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Posted to dev@hbase.apache.org by "Nitay Joffe (JIRA)" <ji...@apache.org> on 2009/06/09 05:52:08 UTC
[jira] Created: (HBASE-1502) Remove need for heartbeats in HBase
Remove need for heartbeats in HBase
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Key: HBASE-1502
URL: https://issues.apache.org/jira/browse/HBASE-1502
Project: Hadoop HBase
Issue Type: Wish
Reporter: Nitay Joffe
Fix For: 0.20.1
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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[jira] Updated: (HBASE-1502) Remove need for heartbeats in HBase
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-1502:
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Fix Version/s: (was: 0.20.1)
0.21.0
Not for a point release. Lets do in 0.21.
> Remove need for heartbeats in HBase
> -----------------------------------
>
> Key: HBASE-1502
> URL: https://issues.apache.org/jira/browse/HBASE-1502
> Project: Hadoop HBase
> Issue Type: Wish
> Reporter: Nitay Joffe
> Fix For: 0.21.0
>
>
> 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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[jira] Commented: (HBASE-1502) Remove need for heartbeats in HBase
Posted by "ryan rawson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717553#action_12717553 ]
ryan rawson commented on HBASE-1502:
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right now the master makes assignment decisions during the 'check in' RPC. Basically the master doesn't proactively assign regions, instead it passively waits for regionservers to call the master.
We'd also need new RPC so a master can be much more proactive about assigning regions. This could reduce assignment time by seconds (!).
> Remove need for heartbeats in HBase
> -----------------------------------
>
> Key: HBASE-1502
> URL: https://issues.apache.org/jira/browse/HBASE-1502
> Project: Hadoop HBase
> Issue Type: Wish
> Reporter: Nitay Joffe
> Fix For: 0.20.1
>
>
> 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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