IJ02897: GPFS.SNAP FAILS ON TAR'ING CHANGING LOGS

APAR status

• Closed as program error.

Error description

• During run of the gpfs.snap, when tarring up the gathered
  logs on the remote nodes, the snap fails with messages
  like
  the following :
      ...
      /bin/tar:
  smb.snap.xxxxxxx.20171220_115034/var/lib/samba/smbprofile
  .tdb: file changed as we read it
  
      gpfs.snap: Failed while creating the tar file
  /tmp/gpfs.snapOut/28480/collect/gpfs.snap.xxxxxxxxx_maste
  r_1220115009.out.tar.gz.
  
      gpfs.snap: Command failed. Examine previous error
  messages to determine cause.
  
  No output file will be generated. gpfs.snap fails
  
  Known Impact:
  gpfs.snap fails to create output file to be sent to IBM
  
  Verification steps:
  generate a high volume of changes to one logfile which is
  being transferred with the snap data.
  
  Recovery action:
  re-run gpfs.snap with less activity on the mentioned
  logfile.
  

Local fix

• edit /usr/lpp/mmfs/bin/gpfs.snap,  search for "function
  tarIt"
          and comment out the line nearly at the end :
          change
       if [[ -n $onErrorExit && $onErrorExit = $MMTRUE &&
  $rc ]= 0 ]]
        then
          print -u2 -- "\n$mmcmd: Failed while creating the
  tar file
          $outputFile."
          cleanupAndExit $rc
        fi
      to
       if [[ -n $onErrorExit && $onErrorExit = $MMTRUE &&
  $rc ]= 0 ]]
        then
          print -u2 -- "\n$mmcmd: Failed while creating the
  tar file
          $outputFile."
       #    cleanupAndExit $rc
        fi
  

Problem summary

• Sometimes gpfs.snap stops with an error message, especially
  if it collects log data which gets appends during the creation
  of the tar file.
  

Problem conclusion

• On linux OS treat rc 1 (warning) as rc 0 after logging a
  message.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  IJ03847

Fix information

• Fixed component name

  SPECTRUM SCALE

• Fixed component ID

  5725Q01AP

Applicable component levels