varnishlog-json¶
Display Varnish logs in JSON format¶
Manual section: | 1 |
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SYNOPSIS¶
varnishlog [-b] [-c] [-C] [-d] [-D] [-E] [-g <session|request|vxid|raw>] [-h] [-i <taglist>] [-I <[taglist:]regex>] [-k <num>] [-L <limit>] [-n <dir>] [-p] [-P <file>] [-Q <file>] [-q <query>] [-r <filename>] [-R <limit[/duration]>] [-t <seconds|off>] [-T <seconds>] [-V] [-x <taglist>] [-X <[taglist:]regex>]
OPTIONS¶
The following options are available:
-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. |
-E | Display ESI transactions and other types of sub-requests. This implies the -c option and includes other client transactions. |
-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. 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. | |
-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 | Pretty-print transactions rather than using NDJSON |
-P <file> | Write the process’ PID to the specified file. |
-Q <file> | Specifies the file containing the VSL query to use. When multiple -Q or -q options are specified, all queries are considered as if the ‘or’ operator was used to combine them. |
-q <query> | Specifies the VSL query to use. When multiple -q or -Q options are specified, all queries are considered as if the ‘or’ operator was used to combine them. |
-r <filename> | Read log in binary file format from this file. The file can be created with varnishlog -w filename . |
-R <limit[/duration]> | |
Restrict the output to the specified limit. Transactions exceeding the limit will be suppressed. The limit is specified as the maximum number of transactions (with respect to the chosen grouping method) and an optional time period. If no duration is specified, a default of s is used. The duration field can be formatted as in VCL (e.g. -R 10/2m ) or as a simple time period without the prefix (e.g. -R 5/m ). When in -g raw grouping mode, this setting can not be used alongside -i , -I , -x or -X , and we advise using -q instead. | |
-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 | Print version information and exit. |
-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. Multiple -X options may be given. | |
--optstring | Print the optstring parameter to getopt(3) to help writing wrapper scripts. |
SIGNALS¶
SIGHUP
Rotate the log file (see -w option)
SIGUSR1
Flush any outstanding transactions