Forum Discussion

Bigenthy's avatar
Bigenthy
Level 3
11 years ago

NetBackup Master Hangs due to abnormal use of swap space.

He have one master server in the customer netbackup environment but we we noticed that some days the swap space increased and the master hangs. 
We are obliged to reboot the server. The version of NetBackup Software is 7.1.0.4. The server is a SUN Sparc T5220 (32 GB of Memory). I need solution.

Thanks

Ekra Thierry

7.1.x and Earlier
Backing Up
Backup and Recovery
Certification
Configuring
Downloads
Installing
NetBackup
News
Performance
  • SymTerry's avatar
    SymTerry
    11 years ago

    Try swap -s. Your getting "no swap space to grow", this means you're out of memory. The "swap -s" command will list the size of virtual swap. (Physical swap added to the physical memory) On systems with plenty of memory, like yours, "swap -l" will show little or no swap space use but "swap -s" might give a better pictiure of swap space used. 

9 Replies

Sort By
Replies have been turned off for this discussion
  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    This is why I suggested using 'top' to always run in a terminal session.

  • rk1074's avatar
    rk1074
    Level 6
    11 years ago

    Check if multiple bpdbm processes are running.. They often cause the swap space utilisation to peak.

     

  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    Please download and install 'top' utility to see which process (or processes) is top of the list for memory usage.

  • Bigenthy's avatar
    Bigenthy
    Level 3
    11 years ago

    Hi, 

    Thanks fot your reply. the are the messages before the server hangs 

    Apr 16 19:09:37 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21850 (nbsvcmon)
    Apr 16 19:09:38 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21848 (nbsvcmon)
    Apr 16 19:09:38 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21850 (nbsvcmon)
    Apr 16 19:09:39 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21848 (nbsvcmon)
    Apr 16 19:09:41 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21855 (nbsvcmon)
    Apr 16 19:09:46 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21862 (nbsvcmon)
    Apr 16 19:09:47 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21861 (nbsvcmon)
    Apr 16 19:09:49 Veritasmaster sshd[1016]: [ID 800047 auth.error] error: fork: Espace insuffisant
    Apr 16 19:09:51 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21867 (nbsvcmon)
    Apr 16 19:09:52 Veritasmaster genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 21864 (nbsvcmon)

     

    Thanks, 

    Ekra Thierry

  • Marianne's avatar
    Marianne
    Level 6
    11 years ago
    Have you tried the top command yet to monitor memory usage? What is swap size on the master? Has shared memory been tuned on the master?
  • Bigenthy's avatar
    Bigenthy
    Level 3
    11 years ago

    Hi Marianne, 

     

    The swap space is 320 GB. The server hangs aleatory. 

  • SymTerry's avatar
    SymTerry
    Level 6
    11 years ago

    Try swap -s. Your getting "no swap space to grow", this means you're out of memory. The "swap -s" command will list the size of virtual swap. (Physical swap added to the physical memory) On systems with plenty of memory, like yours, "swap -l" will show little or no swap space use but "swap -s" might give a better pictiure of swap space used.