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Percona Server 5.6.35-81.0

Percona is glad to announce the release of Percona Server 5.6.35-81.0 on March 24th, 2017 (Downloads are available here and from the Percona Software Repositories).

Based on MySQL 5.6.35, including all the bug fixes in it, Percona Server 5.6.35-80.1 is the current GA release in the Percona Server 5.6 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.6.35-81.0 milestone at Launchpad.

New Features

Percona Server has implemented new mysqldump --order-by-primary-desc option. This feature tells mysqldump to take the backup by descending primary key order (PRIMARY KEY DESC) which can be useful if storage engine is using reverse order column for a primary key.

Bugs Fixed

When innodb_ft_result_cache_limit was exceeded by internal memory allocated by InnoDB during the FT scan not all memory was released which could lead to server assertion. Bug fixed #1634932 (upstream #83648).

Log tracking initialization did not find last valid bitmap data correctly, potentially resulting in needless redo log retracking or hole in the tracked LSN range. Bug fixed #1658055.

If Audit Log Plugin was unable to create file pointed by audit_log_file, server would crash during the startup. Bug fixed #1666496.

A DROP TEMPORARY TABLE ... for a table created by a CREATE TEMPORARY TABLE ... SELECT ... would get logged in the binary log on a disconnect with mixed mode replication. Bug fixed #1671013.

TokuDB did not use index with even if cardinality was good. Bug fixed #1671152.

Row-based replication events were not reflected in Rows_updated fields in the User Statistics INFORMATION_SCHEMA tables. Bug fixed #995624.

A long-running binary log commit would block SHOW STATUS, which in turn could block a number of of other operations such as client connects and disconnects. Bug fixed #1646100.

It was impossible to use column compression dictionaries with partitioned InnoDB tables. Bug fixed #1653104.

Diagnostics for OpenSSL errors have been improved. Bug fixed #1660339 (upstream #75311).

When DuplicateWeedout strategy was used for joins, use was not reported in the query plan info output extension for the slow query log. Bug fixed #1592694.

Other bugs fixed: #1650321, #1650322, #1654501, #1663251, #1666213, #1652912, #1659548, #1663452, #1670834, #1672871, #1626545, #1644174, #1658006, #1658021, #1659218, #1659746, #1660239, #1660243, #1660255, #1660348, #1662163 upstream (#81467), #1664219, #1664473, #1671076, and #1671123.

This documentation is developed in Launchpad as part of the Percona Server 5.6.
If you spotted inaccuracies, errors, don't understood it or you think something is missing or should be improved, please file a bug.
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