NAME

       varnishtop - Varnish log entry ranking

SYNOPSIS

       varnishtop  [-1] [-b] [-C] [-c] [-d] [-f] [-I regex] [-i tag] [-n varnish_name] [-r file] [-V] [-X regex]
       [-x tag]

DESCRIPTION

       The varnishtop utility reads varnishd(1) shared memory logs and presents a continuously updated  list  of
       the most commonly occurring log entries.  With suitable filtering using the -I, -i, -X and -x options, it
       can  be  used to display a ranking of requested documents, clients, user agents, or any other information
       which is recorded in the log.

       The following options are available:

       -1     Instead of presenting of a continuously updated display,  print  the  statistics  once  and  exit.
              Implies -d.

       -b     Include  log  entries which result from communication with a backend server.  If neither -b nor -c
              is specified, varnishtop acts as if they both were.

       -C     Ignore case when matching regular expressions.

       -c     Include log entries which result from communication with a  client.   If  neither  -b  nor  -c  is
              specified, varnishtop acts as if they both were.

       -d     Process  old  log  entries  on  startup.  Normally, varnishtop will only process entries which are
              written to the log after it starts.

       -f     Sort and group only on the first field of each log entry.  This is  useful  when  displaying  e.g.
              stataddr entries, where the first field is the client IP address.

       -I regex
              Include  log  entries  which  match  the  specified  regular  expression.  If neither -I nor -i is
              specified, all log entries are included.

       -i tag Include log entries with the specified tag.  If neither -I nor -i is specified,  all  log  entries
              are included.

       -p period
              Specifies  the  number  of seconds to measure over, the default is 60 seconds. The first number in
              the list is the average number of requests seen over this time period.

       -n     Specifies the name of the varnishd instance to get logs from.  If -n is not  specified,  the  host
              name is used.

       -r file
              Read log entries from file instead of shared memory.

       -V     Display the version number and exit.

       -X regex
              Exclude log entries which match the specified regular expression.

       -x tag Exclude log entries with the specified tag.

EXAMPLES

       The following example displays a continuously updated list of the most frequently requested URLs:

          varnishtop -i RxURL

       The following example displays a continuously updated list of the most commonly used user agents:

          varnishtop -i RxHeader -C -I ^User-Agent

SEE ALSO

       • varnishd(1)

       • varnishhist(1)

       • varnishlog(1)

       • varnishncsa(1)

       • varnishstat(1)

HISTORY

       The  varnishtop utility was originally developed by Poul-Henning Kamp in cooperation with Verdens Gang AS
       and Varnish Software AS, and later substantially rewritten by Dag-Erling Smørgrav.  This manual page  was
       written by Dag-Erling Smørgrav.

COPYRIGHT

       This document is licensed under the same licence as Varnish itself. See LICENCE for details.

       • Copyright (c) 2006 Verdens Gang AS

       • Copyright (c) 2006-2011 Varnish Software AS

AUTHOR

       Dag-Erling Smørgrav

1.0                                                2010-05-31                                      VARNISHTOP(1)