Percona XtraDB Cluster 5.5.41-25.11 發布
Percona XtraDB Cluster是針對MySQL用戶的高可用性和擴展性解決方案,基于Percona Server 。其包括了Write Set REPlication補丁,使用Galera 2.0庫,這是一個針對事務性應用程序的同步多主機復制插件。
Percona Server是MySQL的改進版本,使用 XtraDB 存儲引擎,在功能和性能上較 MySQL 有著很顯著的提升,如提升了在高負載情況下的 InnoDB 的性能,為 DBA 提供了一些非常有用的性能診斷工具,另外有更多的參數和命令來控制服務器行為。
Percona XtraDB Cluster提供了:
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同步復制,事務可以在所有節點上提交。
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多主機復制,你可以寫到任何節點。
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從(slave)服務器上的并行應用事件,真正的“并行復制”。
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自動節點配置。
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數據一致性,不再有未同步的從服務器。
Percona XtraDB Cluster完全兼容MySQL或Percona Server,包括:
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數據兼容。Percona XtraDB Cluster可在由MySQL或Percona Server創建的數據庫上使用。
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應用程序兼容。如果要使用Percona XtraDB Cluster,你的應用程序基本不需要作任何更改。
此次發布的Percona XtraDB Cluster為alpha版本,不建議在實際工作中使用,開發者可據此了解Percona XtraDB Cluster的特性和功能。
Percona XtraDB Cluster 5.5.41-25.11 發布,此版本主要修復以下錯誤:
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XtraBackup SSTwouldn’t stop when was SIGKILLed. This would prevent MySQL to initiate a new transfer as port 4444 was already utilized. Bug fixed #1380697.
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garbd was returning incorrect return code, ie. when garbd was already started, return code was
0
. Bugs fixed #1308103 and #1422863. -
wsrep_sst_xtrabackup-v2
script was causing innobackupex to print a false positive stack trace into the log. Bug fixed #1407599. -
MyISAM DDL (
CREATE TABLE
only) isn’t replicated anymore when wsrep_replicate_myisam isOFF
. Note, for older nodes in the cluster, wsrep_replicate_myisam should work since the TOI decision (for MyISAMDDL) is done on origin node. Mixing of non-<emMyISAM and MyISAM tables in the same DDL statement is not recommended with wsrep_replicate_myisam <code OFF since if any table in list is MyISAM, the whole DDL statement is not put under TOI (total order isolation). This also doesn’t work if default_storage_engine variable is set to MyISAM (which is not recommended for Percona XtraDB Cluster) and a table is created without theENGINE
option. Bug fixed #1402338.
詳細信息請查看發行說明。
下載地址:
http://www.percona.com/downloads/來自:http://www.oschina.net/news/61047/percona-xtradb-cluster-5-5-41-25-11