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formatparameter for input plugins (ex: in_tail, in_syslog, in_tcp and in_udp) cannot parse the user's custom data format (for example, a context-dependent grammar that can't be parsed with a regular expression). To address such cases. Fluentd has a pluggable system that enables the user to create their own parser formats.
Here is a simple example to read Nginx access logs using
If you are familiar with grok patterns, grok-parser plugin is useful. Use
< 1.0.0versions for fluentd v0.12.