Logstash stops when running as a service on Redhat

Elastic Stack Logstash
1

Hi,

I am running Logstash as a service on Redhat with the command 'systemctl start logstash'. I am sending logs to Elasticsearch using http output plugin. It worked for some time, but later it is stopped with the following error.

[2017-11-29T20:21:35,949][DEBUG][logstash.pipeline        ] Closing inputs
[2017-11-29T20:21:35,949][DEBUG][logstash.inputs.http     ] stopping {:plugin=>"LogStash::Inputs::Http"}
[2017-11-29T20:21:35,952][DEBUG][logstash.inputs.http     ] closing {:plugin=>"LogStash::Inputs::Http"}
[2017-11-29T20:21:35,952][DEBUG][logstash.pipeline        ] Input plugins stopped! Will shutdown filter/output workers.
[2017-11-29T20:21:35,953][DEBUG][logstash.pipeline        ] Closed inputs
[2017-11-29T20:21:35,954][DEBUG][logstash.pipeline        ] Pushing flush onto pipeline
[2017-11-29T20:21:35,956][DEBUG][logstash.pipeline        ] Pushing shutdown {:thread=>"#<Thread:0x750f5106 sleep>"}
[2017-11-29T20:21:35,956][DEBUG][logstash.pipeline        ] Pushing shutdown {:thread=>"#<Thread:0xa4ee6b7 run>"}
[2017-11-29T20:21:35,956][DEBUG][logstash.pipeline        ] Pushing shutdown {:thread=>"#<Thread:0x31b073c7 sleep>"}
[2017-11-29T20:21:35,956][DEBUG][logstash.pipeline        ] Pushing shutdown {:thread=>"#<Thread:0x4bccd06d sleep>"}
[2017-11-29T20:21:35,956][DEBUG][logstash.pipeline        ] Shutdown waiting for worker thread #<Thread:0x750f5106>
[2017-11-29T20:21:35,985][DEBUG][logstash.pipeline        ] Shutdown waiting for worker thread #<Thread:0xa4ee6b7>
[2017-11-29T20:21:35,997][DEBUG][logstash.pipeline        ] Shutdown waiting for worker thread #<Thread:0x31b073c7>
[2017-11-29T20:21:36,016][DEBUG][logstash.pipeline        ] Shutdown waiting for worker thread #<Thread:0x4bccd06d>
[2017-11-29T20:21:36,019][DEBUG][logstash.filters.mutate  ] closing {:plugin=>"LogStash::Filters::Mutate"}
[2017-11-29T20:21:36,019][DEBUG][logstash.outputs.elasticsearch] closing {:plugin=>"LogStash::Outputs::ElasticSearch"}
[2017-11-29T20:21:36,019][DEBUG][logstash.outputs.elasticsearch] Stopping sniffer
[2017-11-29T20:21:36,019][DEBUG][logstash.outputs.elasticsearch] Stopping resurrectionist
[2017-11-29T20:21:36,748][DEBUG][logstash.outputs.elasticsearch] Waiting for in use manticore connections
[2017-11-29T20:21:36,748][DEBUG][logstash.outputs.elasticsearch] Closing adapter #<LogStash::Outputs::ElasticSearch::HttpClient::ManticoreAdapter:0x4f521bd3>
[2017-11-29T20:21:36,749][DEBUG][logstash.outputs.file    ] closing {:plugin=>"LogStash::Outputs::File"}
[2017-11-29T20:21:36,749][DEBUG][logstash.outputs.file    ] Close: closing files
[2017-11-29T20:21:36,750][DEBUG][logstash.outputs.file    ] Closed file /tmp/logstash/indicesoutput.log {:fd=>#<IOWriter:0x1a260612 @active=true, @io=#<File:/tmp/logstash/indicesoutput.log (closed)>>}
[2017-11-29T20:21:36,750][DEBUG][logstash.outputs.elasticsearch] closing {:plugin=>"LogStash::Outputs::ElasticSearch"}
[2017-11-29T20:21:36,750][DEBUG][logstash.outputs.elasticsearch] Stopping sniffer
[2017-11-29T20:21:36,750][DEBUG][logstash.outputs.elasticsearch] Stopping resurrectionist
[2017-11-29T20:21:36,845][DEBUG][logstash.outputs.elasticsearch] Waiting for in use manticore connections
[2017-11-29T20:21:36,845][DEBUG][logstash.outputs.elasticsearch] Closing adapter #<LogStash::Outputs::ElasticSearch::HttpClient::ManticoreAdapter:0x2486db4d>
[2017-11-29T20:21:36,845][DEBUG][logstash.pipeline        ] Pipeline main has been shutdown
2

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