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  <dir>]  [-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     Process log records at the head of the log and exit.

       -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 <dir>
              Specify the varnishd working directory (also known as instance name)  to  get  logs
              from. If -n is not specified, the host name is used.

       -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)