Troubleshooting the DPSS

Lawrence Berkeley National Laboratory, Data Intensive Distributed Computing Project

General troubleshooting

If you have trouble connecting to the DPSS, do the following:

First, try restarting the DPSS and/or DSM 

	
	dpss_restart master_hostname
	dpss_restart server_1_hostname
	dpss_restart server_2_hostname
	etc
WARNING: Make sure no one else is using the DPSS when you do this!!

Troubleshooting from client application

If you see something about a library not being found when invoking application, check the following:

On OSF, make sure that

  1. /usr/shlib contains the shared objects that are listed as not being found. A good way to do this is make symlinks to the actual locations of the libraries which may be in /usr/local//lib somewhere.
  2. OR that the shared objects are installed in /usr/local/lib.

Trouble starting the DSM

If your DSM database is an NFS mounted file, you may occasionally see this error when trying to restart the DSM: 

      gdbm_open of /usr/local/DPSS/db/dsm/dsmdb returned 0
      gdbm error: Can't be writer
      check if another DSM has is running somewhere
If you get this, and know there is not another DSM running, then do the following: 
     cd $DPSSHOME/db/dsm
     cp dsmdb dsmdb.save
     rm dsmdb
     dsm_restart dpsshost
     dsm_stop dpsshost
     cp dsmdb.save dsmdb
     dsm_restart dpsshost

COPYRIGHT NOTICE: Distributed Parallel Storage System and DPSS/ISS are Copyright © 1994 by Lawrence Berkeley Laboratory

This page is the resonsiblity of Brian L. Tierney. (BLTierney@lbl.gov). Support Credits are here. This document and its uses are subject to LBL's disclaimers and legal notices.

Credits: The research and development of the Distributed Systems Department i s funded by the U.S. Dept. of Energy, Office of Science, Office of Advanced Scie ntific Computing Research, Mathematical, Information, and Computational Sciences Division

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This page last modified: Thursday, 08-Apr-1999 17:34:13 PDT