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https://issues.apache.org/jira/browse/AMBARI-12548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmytro Sen updated AMBARI-12548:
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Attachment: AMBARI-12548.patch
> Ambari Agent does not register / heartbeat if "df" command hangs
> ----------------------------------------------------------------
>
> Key: AMBARI-12548
> URL: https://issues.apache.org/jira/browse/AMBARI-12548
> Project: Ambari
> Issue Type: Bug
> Components: ambari-agent
> Affects Versions: 2.1.0
> Reporter: Dmytro Sen
> Assignee: Dmytro Sen
> Priority: Critical
> Fix For: 2.1.1
>
> Attachments: AMBARI-12548.patch
>
>
> The agent executes the "df" command when it starts up.
> In rare scenarios, this command can hang (can even hanging for several days
> without any timeout). When this happens the agent won't move forward to the
> process of registration, etc.
> There's an ambari-server property called agent.check.mounts.timeout. This can
> be defined to force a timeout.
> However, we should always have a default timeout on the agent script side,
> even if this property is not defined to avoid a situation where the agent is
> completely hung.
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