I have a single node ElasticSearch Cluster in local. I am unable to start elasticsearch service. Getting this error: I have tried the answers of this and this post but couldn't resolve. OS: RedHat 7.5 All directories in elasticsearch have write permission There is no other elastic instance running , I have confirmed through ps -ef | grep java Please

ElasticSearch – Failed to obtain node locks

I have a single node ElasticSearch Cluster in local. I am unable to start elasticsearch service. Getting this error:

[bhatr@LRVCEM27547]~/elasticsearch-6.8.8/bin% elasticsearch                                                                                          5:30AM
[2020-04-27T05:30:14,280][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [unknown] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to obtain node locks, tried [[/remote/users/bhatr/elasticsearch-6.8.8/data]] 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:163) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.8.8.jar:6.8.8]
        at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.8.8.jar:6.8.8]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:116) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93) ~[elasticsearch-6.8.8.jar:6.8.8]
Caused by: java.lang.IllegalStateException: failed to obtain node locks, tried [[/remote/users/bhatr/elasticsearch-6.8.8/data]] 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:300) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.node.Node.<init>(Node.java:296) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.node.Node.<init>(Node.java:266) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:212) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) ~[elasticsearch-6.8.8.jar:6.8.8]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-6.8.8.jar:6.8.8]
        ... 6 more

I have tried the answers of this and this post but couldn’t resolve. OS: RedHat 7.5

All directories in elasticsearch have write permission
There is no other elastic instance running , I have confirmed through ps -ef | grep java

Please help to resolve this.

Answer

Deleted the data folder and rebooted my machine. Now it is working.

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Answer