# Logstash fails to start the simplest pipeline

**URL:** <https://discuss.elastic.co/t/logstash-fails-to-start-the-simplest-pipeline/66307>\
**Category:** Logstash\
**Created:** [November 16, 2016, 9:10pm UTC](https://discuss.elastic.co/t/logstash-fails-to-start-the-simplest-pipeline/66307 "2016-11-16T21:10:37Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![letharion](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/letharion/32/13215_2.png) [@letharion](https://discuss.elastic.co/u/letharion)\
**Post date:** [November 16, 2016, 9:10pm UTC](https://discuss.elastic.co/t/logstash-fails-to-start-the-simplest-pipeline/66307/1 "2016-11-16T21:10:37Z")

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```
# java -version
openjdk version "1.8.0_111"
OpenJDK Runtime Environment (build 1.8.0_111-8u111-b14-2ubuntu0.16.04.2-b14)
OpenJDK 64-Bit Server VM (build 25.111-b14, mixed mode)

# bin/logstash --version
logstash 5.0.1

# time bin/logstash -e 'input { stdin { } } output { stdout {} }'
^C
real 4m34.311s
user 0m13.224s
sys 0m0.268s

# cat /etc/issue
Ubuntu 16.04.1 LTS \n \l

```

Freshly installed ubuntu VM, with logstash pulled in from the official deb packages as shown here: [https://www.elastic.co/guide/en/logstash/current/installing-logstash.html](https://www.elastic.co/guide/en/logstash/current/installing-logstash.html)

Tried running as root to avoid any sort of permissions issue, which doesn't help.

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<div class="post-metadata">

**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [November 21, 2016, 6:45am UTC](https://discuss.elastic.co/t/logstash-fails-to-start-the-simplest-pipeline/66307/2 "2016-11-21T06:45:55Z")

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On a first look things looked normal since you weren't supplying anything on stdin so Logstash would naturally wait for input, but a) unless this has changed in Logstash 5 it'll log something to stdout to indicate that it's alive and b) 13 seconds of CPU time just for starting up sounds excessive.

Have you tried bumping up the log level?

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<div class="post-metadata">

**Author:** ![letharion](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/letharion/32/13215_2.png) [@letharion](https://discuss.elastic.co/u/letharion)\
**Post date:** [November 21, 2016, 7:05am UTC](https://discuss.elastic.co/t/logstash-fails-to-start-the-simplest-pipeline/66307/3 "2016-11-21T07:05:08Z")

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It turned out that if I had waited just a little longer, after about 5 minutes logstash does start and work as expected.  
Not quite sure what the 5 minute mark was about, some kind of timeout perhaps, but what it's waiting for was unclear to me.

In either case I moved on with the setup, and got logstash working, so while the time it took for logstash to start in my example was annoying, ultimately it turned out to be a red herring. It does not take 5 min for logstash to start up when the full setup is inplace, as opposed to the the inline config sample above.

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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:** [December 19, 2016, 7:05am UTC](https://discuss.elastic.co/t/logstash-fails-to-start-the-simplest-pipeline/66307/4 "2016-12-19T07:05:27Z")

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