Add details about why not all logstash patterns are supported (#3971)

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Scott Anderson 2018-04-04 15:42:58 -06:00 committed by Daniel Nelson
parent f38d7f1a5b
commit f692f656fd
1 changed files with 4 additions and 3 deletions

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@ -108,10 +108,11 @@ CUSTOM time layouts must be within quotes and be the representation of the
"reference time", which is `Mon Jan 2 15:04:05 -0700 MST 2006`
See https://golang.org/pkg/time/#Parse for more details.
Telegraf has many of its own
[built-in patterns](./grok/patterns/influx-patterns),
as well as supporting
Telegraf has many of its own [built-in patterns](./grok/patterns/influx-patterns),
as well as support for most of
[logstash's builtin patterns](https://github.com/logstash-plugins/logstash-patterns-core/blob/master/patterns/grok-patterns).
_Golang regular expressions do not support lookahead or lookbehind.
logstash patterns that depend on these are not supported._
If you need help building patterns to match your logs,
you will find the https://grokdebug.herokuapp.com application quite useful!