{"action":"created","issue":{"url":"https://api.github.com/repos/alibaba/RocketMQ/issues/400","repository_url":"https://api.github.com/repos/alibaba/RocketMQ","labels_url":"https://api.github.com/repos/alibaba/RocketMQ/issues/400/labels{/name}","comments_url":"https://api.github.com/repos/alibaba/RocketMQ/issues/400/comments","events_url":"https://api.github.com/repos/alibaba/RocketMQ/issues/400/events","html_url":"https://github.com/alibaba/RocketMQ/issues/400","id":187281813,"number":400,"title":"broker slave 节点的作用","user":{"login":"markray","id":9819364,"avatar_url":"https://avatars.githubusercontent.com/u/9819364?v=3","gravatar_id":"","url":"https://api.github.com/users/markray","html_url":"https://github.com/markray","followers_url":"https://api.github.com/users/markray/followers","following_url":"https://api.github.com/users/markray/following{/other_user}","gists_url":"https://api.github.com/users/markray/gists{/gist_id}","starred_url":"https://api.github.com/users/markray/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/markray/subscriptions","organizations_url":"https://api.github.com/users/markray/orgs","repos_url":"https://api.github.com/users/markray/repos","events_url":"https://api.github.com/users/markray/events{/privacy}","received_events_url":"https://api.github.com/users/markray/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-11-04T08:57:17Z","updated_at":"2016-11-04T09:30:26Z","closed_at":null,"body":"如果一个broker的 master挂了，slave 会晋升为master吗？ slave节点是在什么情况下被消费者消费的？\r\n"},"comment":{"url":"https://api.github.com/repos/alibaba/RocketMQ/issues/comments/258381831","html_url":"https://github.com/alibaba/RocketMQ/issues/400#issuecomment-258381831","issue_url":"https://api.github.com/repos/alibaba/RocketMQ/issues/400","id":258381831,"user":{"login":"markray","id":9819364,"avatar_url":"https://avatars.githubusercontent.com/u/9819364?v=3","gravatar_id":"","url":"https://api.github.com/users/markray","html_url":"https://github.com/markray","followers_url":"https://api.github.com/users/markray/followers","following_url":"https://api.github.com/users/markray/following{/other_user}","gists_url":"https://api.github.com/users/markray/gists{/gist_id}","starred_url":"https://api.github.com/users/markray/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/markray/subscriptions","organizations_url":"https://api.github.com/users/markray/orgs","repos_url":"https://api.github.com/users/markray/repos","events_url":"https://api.github.com/users/markray/events{/privacy}","received_events_url":"https://api.github.com/users/markray/received_events","type":"User","site_admin":false},"created_at":"2016-11-04T09:30:26Z","updated_at":"2016-11-04T09:30:26Z","body":"谢谢您的及时回复. 但是如果一条消息在master提交后，master挂了，但是master还没来得及同步给slave，这条消息不久丢失了？"}}
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