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https://issues.apache.org/jira/browse/HIVE-24108?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor updated HIVE-24108:
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Description:
TEZ-4228 fixes an issue from tez side, which is about to use TezClassLoader
instead of the system classloader. However, there are some codepaths, e.g. in
[^hive_log_llap.log] which shows that the system class loader is used. As
thread context classloaders are inherited, the easier solution is to
early-initialize TezClassLoader in LlapDaemon, and let all threads use that as
context class loader, so this solution is more like TEZ-4223 for llap daemons.
was:TEZ-4228 fixes an issue from tez side, which is about to use
TezClassLoader instead of the system classloader. However, there are some
codepaths, e.g. in [^hive_log_llap.log] which shows that the system class
loader is used. As thread context classloaders are inherited, the easier
solution is to early-initialize TezClassLoader in LlapDaemon, and let all
threads use that as context class loader, so this solution is more like
TEZ-4223 for llap daemons.
> LlapDaemon should use TezClassLoader
> ------------------------------------
>
> Key: HIVE-24108
> URL: https://issues.apache.org/jira/browse/HIVE-24108
> Project: Hive
> Issue Type: Improvement
> Reporter: László Bodor
> Assignee: László Bodor
> Priority: Major
> Attachments: hive_log_llap.log
>
>
> TEZ-4228 fixes an issue from tez side, which is about to use TezClassLoader
> instead of the system classloader. However, there are some codepaths, e.g. in
> [^hive_log_llap.log] which shows that the system class loader is used. As
> thread context classloaders are inherited, the easier solution is to
> early-initialize TezClassLoader in LlapDaemon, and let all threads use that
> as context class loader, so this solution is more like TEZ-4223 for llap
> daemons.
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