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Posted to common-issues@hadoop.apache.org by "Xiao Chen (JIRA)" <ji...@apache.org> on 2016/10/06 22:46:20 UTC
[jira] [Commented] (HADOOP-13590) Retry until TGT expires even if
the UGI renewal thread encountered exception
[ https://issues.apache.org/jira/browse/HADOOP-13590?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15553450#comment-15553450 ]
Xiao Chen commented on HADOOP-13590:
------------------------------------
Hi [~stevel@apache.org],
Any comments on this one? Thanks!
> Retry until TGT expires even if the UGI renewal thread encountered exception
> ----------------------------------------------------------------------------
>
> Key: HADOOP-13590
> URL: https://issues.apache.org/jira/browse/HADOOP-13590
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.8.0, 2.7.3, 2.6.4
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Attachments: HADOOP-13590.01.patch, HADOOP-13590.02.patch, HADOOP-13590.03.patch, HADOOP-13590.04.patch, HADOOP-13590.05.patch, HADOOP-13590.06.patch, HADOOP-13590.07.patch
>
>
> The UGI has a background thread to renew the tgt. On exception, it [terminates itself|https://github.com/apache/hadoop/blob/bee9f57f5ca9f037ade932c6fd01b0dad47a1296/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java#L1013-L1014]
> If something temporarily goes wrong that results in an IOE, even if it recovered no renewal will be done and client will eventually fail to authenticate. We should retry with our best effort, until tgt expires, in the hope that the error recovers before that.
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