ElasticSearch Exception处理

1、RuntimeException: can not run elasticsearch as root

[2020-04-19T17:41:37,646][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:140) ~[elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:127) ~[elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.3.1.jar:6.3.1]

错误描述

   ElasticSearch高版本不能够由root用户启动，必须新建一个其他用户进行启动。

问题解决

[root@localhost ~]# useradd es
#文件所属权 转交给es用户
[root@localhost ~]# chown -R es:es elasticsearch-6.3.1
[root@localhost ~]# su es
#注意这里是es账户启动
[es@localhost ~]# ./elasticsearch

2、 Exception in thread "main" java.nio.file.AccessDeniedException:

[es1@es1 software]$ ./elasticsearch-6.3.1/bin/elasticsearch
Exception in thread "main" java.nio.file.AccessDeniedException: /home/es1/software/elasticsearch-6.3.1/config/jvm.options
    at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
    at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
    at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
    at sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:214)
    at java.nio.file.Files.newByteChannel(Files.java:361)
    at java.nio.file.Files.newByteChannel(Files.java:407)
    at java.nio.file.spi.FileSystemProvider.newInputStream(FileSystemProvider.java:384)
    at java.nio.file.Files.newInputStream(Files.java:152)
    at org.elasticsearch.tools.launchers.JvmOptionsParser.main(JvmOptionsParser.java:58)

错误描述

   使用非 root用户启动ES，而该用户的文件权限不足而被拒绝执行。

问题解决

#文件所属权 转交给es用户
[root@localhost ~]# chown -R es:es elasticsearch-6.3.1
[root@localhost ~]# su es
#注意这里是es账户启动
[es@localhost ~]# ./elasticsearch

3、CONFIG_SECCOMP not compiled into kernel, CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER are needed

[2020-04-19T17:32:01,048][WARN ][o.e.b.JNANatives         ] unable to install syscall filter:
java.lang.UnsupportedOperationException: seccomp unavailable: CONFIG_SECCOMP not compiled into kernel, CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER are needed
    at org.elasticsearch.bootstrap.SystemCallFilter.linuxImpl(SystemCallFilter.java:341) ~[elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.bootstrap.SystemCallFilter.init(SystemCallFilter.java:616) ~[elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.bootstrap.JNANatives.tryInstallSystemCallFilter(JNANatives.java:258) [elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.bootstrap.Natives.tryInstallSystemCallFilter(Natives.java:113) [elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:109) [elasticsearch-6.3.1.jar:6.3.1]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:171) [elasticsearch-6.3.1.jar:6.3.1]

错误描述

  ElasticSearch集群启动错误,错误的原因是:因为Centos6不支持SecComp,而ES默认bootstrap.system_call_filter为true进行检测,所以导致检测失败,失败后直接导致ES不能启动解决:修改elasticsearch.ym

问题解决

在所有节点的elasticsearch.yml配置文件中加入:

　　bootstrap.memory_lock: false
　　bootstrap.system_call_filter: false