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From "Hrishikesh Gadre (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-5129) If zookeeper is down, SolrCloud nodes will not start correctly, even if zookeeper is started later
Date Wed, 16 Aug 2017 04:21:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-5129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16128284#comment-16128284
] 

Hrishikesh Gadre commented on SOLR-5129:
----------------------------------------

[~caomanhdat] Couple of nits in your patch,

Instead of 
{code}
int startUpZkTimeOut = Integer.parseInt(System.getProperty("startUpZkTimeOut", "60"));
{code}

How about
{code}
int startUpZkTimeOut = Integer. getInteger("startUpZkTimeOut", 60);
{code}

Also ideally this parameter should be exposed via solr.xml (e.g. under solrcloud section).
What do you think?



> If zookeeper is down, SolrCloud nodes will not start correctly, even if zookeeper is
started later
> --------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-5129
>                 URL: https://issues.apache.org/jira/browse/SOLR-5129
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>    Affects Versions: 4.4
>            Reporter: Shawn Heisey
>            Priority: Minor
>             Fix For: 4.9, 6.0
>
>         Attachments: SOLR-5129.patch
>
>
> Summary of report from user on mailing list:
> If zookeeper is down or doesn't have quorum when you start Solr nodes, they will not
function correctly, even if you later start zookeeper.  While zookeeper is down, the log shows
connection failures as expected.  When zookeeper comes back, the log shows:
> INFO  - 2013-08-09 15:48:41.528; org.apache.solr.common.cloud.ConnectionManager; Client->ZooKeeper
status change trigger but we are already closed
> At that point, Solr (admin UI and all other functions) does not work, and won't work
until it is restarted.



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