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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DL-88) remove watches when unregister children watches
Date Tue, 13 Dec 2016 02:42:58 GMT

    [ https://issues.apache.org/jira/browse/DL-88?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15743918#comment-15743918

ASF GitHub Bot commented on DL-88:

GitHub user sijie opened a pull request:


    DL-88: remove watches when unregister children watches

    merge twitter's change from Sijie Guo

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/sijie/incubator-distributedlog merge/DL-88

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #60
commit 904b8986b46fc908cfd1a0ee05b35dce77d12f5c
Author: Jordan Bull <jbull@twitter.com>
Date:   2016-05-13T18:27:19Z

    when publishing per partition stats, also publish per stream stats

commit 00919605f1bfa3f3e0c8514dc63552df4eeb3cc2
Author: Jordan Bull <jbull@twitter.com>
Date:   2016-05-18T17:18:34Z

    use zero padded partition strings in stats

commit 7b46a9ac6bb5d520366069c244332347ef019e8e
Author: Sijie Guo <sijieg@twitter.com>
Date:   2016-05-23T23:49:19Z

    Improve handling of lock conflicts in zk session lock
    - lock reacquire could happen in foreground and background thread. so use a semaphore
to make sure there is only on e outstanding  acquire operation. and  check if already hold
lock before reacquire.
    - fix handling zk sibling znode logic. as the znode is sequential znode, the name would
be different each time. so only comparing the client id and session id of the znodes

commit 517c77c164cb989ae9829cbd80bf2e492eb8e364
Author: Leigh Stewart <lstewart@twitter.com>
Date:   2016-12-13T00:33:33Z

    Introduce periodic keepalive control record in writer
        * so the writer will periodically write 'keepalive' control record to make sure the
stream is alive. so if the write proxy is disconnected from bookies, the control record will
fail to write hence write proxy gets a chance to drop the ownership.

commit b571d3b4adcc140acca881979782474c27459d34
Author: Sijie Guo <sijieg@twitter.com>
Date:   2016-05-24T04:01:57Z

    DL: remove watches when unregister children watches

commit 98dc9ab2df8af7af26ca68dbe93be3d420cda417
Author: Sijie Guo <sijieg@twitter.com>
Date:   2016-05-27T00:06:31Z

     Remove watcher only when it registered watcher
     (reduce the annoying logging from zookeeper client about "Failed to find watcher!"


> remove watches when unregister children watches
> -----------------------------------------------
>                 Key: DL-88
>                 URL: https://issues.apache.org/jira/browse/DL-88
>             Project: DistributedLog
>          Issue Type: New Feature
>          Components: distributedlog-core
>            Reporter: Sijie Guo
>            Assignee: Sijie Guo
>             Fix For: 0.4.0
> use the new zk removeWatches api to remove watchers.

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