NetWorker: NMC response slows down or stops responding due to large stat.db

Summary: NMC response slows down and or stops responding.

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Symptoms

  • NetWorker Management Console (NMC) response slows down or stops responding.
  • The top command, or Windows Task Manager "Details" tab shows the process nsrsqliteasm occupies 99% CPU resource when the NMC stops responding

Cause

The stat.db on the NetWorker server is large (for example, several GB):

  • Linux: /nsr/res/statistics/stat.db
  • Windows (Default): C:\Program Files\EMC NetWorker\nsr\res\statistics\stat.db

Resolution

The following process removes the NetWorker server's corrupted storage node resources and re-creates a new storage node resource:

  1. Perform a Server Protection -> Server backup.
    1. If the NMC is not functional, run the following command from an elevated prompt on the NetWorker server: nsrpolicy start -p "Server Protection" -w "Server backup"
    2. Monitor the backup session using the nsrwatch command.
  2. From an elevated prompt on the NetWorker server, collect bootstrap details: mminfo -B
  3. Stop NetWorker services:
  • Linux: nsr_shutdown or systemctl stop networker
  • Windows: net stop nsrd
    1. Delete or rename the stat.db file:
    • Linux: /nsr/res/statistics/stat.db
    • Windows (Default): C:\Program Files\EMC NetWorker\nsr\res\statistics\stat.db
    1. Rename the daemon.raw file:
    • Linux: /nsr/logs/daemon.raw
    • Windows (default): C:\Program Files\EMC NetWorker\nsr\logs\daemon.raw
    1. Start NetWorker again:
    • Linux: systemctl start networker
    • Windows: net start nsrd
      • If the Windows NetWorker server is also the NetWorker Management Console (NMC) server, run: net start gstd

    Additional Information

    Affected Products

    NetWorker, NetWorker Management Console

    Products

    NetWorker Family
    Article Properties
    Article Number: 000193506
    Article Type: Solution
    Last Modified: 13 Feb 2026
    Version:  2
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