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https://issues.apache.org/jira/browse/HBASE-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905133#action_12905133
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stack commented on HBASE-1502:
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Post hbase-2692, heartbeats:
+ Carry to the master the HServerInfo from each regionserver.
+ When a split, a message from rs tells master about the it; master uses info
to update its inmemory map of cluster
+ Master tells rs to shutdown (needed currently if rs is carrying a meta region)
I was thinking that RSs could publish load info to zk on a period -- every
minute or 5 (some fraction of the balancer interval).
For split info, need to flag master somehow and needs to be mechanism where the
split can be rediscovered if missed for some reason (The anti-entropy doohickey
where clients tell master of 'problems' would be one such way).
On shutdown message, I need to do a little more smarts around shutdown and that
should eliminate the shutdown message (need to expose shutdown as something a
client can invoke against an RS).
> Remove need for heartbeats in HBase
> -----------------------------------
>
> Key: HBASE-1502
> URL: https://issues.apache.org/jira/browse/HBASE-1502
> Project: HBase
> Issue Type: Wish
> Reporter: Nitay Joffe
> Fix For: 0.92.0
>
>
> HBase currently uses heartbeats between region servers and the master,
> piggybacking information on them when it can. This issue is to investigate if
> we can get rid of the need for those using ZooKeeper events.
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