[ZEPPELIN-2433] Notebook cell's text disappearing randomly - Git storage

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.7.1
• Fix Version/s: 0.9.0
• Assignee: Chae Sung Lim
• Reporter: Guillaume Van Delsen
• Created: 20/Apr/17 16:08
• Updated: 24/Dec/20 03:19
• Resolved: 02/Jun/17 14:18

Description

Hello,

Since we have multiple users working with Zeppelin, we are facing weird issue. Cell text randomly disappeared, sometimes just few cells and sometimes the whole notebook gets ripped off.

I've identified in the log files the following lines ;

INFO [2017-04-20 14:44:49,870] (

{qtp1393931310-804} Folder.java[addNote]:184) - Add note 2CH2QEE4J to folder acc
INFO [2017-04-20 14:44:49,941] ({qtp1393931310-785} NotebookServer.java[sendNote]:705) - New operation from 10.10.249.138 : 58626 : golardp : GET_NOTE : 2CE86BXSP
INFO [2017-04-20 14:44:49,945] ({qtp1393931310-815} NotebookServer.java[sendNote]:705) - New operation from 10.10.249.138 : 59174 : golardp : GET_NOTE : 2CH2QEE4J
INFO [2017-04-20 14:44:49,946] ({qtp1393931310-804}

NotebookServer.java[sendNote]:705) - New operation from 10.10.249.142 : 35234 : lonckem : GET_NOTE : 2CC4Y88BK
INFO [2017-04-20 14:44:50,000] (

{qtp1393931310-815} NotebookServer.java[sendNote]:705) - New operation from 10.10.249.138 : 59174 : golardp : GET_NOTE : 2CH2QEE4J
ERROR [2017-04-20 14:44:58,149] ({qtp1393931310-815}

NotebookServer.java[onMessage]:357) - Can't handle message
java.lang.NullPointerException
ERROR [2017-04-20 14:44:58,153] (

{qtp1393931310-804}

NotebookServer.java[onMessage]:357) - Can't handle message
java.lang.NullPointerException

But have a look at these files:
https://drive.google.com/drive/folders/0B4flaCIh3sQHSE1aUDJDN09ZbXc?usp=sharing

As you can see this error occurs quite often and is a real pain is the ass to live with.

I can provide more logs and would be glad to help, just let me know.

Cheers,

Issue Links

• blocks: ZEPPELIN-2276 Release 0.7.2

Sub-Tasks

• revison mode incorrect update: Resolved
• call incorrect websocket event on revision mode: Resolved
• broken paragraph or note: Resolved