[AMBARI-17593] Ambari server backup error - failure if backup size exceeds 4GB

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: trunk
• Component/s: ambari-server
• Assignee: Nahappan Somasundaram
• Reporter: Nahappan Somasundaram
• Created: 06/Jul/16 16:32
• Updated: 24/Aug/16 17:19
• Resolved: 24/Aug/16 17:19

Description

PROBLEM:
When " ambari-server backup " is run it tries to zip the following directories:

/etc/ 
/var/lib/ambari-server/resources
/var/run/ambari-server/stack-recommendations/1/

And by any chance if the aggregated data in above directories exceeds 4gb you get the following error:

A problem occurred while unzipping. Details: Zipfile size would require ZIP64 extensions 
Could not create zip file. Details: Zipfile size would require ZIP64 extensions

STEPS TO REPRODUCE :
1)Exceed the Directory size greater than 4gb
2)Run ambari-server backup

EXPECTED RESULT : Backup should be successful and give something like:

[root@sandbox ~]# ambari-server backup
Using python  /usr/bin/python
Backing up Ambari File System state... *this will not backup the server database*
Backup requested.
No path specified. Will use /var/lib/ambari-server/Ambari_State_Backup.zip
Backup process initiated.
Creating zip file...
Zip file created at /var/lib/ambari-server/Ambari_State_Backup.zip
Backup complete.
Ambari Server 'backup' completed successfully.

ACTUAL RESULT : Backup fails with error:

[root@sandbox ~]# ambari-server backup
Using python /usr/bin/python
Backing up Ambari File System state... *this will not backup the server database* 
No path specified. Will use /var/lib/ambari-server/Ambari_State_Backup.zip
Backup requested. 
Backup process initiated. 
Creating zip file... 
A problem occurred while unzipping. Details: Zipfile size would require ZIP64 extensions 
Could not create zip file. Details: Zipfile size would require ZIP64 extensions 

SOLUTION/WORKAROUND:

In the script :/usr/lib/python2.6/site-packages/ambari_server/BackupRestore.py

Comment out the line :

zipf = zipfile.ZipFile(self.zip_folder_path + self.zipname, 'w')

And add:

zipf = zipfile.ZipFile(self.zip_folder_path + self.zipname, 'w',allowZip64 = True) 

Issue Links

• links to: Review Board