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https://issues.apache.org/jira/browse/HADOOP-10219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lukas Majercak updated HADOOP-10219:
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Description:
When {{ClientCache.stopClient()}} is called to stop the IPC client, if the
client
is blocked spinning due to a connectivity problem, it does not exit until the
policy has timed out -so the stopClient() operation can hang for an extended
period of time.
This can surface in the shutdown hook of FileSystem.cache.closeAll()
Also, Client.stop() is for used in NN switch from Standby to Active, and can
therefore have very bad consequences and cause downtime.
was:
When {{ClientCache.stopClient()}} is called to stop the IPC client, if the
client
is blocked spinning due to a connectivity problem, it does not exit until the
policy has timed out -so the stopClient() operation can hang for an extended
period of time.
This can surface in the shutdown hook of FileSystem.cache.closeAll()
> ipc.Client.setupIOstreams() needs to check for ClientCache.stopClient
> requested shutdowns
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-10219
> URL: https://issues.apache.org/jira/browse/HADOOP-10219
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc
> Affects Versions: 2.2.0, 2.6.0
> Reporter: Steve Loughran
> Assignee: Kihwal Lee
> Priority: Major
> Attachments: HADOOP-10219.patch, HADOOP-10219.v1.patch,
> HADOOP-10219.v2.patch
>
>
> When {{ClientCache.stopClient()}} is called to stop the IPC client, if the
> client
> is blocked spinning due to a connectivity problem, it does not exit until
> the policy has timed out -so the stopClient() operation can hang for an
> extended period of time.
> This can surface in the shutdown hook of FileSystem.cache.closeAll()
> Also, Client.stop() is for used in NN switch from Standby to Active, and can
> therefore have very bad consequences and cause downtime.
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