Elasticsearch 최대 메모리 크기를 변경하는 방법

Elasticsearch 최대 메모리 크기를 변경하는 방법

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기본 구성이 Elasticsearch 인 Apache 서버가 있으며 기본 구성의 최대 크기가 1GB 인 것을 제외하고는 모든 것이 완벽하게 작동합니다.

Elasticsearch에 저장할 문서가 너무 많지 않아서 메모리를 줄이고 싶습니다.

-XmxJava 구성에서 매개 변수 를 변경해야하는 것을 보았지만 방법을 모르겠습니다.

나는 이것을 실행할 수 있음을 보았다.

bin/ElasticSearch -Xmx=2G -Xms=2G

그러나 Elasticsearch를 다시 시작해야 할 때 이것은 손실됩니다.

Elasticsearch가 서비스로 설치된 경우 최대 메모리 사용량을 변경할 수 있습니까?

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에서 ElasticSearch> = 5 문서가있다 변경 위의 답변 중 아무도 나를 위해 일한 의미한다.

나는 변화 시도 ES_HEAP_SIZE에 /etc/default/elasticsearch와에 etc/init.d/elasticsearch,하지만 난 실행할 때 ps aux | grep elasticsearch출력은 여전히 보여 주었다 :

/usr/bin/java -Xms2g -Xmx2g # aka 2G min and max ram

다음과 같이 변경해야했습니다.

/etc/elasticsearch/jvm.options

# Xms represents the initial size of total heap space
# Xmx represents the maximum size of total heap space

-Xms1g 
-Xmx1g 
# the settings shipped with ES 5 were: -Xms2g
# the settings shipped with ES 5 were: -Xmx2g

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2016 년 11 월 24 일 업데이트 : Elasticsearch 5가 JVM 구성 방식을 변경 한 것 같습니다. 여기에서이 답변을 참조하십시오 . 아래 답변은 여전히 ​​5 미만 버전에 적용됩니다.

tirdadc, 아래 의견에 이것을 지적 해 주셔서 감사합니다.

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기억력과 ES에 대해 궁금 할 때 다른 사람들과 공유하는 pastebin 페이지가 있습니다. 나를 위해 잘 작동했습니다 : http://pastebin.com/mNUGQCLY . 여기에도 내용을 붙여 넣겠습니다.

참조 :

https://github.com/grigorescu/Brownian/wiki/ElasticSearch-Configuration http://www.elasticsearch.org/guide/reference/setup/installation/

메모리 및 파일 수 제한을 수정하려면 다음 파일을 편집하십시오. 이 지침은 Ubuntu 10.04를 가정하고 이후 버전 및 기타 배포 / OS에서 작동 할 수 있습니다. ( 편집 : Ubuntu 14.04에서도 작동합니다.)

/etc/security/limits.conf :

elasticsearch - nofile 65535
elasticsearch - memlock unlimited

/ etc / default / elasticsearch (CentOS / RH : / etc / sysconfig / elasticsearch) :

ES_HEAP_SIZE=512m
MAX_OPEN_FILES=65535
MAX_LOCKED_MEMORY=unlimited

/etc/elasticsearch/elasticsearch.yml :

bootstrap.mlockall: true

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Centos 7 또는 SystemD를 실행하는 다른 시스템에서이 작업을 수행하려는 경우 다음에서 변경하십시오.

/etc/sysconfig/elasticsearch 

ES_HEAP_SIZE 줄의 주석 처리를 제거하고 값을 설정합니다. 예 :

# Heap Size (defaults to 256m min, 1g max)
ES_HEAP_SIZE=16g

(1g max에 대한 설명은 무시하십시오. 이것이 기본값입니다)

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지침 ubuntu 14.04:

sudo vim /etc/init.d/elasticsearch

세트

ES_HEAP_SIZE=512m

다음에서 :

sudo vim /etc/elasticsearch/elasticsearch.yml

세트:

bootstrap.memory_lock: true

자세한 내용은 파일에 주석이 있습니다.

