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varnishlog

BSD mandoc

NAME

varnishlog - HTTP accelerator log watcher

SYNOPSIS

[-a ] [-b ] [-C ] [-c ] [-d ] [-I regex ] [-i tag ] [-o ] [-r file ] [-V ] [-w file ] [-X regex ] [-x tag ] [tag regex ]

DESCRIPTION

The utility reads and presents varnishd(1) shared memory logs.

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 backend server. If neither -b nor -c is specified, 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, acts as if they both were.

-d

Process old log entries on startup. Normally, will only process entries which are written to the log after it starts.

-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.

-o

Group log entries by request ID. This has no effect when writing to a file using the -w option.

-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 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 expression.

-x tag

Exclude log entries with the specified tag.

If the -o option was specified, an additional tag and regex may be specified to select only requests which generated a log entry with the given tag whose contents match the given regex

TAGS

The following log entry tags are currently defined:

Backend

BackendClose

BackendOpen

BackendReuse

BackendXID

CLI

ClientAddr

Debug

Error

ExpBan

ExpKill

ExpPick

Hit

HitPass

HttpError

HttpGarbage

Length

ObjHeader

ObjLostHeader

ObjProtocol

ObjRequest

ObjResponse

ObjStatus

ObjURL

ReqEnd

ReqStart

RxHeader

RxLostHeader

RxProtocol

RxRequest

RxResponse

RxStatus

RxURL

SessionClose

SessionOpen

StatAddr

StatSess

TTL

TxHeader

TxLostHeader

TxProtocol

TxRequest

TxResponse

TxStatus

TxURL

VCL_acl

VCL_call

VCL_return

VCL_trace

WorkThread

EXAMPLES

The following command line simply copies all log entries to a log file:

 $ varnishlog -w /var/log/varnish.log
 

The following command line reads that same log file and displays requests for the front page:

 $ varnishlog -r /var/log/varnish.log -c -o RxURL '^/$'
 

SEE ALSO

varnishd(1), varnishhist(1), varnishncsa(1), varnishstat(1), varnishtop(1)

HISTORY

The utility was developed by An Poul-Henning Kamp Aq phk@phk.freebsd.dk in cooperation with Verdens Gang AS and Linpro AS. This manual page was written by An Dag-Erling Smørgrav Aq des@linpro.no .