NAME

       varnishlog - Display Varnish logs

SYNOPSIS

       varnishlog  [-a]  [-A]  [-b]  [-c]  [-C]  [-d] [-D] [-g <session|request|vxid|raw>] [-h] [-i taglist] [-I
       <[taglist:]regex>] [-k num] [-L limit] [-n name] [-N filename] [-P file] [-q  query]  [-r  filename]  [-t
       <seconds|off>] [-T seconds] [-v] [-V] [-w filename] [-x taglist] [-X <[taglist:]regex>]

OPTIONS

       The following options are available:

       -a     When writing output to a file with the -w option, append to it rather than overwrite it.

       -A     When writing output to a file with the -w option, output data in ascii format.

       -b     Only display transactions and log records coming from backend communication.

       -c     Only display transactions and log records coming from client communication.

       -C     Do all regular expression and string matching caseless.

       -d     Start processing log records at the head of the log instead of the tail.

       -D     Daemonize.

       -g <session|request|vxid|raw>
              The grouping of the log records. The default is to group by vxid.

       -h     Print program usage and exit

       -i taglist
              Include  log  records  of  these  tags  in output. Taglist is a comma-separated list of tag globs.
              Multiple -i options may be given.

              If a tag include option is the first of any tag selection  options,  all  tags  are  first  marked
              excluded.

       -I <[taglist:]regex>
              Include by regex matching. Output only records matching taglist and regular expression. Applies to
              any tag if taglist is absent.

              If  a  tag  include  option  is  the first of any tag selection options, all tags are first marked
              excluded.

       -k num Process this number of matching log transactions before exiting.

       -L limit
              Sets the upper limit of incomplete transactions  kept  before  the  oldest  transaction  is  force
              completed. A warning record is synthesized when this happens. This setting keeps an upper bound on
              the memory usage of running queries. Defaults to 1000 transactions.

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

       -N filename
              Specify the filename of a stale VSM instance. When using this option the abandonment  checking  is
              disabled.

       -P file
              Write the process' PID to the specified file.

       -q query
              Specifies the VSL query to use.

       -r filename
              Read  log  in  binary  file  format  from  this  file.  The file can be created with varnishlog -w
              filename.

       -t <seconds|off>
              Timeout before returning error on initial VSM connection. If set the  VSM  connection  is  retried
              every  0.5  seconds  for this many seconds. If zero the connection is attempted only once and will
              fail immediately if unsuccessful. If set to "off", the connection  will  not  fail,  allowing  the
              utility to start and wait indefinetely for the Varnish instance to appear.  Defaults to 5 seconds.

       -T seconds
              Sets  the  transaction  timeout  in  seconds.  This  defines the maximum number of seconds elapsed
              between a Begin tag and the End tag. If the timeout expires, a warning record is  synthesized  and
              the transaction is force completed. Defaults to 120 seconds.

       -v     Use verbose output on record set printing, giving the VXID on every log line. Without this option,
              the VXID will only be given on the header of that transaction.

       -V     Print version information and exit.

       -w filename
              Redirect  output  to file. The file will be overwritten unless the -a option was specified. If the
              application receives a SIGHUP in daemon mode the file will be  reopened allowing the old one to be
              rotated away. The file can then be read by varnishlog and other tools with the -r  option,  unless
              the -A option was specified. This option is required when running in daemon mode.

       -x taglist
              Exclude  log  records  of  these  tags  in output. Taglist is a comma-separated list of tag globs.
              Multiple -x options may be given.

       -X <[taglist:]regex>
              Exclude by regex matching. Do not output records matching taglist and regular expression.  Applies
              to any tag if taglist is absent.

SIGNALS

       • SIGHUP

         Rotate the log file (see -w option)

       • SIGUSR1

         Flush any outstanding transactions

SEE ALSO

       • varnishd(1)

       • varnishhist(1)

       • varnishncsa(1)

       • varnishstat(1)

       • varnishtop(1)

       • vsl(7)

       • vsl-query(7)

HISTORY

       The  varnishlog  utility  was  developed  by  Poul-Henning  Kamp <phk@phk.freebsd.dk> in cooperation with
       Verdens Gang AS and Varnish Software AS. This manual page was initially written by  Dag-Erling  Smørgrav,
       and later updated by Per Buer and Martin Blix Grydeland.

COPYRIGHT

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

       • Copyright (c) 2006 Verdens Gang AS

       • Copyright (c) 2006-2015 Varnish Software AS

                                                                                                   VARNISHLOG(1)