Sol10 + OpenLDAP = excessive logging & full file system??!! Post: 302786489

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Operating Systems Solaris Sol10 + OpenLDAP = excessive logging & full file system??!! Post 302786489 by Wraith_G2IC on Wednesday 27th of March 2013 02:20:19 PM

03-27-2013

Registered User

Quote:

Originally Posted by jlliagre

What are these 50m files created every minute (do you really mean 50 million files created every minute or 50 MB of new logs every minute ?)
In any case, why don't you post a sample of these logs ?
Are you doing snapshots of the file system containing the logs ?

Thanks for the reply.

These are log files created automatically for the purpose of auto-recovering the LDAP from a failure. In most systems I have, there are just 2 - 6 files (50mb each) in the logs dir. These files are 50mb due to the "Transaction Log Settings" in the DB_CONFIG. Increasing / decreasing the configured size has no affect on the problem. These files normally "track" changes made to LDAP DB via the Berkeley DB (BDB). The problem is, these files are not human readable, and it is on an isolated system not connected to the internet (IE: we are not allowed to post files). These log files are "usually" automatically cleaned up by a statement in the conf file:

set_flags DB_LOG_AUTOREMOVE

This setting works on every other system we have, with the exception of this T4-1.

No, there are no snapshots being done. It is on a raidz2 zfs file-system, but that shouldn't matter..

It has been suggested by some folks @ OpenLDAP that the older version of BDB -v4.7 is the issue. I have to claim partial ignorance to that statement since we don't use BDB for anything, but to support OpenLDAP.

Wraith_G2IC

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bdb.db0

BDB.DB0(5)							AFS File Reference							BDB.DB0(5)

NAME

       bdb.DB0, bdb.DBSYS1 - Contain the Backup Database and associated log

DESCRIPTION

       The bdb.DB0 file contains the Backup Database, which records configuration information used by the AFS Backup System along with cross-
       indexed records of the tapes created and volumes dumped using the Backup System commands.

       The bdb.DBSYS1 file is a log file in which the Backup Server (buserver process) logs each database operation before performing it. When an
       operation is interrupted, the Backup Server replays the log to complete the operation.

       Both files are in binary format and reside in the /var/lib/openafs/db directory on each database server machine that runs the Backup
       Server.	When the Backup Server starts or restarts on a given machine, it establishes a connection with its peers and verifies that its
       copy of the bdb.DB0 file matches the copy on the other database server machines. If not, the Backup Servers use AFS's distributed database
       technology, Ubik, to distribute to all of the machines the copy of the database with the highest version number.

       Use the commands in the backup suite to administer the Backup Database. It is advisable to create a backup copy of the bdb.DB0 file on tape
       on a regular basis, using the UNIX tar command or another local disk backup utility.

SEE ALSO

       backup(8), backup_savedb(8), buserver(8)

COPYRIGHT

       IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.

       This documentation is covered by the IBM Public License Version 1.0.  It was converted from HTML to POD by software written by Chas
       Williams and Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.

OpenAFS 							    2012-03-26								BDB.DB0(5)