Benoy Antony created ZEPPELIN-2463:
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Summary: Avoid Locking interpreterSettings during Notebook deletion
Key: ZEPPELIN-2463
URL: https://issues.apache.org/jira/browse/ZEPPELIN-2463
Project: Zeppelin
Issue Type: Bug
Reporter: Benoy Antony
Assignee: Benoy Antony
Deletion of a notebook requires locking _interpreterSettings_. If the deletion
is delayed , then lock is not released. At that point, we cannot run any
notebook because everything is waiting to lock _interpreterSettings_.
Looking at the code, there is no reason to lock the _InterpreterSettings_
object in _InterpreterSettingManager.removeNoteInterpreterSettingBinding_.
Similarly in _InterpreterSettingManager.getNoteInterpreterSettingBinding_ only
_interpreterSettingBinding_ is accessed and its already a thread safe object.
So we can remove synchronization on _InterpreterSettings_
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