VARNISHLOG(1)VARNISHLOG(1)NAMEvarnishlog - Display Varnish logs
SYNOPSISvarnishlog [-a] [-A] [-b] [-c] [-C] [-d] [-D] [-g <ses‐
sion|request|vxid|raw>] [-h] [-i taglist] [-I <[taglist:]regex>] [-k
num] [-L limit] [-n name] [-N filename] [-P file] [-q query] [-r file‐
name] [-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 syn‐
thesized when this happens. This setting keeps an upper bound on
the memory usage of running queries. Defaults to 1000 transac‐
tions.
-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 connec‐
tion will not fail, allowing the utility to start and wait inde‐
finetely for the Varnish instance to appear. Defaults to 5 sec‐
onds.
-T seconds
Sets the transaction timeout in seconds. This defines the maxi‐
mum 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 speci‐
fied. 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)
