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https://issues.apache.org/jira/browse/KYLIN-4290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16997986#comment-16997986
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ASF GitHub Bot commented on KYLIN-4290:
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nichunen commented on pull request #985: KYLIN-4290: Add file lock to kylin
startup script to avoid starting multiple instances on one node
URL: https://github.com/apache/kylin/pull/985
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> Add file lock to kylin startup script to avoid starting multiple instances on
> one node
> --------------------------------------------------------------------------------------
>
> Key: KYLIN-4290
> URL: https://issues.apache.org/jira/browse/KYLIN-4290
> Project: Kylin
> Issue Type: Improvement
> Components: Tools, Build and Test
> Affects Versions: v2.6.0
> Reporter: Zheng Yang
> Priority: Minor
> Fix For: v3.0.0, v2.6.5
>
>
> When we restart the Kylin instance, due to the slow start of kylin, some
> monitoring scripts fail to detect the surviving kylin, and will also start
> the kylin instance. As a result, there are multiple kylin instances on a node.
> By adding a file lock to the startup script (kylin.sh), it is guaranteed that
> only one kylin instance will be started when concurrent startup on a node.
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