elasticsearch在centos启动失败

Question

centos 6.7， Elasticsearch 5

我已经使用 rpm 安装了 elasticsearch。但未能启动它。

error: permission denied on key 'vm.max_map_count'
Starting elasticsearch: /usr/share/elasticsearch/bin/elasticsearch: line 198:   875 Killed                  exec "$JAVA" $ES_JAVA_OPTS -Des.path.home="$ES_HOME" -cp "$ES_CLASSPATH" org.elasticsearch.bootstrap.Elasticsearch "$@" 0>&-
                                                           [FAILED]

Answer 1

我认为您应该将 vm.max_map_count 设置为适当的值。

见 https://www.elastic.co/guide/en/elasticsearch/reference/current/_maximum_map_count_check.html
和 https://github.com/elastic/elasticsearch/issues/4978

类似的东西应该可以解决您的问题:

sudo sysctl -w vm.max_map_count=262144