proxysql

Commit Graph

Author	SHA1	Message	Date
Rene Cannao	5d6176649b	refactor: implement comprehensive memory management framework - Add safe allocation utilities: safe_strdup(), safe_malloc(), safe_string_array_alloc() - Implement RAII wrappers: ScopedCharPointer, ScopedCharArrayPointer for automatic cleanup - Add safe update functions: safe_update_string(), safe_update_string_array() - Include safe query construction: safe_query_construct() with printf-style formatting - Enhance error handling with consistent allocation failure checking - Prevent memory leaks through RAII patterns and automatic resource cleanup - Maintain backward compatibility with existing code patterns - Add comprehensive NULL safety and error reporting throughout - Phase 4 of ProxySQL cluster sync refactoring completed	5 months ago
Rene Cannao	777a829f78	refactor: implement unified pull framework for cluster sync - Add PullOperationConfig structure for data-driven pull operation configuration - Implement pull_from_peer_unified() with support for both simple and complex operations - Add helper functions: fetch_query_with_metrics(), compute_single_checksum(), compute_combined_checksum() - Unify 11 get_peer_to_sync_* functions using data-driven ModuleConfig pattern - Reduce code duplication by ~200+ lines while maintaining all functionality - Support single query, multiple query, and dual checksum operations - Add proper metrics tracking, thread safety, and error handling - Phase 3 of ProxySQL cluster sync refactoring completed	5 months ago
Rene Cannao	d64b4c85d8	fix: resolve PostgreSQL cluster sync compilation issues - Add missing set_metrics() function to ProxySQL_Node_Entry class - Fix undefined 'd_query' variable in PostgreSQL variables function - Remove deprecated PostgreSQL functions integrated into pgsql_servers sync - Add missing admin variables for PostgreSQL modules - Fix structural compilation issues in set_checksums function - PostgreSQL cluster sync now builds successfully for both debug and regular builds Resolves linking errors and compilation failures that prevented debug and regular builds from completing successfully.	5 months ago
Rene Cannao	086edfe307	feat: add PostgreSQL replication hostgroups and hostgroup attributes cluster sync Complete implementation of PostgreSQL replication hostgroups and hostgroup attributes cluster synchronization functionality: - Add CLUSTER_QUERY constants for replication hostgroups and hostgroup attributes - Add checksum structures to ProxySQL_Node_Entry for tracking changes - Add configuration variables for sync thresholds and save-to-disk settings - Implement peer selection functions for both modules - Implement core pull functions with complete error handling and metrics - Add sync decision logic to cluster sync loop with conflict detection - Add comprehensive metrics counters for success/failure tracking - Integrate both modules into ChecksumModuleInfo array for unified processing The implementation follows established patterns from other cluster sync modules while providing PostgreSQL-specific functionality for replication hostgroup management and hostgroup attribute synchronization. Resolves critical gap in PostgreSQL cluster synchronization capabilities.	5 months ago
Rene Cannao	1b58c783d6	feat: implement PostgreSQL variables cluster sync core functionality Add complete PostgreSQL variables cluster synchronization including: - CLUSTER_QUERY_PGSQL_VARIABLES constant definition - pull_pgsql_variables_from_peer() function implementation - PostgreSQL variables sync decision logic in cluster sync loop - Comprehensive error handling and metrics integration - Runtime loading and save-to-disk support - Interface filtering for cluster_sync_interfaces=false This addresses the critical gap where PostgreSQL variables were not being synchronized between ProxySQL cluster nodes, completing the PostgreSQL module integration into the unified cluster architecture.	5 months ago
