Percona Server 5.7.15-9 is now available

Percona announces the GA release of Percona Server 5.7.15-9 on October 21, 2016. Download the latest version from the Percona web site or the Percona Software Repositories.

Based on MySQL 5.7.15, including all the bug fixes in it, Percona Server 5.7.15-9 is the current GA release in the Percona Server 5.7 series. Percona’s provides completely open-source and free software. Find release details in the 5.7.15-9 milestone at Launchpad.

New Features

• A new TokuDB tokudb_dir_per_db option was introduced to address two TokuDB shortcomings, the renaming of data files on table/index rename, and the ability to group data files together within a directory that represents a single database. This feature is enabled by default.

Bugs Fixed

• Audit Log Plugin malformed record could be written after audit_log_flush was set to ON in ASYNC and PERFORMANCE modes. Bug fixed #1613650.
• Running SELECT DISTINCT x...ORDER BY y LIMIT N,N could lead to a server crash. Bug fixed #1617586.
• Workloads with statements that take non-transactional locks (LOCK TABLES, global read lock, and similar) could have caused deadlocks when running under Thread Pool with high priority queue enabled and thread_pool_high_prio_mode set to transactions. Fixed by placing such statements into the high priority queue even with the above thread_pool_high_prio_mode setting. Bugs fixed #1619559 and #1374930.
• Fixed memory leaks in Audit Log Plugin. Bug fixed #1620152 (upstream #71759).
• Server could crash due to a glibc bug in handling short-lived detached threads. Bug fixed #1621012 (upstream #82886).
• QUERY_RESPONSE_TIME_READ and QUERY_RESPONSE_TIME_WRITE were returning QUERY_RESPONSE_TIME table data if accessed through a name that is not full uppercase. Bug fixed #1552428.
• Cipher ECDHE-RSA-AES128-GCM-SHA256 was listed in the list of supported ciphers but it wasn’t supported. Bug fixed #1622034 (upstream #82935).
• Successful recovery of a torn page from the doublewrite buffer was showed as a warning in the error log. Bug fixed #1622985.
• LRU manager threads could run too long on a server shutdown, causing a server crash. Bug fixed #1626069.
• tokudb_default was not recognized by Percona Server as a valid row format. Bug fixed #1626206.
• InnoDB ANALYZE TABLE didn’t remove its table from the background statistics processing queue. Bug fixed #1626441 (upstream #71761).
• Upstream merge for #81657 to 5.6 was incorrect. Bug fixed #1626936 (upstream #83124).
• Fixed multi-threaded slave thread leaks that happened in case of thread create failure. Bug fixed #1619622 (upstream #82980).
• Shutdown waiting for a purge to complete was undiagnosed for the first minute. Bug fixed #1616785.

Other bugs fixed: #1614439, #1614949, #1624993 (#736), #1613647, #1615468, #1617828, #1617833, #1626002 (upstream #83073), #904714, #1610102, #1610110, #1613728, #1614885, #1615959, #1616333, #1616404, #1616768, #1617150, #1617216, #1617267, #1618478, #1618819, #1619547, #1619572, #1620583, #1622449, #1623011, #1624992 (#1014), #735, #1626500, #1628913, #952920, and #964.

NOTE: If you haven’t already, make sure to add the new Debian/Ubuntu repository signing key.

The release notes for Percona Server 5.7.15-9 are available in the online documentation. Please report any bugs on the launchpad bug tracker .