The NetBackup 7.5.0.x master server appears to "freeze;" administration console hangs as some commands hang indefinitely.

Article:TECH204938  |  Created: 2013-04-10  |  Updated: 2013-07-01  |  Article URL
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Technical Solution


The master server appears to "freeze." 

The condition described in this document can be seen when ALL of the following conditions have been met:

  • NetBackup Java/non-Java administration console hangs when selecting Storage Units, Lifecycle Policies, etc.
  • Command line execution of nbemmcmd and bpstulist commands (for example) hang indefinitely without reporting output
  • Restarting the NetBackup Enterprise Media Manager (nbemm) service does not help.
  • Sybase SQLAnywhere has NOT run out of cache per server.log


This issue affects NetBackup 7.5 through master servers.


The root cause is multifaceted:

  • NetBackup nbdb database/query issue
  • NetBackup environment and/or configuration resulting in heavy load
  • Possibly underpowered/underprovisioned master server hardware



The formal resolution for this issue (ETrack 3124700) is included in the following release:

  • NetBackup 7.5 Maintenance Release 6 (

NetBackup is now available - please access the Related Article below for more information.

Please contact Symantec technical support, referencing this document and Etrack 3206707 to obtain an Emergency Engineering Binary (EEB) bundle containing a fix for this issue for NetBackup

Supplemental Materials


Port transaction splitting change to 7.5.0.X


Requesting assistance removing incremental TIR data from customers environment.  This is a binary bundle. This resolves the following problems: 

  • ET 3206707  The compression phase of catalog cleanup is being blocked by the true-image-restore-pruning phase. This EEB allows the pruning phase of one cleanup job to run concurrently with the compression phase of another cleanup job. Both can run during catalog backups. 
  • ET 3123528  Port transaction splitting change to 7.5.0.X
  • ET 3156468  Allows backups to be marked eligible for pruning.


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