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https://issues.apache.org/jira/browse/LIVY-617?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Saisai Shao resolved LIVY-617.
------------------------------
Fix Version/s: 0.7.0
Assignee: shanyu zhao
Resolution: Fixed
Issue resolved by pull request 187
https://github.com/apache/incubator-livy/pull/187
> Livy session leak on Yarn when creating session duplicated names
> ----------------------------------------------------------------
>
> Key: LIVY-617
> URL: https://issues.apache.org/jira/browse/LIVY-617
> Project: Livy
> Issue Type: Bug
> Components: Server
> Affects Versions: 0.6.0
> Reporter: shanyu zhao
> Assignee: shanyu zhao
> Priority: Major
> Fix For: 0.7.0
>
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> When running Livy on Yarn and try to create session with duplicated names,
> Livy server sends response to client "Duplicate session name: xxx" but it
> doesn't stop the session. The session creation failed, however, the Yarn
> application got started and keeps running forever.
> This is because during livy session register method, exception
> "IllegalArgumentException" is thrown without stopping the session:
> {code:java}
> def register(session: S): S = {
> info(s"Registering new session ${session.id}")
> synchronized {
> session.name.foreach { sessionName =>
> if (sessionsByName.contains(sessionName)) {
> throw new IllegalArgumentException(s"Duplicate session name:
> ${session.name}")
> } else {
> sessionsByName.put(sessionName, session)
> }
> }
> sessions.put(session.id, session)
> session.start()
> }
> session
> }{code}
>
> Reproduction scripts:
> curl -s -k -u username:password -X POST --data '\{"name": "duplicatedname",
> "kind": "pyspark"}' -H "Content-Type: application/json"
> 'https://myserver/livy/v1/sessions'
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