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From "Sijie Guo (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DL-93) LogSegmentMetadataStore should only notify when the list of log segments is updated
Date Wed, 21 Dec 2016 08:14:58 GMT

     [ https://issues.apache.org/jira/browse/DL-93?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sijie Guo resolved DL-93.
-------------------------
    Resolution: Fixed

> LogSegmentMetadataStore should only notify when the list of log segments is updated
> -----------------------------------------------------------------------------------
>
>                 Key: DL-93
>                 URL: https://issues.apache.org/jira/browse/DL-93
>             Project: DistributedLog
>          Issue Type: Improvement
>          Components: distributedlog-core
>            Reporter: Sijie Guo
>            Assignee: Sijie Guo
>             Fix For: 0.4.0
>
>
> Currently it notifies the listeners not only when there is a change but also when session
expires. it would break the reada
> head loop and cause readers have to wait until it is able to connect to zookeeper again.
>     With this change, it would only notify when the list of log segments is updated.
If it disconnects to zookeeper, the listen
> er won't be notified and it would keep reading from the log segments it knows.



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