Контейнер с ElasticSearch грузит cpu, как найти причину?

elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.5.0
    volumes:
      - ./docker/elasticsearch/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml
    ports:
      - "9200:9200"
      - "9300:9300"
    environment:
      ES_JAVA_OPTS: "-Xmx256m -Xms256m"
      #login and password
      ELASTIC_PASSWORD: ${ELASTIC_PASSWORD}
      # Use single node discovery in order to disable production mode and avoid bootstrap checks
      # see https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html
      cluster.name: demo

      discovery.type: single-node