Percona Toolkit 2.2.12 发布了， Percona Toolkit 是一组高级的命令行工具，用来管理 MySQL 和系统任务。

改进内容包括：

New Features:

• pt-stalk now gathers dmesg output from up to 60 seconds before the triggering event.

Bugs Fixed:

• Fixed bug 1376561 : pt-archiver was not able to archive all the rows when a table had a hash partition. Fixed by implementing support for tables which have primary or unique indexes.

• Fixed bug 1217466 : pt-table-checksum would refuses to run on Percona XtraDB Cluster if server_id was the same on all nodes. Fixed by using the wsrep_node_incoming_address as a unique identifier for cluster nodes, instead of relying on server_id .

• Fixed bug 1269695 : pt-online-schema-change documentation now contains more information about limitations on why it isn’t running ALTER TABLE for a table which has only a non-unique index.

• Fixed bug 1328686 : Running pt-hearbeat with --check-read-only option would cause an error when running on server with read_only option. Tool now waits for server read_only status to be disabled before starting to run.

• Fixed bug 1373937 : pt-table-checksum now supports none as valid --recursion-method when using with Percona XtraDB Cluster .

• Fixed bug 1377888 : Documentation was stating that pt-query-digest is able to parse a raw binary log file, while it can only parse a file which was decoded with mysqlbinlog tool before. Fixed by improving the documentation and adding a check for binary file and providing a relevant error message.

详情请看 release notes 和  2.2.12 milestone at Launchpad .

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