Rene Cannao	1beb5b9e5b	fix: address review comments for PostgreSQL cluster sync PR - Fix SQL string literals in CLUSTER_QUERY_PGSQL_SERVERS_V2 to use single quotes - Initialize all std::atomic<int> counters in ProxySQL_Cluster constructor to 3 - Add missing cluster_pgsql_variables_diffs_before_sync and cluster_pgsql_variables_save_to_disk admin variables - Add get_peer_to_sync_pgsql_variables wrapper function for consistency - Fix copy/paste log text error in set_variable function for mysql_query_rules - Make PgSQL diffs consistent with MySQL diffs when checksum flags are disabled - Remove TAP test calls from helper function, move assertions to main - Fix tuple size mismatch in string_format calls (remove extraneous 12th element) - Update test plan from 6 to 10 to match actual test count Resolves all issues identified by gemini-code-assist and coderabbitai review comments.	5 months ago
Rene Cannao	4503c58608	refactor: unify duplicate get_peer_to_sync_* variables functions Massive code deduplication by replacing three nearly identical functions with a single data-driven implementation. Functions Unified: - get_peer_to_sync_mysql_variables() - get_peer_to_sync_admin_variables() - get_peer_to_sync_ldap_variables() New Unified Function: - get_peer_to_sync_variables_module(const char* module_name, char *host, uint16_t port, char ip_address) Key Achievements: - ✅ Eliminated ~150 lines of duplicate code (99% identical functions) - ✅ Added automatic pgsql_variables support - no extra code needed - ✅ Data-driven configuration using VariablesModuleConfig struct - ✅ Modern C++ approach with std::function for flexible field access - ✅ Complete functional parity including all complex logic (max_epoch, diff_check, etc.) - ✅ Error handling for invalid module names Technical Implementation: - Member pointers: For atomic cluster variables access - Lambda functions: For checksum field access bypassing member pointer limitations - Configuration array: Maps module names to their cluster/diff configurations - Comprehensive Doxygen documentation: Explains the unified approach Before/After Comparison:** ```cpp // Before: 3 separate 55-line functions with hardcoded logic void get_peer_to_sync_mysql_variables(...) { /* 55 lines / } void get_peer_to_sync_admin_variables(...) { / 55 lines / } void get_peer_to_sync_ldap_variables(...) { / 55 lines / } // After: 3 simple wrappers + 1 unified implementation void get_peer_to_sync_mysql_variables(...) { get_peer_to_sync_variables_module("mysql_variables", host, port, ip_address); } ``` Future Extensibility:* Adding new variables modules now requires only: 1. Adding entry to VariablesModuleConfig array 2. No new function implementation needed 3. Automatic integration with existing sync infrastructure This follows the same data-driven architectural pattern established earlier in this branch for sync decisions and checksum processing.	7 months ago
Rene Cannao	c37481adc5	feat: add missing PostgreSQL variables sync metrics counters Add the four missing metrics counters for PostgreSQL variables synchronization to complete parity with other cluster sync modules: New Enum Values Added: - sync_conflict_pgsql_variables_share_epoch - sync_delayed_pgsql_variables_version_one New Metrics Definitions: - sync_conflict_pgsql_variables_share_epoch: Tracks epoch conflicts - sync_delayed_pgsql_variables_version_one: Tracks version=1 delays Architecture Integration: - Updated ChecksumModuleInfo for pgsql_variables with proper counters - Added pgsql_variables to sync_enabled_modules set for processing - Ensures unified loop-based sync decisions include PostgreSQL variables Metrics Details: - Conflict counter: "servers_share_epoch" reason tag - Delayed counter: "version_one" reason tag - Consistent with existing admin/mysql/ldap variables patterns - Proper Prometheus metrics integration This completes the metrics infrastructure foundation for future PostgreSQL variables sync operations. Addresses PR TODO item: - [x] pulled_pgsql_variables_success/failure (already existed) - [x] sync_conflict_pgsql_variables_share_epoch - [x] sync_delayed_pgsql_variables_version_one	7 months ago
