Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release on mac

[nijanthan0]

Java HotSpot(TM) 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
[2019-08-20T17:09:16,659][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [Macintosh.local] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to obtain node locks, tried [[/Users/sura_developers/elasticsearch-7.3.0/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-7.3.0.jar:7.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-7.3.0.jar:7.3.0]
	at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.3.0.jar:7.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.3.0.jar:7.3.0]
Caused by: java.lang.IllegalStateException: failed to obtain node locks, tried [[/Users/sura_developers/elasticsearch-7.3.0/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:299) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.node.Node.<init>(Node.java:278) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.node.Node.<init>(Node.java:258) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:221) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:221) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349) ~[elasticsearch-7.3.0.jar:7.3.0]
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.3.0.jar:7.3.0]
	... 6 more Preformatted text```

[dadoonet (David Pilato)]

Welcome!

Please format your code, logs or configuration files using </> icon as explained in this guide and not the citation button. It will make your post more readable.

Or use markdown style like:

```
CODE
```

This is the icon to use if you are not using markdown format:

There's a live preview panel for exactly this reasons.

Lots of people read these forums, and many of them will simply skip over a post that is difficult to read, because it's just too large an investment of their time to try and follow a wall of badly formatted text.
If your goal is to get an answer to your questions, it's in your interest to make it as easy to read and understand as possible.
Please update your post.

About your problem it seems that you are trying to start multiple instances on the same machine.

[nijanthan0]

Thank You. Please help me with these problem

[dadoonet (David Pilato)]

I think I did. Did you miss the last sentence I wrote? And BTW your post is still wrongly formatted.