SunShun created ZEPPELIN-5744:
---------------------------------
Summary: Allow NoteManager for concurrent operation
Key: ZEPPELIN-5744
URL: https://issues.apache.org/jira/browse/ZEPPELIN-5744
Project: Zeppelin
Issue Type: Bug
Affects Versions: 0.10.1, 0.10.0, 0.9.0
Reporter: SunShun
Assignee: SunShun
Fix For: 0.11.0
Attachments: image-2022-05-28-09-57-55-436.png,
image-2022-05-28-10-00-12-964.png, image-2022-05-28-10-06-09-095.png
When multi users perform some notebook/folder operation, like rename or move,
some notebooks become not accessible from zeppelin page, while they are still
existing on the HDFS, and only resort to restart Zeppelin daemon to solve the
problem.
!image-2022-05-28-09-57-55-436.png|width=343,height=109!
Some unit test is created to simulate the concurrent request scenario and
reproduce the issue successfully, including the operations of saveNote,
moveNote, moveFolder and removeNote.
!image-2022-05-28-10-00-12-964.png|width=439,height=139!
Accordingly, some changes are made to ensure thread safety of note manager
operation, so that the note or folder info will not be lost, after which the
unit test get passed. A PR will submitted later.
!image-2022-05-28-10-06-09-095.png|width=321,height=173!
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
