发布于 2017-06-04 00:00:27 | 156 次阅读 | 评论: 0 | 来源: 网友投递
Percona XtraDB Cluster 同步多主机复制插件
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 XtraDB Cluster 5.7.17-27.20 发布了，二进制文件可在 下载区 或 软件仓库 中下载。（注意：你也可以从 Docker Hub 仓库中的镜像运行 Docker 容器）
Percona XtraDB Cluster 5.7.17-27.20 基于以下这些项目：
Galera Replication library 3.20
wsrep API version 2
该版本除了上游更改和相关包的修复外，对主要组件没有新功能或错误修复：
PXC-749: Fixed memory leak when running INSERT on a table without primary key defined and wsrep_certify_nonPK disabled (set to 0).
NOTE: We recommend you define primary keys on all tables for correct write-set replication.
PXC-812: Fixed SST script to leave the DONOR keyring when JOINER clears the datadir.
PXC-813: Fixed SST script to use UTC time format.
PXC-816: Fixed hook for caching GTID events in asynchronous replication. For more information, see #1681831.
PXC-820: Enabled querying of pxc_maint_mode by another client during the transition period.
PXC-823: Fixed SST flow to gracefully shut down JOINER node if SST fails because DONOR leaves the cluster due to network failure. This ensures that the DONOR is then able to recover to synced state when network connectivity is restored For more information, see #1684810.
PXC-824: Fixed graceful shutdown of Percona XtraDB Cluster node to wait until applier thread finishes.