# Unrecognized VM option 'TieredStopAtLevel=1'

**URL:** <https://discuss.elastic.co/t/unrecognized-vm-option-tieredstopatlevel-1/40381>\
**Category:** Logstash\
**Created:** [January 28, 2016, 3:44pm UTC](https://discuss.elastic.co/t/unrecognized-vm-option-tieredstopatlevel-1/40381 "2016-01-28T15:44:30Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Christophe\_Dumont](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christophe_dumont/32/82868_2.png) [@Christophe\_Dumont](https://discuss.elastic.co/u/Christophe_Dumont)\
**Post date:** [January 28, 2016, 3:44pm UTC](https://discuss.elastic.co/t/unrecognized-vm-option-tieredstopatlevel-1/40381/1 "2016-01-28T15:44:30Z")

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Hello,

I want to install syslog-output plugin, i followed the doc ([https://www.elastic.co/guide/en/logstash/current/plugins-outputs-syslog.html#plugins-outputs-syslog-severity](https://www.elastic.co/guide/en/logstash/current/plugins-outputs-syslog.html#plugins-outputs-syslog-severity)) and ran the command  
bin/plugin install logstash-output-syslog

error :  
Unrecognized VM option 'TieredStopAtLevel=1'  
Could not create the Java virtual machine.

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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:** [January 28, 2016, 6:13pm UTC](https://discuss.elastic.co/t/unrecognized-vm-option-tieredstopatlevel-1/40381/2 "2016-01-28T18:13:01Z")

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Which JVM (run `java -version`)? Logstash requires Java 7 or later.

[https://www.elastic.co/guide/en/logstash/current/getting-started-with-logstash.html](https://www.elastic.co/guide/en/logstash/current/getting-started-with-logstash.html)

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<div class="post-metadata">

**Author:** ![Christophe\_Dumont](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christophe_dumont/32/82868_2.png) [@Christophe\_Dumont](https://discuss.elastic.co/u/Christophe_Dumont)\
**Post date:** [January 29, 2016, 7:36am UTC](https://discuss.elastic.co/t/unrecognized-vm-option-tieredstopatlevel-1/40381/3 "2016-01-29T07:36:10Z")

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java version "1.7.0\_95"  
OpenJDK Runtime Environment (IcedTea 2.6.4) (7u95-2.6.4-1~deb7u1)  
OpenJDK 64-Bit Server VM (build 24.95-b01, mixed mode)

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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:** [July 6, 2017, 5:13am UTC](https://discuss.elastic.co/t/unrecognized-vm-option-tieredstopatlevel-1/40381/4 "2017-07-06T05:13:48Z")

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Closed on July 6, 2017, 5:13am UTC