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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19772) Do not close connection to zk when there are still pending request in ReadOnlyZKClient
Date Fri, 12 Jan 2018 06:28:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16323609#comment-16323609

stack commented on HBASE-19772:

I tried it on one of my wonky machines. It did a hard hang. I can't jstack it. W/o the patch,
zk tests mostly pass but I'll then get an occasional test fail usually in TestReadOnlyZKClient.

I've started builds on a GCE instead. Its much smoother. Interesting though is I saw what
I think is the hang here: https://issues.apache.org/jira/browse/HBASE-19753?focusedCommentId=16321416&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16321416
from the parent where Master gets stuck reading clusterid.

Ran the hbase-zookeeper module tests w/ this patch on GCE and its fine there. All run promptly
as opposed to slow and hanging on my wonky machines.

> Do not close connection to zk when there are still pending request in ReadOnlyZKClient
> --------------------------------------------------------------------------------------
>                 Key: HBASE-19772
>                 URL: https://issues.apache.org/jira/browse/HBASE-19772
>             Project: HBase
>          Issue Type: Sub-task
>          Components: Zookeeper
>            Reporter: stack
>            Assignee: Duo Zhang
>             Fix For: 2.0.0-beta-1
>         Attachments: HBASE-19772-v2.patch, HBASE-19772.master.001.patch
> Here is [~Apache9] 's patch from the parent so it applies on top of what was committed
in the parent.
> Patch makes it so we we don't close out zk if available Tasks to run and nicer logging.

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