# Logstash not producing logs

**URL:** <https://discuss.elastic.co/t/logstash-not-producing-logs/198431>\
**Category:** Logstash\
**Created:** [September 6, 2019, 1:51pm UTC](https://discuss.elastic.co/t/logstash-not-producing-logs/198431 "2019-09-06T13:51:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Rachit\_Gargava](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rachit_gargava/32/46899_2.png) [@Rachit\_Gargava](https://discuss.elastic.co/u/Rachit_Gargava)\
**Post date:** [September 6, 2019, 1:51pm UTC](https://discuss.elastic.co/t/logstash-not-producing-logs/198431/1 "2019-09-06T13:51:45Z")

</div>

command which I am executing: ./logstash -f Logstash.conf  
Logstash.conf has below content:

input {  
file {  
path =\> "/tibco/tra/domain/TST36/application/logs/B2BHFAMAdapter-TST36V3B2BHFAMAdapterNewTST36-050000-1.log"  
}  
}  
output {  
file {  
path =\> "/tibco/Logstash/outlog.log"  
}  
}

The console output is as below:  
[tibadmin@sz3072 bin]$ ./logstash -f Logstash.conf  
Thread.exclusive is deprecated, use Thread::Mutex  
Sending Logstash logs to /tibco/Logstash/logstash-7.3.1/logs which is now configured via log4j2.properties  
[2019-09-06T15:36:43,550][WARN][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified  
[2019-09-06T15:36:43,573][INFO][logstash.runner] Starting Logstash {"logstash.version"=\>"7.3.1"}  
[2019-09-06T15:36:45,712][INFO][org.reflections.Reflections] Reflections took 77 ms to scan 1 urls, producing 19 keys and 39 values  
[2019-09-06T15:36:46,820][WARN][org.logstash.instrument.metrics.gauge.LazyDelegatingGauge] A gauge metric of an unknown type (org.jruby.RubyArray) has been create for key: cluster\_uuids. This may result in invalid serialization. It is recommended to log an issue to the responsible developer/development team.  
[2019-09-06T15:36:46,828][INFO][logstash.javapipeline] Starting pipeline {:pipeline\_id=\>"main", "pipeline.workers"=\>40, "pipeline.batch.size"=\>125, "pipeline.batch.delay"=\>50, "pipeline.max\_inflight"=\>5000, :thread=\>"#\<Thread:0x640616ce run\>"}  
[2019-09-06T15:36:47,510][INFO][logstash.inputs.file] No sincedb\_path set, generating one based on the "path" setting {:sincedb\_path=\>"/tibco/Logstash/logstash-7.3.1/data/plugins/inputs/file/.sincedb\_b51ceb84388504f6fa7075c67a63ad57", :path=\>["/tibco/tra/domain/TST36/application/logs/B2BHFAMAdapter-TST36V3B2BHFAMAdapterNewTST36-050000-1.log"]}  
[2019-09-06T15:36:47,571][INFO][logstash.javapipeline] Pipeline started {"pipeline.id"=\>"main"}  
[2019-09-06T15:36:47,684][INFO][logstash.agent] Pipelines running {:count=\>1, :running\_pipelines=\>[:main], :non\_running\_pipelines=\>}  
[2019-09-06T15:36:47,696][INFO][filewatch.observingtail] START, creating Discoverer, Watch with file and sincedb collections  
[2019-09-06T15:36:48,328][INFO][logstash.agent] Successfully started Logstash API endpoint {:port=\>53680}

Please suggest what wring I am doing here ?

Thanks  
Rachit Gargava

---

<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [September 6, 2019, 2:01pm UTC](https://discuss.elastic.co/t/logstash-not-producing-logs/198431/2 "2019-09-06T14:01:55Z")

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By default a file input will skip to the end of a file and wait for new data to be appended to it. If you want to read an existing file you need the start\_position option, and possibly the sincedb\_path option.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [October 4, 2019, 2:13pm UTC](https://discuss.elastic.co/t/logstash-not-producing-logs/198431/3 "2019-10-04T14:13:10Z")

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