bootstrap checks failed [1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least

bootstrap checks failed : max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144] 这个错误是由于Elasticsearch启动时对系统进行了一系列的检查，而其中的一个检查是检查虚拟内存区域的最大数量(vm.max_map_count)是否足够高。在这个错误中，虚拟内存区域的最大数量被检测到太低了，需要至少增加到262144。

有两种解决方案可以解决这个问题。第一种是临时修改虚拟内存区域的最大数量，可以使用以下命令来修改：

sysctl -w vm.max_map_count=262144

第二种是永久修改虚拟内存区域的最大数量，可以使用以下命令来修改/etc/sysctl.conf文件：

echo vm.max_map_count=262144 >> /etc/sysctl.conf

然后使用以下命令来使修改生效：

sysctl -p

另外，如果你使用Docker运行Elasticsearch，可以在Docker run命令中添加以下参数来增加虚拟内存区域的最大数量：

docker run -d -p 9200:9200 -p 9300:9300 --name <自定义容器名字> -e "ES_JAVA_OPTS=-Xms512m -Xmx512m" -e "discovery.type=single-node" --sysctl vm.max_map_count=262144 <容器ID>

这样就能够解决bootstrap checks failed : max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]这个错误了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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