Percona XtraDB Cluster 5.5.30-23.7.4 for MySQL 发布了,包含如下新特:
- Percona XtraDB Cluster has implemented initial implementation of weighted quorum. Weight for node can be assigned via pc.weight option in the wsrep_provider_options variable. Accepted values are in the range [0, 255] (inclusive). Quorum is computed using weighted sum over group members.
- Percona XtraDB Cluster will now be shipped with the
libjemalloclibrary. Benchmark showing the impact of memory allocators on MySQL performance can be found in this blogpost. - This release of Percona XtraDB Cluster has fixed number of foreign key and packaging bugs.
此外还修复了大量的bug,详细列表请看这里。
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。
PerconaXtraDBCluster5.5.30-23.7.4发布,新增加了节点权重分配功能,通过wsrep_provider_options变量中的pc.weight选项设置,范围为0到255。此版本还集成了libjemalloc内存管理库,并修复了一系列外键和打包错误。
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