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https://issues.apache.org/jira/browse/HBASE-15318?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15163304#comment-15163304
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Yong Zhang commented on HBASE-15318:
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Thanks [~mbertozzi] for explain.
bq. So, the ephemeral nodes the RS registers on startup
Yes, RS will send a heartbeat to HM.
bq. When you say ..."but we find many user network issue is not network
disconnected but package lost", is it that the RS is dead/lost (but its zk
connection is fine?)
Here just describe one case, that when RS start, it will create one znode on
zk, but some time later, network package has 10% lost for example, because
connection from this RS to ZK is not break then, HM also consider this RS is
health, but in fact this RS may could not provide service.
> Zk-less region server state management
> --------------------------------------
>
> Key: HBASE-15318
> URL: https://issues.apache.org/jira/browse/HBASE-15318
> Project: HBase
> Issue Type: Improvement
> Reporter: Yong Zhang
> Assignee: Yong Zhang
>
> Current region server state is managed via znode created by region server,
> master just listen these nodes. but we find many user network issue is not
> network disconnected but package lost, which is hard to capture because
> connection between region server and zk is fine.
> This jira goal is region server state is managed by master without shared
> info in zk, via enhancement heartbeat from region server to master.
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