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LEARN ABOUT DEBIAN

trimhistory

TRIMHISTORY(8)						      System Manager's Manual						    TRIMHISTORY(8)

NAME

       trimhistory - Remove old Xymon history-log entries

SYNOPSIS

       trimhistory --cutoff=TIME [options]

DESCRIPTION

       The  trimhistory  tool  is  used  to  purge old entries from the Xymon history logs. These logfiles accumulate information about all status
       changes that have occurred for any given service, host, or the entire Xymon system, and is used to generate the event- and history-log web-
       pages.

       Purging	old  entries  can  be done while Xymon is running, since the tool takes care not to commit updates to a file if it changes mid-way
       through the operation. In that case, the update is aborted and the existing logfile is left untouched.

       Optionally, this tool will also remove logfiles from hosts that are no longer defined in the Xymon bb-hosts(5) file. As an extension,  even
       logfiles from services can be removed, if the service no longer has a valid status-report logged in the current Xymon status.

OPTIONS

       --cutoff=TIME
	      This  defines  the  cutoff-time when processing the history logs. Entries dated before this time are discarded. TIME is specified as
	      the number of seconds since the beginning of the Epoch. This is easily generated by the GNU date(1) utility, e.g. the following com-
	      mand will trim history logs of all entries prior to Oct. 1st 2004:

		  trimhistory --cutoff=`date +%s --date="1 Oct 2004"`

       --outdir=DIRECTORY
	      Normally,  files	in  the  BBHIST  directory  are replaced. This option causes trimhistory to save the shortened history logfiles to
	      another directory, so you can verify that the operation works as intended. The output directory must exist.

       --drop Causes trimhistory to delete files from hosts that are not listed in the bb-hosts(5) file.

       --dropsvcs
	      Causes trimhistory to delete files from services that are not currently tracked  by  Xymon.  Normally  these  files  would  be  left
	      untouched if only the host exists.

       --droplogs
	      Process the BBHISTLOGS directory also, and delete status-logs from events prior to the cut-off time. Note that this can dramatically
	      increase the processing time, since there are often lots and lots of files to process.

       --progress[=N]
	      This will cause trimhistory to output a status line for every N history logs or status-log collections it processes, to indicate how
	      far it has progressed. The default setting for N is 100.

       --env=FILENAME
	      Loads the environment from FILENAME before executing trimhistory.

       --debug
	      Enable debugging output.

FILES

       $BBHIST/allevents
	      The eventlog of all events that have happened in Xymon.

       $BBHIST/HOSTNAME
	      The per-host eventlogs.

       $BBHIST/HOSTNAME.SERVICE
	      The per-service eventlogs.

       $BBHISTLOGS/*/*
	      The historical status-logs.

ENVIRONMENT VARIABLES

       BBHIST The directory holding all history logs.

       BBHISTLOGS
	      The top-level directory for the historical status-log collections.

       BBHOSTS
	      The location of the bb-hosts file, holding the list of currently known hosts in Xymon.

SEE ALSO

       xymon(7), bb-hosts(5)

Xymon							    Version 4.2.3:  4 Feb 2009						    TRIMHISTORY(8)

UNIX for Dummies Questions & Answers