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https://issues.apache.org/jira/browse/TEZ-4228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor updated TEZ-4228:
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Attachment: (was: syslog_good.log)
> TezClassLoader should be used in TezChild and for Configuration objects
> -----------------------------------------------------------------------
>
> Key: TEZ-4228
> URL: https://issues.apache.org/jira/browse/TEZ-4228
> Project: Apache Tez
> Issue Type: Bug
> Reporter: László Bodor
> Assignee: László Bodor
> Priority: Blocker
> Labels: 0.10_blocker
> Fix For: 0.10.0
>
> Attachments: hive_llap.log, syslog_bad.log, syslog_good.log
>
>
> While testing a 0.10.0 staging artifact, I found that there are 2 issues of
> TEZ-3860/TEZ-4223, which should be fixed before 0.10.0 release. The issues
> came up while hive precommit tests:
> http://ci.hive.apache.org/blue/organizations/jenkins/hive-precommit/detail/PR-1311/11/tests
> 1. TezClassLoader static initialization is not deterministic, or at least it
> seems like LogicalIOProcessorRuntimeTask.run can before it. See "tez
> classloader" log messages in [^syslog_bad.log] . The changes in TezChild
> solved the problem as [^syslog_good.log]
> 2. Configuration objects have their own classloader, which should be
> overridden with TezClassLoader, otherwise they won't find newly added
> classes, issue in [^hive_llap.log] . This one is being solved within
> TezUtils methods.
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