VARNISHNCSA(1)VARNISHNCSA(1)NAMEvarnishncsa - Display Varnish logs in Apache / NCSA combined log format
SYNOPSISvarnishncsa [-a] [-b] [-C] [-c] [-D] [-d] [-f] [-F format] [-I regex]
[-i tag] [-n varnish_name] [-m tag:regex ...] [-P file] [-r file] [-V]
[-w file] [-X regex] [-x tag]
DESCRIPTION
The varnishncsa utility reads varnishd(1) shared memory logs and
presents them in the Apache / NCSA "combined" log format.
The following options are available:
-a When writing to a file, append to it rather than overwrite it.
-b Include log entries which result from communication with a back‐
end server. If neither -b nor -c is specified, varnishncsa 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, varnishncsa acts as
if they both were.
-D Daemonize.
-d Process old log entries on startup. Normally, varnishncsa will
only process entries which are written to the log after it
starts.
-f Prefer the X-Forwarded-For HTTP header over client.ip in the log
output.
-F format
Specify the log format used. If no format is specified the
default log format is used. Currently it is:
%h %l %u %t "%r" %s %b "%{Referer}i" "%{User-agent}i"
Supported formatters are:
%b Size of response in bytes, excluding HTTP headers. In
CLF format, i.e. a '-' rather than a 0 when no bytes
are sent.
%H The request protocol. Defaults to HTTP/1.0 if not
known.
%h Remote host. Defaults to '-' if not known. Defaults
to 127.0.0.1 for backend requests.
%{X}i The contents of request header line X.
%l Remote logname (always '-')
%m Request method. Defaults to '-' if not known.
%q The query string, if no query string exists, an empty
string.
%{X}o The contents of response header line X.
%r The first line of the request. Synthesized from other
fields, so it may not be the request verbatim.
%s Status sent to the client
%t Time when the request was received, in HTTP date/time
format.
%U The request URL without any query string. Defaults to
'-' if not known.
%u Remote user from auth
%{X}x Extended variables. Supported variables are:
Varnish:time_firstbyte
Time to the first byte from the backend
arrived
Varnish:hitmiss
Whether the request was a cache hit or
miss. Pipe and pass are considered misses.
Varnish:handling
How the request was handled, whether it was
a cache hit, miss, pass, pipe or error.
-m tag:regex only list records where tag matches regex. Multiple
-m options are AND-ed together.
-n Specifies the name of the varnishd instance to get logs from.
If -n is not specified, the host name is used.
-P file
Write the process's PID to the specified file.
-r file
Read log entries from file instead of shared memory.
-V Display the version number and exit.
-w file
Write log entries to file instead of displaying them. The file
will be overwritten unless the -a option was specified.
If varnishncsa receives a SIGHUP while writing to a file, it
will reopen the file, allowing the old one to be rotated away.
-X regex
Exclude log entries which match the specified regular expres‐
sion.
-x tag Exclude log entries with the specified tag.
If the -o option was specified, a tag and a regex argument must be
given. varnishncsa will then only log for request groups which include
that tag and the regular expression matches on that tag.
SEE ALSO
· varnishd(1)
· varnishhist(1)
· varnishlog(1)
· varnishstat(1)
· varnishtop(1)HISTORY
The varnishncsa utility was developed by Poul-Henning Kamp in coopera‐
tion with Verdens Gang AS and Varnish Software AS. This manual page
was written by Dag-Erling Smørgrav ⟨des@des.no⟩.
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 VARNISHNCSA(1)
