varnishtop(1) - Linux man page

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.

-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 Linpro 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 © 2006 Verdens Gang AS

• Copyright © 2006-2008 Linpro AS

• Copyright © 2008-2010 Redpill Linpro AS

• Copyright © 2010 Varnish Software AS

Author

Dag-Erling Smørgrav

Referenced By

varnishsizes(1), varnishtest(1)