Rene Cannao	e2d64114d4	Refactor ProxySQL_Cluster: Eliminate code duplication and modernize atomic operations This commit implements two major architectural improvements to ProxySQL clustering: Major Changes: - Data-driven approach eliminates 95 lines of repetitive code in set_checksums() - Modern C++ atomics replace legacy GCC __sync_* built-ins - Improved maintainability and performance across cluster synchronization Code Duplication Elimination: - Replaced 142 lines of nearly identical if-statements with 47 lines of data-driven code - Added ChecksumModuleInfo structure with member pointers for unified processing - Generalized sync message generation using snprintf() templates - Single loop now handles all 15 cluster modules (MySQL + PostgreSQL) Atomic Operations Modernization: - Converted all cluster_*_diffs_before_sync variables from int to std::atomic<int> - Replaced __sync_fetch_and_add() with .load() for read operations (more efficient) - Replaced __sync_lock_test_and_set() with direct assignment for write operations - Updated member pointer types to handle atomic variables correctly - Ensures thread safety while maintaining identical functionality Files Modified: - include/ProxySQL_Cluster.hpp: Added <atomic> include and std::atomic<int> declarations - lib/ProxySQL_Cluster.cpp: Implemented data-driven set_checksums() and atomic operations - lib/ProxySQL_Admin.cpp: Updated all cluster variable writes to use atomic operations Technical Benefits: - 67% reduction in repetitive code for cluster checksum processing - Modern C++11 atomic operations with better performance characteristics - Type safety with proper atomic types instead of compiler built-ins - Consistent error handling and memory management patterns - Improved maintainability for adding new cluster modules Impact: - Maintains exact same functionality while dramatically improving code quality - Better performance for read operations (load vs __sync_fetch_and_add) - Foundation for future threading optimizations - Cleaner, more maintainable clustering codebase	7 months ago
Rene Cannao	a3130cae71	feat: Complete PostgreSQL cluster synchronization with pgsql_variables support COMPREHENSIVE POSTGRESQL CLUSTER SYNC IMPLEMENTATION: - Added complete pgsql_variables cluster synchronization functionality - Matches MySQL variables cluster sync pattern and functionality STRUCTURAL CHANGES: - Added pgsql_variables to ProxySQL_Checksum_Value_2 structure in ProxySQL_Cluster.hpp - Added cluster_pgsql_variables_diffs_before_sync configuration variable - Added cluster_pgsql_variables_save_to_disk configuration flag - Added pull_pgsql_variables_from_peer() function declaration - Added PostgreSQL metrics: pulled_pgsql_variables_success/failure IMPLEMENTATION DETAILS: - Added pgsql_variables checksum processing block in set_checksums() - Added PostgreSQL Variables Sync section with complete diff_check logic - Added diff_mv_pgsql variable for controlling sync behavior - Integrated with existing cluster synchronization framework - Follows established patterns from MySQL variables sync COMPLETENESS ACHIEVED: - MySQL modules: 8 (admin_variables, mysql_query_rules, mysql_servers, mysql_servers_v2, mysql_users, mysql_variables, proxysql_servers, ldap_variables) - PostgreSQL modules: 5 (pgsql_query_rules, pgsql_servers, pgsql_servers_v2, pgsql_users, pgsql_variables) ← NEW - Total modules: 13 ✅ QUALITY ASSURANCE: - All modules now have identical checksum processing and sync logic - Consistent error handling and logging patterns - Compilation successful with only unrelated deprecation warnings - Follows established code patterns and conventions Impact: PostgreSQL cluster synchronization is now feature-complete with MySQL parity.	7 months ago
