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https://issues.apache.org/jira/browse/AMBARI-9064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Lysnichenko updated AMBARI-9064:
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Attachment: AMBARI-9064.patch
> Change retry settings in Ambari installer for nm connect retry
> --------------------------------------------------------------
>
> Key: AMBARI-9064
> URL: https://issues.apache.org/jira/browse/AMBARI-9064
> Project: Ambari
> Issue Type: Task
> Components: ambari-server
> Affects Versions: 2.0.0
> Reporter: Dmitry Lysnichenko
> Assignee: Dmitry Lysnichenko
> Fix For: 2.0.0
>
> Attachments: AMBARI-9064.patch
>
>
> we need to change the nm retry settings to resolve the bug. The proposed new
> settings in yarn-site.xml are:
> yarn.client.nodemanager-connect.max-wait-ms = 60,000
> yarn.client.nodemanager-connect.retry-interval-ms = 10,000
> If the underlying rpc retry takes 1 sec * 50 times to finish (50 secs), this
> will make each round of retry to be 10 + 50 secs = 1 minute. From the code,
> there will be 60,000 / 10,000 = 6 times of retries. So, in total, if the node
> manager accidentally crashed and never goes up, we well retry 1 minute * 6
> times = 6 minutes. The whole calculation is based on the rpc settings (50
> times, 1 sec sleep time),
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