[
https://issues.apache.org/jira/browse/HADOOP-13817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Harsh J updated HADOOP-13817:
-----------------------------
Release Note: A new introduced configuration key
"hadoop.security.groups.shell.command.timeout" allows applying a finite wait
timeout over the 'id' commands launched by the ShellBasedUnixGroupsMapping
plugin. Values specified can be in any valid time duration units:
https://hadoop.apache.org/docs/current/api/org/apache/hadoop/conf/Configuration.html#getTimeDuration-java.lang.String-long-java.util.concurrent.TimeUnit-
> Add a finite shell command timeout to ShellBasedUnixGroupsMapping
> -----------------------------------------------------------------
>
> Key: HADOOP-13817
> URL: https://issues.apache.org/jira/browse/HADOOP-13817
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.6.0
> Reporter: Harsh J
> Assignee: Harsh J
> Priority: Minor
> Fix For: 2.9.0, 3.0.0-beta1
>
> Attachments: HADOOP-13817.000.patch, HADOOP-13817-branch-2.000.patch
>
>
> The ShellBasedUnixGroupsMapping run various {{id}} commands via the
> ShellCommandExecutor modules without a timeout set (its set to 0, which
> implies infinite).
> If this command hangs for a long time on the OS end due to an unresponsive
> groups backend or other reasons, it also blocks the handlers that use it on
> the NameNode (or other services that use this class). That inadvertently
> causes odd timeout troubles on the client end where its forced to retry (only
> to likely run into such hangs again with every attempt until at least one
> command returns).
> It would be helpful to have a finite command timeout after which we may give
> up on the command and return the result equivalent of no groups found.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