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Previous answers were insufficient in my case, probably because I'm on Debian 8, while they were referred to some previous distribution.

On Debian 8 modify the service script normally place in /usr/lib/systemd/system/elasticsearch.service, and add Environment=ES_HEAP_SIZE=8G just below the other "Environment=*" lines.

Now reload the service script with systemctl daemon-reload and restart the service. The job should be done!

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If you use the service wrapper provided in Elasticsearch's Github repository, found at https://github.com/elasticsearch/elasticsearch-servicewrapper, then the conf file at elasticsearch-servicewrapper / service / elasticsearch.conf controls memory settings. At the top of elasticsearch.conf is a parameter:

set.default.ES_HEAP_SIZE=1024

Just reduce this parameter, say to "set.default.ES_HEAP_SIZE=512", to reduce Elasticsearch's allotted memory.

Note that if you use the elasticsearch-wrapper, the ES_HEAP_SIZE provided in elasticsearch.conf OVERRIDES ALL OTHER SETTINGS. This took me a bit to figure out, since from the documentation, it seemed that heap memory could be set from elasticsearch.yml.

If your service wrapper settings are set somewhere else, such as at /etc/default/elasticsearch as in James's example, then set the ES_HEAP_SIZE there.

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If you installed ES using the RPM/DEB packages as provided (as you seem to have), you can adjust this by editing the init script (/etc/init.d/elasticsearch on RHEL/CentOS). If you have a look in the file you'll see a block with the following:

export ES_HEAP_SIZE
export ES_HEAP_NEWSIZE
export ES_DIRECT_SIZE
export ES_JAVA_OPTS
export JAVA_HOME

To adjust the size, simply change the ES_HEAP_SIZE line to the following:

export ES_HEAP_SIZE=xM/xG

(where x is the number of MB/GB of RAM that you would like to allocate)

Example:

export ES_HEAP_SIZE=1G

Would allocate 1GB.

Once you have edited the script, save and exit, then restart the service. You can check if it has been correctly set by running the following:

ps aux | grep elasticsearch

And checking for the -Xms and -Xmx flags in the java process that returns:

/usr/bin/java -Xms1G -Xmx1G

Hope this helps :)

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In elasticsearch path home dir i.e. typically /usr/share/elasticsearch, There is a config file bin/elasticsearch.in.sh. Edit parameter ES_MIN_MEM, ES_MAX_MEM in this file to change -Xms2g, -Xmx4g respectively. And Please make sure you have restarted the node after this config change.

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• Elasticsearch will assign the entire heap specified in jvm.options via the Xms (minimum heap size) and Xmx (maximum heap size) settings.
  • -Xmx12g
  • -Xmx12g
• Set the minimum heap size (Xms) and maximum heap size (Xmx) to be equal to each other.

• Don’t set Xmx to above the cutoff that the JVM uses for compressed object pointers (compressed oops), the exact cutoff varies but is near 32 GB.

• It is also possible to set the heap size via an environment variable

  • ES_JAVA_OPTS="-Xms2g -Xmx2g" ./bin/elasticsearch
  • ES_JAVA_OPTS="-Xms4000m -Xmx4000m" ./bin/elasticsearch

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If you use windows server, you can change Environment Variable, restart server to apply new Environment Value and start Elastic Service. More detail in Install Elastic in Windows Server

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In elasticsearch 2.x :

vi /etc/sysconfig/elasticsearch 

Go to the block of code

# Heap size defaults to 256m min, 1g max
# Set ES_HEAP_SIZE to 50% of available RAM, but no more than 31g
#ES_HEAP_SIZE=2g

Uncomment last line like

ES_HEAP_SIZE=2g

참고URL : https://stackoverflow.com/questions/18132719/how-to-change-elasticsearch-max-memory-size