Hi there,
I'm trying to run the latest Elasticsearch Docker container on Ubuntu 16, and on startup it attempts to access a data directory at /usr/share/elasticsearch/data where it outputs this error message:
[2018-02-07T19:16:16,421][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to obtain node locks, tried [[/usr/share/elasticsearch/data/docker-cluster]] with lock id [0]; maybe these locations are not writable or multiple nodes were started without increasing [node.max_local_storage_nodes] (was [1])?
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.1.3.jar:6.1.3]
at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.1.3.jar:6.1.3]
Caused by: java.lang.IllegalStateException: failed to obtain node locks, tried [[/usr/share/elasticsearch/data/docker-cluster]] with lock id [0]; maybe these locations are not writable or multiple nodes were started without increasing [node.max_local_storage_nodes] (was [1])?
at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:244) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.node.Node.<init>(Node.java:263) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.node.Node.<init>(Node.java:245) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:212) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:322) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.1.3.jar:6.1.3]
... 6 more
Caused by: java.io.IOException: failed to obtain lock on /usr/share/elasticsearch/data/nodes/0
at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:223) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.node.Node.<init>(Node.java:263) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.node.Node.<init>(Node.java:245) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:212) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:322) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.1.3.jar:6.1.3]
... 6 more
Caused by: java.nio.file.AccessDeniedException: /usr/share/elasticsearch/data/nodes/0/node.lock
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.newFileChannel(UnixFileSystemProvider.java:177) ~[?:?]
at java.nio.channels.FileChannel.open(FileChannel.java:287) ~[?:1.8.0_161]
at java.nio.channels.FileChannel.open(FileChannel.java:335) ~[?:1.8.0_161]
at org.apache.lucene.store.NativeFSLockFactory.obtainFSLock(NativeFSLockFactory.java:125) ~[lucene-core-7.1.0.jar:7.1.0 84c90ad2c0218156c840e19a64d72b8a38550659 - ubuntu - 2017-10-13 16:12:42]
at org.apache.lucene.store.FSLockFactory.obtainLock(FSLockFactory.java:41) ~[lucene-core-7.1.0.jar:7.1.0 84c90ad2c0218156c840e19a64d72b8a38550659 - ubuntu - 2017-10-13 16:12:42]
at org.apache.lucene.store.BaseDirectory.obtainLock(BaseDirectory.java:45) ~[lucene-core-7.1.0.jar:7.1.0 84c90ad2c0218156c840e19a64d72b8a38550659 - ubuntu - 2017-10-13 16:12:42]
at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:209) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.node.Node.<init>(Node.java:263) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.node.Node.<init>(Node.java:245) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:212) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:322) ~[elasticsearch-6.1.3.jar:6.1.3]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.1.3.jar:6.1.3]
... 6 more
First off, it didn't even create the directory, so I created it. Then I recursively changed the owner:group to root:docker and chmoded the group permissions to rwx, so that the docker group had full permissions on it. Both myself and the project user are members of the docker group.
drwxrwxr-x 3 root docker 4096 Feb 7 13:23 elasticsearch
and that directory isn't locked by any other process
lsof | grep /usr/share/elasticsearch
So, I'm not quite sure what's going on here. There isn't a separate docker or elasticsearch user registered, so why does the container process not have privileges in the data directory? I see some people on the Github saying to just chmod to 777, but that's obviously not a serious solution. There's gotta be something I'm missing here. Even if I do grant rwx to everybody, it doesn't solve the problem...