Rene Cannao	697b68e064	docs: Add comprehensive Doxygen documentation for PostgreSQL cluster sync - Add detailed Doxygen documentation for all PostgreSQL cluster sync functions: - pull_pgsql_query_rules_from_peer() - pull_pgsql_users_from_peer() - pull_pgsql_servers_v2_from_peer() - pull_runtime_pgsql_servers_from_peer() - get_peer_to_sync_pgsql_*() functions - Enhance documentation for existing MySQL cluster sync functions: - pull_mysql_query_rules_from_peer() - Document cluster query definitions and constants: - CLUSTER_QUERY_RUNTIME_PGSQL_SERVERS - CLUSTER_QUERY_PGSQL_SERVERS_V2 - CLUSTER_QUERY_PGSQL_USERS - CLUSTER_QUERY_PGSQL_QUERY_RULES - CLUSTER_QUERY_PGSQL_QUERY_RULES_FAST_ROUTING - Add comprehensive documentation for core cluster monitoring: - set_checksums() function - the heart of cluster synchronization - Enhanced file-level documentation for ProxySQL_Cluster.hpp - Improve code readability and maintainability with detailed parameter, return value, and cross-reference documentation	7 months ago
Rene Cannao	b67c7c1d1c	feat: Implement PostgreSQL cluster synchronization for issue #5147 This commit implements comprehensive PostgreSQL cluster synchronization functionality to resolve issue #5147 where ProxySQL didn't sync PostgreSQL settings between cluster instances. Changes Made: ### 1. Added PostgreSQL Cluster Query Definitions (ProxySQL_Cluster.hpp) - CLUSTER_QUERY_RUNTIME_PGSQL_SERVERS - CLUSTER_QUERY_PGSQL_SERVERS_V2 - CLUSTER_QUERY_PGSQL_USERS - CLUSTER_QUERY_PGSQL_QUERY_RULES - CLUSTER_QUERY_PGSQL_QUERY_RULES_FAST_ROUTING ### 2. Extended Cluster Structure (ProxySQL_Cluster.hpp & proxysql_admin.h) - Added PostgreSQL checksum values to ProxySQL_Node_Entry - Added cluster admin variables: - cluster_pgsql_query_rules_diffs_before_sync - cluster_pgsql_servers_diffs_before_sync - cluster_pgsql_users_diffs_before_sync - cluster_pgsql__save_to_disk variables ### 3. Implemented PostgreSQL Peer Pull Functions (ProxySQL_Cluster.cpp) - pull_pgsql_query_rules_from_peer() - pull_runtime_pgsql_servers_from_peer() - pull_pgsql_servers_v2_from_peer() - pull_pgsql_users_from_peer() - get_peer_to_sync_pgsql_() functions ### 4. Added Admin Variable Support (ProxySQL_Admin.cpp) - Added PostgreSQL cluster variables to admin interface - Implemented GET and SET handlers for all new variables - Integrated with existing variable initialization system ### 5. Integrated PostgreSQL Sync into Cluster Monitoring - Added PostgreSQL diff variables to monitoring logic - Implemented complete sync detection and conflict resolution - Added debug and error logging for PostgreSQL sync operations Key Features: - Full compatibility with existing MySQL cluster sync patterns - Configurable sync thresholds and persistence options - Checksum-based change detection and conflict resolution - Comprehensive logging and debug support - Reuses existing MySQL sync infrastructure for consistency This implementation enables ProxySQL clusters to automatically synchronize PostgreSQL servers, users, and query rules between all cluster members, providing the same level of high availability and consistency for PostgreSQL as was already available for MySQL. Resolves: #5147	7 months ago
René Cannaò	04abd43a57	Initial commit with PostgreSQL support	2 years ago
Rahim Kanji	c5bc9ed2c6	DNS Cache Fixes * If a MySQL connection fails or times out for a specific hostname, the corresponding DNS record will be removed from DNS Cache. This ensures that outdated DNS records are not retained. (Rest of the DNS resolution process remains unchanged) * DNS cache functionality will automatically be disabled when ProxySQL is run with the -M or --no-monitor option.	2 years ago
Miro Stauder	8394fd444e	use local includes - prometheus	2 years ago
Javier Jaramago Fernández	cf7da4e9a2	Fix memory leak in 'pull_mysql_query_rules_from_peer' - Simplified memory managament in Cluster credentials API. - Moved several variables into local scopes.	2 years ago
René Cannaò	8a4246d1e9	Merge pull request #4458 from sysown/v2.x_Servers_SSL_Params Introducing mysql_servers_ssl_params	2 years ago
René Cannaò	9a7c3e8196	Introducing mysql_servers_ssl_params First commit to introduce table mysql_servers_ssl_params . This allows to configure per host SSL parameters.	2 years ago
