Memory usage

[andyzasl]

Hi!
I'm using prometheus-nginxlog-exporter-1.8.0-1.x86_64
and found memory usage is about 2G, that is very high for 4Gb system.
Is there any way to limit usage?

[martin-helmich]

In most observations of increased memory consumption, the cause was an increased number of exported metrics, often caused by sub-optimal configuration. Have a look at #199 (in particular, #199 (comment)) for more information.

[andyzasl]

In my case this is caused by keeping about 500k request_uri strings in memory.
Is there any reason, why exporter keep it?
I wonder if there is any setting, like time_to_keep_in_memory, to let exporter free "old" data.