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https://issues.apache.org/jira/browse/HIVE-10970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14581461#comment-14581461
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Yongzhi Chen commented on HIVE-10970:
-------------------------------------
[~vgumashta], there are perhaps some issues related to thread switch sessions,
following is the code in SessionState.java:
{noformat}
/**
* set current session to existing session object if a thread is running
* multiple sessions - it must call this method with the new session object
* when switching from one session to another.
*/
public static SessionState start(SessionState startSs) {
setCurrentSessionState(startSs);
.....
{noformat}
This setCurrentSessionState method will end up calling :
{noformat}
private void attach(HiveConf conf) {
this.conf = conf;
ClassLoader classLoader = conf.getClassLoader();
if (classLoader != null) {
Thread.currentThread().setContextClassLoader(classLoader);
}
}
{noformat}
I wonder if (classLoader == null), what the thread session should be? It looks
not right just use previous session's, should it get some ini classloader for
the new session?
> Revert HIVE-10453: HS2 leaking open file descriptors when using UDFs
> --------------------------------------------------------------------
>
> Key: HIVE-10970
> URL: https://issues.apache.org/jira/browse/HIVE-10970
> Project: Hive
> Issue Type: Bug
> Reporter: Vaibhav Gumashta
> Assignee: Vaibhav Gumashta
>
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