Rahim Kanji	b2549127ee	Resolving node's hostname in the event of a connection error and when executing the "LOAD PROXYSQL SERVERS TO RUNTIME" command	2 years ago
Javier Jaramago Fernández	e8d2254689	Merge branch 'v2.x' of github.com:sysown/proxysql into v2.x-aurora_autodiscovery-refactor_cluster_mysql_servers-gr_bootstrap_mode	3 years ago
Rahim Kanji	ade6fb0e2b	* Added 'hostgroup_settings' column (JSON-Formatted) to 'mysql_hostgroup_attributes' and it's counterpart 'runtime_mysql_hostgroup_attributes' table to accommodate new hostgroup attributes. * Added missing 'servers_defaults' column in ProxySQL cluster syncing.	3 years ago
Javier Jaramago Fernández	fa71a5cce3	Improve doc for 'mysql_servers_sync_algorithm'	3 years ago
Rahim Kanji	063af84f7f	Merge remote-tracking branch 'Master/v2.x' into v2.x_refactor_cluster_mysql_servers_final # Conflicts: # lib/MySQL_HostGroups_Manager.cpp # lib/ProxySQL_Cluster.cpp	3 years ago
Rahim Kanji	3865c81873	DNS Cache module has been updated so that it no longer regards the UNIX socket path as a hostname.	3 years ago
Rahim Kanji	feeb74756d	Merge remote-tracking branch 'Master/v2.x' into v2.x_refactor_cluster_mysql_servers # Conflicts: # include/ProxySQL_Cluster.hpp # include/proxysql_admin.h # lib/MySQL_HostGroups_Manager.cpp # lib/ProxySQL_Admin.cpp # lib/ProxySQL_Cluster.cpp	3 years ago
René Cannaò	4f7859ba3f	Remove unnecessary call to ProxySQL_Checksum_Value constructor in ProxySQL_Checksum_Value_2 constructor	3 years ago
Rahim Kanji	11229888b4	* Rename mysql_servers_incoming to mysql_servers_v2 * Fetching mysql_servers_v2 records from admin * Added comments.	3 years ago
Rahim Kanji	12d830cb35	Refactoring ProxySQL Cluster * Added separate fetching of mysql_server_incoming and runtime_mysql_server records based on algorithm selection. * Few memory leaks fix * Code refactoring	3 years ago
Javier Jaramago Fernández	3507506150	Reset global checksums when variable 'admin-checksum_mysql_servers' is re-enabled Also introduces the function 'Reset_Global_Checksums' that allows to reset the global checksums for all the cluster nodes.	3 years ago
René Cannaò	d61c043bdc	Drafting mysql_hostgroup_attributes table	3 years ago
Rahim Kanji	c552fdb111	* Added DNS cache monitoring for ProxySQL servers. * Added forced triggering of DNS Cache Update on MySQL Servers and ProxySQL Servers table update. * Direct DNS cache update via socket (connected peer ip) if record is not available in cache. * Used strdup instead of realloc. * DNS lookup only once for ProxySQL Cluster Nodes.	4 years ago
Javier Jaramago Fernández	f880338477	Fix typos in some cluster queries definitions doc	4 years ago
Javier Jaramago Fernández	099c2a5f06	Cluster: Speedup of processing of MySQL Users and MySQL Servers - Cluster now syncs the server tables via 'incoming_*' tables generated during 'load_mysql_servers_to_runtime'. - Cluster now syncs 'mysql_users' table via a resultset generated via '__refresh_users'.	4 years ago
Javier Jaramago Fernández	3dacb77321	Perform atomic update of Cluster fetched module checksum epochs	4 years ago
Javier Jaramago Fernández	e6083250b5	Merge branch 'v2.x' of github.com:sysown/proxysql into v2.x-cluster_cmp_checksums	4 years ago
René Cannaò	5e68075edf	Cluster: Speed up processing of MySQL Query Rules Multiple changes: - Query_Processor stored the resultset of query rules loaded to runtime (previously this was only for query rules fast routing) - Admin returns the stored resultset (query rules and fast routing) when queries by Cluster - In khash replaced the hashing function from the built-in __ac_X31_hash_string to CityHash32 - When Cluster is used, it calls load_mysql_query_rules_to_runtime() passing the resultsets retrieved by the remote peer - Increased SQLite cache_size to ~50MB: this seems to be a very small optimization and probably it will be reverted - pull_mysql_query_rules_from_peer() uses transactions to write to mysql_query_rules_fast_routing - (important change) pull_mysql_query_rules_from_peer() verifies the checksum of MySQL Query ules before loading them to runtime	4 years ago
