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https://issues.apache.org/jira/browse/HBASE-26220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17419301#comment-17419301
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Duo Zhang edited comment on HBASE-26220 at 9/23/21, 4:19 PM:
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I think this is a very important improvements.

In the current implementation, every region server needs to watch all the 
region servers in the cluster, through a zk watcher, which put big pressure on 
zookeeper for a large cluster.

We'd better land this before cutting 2.5.0, but maybe we need a backport issue 
as the implementation will be different since there is no 
AsyncClusterConnection for branch-2.


was (Author: apache9):
I think this is a very important improvements.

In the current implementation, every region server needs to watch all the 
region servers in the cluster, through a zk watcher, which put big pressure on 
zookeeper for a large cluster.

We'd better land this before cutting 2.5.0.

> Use P2P communicate between region servers to sync the list for bootstrap node
> ------------------------------------------------------------------------------
>
>                 Key: HBASE-26220
>                 URL: https://issues.apache.org/jira/browse/HBASE-26220
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>            Priority: Major
>
> For returning bootstrap nodes to client, we do not need to always track 
> exactly the current live region server. But now, we just set a watcher on 
> zookeeper to watch all the live region servers, on every region server, for 
> large cluster, it will be a big pressure for zookeeper.
> So here I think, we could let region servers to communicate with each other 
> to sync the available bootstrap node, like a P2P network.
> Will put a simple design doc soon.



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