- 异常1: can not run elasticsearch as root
[WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [node-2] 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:125) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.cli.Command.main(Command.java:88) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:89) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:82) ~[elasticsearch-5.1.2.jar:5.1.2] Caused by: java.lang.RuntimeException: can not run elasticsearch as root at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:100) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:176) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:306) ~[elasticsearch-5.1.2.jar:5.1.2] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-5.1.2.jar:5.1.2] ... 6 more
- 异常1解决方式:
在es-linux环境中,不允许使用root用户运行ElasticSearch,所以添加一个新的普通用户就可以了(linux命令如下)
1 groupadd es -- 创建一个用户组(我使用的es作为组名) 2 useradd -g es es -- 创建一个用户(我使用es作为用户名,并加入到es组里面) 3 passwd es -- 为刚刚创建的es用户添加密码 4 su es -- 切换到es用户下 5 $ElasticSearch_Home/bin/elasticsearch --启动ElasticSearch
异常2: failed to obtain lock on ...
1 Caused by: java.io.IOException: failed to obtain lock on /bigdata/env/elasticsearch512/data/nodes/0 2 at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:238) ~[elasticsearch-5.1.2.jar:5.1.2] 3 at org.elasticsearch.node.Node.<init>(Node.java:249) ~[elasticsearch-5.1.2.jar:5.1.2] 4 at org.elasticsearch.node.Node.<init>(Node.java:229) ~[elasticsearch-5.1.2.jar:5.1.2] 5 at org.elasticsearch.bootstrap.Bootstrap$6.<init>(Bootstrap.java:214) ~[elasticsearch-5.1.2.jar:5.1.2] 6 at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:214) ~[elasticsearch-5.1.2.jar:5.1.2] 7 at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:306) ~[elasticsearch-5.1.2.jar:5.1.2] 8 at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-5.1.2.jar:5.1.2] 9 ... 6 more 10 Caused by: java.nio.file.AccessDeniedException: /bigdata/env/elasticsearch512/data/nodes/0/node.lock 11 at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:?] 12 at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:?] 13 at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) ~[?:?] 14 at sun.nio.fs.UnixFileSystemProvider.newFileChannel(UnixFileSystemProvider.java:177) ~[?:?] 15 at java.nio.channels.FileChannel.open(FileChannel.java:287) ~[?:1.8.0_181] 16 at java.nio.channels.FileChannel.open(FileChannel.java:335) ~[?:1.8.0_181] 17 at org.apache.lucene.store.NativeFSLockFactory.obtainFSLock(NativeFSLockFactory.java:113) ~[lucene-core-6.3.0.jar:6.3.0 a66a44513ee8191e25b477372094bfa846450316 - shalin - 2016-11-02 19:47:11] 18 at org.apache.lucene.store.FSLockFactory.obtainLock(FSLockFactory.java:41) ~[lucene-core-6.3.0.jar:6.3.0 a66a44513ee8191e25b477372094bfa846450316 - shalin - 2016-11-02 19:47:11] 19 at org.apache.lucene.store.BaseDirectory.obtainLock(BaseDirectory.java:45) ~[lucene-core-6.3.0.jar:6.3.0 a66a44513ee8191e25b477372094bfa846450316 - shalin - 2016-11-02 19:47:11] 20 at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:225) ~[elasticsearch-5.1.2.jar:5.1.2] 21 at org.elasticsearch.node.Node.<init>(Node.java:249) ~[elasticsearch-5.1.2.jar:5.1.2] 22 at org.elasticsearch.node.Node.<init>(Node.java:229) ~[elasticsearch-5.1.2.jar:5.1.2] 23 at org.elasticsearch.bootstrap.Bootstrap$6.<init>(Bootstrap.java:214) ~[elasticsearch-5.1.2.jar:5.1.2] 24 at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:214) ~[elasticsearch-5.1.2.jar:5.1.2] 25 at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:306) ~[elasticsearch-5.1.2.jar:5.1.2] 26 at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-5.1.2.jar:5.1.2] 27 ... 6 more
异常解决方式2:
由于上面使用root创建的es目录,导致ElasticSearch安装目录的所属用户和所属组都是root,现在使用es用户去启动elasticsearch命令,导致没有权限获取node.lock
最直接的解决方式: 将es所有目录更改所属用户到es下就可以了
1 chown -R es:es ./elasticsearch512 2 --(elasticsearch512是我对es安装目录的命名) 3 --(-R选项: 将elasticsearch512目录及内部所有子目录都更改所属用户) 4 --(es:es 代表: 用户:用户组)