', as a result of using this invalid param of '0' (which for 'SSL_read' would mean non-retryable error), and the non-reset 'errno' would still be 'EAGAIN'. 4. This would create the illusion of an interrupted read. So a new read is tried again, while in reality the socket is closed. This busy loop will continue until 'POLLHUP' is received when we attempt to write back to the client and a 'RST' is received as a response.	2 years ago
Rene Cannao	03f0b58e1e	Check POLLHUP if unable to read anything from network ... This solves a possible infinite loop that arises after commit e81895e . Commit e81895e prevents closing connections in case of temporary failures, but on the other side it doesn't allow to close faulty connections.	2 years ago
René Cannaò	9c3c6ca5a3	Check POLLHUP if unable to read anything from network ... This solves a possible infinite loop that arises after commit e81895e . Commit e81895e prevents closing connections in case of temporary failures, but on the other side it doesn't allow to close faulty connections.	2 years ago
René Cannaò	e81895ed16	Improve stability in SSL connection getting SSL_ERROR_SYSCALL ... In case SSL connections get SSL_ERROR_SYSCALL , ERR_get_error() is called to verify if it is possible to perform again a call.	2 years ago
Rene Cannao	771fdfd9d8	Improve stability in SSL connection getting SSL_ERROR_SYSCALL ... In case SSL connections get SSL_ERROR_SYSCALL , ERR_get_error() is called to verify if it is possible to perform again a call.	2 years ago
René Cannaò	53da0426de	Merge pull request #32 from sysown/v3.0.0-update_to_openssl_3.3.1 ... V3.0.0 update OpenSSL to v3.3.1	2 years ago
Rahim Kanji	d3e9c9c85a	Merge remote-tracking branch 'remotes/Master/v2.x' into v2.x_proxysql_postgres_merge	2 years ago
Miro Stauder	b7258e965f	use local includes - openssl	2 years ago
Miro Stauder	e7c336e12f	update OpenSSL to v 3.3.1	2 years ago
Miro Stauder	22688659c2	update OpenSSL to v3.3.1	2 years ago
Javier Jaramago Fernández	7ec6e143d6	Merge pull request #4555 from joshuahunt/johunt/clear-ssl-error-queue-on-shutdown ... Clear SSL error queue on shutdown	2 years ago
Miro Stauder	7695c42534	use local include - openssl	2 years ago
Josh Hunt	2e4ef165fb	Clear SSL error queue on shutdown ... SSL_shutdown can return an error and if it is not cleared it will be left on the thread's error queue since they are thread local causing unrelated connections running on the same thread to be incorrectly terminated. Clear the error queue now if SSL_shutdown returns an error to keep us from impacting other connections.	2 years ago
René Cannaò	fde8ace076	Removed json.hpp from include files ... This seems to speedup compile time, and also lead to smaller binary	2 years ago
René Cannaò	de345ecaed	Merge remote-tracking branch 'public/v2.x' into v2.x_postgres_240422	2 years ago
René Cannaò	678c470b3e	Fix out after refactoring generate_proxysql_internal_session_json()	2 years ago
René Cannaò	73f8ad0a35	Code split related to generate_proxysql_internal_session_json	2 years ago
Rahim Kanji	936e27139b	Merge branch 'v2.x_PostgreSQL_Merge' into v2.x_postgres ... # Conflicts: # include/MySQL_Session.h # lib/Makefile # lib/MySQL_Session.cpp # lib/MySQL_Thread.cpp # lib/ProxySQL_Admin.cpp # lib/ProxySQL_Poll.cpp	2 years ago
Javier Jaramago Fernández	a11b8f7234	Fix invalid free for 'caching_sha2_password' and 'CLIENT_COMPRESS' ... During 'caching_sha2_password' and invalid free could take place if the connection was requested with compression. Compression was wrongly enabled in the connection before all the packets finalizing the auth process were send back to the client.	2 years ago
Rahim Kanji	e029d39007	Initial PostgreSQL commit ... * Added plain text and SCRAM authentication	2 years ago
Javier Jaramago Fernández	caed360eeb	Merge branch 'v2.x' of github.com:sysown/proxysql into v2.x_sha2pass_draft3	2 years ago
Javier Jaramago Fernández	ab8af07c19	Add 'switching_auth_sent' to 'PROXYSQL INTERNAL SESSION' ... Improved observability for auth switch performed during authentication. The new field 'switching_auth_sent' is only updated when an actual auth switch requested to the client.	2 years ago
Miro Stauder	0971a48f9d	update OpenSSL from v3.1.4 to v3.2.1	2 years ago
René Cannaò	3c2418246c	Merge branch 'v2.x' into v2.x_sha2pass_draft3	2 years ago
Javier Jaramago Fernández	bb0f2da42c	Fix Valgrind reported 'realloc' of zero length	2 years ago