Unable to lock JVM Memory: error=12--elasticsearch

曾经终败给现在 2023-01-03 06:14 294阅读 0赞

### 环境 ###

用的 tar.gz方式来安装

<table style="width:500px;"> 
 <tbody> 
 <tr> 
 <td>组件</td> 
 <td>版本</td> 
 </tr> 
 <tr> 
 <td>ElasticSearch</td> 
 <td>7.10.1</td> 
 </tr> 
 <tr> 
 <td>ubuntu</td> 
 <td>20.04</td> 
 </tr> 
 </tbody> 
</table>

### **经过测试有效的方案** ###

下面是根据\[1\]修改的

<table style="width:500px;"> 
 <tbody> 
 <tr> 
 <td>修改的文件文件</td> 
 <td>修改内容</td> 
 </tr> 
 <tr> 
 <td>/etc/security/limits.conf</td> 
 <td> appleyuchi soft nofile 65536 appleyuchi hard nofile 65536 appleyuchi soft nproc 32000 appleyuchi hard nproc 32000 appleyuchi soft memlock unlimited appleyuchi hard memlock unlimited &nbsp; 或者上面的appleyuchi全部改成* 需要注销后生效 </td> 
 </tr> 
 <tr> 
 <td>/etc/sysctl.conf</td> 
 <td> vm.max_map_count=262144 &nbsp; &nbsp; vm.swappiness=0 &nbsp; 生效命令 sysctl -p </td> 
 </tr> 
 </tbody> 
</table>

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### **经过测试无效的方案** ###

\[2\]中说修改jvm.options中的Xms与Xmx 的大小为512m(无效)

\[3\]中说修改`/usr/lib/systemd/system/`elasticsearch.service(这个应该是适合于deb方式安装的)

\[4\]说是一个新装的插件问题不支持es导致的

\[7\]中提到/etc/systemd/system.conf

加入

DefaultLimitNOFILE=65536
    DefaultLimitNPROC=32000
    DefaultLimitMEMLOCK=infinity

/bin/systemctl daemon-reload
    /bin/systemctl enable elasticsearch.service

确认重启后无效

### **一种逃避现实的方法** ###

\[5\]中提到

bootstrap.memory\_lock: false

然后这个报错就不见了.

但是这样会启动交换内存(也就是会把硬盘上的空间借用过来当做虚拟内存,所以不算完美解决)

### **Reference** ###

\[1\][docker Elasticsearch Unable to lock JVM Memory: error=12, reason=Cannot allocate memory][docker Elasticsearch Unable to lock JVM Memory_ error_12_ reason_Cannot allocate memory]

\[2\][docker启动elasticsearch失败–jvm内存不足解决方案][docker_elasticsearch_jvm]

\[3\][elasticsearchUnable to lock JVM Memory: error=12--elasticsearch][elasticsearchUnable to lock JVM Memory_ error_12--elasticsearch]

\[4\][elasticsearch报错\[WARN \]\[bootstrap \] Unable to lock JVM Memory: error=12,reason=Cannot allocate memory，解决][elasticsearch_WARN _bootstrap _ Unable to lock JVM Memory_ error_12_reason_Cannot allocate memory]

\[5\][ES安装的那些坑][ES]

\[6\][bootstrap.memory\_lock: true导致Elasticsearch启动失败问题][bootstrap.memory_lock_ true_Elasticsearch]

\[7\][记录一次Ubuntu16.04上安装Elasticsearch踩的坑，memory lock问题][Ubuntu16.04_Elasticsearch_memory lock]\\

[docker Elasticsearch Unable to lock JVM Memory_ error_12_ reason_Cannot allocate memory]: https://blog.csdn.net/dafengche000000/article/details/104969439
[docker_elasticsearch_jvm]: https://www.javatt.com/p/51684
[elasticsearchUnable to lock JVM Memory_ error_12--elasticsearch]: https://blog.csdn.net/u010434774/article/details/101974260
[elasticsearch_WARN _bootstrap _ Unable to lock JVM Memory_ error_12_reason_Cannot allocate memory]: https://www.cnblogs.com/pythonal/p/6555051.html
[ES]: https://blog.csdn.net/javasun608/article/details/80228617
[bootstrap.memory_lock_ true_Elasticsearch]: https://www.51dev.com/javascript/84701
[Ubuntu16.04_Elasticsearch_memory lock]: https://www.ucloud.cn/yun/69403.html