# Elasticsearch master node start failed. There is insufficient memory for the Java Runtime Environment to continue

**URL:** <https://discuss.elastic.co/t/elasticsearch-master-node-start-failed-there-is-insufficient-memory-for-the-java-runtime-environment-to-continue/263520>\
**Category:** Elasticsearch\
**Created:** [February 7, 2021, 9:16am UTC](https://discuss.elastic.co/t/elasticsearch-master-node-start-failed-there-is-insufficient-memory-for-the-java-runtime-environment-to-continue/263520 "2021-02-07T09:16:51Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jinlian\_Chen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jinlian_chen/32/44738_2.png) [@Jinlian\_Chen](https://discuss.elastic.co/u/Jinlian_Chen)\
**Post date:** [February 7, 2021, 9:16am UTC](https://discuss.elastic.co/t/elasticsearch-master-node-start-failed-there-is-insufficient-memory-for-the-java-runtime-environment-to-continue/263520/1 "2021-02-07T09:16:51Z")

</div>

I have setup a elasticsearch cluster with 3 master node and 2 data node on k8s. While start master node , it failed.  
System config:

```
ulimit -n 65535
ulimit -l unlimited
sysctl -w vm.max_map_count=262144
sysctl -w vm.overcommit_memory=2
sysctl -w vm.overcommit_ratio=60

```

Running command with jvm options: -Xmx2g -Xms2g

` /usr/share/elasticsearch/jdk/bin/java -Xshare:auto -Des.networkaddress.cache.ttl=60 -Des.networkaddress.cache.negative.ttl=10 -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Djna.nosys=true -XX:-OmitStackTraceInFastThrow -XX:+ShowCodeDetailsInExceptionMessages -Dio.netty.noUnsafe=true -Dio.netty.noKeySetOptimization=true -Dio.netty.recycler.maxCapacityPerThread=0 -Dio.netty.allocator.numDirectArenas=0 -Dlog4j.shutdownHookEnabled=false -Dlog4j2.disable.jmx=true -Djava.locale.providers=SPI,COMPAT -Xms1g -Xmx1g -XX:+UseG1GC -XX:G1ReservePercent=25 -XX:InitiatingHeapOccupancyPercent=30 -Djava.io.tmpdir=/tmp/elasticsearch-9298489965720023744 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=data -XX:ErrorFile=logs/hs_err_pid%p.log -Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m -Des.cgroups.hierarchy.override=/ -Xmx2g -Xms2g -XX:MaxDirectMemorySize=1073741824 -Des.path.home=/usr/share/elasticsearch -Des.path.conf=/usr/share/elasticsearch/config -Des.distribution.flavor=default -Des.distribution.type=docker -Des.bundled_jdk=true -cp /usr/share/elasticsearch/lib/* org.elasticsearch.bootstrap.Elasticsearch -Enode.name=ems-search-000-master-1 -Enode.transform=false -Ecluster.initial_master_nodes=ems-search-000-master-0,ems-search-000-master-1,ems-search-000-master-2, -Enetwork.host=0.0.0.0 -Enode.remote_cluster_client=false -Enode.ingest=false -Enode.data=false -Ediscovery.seed_hosts=ems-search-000-master-headless -Ecluster.name=ems-search-000 -Enode.ml=false -Enode.master=true`

We first deployed a master on aws m5.large instance with 8GB RAM, it failed.  
While we deployed it on aws m5.xlarge instance with 16GB RAM, it worked.  
Got error:

```
vm.max_map_count = 262144
vm.overcommit_memory = 2
vm.overcommit_ratio = 60
OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000aaaa0000, 1431699456, 0) failed; error='Not enough space' (errno=12)
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 1431699456 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /usr/share/elasticsearch/hs_err_pid19.log
OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000aaaa0000, 1431699456, 0) failed; error='Not enough space' (errno=12)
OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000aaaa0000, 1431699456, 0) failed; error='Not enough space' (errno=12)
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 1431699456 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /usr/share/elasticsearch/hs_err_pid131.log

```

Why master node can't start on instance with 8GB RAM, I think the memory is enough.

---

<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:** [March 7, 2021, 9:17am UTC](https://discuss.elastic.co/t/elasticsearch-master-node-start-failed-there-is-insufficient-memory-for-the-java-runtime-environment-to-continue/263520/2 "2021-03-07T09:17:31Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.