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https://issues.apache.org/jira/browse/NIFI-13722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17883803#comment-17883803
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ASF subversion and git services commented on NIFI-13722:
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Commit 07611ded2bef42550c9dec4fc860465c48cb326b in nifi's branch
refs/heads/main from Mark Bathori
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=07611ded2b ]
NIFI-13722: Kerberos ticket renewal issue due static thread pool in Iceberg
library
This closes #9258.
Signed-off-by: Peter Turcsanyi <[email protected]>
> Kerberos ticket renewal issue due static thread pool in Iceberg library
> -----------------------------------------------------------------------
>
> Key: NIFI-13722
> URL: https://issues.apache.org/jira/browse/NIFI-13722
> Project: Apache NiFi
> Issue Type: Bug
> Reporter: Mark Bathori
> Assignee: Mark Bathori
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> There is a static worker Thread Pool in Iceberg which is used in multiple
> parts of the library:
> https://github.com/apache/iceberg/blob/main/core/src/main/java/org/apache/iceberg/util/ThreadPools.java#L45
>
> When the PutIceberg processor is started for the first time then this Thread
> Pool will be initialized with the initial Kerberos user and the processor
> will work properly until it is not restarted. When restart happens then a new
> Kerberos user will be initialized but the Thread Pool will still reference to
> the original Kerberos user so when the Kerberos ticket expires for the first
> user then it won't be able to renew it.
> Same issue happens when multiple processors are using the same classloader
> and the processor which initialized the Thread Pool is stopped then the other
> processors will start to fail.
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