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Steve Loughran commented on HADOOP-13590: ----------------------------------------- I'm looking at {{getMaxTgtRenewalRetryCount}} and not sure I understand it. I'm confident I could work out what it does given time, but it's not immediately obvious. What does it do? And could some comments in the code describe that Test-wise, I've added support for more backoff in tests that wait; look in LambdaTestUtils. I also see that the code to set up a {{javax.security.auth.login.Configuration}} is surfacing again...there are a fair few copies of this code around (I know one in the registry tests), all of which have those same hacks for IBM JVMs, etc. Which makes it a maintenance pain. Could we think about coalescing them into one or two utility methods somewhere? > 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, HADOOP-13590.08.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. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org