# Logstash Issue while runnig

**URL:** <https://discuss.elastic.co/t/logstash-issue-while-runnig/118198>\
**Category:** Logstash\
**Created:** [February 2, 2018, 9:46am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198 "2018-02-02T09:46:34Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![saineshwar\_bageri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/saineshwar_bageri/32/32688_2.png) [@saineshwar\_bageri](https://discuss.elastic.co/u/saineshwar_bageri)\
**Post date:** [February 2, 2018, 9:46am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/1 "2018-02-02T09:46:34Z")

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```
NameError: cannot link Java class org.logstash.RubyUtil org/logstash/RubyUtil : Unsupported major.minor version 52.0
  method_missing at org/jruby/javasupport/JavaPackage.java:259
      <main> at C:/logstash/logstash-core/lib/logstash-core/logstash-core.rb:37
     require at org/jruby/RubyKernel.java:955
      <main> at C:/logstash/logstash-core/lib/logstash/runner.rb:1
     require at org/jruby/RubyKernel.java:955
      <main> at C:\logstash\lib\bootstrap\environment.rb:66
```

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**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:** [February 2, 2018, 10:16am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/2 "2018-02-02T10:16:09Z")

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Logstash requires Java 8.

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**Author:** ![saineshwar\_bageri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/saineshwar_bageri/32/32688_2.png) [@saineshwar\_bageri](https://discuss.elastic.co/u/saineshwar_bageri)\
**Post date:** [February 2, 2018, 11:49am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/3 "2018-02-02T11:49:34Z")

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hi magnusbaeck,  
it already 8 above.

![image](https://us1.discourse-cdn.com/elastic/original/3X/5/3/539f28f8bce6e416d8ee1b466335eafc8da47e8b.png)

i am look for tool to import data from mysql to elastic search, can you guide me in this.

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**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:** [February 2, 2018, 12:05pm UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/4 "2018-02-02T12:05:13Z")

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Okay, but the evidence indicates that Logstash for whatever reason is picking up the wrong JVM.

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<div class="post-metadata">

**Author:** ![saineshwar\_bageri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/saineshwar_bageri/32/32688_2.png) [@saineshwar\_bageri](https://discuss.elastic.co/u/saineshwar_bageri)\
**Post date:** [February 3, 2018, 6:18am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/5 "2018-02-03T06:18:59Z")

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Sir how can i resolve issue. is Logstash paid.

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [February 3, 2018, 10:44am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/6 "2018-02-03T10:44:39Z")

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That looks like a very old Java8 version. The [support matrix](https://www.elastic.co/support/matrix#matrix_jvm) lists `Oracle JVM 1.8u60+` as supported, so it may be worthwhile upgrading Java and see if that helps.

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<div class="post-metadata">

**Author:** ![saineshwar\_bageri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/saineshwar_bageri/32/32688_2.png) [@saineshwar\_bageri](https://discuss.elastic.co/u/saineshwar_bageri)\
**Post date:** [February 6, 2018, 8:36am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/7 "2018-02-06T08:36:24Z")

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Thanks Christian\_Dahlqvist it worked for me.

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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:** [March 6, 2018, 8:36am UTC](https://discuss.elastic.co/t/logstash-issue-while-runnig/118198/8 "2018-03-06T08:36:36Z")

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