shanyu zhao created LIVY-617:
--------------------------------
Summary: 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
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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