OCF, Open Cluster Framework, 开放集群框架
OCF RA: add Open Cluster Framework Resource Agent
Shell script working as a Resource Agent (RA) compliant with the Open Cluster Framework (OCF) specification. These resource agents are used by two cluster resource management implementations like Pacemaker or rgmanager.
See also:
https://github.com/ClusterLabs/resource-agents
http://www.linux-ha.org/wiki/OCF_Resource_Agents
http://www.linux-ha.org/doc/dev-guides/ra-dev-guide.html
OCF RA 代理最适合用于 High Availability，特别是在您需要主资源或特殊监视功能时。这些代理通常位于 /usr/lib/ocf/resource.d/heartbeat/。其功能与 LSB 脚本的功能相似。但是，它们始终使用环境变量来执行配置，这使它们可以轻松地接受和处理参数。
Introducing the Open Cluster Framework
https://www.linuxjournal.com/article/6143
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