Linux 环境下安装 Elasticsearch 5.x、6.x 问题汇总

2023年8月9日 111次阅读 来源: BeckJin
can not run elasticsearch as root

[o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root

解决方案：
因为安全问题 elasticsearch 不让用root用户直接运行，建议创建一个单独的用户用来运行 elasticsearch。我们可以创建elsearch用户组及elsearch用户，然后用这个用户来启动 elasticsearch。

groupadd elsearch
useradd elsearch -g elsearch -p elasticsearch
access denied

main ERROR Could not register mbeans java.security.AccessControlException: access denied (“javax.management.MBeanTrustPermission” “register”)

解决方案：
root 用户下，改变 elasticsearch-5.1.1 文件夹所有者给 elasticsearch 启动用户：

sudo chown -R elsearch:elsearch elasticsearch-5.1.1
There is insufficient memory for the Java Runtime Environment to continue

Cannot allocate memory
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error=’Cannot allocate memory’ (errno=12)
There is insufficient memory for the Java Runtime Environment to continue.

解决方案：
修改 config/jvm.options，2g改成1g，也可以更小

-Xmx2g => -Xmx1g

unable to install syscall filter

unable to install syscall filter:
java.lang.UnsupportedOperationException: seccomp unavailable: requires kernel 3.5+ with CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER compiled in
at org.elasticsearch.bootstrap.Seccomp.linuxImpl(Seccomp.java:349) ~[elasticsearch-5.0.0.jar:5.0.0]
at org.elasticsearch.bootstrap.Seccomp.init(Seccomp.java:630) ~[elasticsearch-5.0.0.jar:5.0.0]

报了一大串错误，其实只是一个警告。

解决方案：
使用最新 Linux 版本，就不会出现此类问题了，可用忽略。

max number of threads [1024] for user [lish] likely too low, increase to at least [2048]

解决方案：
root用户下，进入limits.d目录下修改配置文件：

vim /etc/security/limits.d/90-nproc.conf

修改 soft nproc：

soft nproc 2048
max file descriptors for elasticsearch process likely too low

ERROR: bootstrap checks failed
max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]
max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]

解决方案：
root用户下，编辑 limits.conf：

vim /etc/security/limits.conf

添加如下内容:

* soft nofile 65536
* hard nofile 65536
* soft nproc 2048
* hard nproc 4096
system call filters failed to install

ERROR: bootstrap checks failed
system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
解决方案：
修改 elasticsearch 配置文件：

vim config/elasticsearch.yml

增加配置：

bootstrap.system_call_filter: false
max virtual memory areas vm.max_map_count [65530] likely too low, increase to at least [262144]

解决方案：
root用户下，修改配置 sysctl.conf

vim /etc/sysctl.conf

添加下面配置：

vm.max_map_count=655360

执行命令：

sysctl -p

重新启动 elasticsearch

    原文作者：BeckJin
    原文地址: https://www.jianshu.com/p/fce1474dc6e7
    本文转自网络文章，转载此文章仅为分享知识，如有侵权，请联系博主进行删除。
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