Percona XtraDB Cluster 5.5.41-25.11 发布
Percona XtraDB Cluster是针对MySQL用户的高可用性和扩展性解决方案,基于Percona Server 。其包括了Write Set REPlication补丁,使用Galera 2.0库,这是一个针对事务性应用程序的同步多主机复制插件。
Percona Server是MySQL的改进版本,使用 XtraDB 存储引擎,在功能和性能上较 MySQL 有着很显著的提升,如提升了在高负载情况下的 InnoDB 的性能,为 DBA 提供了一些非常有用的性能诊断工具,另外有更多的参数和命令来控制服务器行为。
Percona XtraDB Cluster提供了:
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同步复制,事务可以在所有节点上提交。
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多主机复制,你可以写到任何节点。
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从(slave)服务器上的并行应用事件,真正的“并行复制”。
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自动节点配置。
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数据一致性,不再有未同步的从服务器。
Percona XtraDB Cluster完全兼容MySQL或Percona Server,包括:
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数据兼容。Percona XtraDB Cluster可在由MySQL或Percona Server创建的数据库上使用。
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应用程序兼容。如果要使用Percona XtraDB Cluster,你的应用程序基本不需要作任何更改。
此次发布的Percona XtraDB Cluster为alpha版本,不建议在实际工作中使用,开发者可据此了解Percona XtraDB Cluster的特性和功能。
Percona XtraDB Cluster 5.5.41-25.11 发布,此版本主要修复以下错误:
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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.
详细信息请查看发行说明。
下载地址:
http://www.percona.com/downloads/来自:http://www.oschina.net/news/61047/percona-xtradb-cluster-5-5-41-25-11