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都内でWEB系エンジニアやってます。

elasticsearch5を試してみる(on Docker)

手元の環境でdocker使って試してみた

CentOS7.2にdockerを立ててその中にelasticsearchを立ち上げた感じです

単純にDockerfileのバージョン指定を5に上げただけでは動きませんでした。

そもそもkopfとかHQとか入れていたのですが、そういうプラグインは別のアプリケーションとして動かすようになったようで、Dockerfileからはずしました。

あと、bin/pluginもファイル名が変わったようで「/usr/share/elasticsearch/bin/elasticsearch-plugin」になっていました

それぞれ直して起動すると

elasticsearch    | #
elasticsearch    | # There is insufficient memory for the Java Runtime Environment to continue.
elasticsearch    | # Native memory allocation (mmap) failed to map 2060255232 bytes for committing reserved memory.
elasticsearch    | # An error report file with more information is saved as:
elasticsearch    | # /tmp/hs_err_pid1.log
elasticsearch    | OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error='Cannot allocate memory' (errno=12)
elasticsearch exited with code 1

メモリ足りん。。。ホストのメモリがそもそも1Gしかなかったのでとりあえず4Gに上げて環境変数ES_HEAP_SIZEを512にして再度起動

elasticsearch    | Error: encountered environment variables that are no longer supported
elasticsearch    | Use jvm.options or ES_JAVA_OPTS to configure the JVM
elasticsearch    | ES_HEAP_SIZE=512: set -Xms512 and -Xmx512 in jvm.options or add "-Xms512 -Xmx512" to ES_JAVA_OPTS
elasticsearch exited with code 1

おや、JAVA_OPSに書けとのことなので環境変数をセットします

ES_JAVA_OPTS: '-Xms2048m -Xmx2048m'

search    | [2017-02-09T12:12:56,159][WARN ][o.e.d.s.g.GroovyScriptEngineService] [groovy] scripts are deprecated, use [painless] scripts instead
elasticsearch    | [2017-02-09T12:13:06,451][INFO ][o.e.n.Node               ] initialized
elasticsearch    | [2017-02-09T12:13:06,451][INFO ][o.e.n.Node               ] [VRXn0VR] starting ...
elasticsearch    | [2017-02-09T12:13:06,899][WARN ][i.n.u.i.MacAddressUtil   ] Failed to find a usable hardware address from the network interfaces; using random bytes: d7:dd:91:a9:b6:1e:9d:3e
elasticsearch    | [2017-02-09T12:13:07,195][INFO ][o.e.t.TransportService   ] [VRXn0VR] publish_address {172.18.0.4:9300}, bound_addresses {[::]:9300}
elasticsearch    | [2017-02-09T12:13:07,208][INFO ][o.e.b.BootstrapChecks    ] [VRXn0VR] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
elasticsearch    | ERROR: bootstrap checks failed
elasticsearch    | max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
elasticsearch    | [2017-02-09T12:13:07,241][INFO ][o.e.n.Node               ] [VRXn0VR] stopping ...
elasticsearch    | [2017-02-09T12:13:07,335][INFO ][o.e.n.Node               ] [VRXn0VR] stopped
elasticsearch    | [2017-02-09T12:13:07,338][INFO ][o.e.n.Node               ] [VRXn0VR] closing ...
elasticsearch    | [2017-02-09T12:13:07,387][INFO ][o.e.n.Node               ] [VRXn0VR] closed

oh…

dockerを動かしているホスト機で下記を実行して解決

sudo sysctl -w vm.max_map_count=262144

最終的に下記で起動できるところまで持ってけました

  • elasticsearch/Dockerfile
FROM elasticsearch:5

RUN /usr/share/elasticsearch/bin/elasticsearch-plugin install analysis-kuromoji
COPY config/elasticsearch.yml /usr/share/elasticsearch/config/elasticsearch.yml

EXPOSE 9200 9300
  • elasticsearch/config/elasticsearch.yml

CORS系の設定を追加(自分の環境で使うため)

network.host: 0.0.0.0
http.cors.enabled: true
http.cors.allow-origin: '*'
http.cors.max-age: 0
http.cors.allow-credentials: true
  • docker-compose.yml
  elasticsearch:
    container_name: elasticsearch
    build:
      context: ./elasticsearch
    ports:
      - "9200:9200"
      - "9300:9300"
    environment:
      ES_JAVA_OPTS: '-Xms2048m -Xmx2048m'
  kibana:
    container_name: kibana
    image: kibana
    links:
      - elasticsearch
    ports:
      - "5601:5601"

RESTAPI経由のindex mappingやドキュメント追加などの操作は以前と同じ感じで問題なく使えたので良かったです

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