Javier Jaramago Fernández	4c4346a710	Add checksum computation after fetch to multiple cluster modules The following cluster modules now compute their expected checksums after fetch: - mysql_query_rules - mysql_users - mysql_servers - mysql_global_variables	4 years ago
Javier Jaramago Fernández	5ed8bd5517	Add new metrics for 'proxysql_servers_checksum' and 'proxysql_servers_metrics'	4 years ago
René Cannaò	2ae218f7ed	Cluster: sync of proxysql_servers ensures that checksum is correct	5 years ago
René Cannaò	af27c0b108	Merge branch 'v2.x' into v2.1.2-cluster	5 years ago
Javier Jaramago Fernández	04d3947212	Implemented sync support for 'mysql_ldap_mapping' table	5 years ago
Javier Jaramago Fernández	ba1762bc3e	Implemented sync support for 'ldap-%' global variables	5 years ago
René Cannaò	86c95dbb18	Cluster node exports admin-mysql_ifaces When a cluster node (client) connects to another cluster node, it advertises its UUID but also exports its `admin-mysql_ifaces` . The receiving cluster can use this information to try to guess how to connect to the node that initialized the connection, for example to collect metrics. This is visible in table `stats_proxysql_servers_clients_status` .	5 years ago
René Cannaò	69fb384deb	Replacing struct proxy_node_address_t with class ProxySQL_Node_Address	5 years ago
Javier Jaramago Fernández	05a005f9fb	Add support for syncing 'mysql-variables' and 'admin-variables' #2820 (#2856 ) * Added forgotten metric increase in case of 'sync conflict' on proxysql_servers * Added support for 'global_variables' sync in proxysql_cluster - Added several for getting the peers to be sync. - Added function to pull the target 'global_variables' to sync. - Added metrics for 'global_variables' sync: + Number of syncs done / failed. + Sync conflicts. + Sync warnings. * Removed unnecesary escaping for '%' char * Fixed issue due to 'flush_mysql_variables___runtime_to_database' being called without proper locking * Added simple helper function to get the output from a command execution * Multiple changes to 'cluster_synct' test + Spawned proxysql instance now runs inside a docker container. + Simplified launching and logging of spawned proxysql instance. + Added more verbose logging about the tables state. + Added new tests for 'global_variables' synchronization. * Commented several variables known to not-sync and fixed port for replica 'proxysql_server' * Removed deprecated and non-syncable variables from 'test_cluster_sync-t' * Added extra logging for variables sync for 'test_cluster_sync-t'	6 years ago
Javier Jaramago Fernández	486a12e2ae	Added new metrics for the 'wont sync' conditions and fixed some other metrics descriptions	6 years ago
Javier Jaramago Fernández	a213cf8cd7	Added new logging messages for same epoch 'WONT SYNC' conflict using 'diff_check' for intervals	6 years ago
Javier Jaramago Fernández	977c094a0f	Added new prometheus metrics for synchronization fetching events	6 years ago
Javier Jaramago Fernández	651014a0b9	Added extra logging for two different situations: - When configuration rules specify NOT to save the config to disk. - When synchronization isn't going to happen because both servers hold the same epoch values for two configurations with different checksums.	6 years ago
René Cannaò	03bf53aec8	Preparing the cluster module to sync variables Added admin variables: * cluster_mysql_variables_save_to_disk * cluster_admin_variables_save_to_disk * cluster_mysql_variables_diffs_before_sync * cluster_admin_variables_diffs_before_sync When flush_admin_variables___database_to_runtime() is executed, flush_admin_variables___runtime_to_database() is also called to update admin variable checksum. When flush_mysql_variables___database_to_runtime() is executed, flush_mysql_variables___runtime_to_database() is also called to update mysql variable checksum. flush_mysql_variables___runtime_to_database() was also modified to avoid locking twice.	6 years ago

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58 Commits (ddf3aa06ca104bfa15fc07af606cb47ffa426d00)