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@JavierJF JavierJF released this 15 Sep 08:07
v2.3.0
8e9f126

v2.3.0 Release notes

Release date: 2021-09-15

This is a major release for ProxySQL 2.x series containing several important features, fixes and enhancements.

New features and enhancements

  • Added support for reloading TLS files at runtime, allowing ProxySQL to change its cert/key files used for client connections. This also introduces the command PROXYSQL TLS RELOAD: #3552.
  • Enhanced support for SPIFFE authentication: #3552.
  • For client connections using TLS, added support for private keys others than RSA, for example EC keys: #3552.
  • Added support for certificate revocation list (CRL) and multiple certificate authorities (CA) #3577.
  • Added new feature ("Client Error Limit") that automatically blocks clients if they repeatedly fails to connect to ProxySQL #3617.
  • Several improvements for group replication monitoring and replication lag actions: #3533
    • Servers which lag is above mysql-monitor_groupreplication_max_transactions_behind_count are now SHUNNED instead of being moved to offline hostgroup . Introduced also a new variable mysql-monitor_groupreplication_max_transaction_behind_for_read_only that determines if the servers are shunned only if in the reader hostgroup or also in the writer hostgroup
    • Servers can now be set for maintenance via OFFLINE_SOFT state.
    • When servers are shunned due to replication lag, SHUNNED status is executed in two stages in order to allow a grace time before terminating all the connections
  • Added per-user default transaction isolation level: #3466
  • Several improvements related to Aurora: #3515
    • Handle replicas where REPLICA_LAG_IN_MILLISECONDS == 0
    • Ignore decommissioned or renamed nodes, see #3484.
    • During a failover, the former writer (still reporting MASTER_SESSION_ID) is not considered a writer if it is not the last updated.
    • Increases the amount of entries per server stored in mysql_server_aws_aurora_log from 50 to 150 snapshots.
  • LDAP authenticating has been reworked for future enhancements: #3491

Minor

  • Improved verbosity for connections issues: #3467
  • Added commands PROXYSQL GCOV DUMP and PROXYSQL GCOV RESET for improving coverage support: #3486
  • Updated libcurl version addressing security concerns: #3518.
  • Added new boolean variable mysql-enable_load_data_local_infile to allow or block the executing of command LOAD DATA LOCAL INFILE. Please note that behavior of LOAD DATA LOCAL INFILE hasn't changed, when executed LOAD DATA LOCAL INFILE still refers to a file in ProxySQL instance, NOT on client side: #3526

Bug Fixes

Major

  • Fixed crashes due to asserts when under specific timing conditions, a backend connection is being reset after it failed to execute a ping : #3502
  • Adding support for error message at the end of a binary protocol resultset. #3548
  • Fixed memory leak affecting SSL initialization for frontend connections #3620.

Minor

  • Fixed crashes when adding invalid hostname to mysql_servers table: #3431.
  • Fixed infinite loop when address specified by sqliteserver-mysql_ifaces isn't available: #3524
  • Fixed memory leak affecting failing connections due to invalid credentials #3620.

SHA256s:

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