# Unrecognized VM option 'UseConcMarkSweepGC' while trying to install ES 7.13.0

**URL:** <https://discuss.elastic.co/t/unrecognized-vm-option-useconcmarksweepgc-while-trying-to-install-es-7-13-0/281307>\
**Category:** Elasticsearch\
**Created:** [August 13, 2021, 7:30am UTC](https://discuss.elastic.co/t/unrecognized-vm-option-useconcmarksweepgc-while-trying-to-install-es-7-13-0/281307 "2021-08-13T07:30:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![babai7](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/babai7/32/92957_2.png) [@babai7](https://discuss.elastic.co/u/babai7)\
**Post date:** [August 13, 2021, 7:30am UTC](https://discuss.elastic.co/t/unrecognized-vm-option-useconcmarksweepgc-while-trying-to-install-es-7-13-0/281307/1 "2021-08-13T07:30:24Z")

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Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: error:  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: **Unrecognized VM option 'UseConcMarkSweepGC'**  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: Error: Could not create the Java Virtual Machine.  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: Error: A fatal exception has occurred. Program will exit.  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: at org.elasticsearch.tools.launchers.JvmOption.flagsFinal(JvmOption.java:119)  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: at org.elasticsearch.tools.launchers.JvmOption.findFinalOptions(JvmOption.java:81)  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: at org.elasticsearch.tools.launchers.JvmErgonomics.choose(JvmErgonomics.java:38)  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: at org.elasticsearch.tools.launchers.JvmOptionsParser.jvmOptions(JvmOptionsParser.java:13\>  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* elasticsearch[1120000]: at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:86)  
Aug 13 09:16:10 \*\*\*\*\*\*\*\*\* systemd[1]: elasticsearch@node1.service: Main process exited, code=exited, status=1/FAILURE  
Aug 13 09:16:24 \*\*\*\*\*\*\*\*\* bash[1127676]: Deleting configurations files

**Can you please help me to resolve the error?**

**My JVM configuration is given below**

_## GC configuration_  
8-13:-XX:+UseConcMarkSweepGC  
8-13:-XX:CMSInitiatingOccupancyFraction=75  
8-13:-XX:+UseCMSInitiatingOccupancyOnly

_## G1GC Configuration_  
_# NOTE: G1 GC is only supported on JDK version 10 or later_  
_# to use G1GC, uncomment the next two lines and update the version on the_  
_# following three lines to your version of the JDK_  
_# 10-13:-XX:-UseConcMarkSweepGC_  
_# 10-13:-XX:-UseCMSInitiatingOccupancyOnly_  
14-:-XX:+UseG1GC  
14-:-XX:G1ReservePercent=25  
14-:-XX:InitiatingHeapOccupancyPercent=30

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<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [August 17, 2021, 1:20am UTC](https://discuss.elastic.co/t/unrecognized-vm-option-useconcmarksweepgc-while-trying-to-install-es-7-13-0/281307/2 "2021-08-17T01:20:55Z")

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Welcome to our community! 😃

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What does your Elasticsearch config look like?

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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:** [September 14, 2021, 1:21am UTC](https://discuss.elastic.co/t/unrecognized-vm-option-useconcmarksweepgc-while-trying-to-install-es-7-13-0/281307/3 "2021-09-14T01:21:41Z")

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