# Processing events on logstash-forwarder only 3.2k events/second

**URL:** <https://discuss.elastic.co/t/processing-events-on-logstash-forwarder-only-3-2k-events-second/42833>\
**Category:** Logstash\
**Created:** [February 26, 2016, 9:28am UTC](https://discuss.elastic.co/t/processing-events-on-logstash-forwarder-only-3-2k-events-second/42833 "2016-02-26T09:28:38Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![junior\_h](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@junior\_h](https://discuss.elastic.co/u/junior_h)\
**Post date:** [February 26, 2016, 9:28am UTC](https://discuss.elastic.co/t/processing-events-on-logstash-forwarder-only-3-2k-events-second/42833/1 "2016-02-26T09:28:38Z")

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I am using logstash-forwarder to send nginx access.log with flow:  
access.log -\> logstash-forwarder 0.4.0-\> logstash 1.5.4 -\> redis 3.0.1

The logstash only run for storing data to redis. Due to high activity on nginx, data on access.log increase rapidly and unfortunately logstash-forwarder can't catch up the log. Logstash-forwarder is running with params "-spool-size 32768 -log-to-syslog -harvest-buffer-size 1024". From syslog, processing rate is 32k events/10second (3.2K/second)

# ==== Feb 26 04:13:16 host1 logstash-forwarder[20374]: 2016/02/26 16:13:16.586663 Registrar: processing 32768 events Feb 26 04:13:26 host1 logstash-forwarder[20374]: 2016/02/26 16:13:26.480681 Registrar: processing 32768 events Feb 26 04:13:36 host1 logstash-forwarder[20374]: 2016/02/26 16:13:36.707035 Registrar: processing 32768 events

Here, the bottle neck is logstash-forwarder beacuse I don't see any bottle neck on network, disk & CPU in servers. Anyone has same issue?

Please your advice

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [February 26, 2016, 11:25pm UTC](https://discuss.elastic.co/t/processing-events-on-logstash-forwarder-only-3-2k-events-second/42833/2 "2016-02-26T23:25:01Z")

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I'd move to filebeat, as LSF is deprecated.  
Also try upgrading your LS instance.

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**Author:** ![junior\_h](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@junior\_h](https://discuss.elastic.co/u/junior_h)\
**Post date:** [February 29, 2016, 5:51am UTC](https://discuss.elastic.co/t/processing-events-on-logstash-forwarder-only-3-2k-events-second/42833/3 "2016-02-29T05:51:53Z")

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Thanks for suggestion, I wiill try it !

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 5:09am UTC](https://discuss.elastic.co/t/processing-events-on-logstash-forwarder-only-3-2k-events-second/42833/4 "2017-07-06T05:09:28Z")

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