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Posted to issues@hbase.apache.org by "huaxiang sun (JIRA)" <ji...@apache.org> on 2016/06/04 03:41:59 UTC
[jira] [Comment Edited] (HBASE-14644) Region in transition metric
is broken
[ https://issues.apache.org/jira/browse/HBASE-14644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15315296#comment-15315296 ]
huaxiang sun edited comment on HBASE-14644 at 6/4/16 3:41 AM:
--------------------------------------------------------------
I am debugging the same issue and understand the root cause now. I am working on a patch.
[~eclark], is it ok with you? Thanks
Explain a little bit here:
in HMaster.java,
{code}
protected void waitForMasterActive(){
boolean tablesOnMaster = BaseLoadBalancer.tablesOnMaster(conf);
while (!(tablesOnMaster && isActiveMaster)
&& !isStopped() && !isAborted()) {
sleeper.sleep();
}
}
{code}
In branch-1, tablesOnMaster is false by default, so it blockes here. doMetrics() is never called.
In master, tablesOnMaster is true by default so it works by default.
My plan is to have a scheduleDoMetricsChore() in HRegionServer and let HMaster to override it, so HMaster can scedule a chore to call doMetrics() periodically.
Please let me know if this is ok. Credit goes to [~mbertozzi] as well, I posted comments after discussion with him, thanks.
was (Author: huaxiang):
I am debugging the same issue and know the root cause now. I am working on a patch.
[~eclark], is it ok with you? Thanks
Explain a little bit here:
in HMaster.java,
{code}
protected void waitForMasterActive(){
boolean tablesOnMaster = BaseLoadBalancer.tablesOnMaster(conf);
while (!(tablesOnMaster && isActiveMaster)
&& !isStopped() && !isAborted()) {
sleeper.sleep();
}
}
{code}
In branch-1, tablesOnMaster is false by default, so it blockes here. doMetrics() is never called.
In master, tablesOnMaster is true by default so it works by default.
My plan is to have a scheduleDoMetricsChore() in HRegionServer and let HMaster to override it, so HMaster can scedule a chore to call doMetrics() periodically.
Please let me know if this is ok. Credit goes to [~mbertozzi] as well, I posted comments after discussion with him, thanks.
> Region in transition metric is broken
> -------------------------------------
>
> Key: HBASE-14644
> URL: https://issues.apache.org/jira/browse/HBASE-14644
> Project: HBase
> Issue Type: Bug
> Reporter: Elliott Clark
> Assignee: huaxiang sun
>
> ritCount stays 0 no matter what
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