# Cluster (connect 2 nodes)

**URL:** <https://discuss.elastic.co/t/cluster-connect-2-nodes/134384>\
**Category:** Elasticsearch\
**Created:** [June 4, 2018, 8:11am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384 "2018-06-04T08:11:35Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 8:11am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/1 "2018-06-04T08:11:35Z")

</div>

Hi,

I want to connecte 2 nodes Elastic search to make a cluster, the two nodes are on a different servers. Can someone help me to do this ?

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 9:06am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/2 "2018-06-04T09:06:43Z")

</div>

I can't find on "elasticsearch.yml" :

node.master:  
node.data:  
index.number\_of\_replicas:

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 9:30am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/3 "2018-06-04T09:30:04Z")

</div>

I did :

**Node 1 :**  
cluster.name: network-logs  
node.name: network-1  
network.host: 0.0.0.0  
discovery.zen.ping.unicast.hosts: ["172.16.250.29"]

**Node 2 :**  
cluster.name: network-logs  
node.name: network-2  
network.host: 0.0.0.0  
discovery.zen.ping.unicast.hosts: ["172.16.250.29"]

How can I know that this works ?

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 9:41am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/4 "2018-06-04T09:41:18Z")

</div>

Hi @asalma,

Can you run on any of the two nodes you mention above?:

```
http://localhost:9200/_cat/nodes?pretty 

```

If both nodes show in the results, everything works as expected.

James

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 9:43am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/5 "2018-06-04T09:43:32Z")

</div>

on the first node it worked but on the second I have :

curl: (7) Failed connect to localhost:9200; Connection refused

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 9:47am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/6 "2018-06-04T09:47:29Z")

</div>

Is elasticsearch running on the second node? Can you run:

```
netstat -pan | grep 9200

```

Also, did you check the logs in /var/log/elasticsearch/network-logs.log ?

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 9:49am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/7 "2018-06-04T09:49:27Z")

</div>

> [@jamesspi](#):
>
> netstat -pan | grep 9200

```auto
[root@frghcslnetv12 data]# netstat -pan | grep 9200
[root@frghcslnetv12 data]# cd /var/log/elasticsearch
[root@frghcslnetv12 elasticsearch]# ls
elasticsearch_deprecation.log network-logs_deprecation.log
elasticsearch_index_indexing_slowlog.log network-logs_index_indexing_slowlog.log
elasticsearch_index_search_slowlog.log network-logs_index_search_slowlog.log
elasticsearch.log network-logs.log
gc.log.0.current 

```

I started elasticsearch but i think it is not running

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 9:51am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/8 "2018-06-04T09:51:07Z")

</div>

Can you check what there is in network-logs.log please?

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 9:55am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/9 "2018-06-04T09:55:25Z")

</div>

> [@asalma](#):
>
> cd /var/log/elasticsearch

```auto

[2018-06-04T11:33:48,555][ERROR][o.e.b.Bootstrap] Exception
java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:70) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.addFilePermissions(Security.java:307) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:262) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.configure(Security.java:123) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:208) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:323) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) [elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) [elasticsearch-6.2.4.jar:6.2.4]
Caused by: java.nio.file.AccessDeniedException: /data/elasticsearch
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) ~[?:1.8.0_171]
        at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:384) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectory(Files.java:674) ~[?:1.8.0_171]
        at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectories(Files.java:767) ~[?:1.8.0_171]
        at org.elasticsearch.bootstrap.Security.ensureDirectoryExists(Security.java:421) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:68) ~[elasticsearch-6.2.4.jar:6.2.4]
        ... 12 more
[2018-06-04T11:33:48,566][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.2.4.jar:6.2.4]
Caused by: java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:70) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.addFilePermissions(Security.java:307) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:262) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.configure(Security.java:123) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:208) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:323) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.2.4.jar:6.2.4]
        ... 6 more
Caused by: java.nio.file.AccessDeniedException: /data/elasticsearch
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:1.8.0_171]
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) ~[?:1.8.0_171]
        at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:384) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectory(Files.java:674) ~[?:1.8.0_171]
        at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectories(Files.java:767) ~[?:1.8.0_171]
        at org.elasticsearch.bootstrap.Security.ensureDirectoryExists(Security.java:421) ~[elasticsearch-6.2.4.jar:6.2.4]
        at 

... etc

```

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 9:57am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/10 "2018-06-04T09:57:48Z")

</div>

Right, you need to set the correct ownership on the elasticsearch data directory:

```
chown -R elasticsearch:elasticsearch /data/elasticsearch

```

Then start the elasticsearch service again.

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 10:00am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/11 "2018-06-04T10:00:25Z")

</div>

> [@jamesspi](#):
>
> [http://localhost:9200/\_cat/nodes?pretty](http://localhost:9200/_cat/nodes?pretty)

```auto
[root@frghcslnetv12 data]# ls -l
total 20
drwxr-x--- 3 elasticsearch elasticsearch 4096 Jun 4 11:52 elasticsearch
drwx------ 2 root root 16384 Jun 1 11:33 lost+found

```

```auto
[root@frghcslnetv12 elasticsearch]# curl http://localhost:9200/_cat/nodes?pretty
curl: (7) Failed connect to localhost:9200; Connection refused

```

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 10:01am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/12 "2018-06-04T10:01:07Z")

</div>

You need to give it a minute to start up - and confirm that it started correctly by checking the same log as before.

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 10:05am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/13 "2018-06-04T10:05:54Z")

</div>

```auto
[2018-06-04T11:33:48,555][ERROR][o.e.b.Bootstrap] Exception
java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:70) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.addFilePermissions(Security.java:307) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:262) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.configure(Security.java:123) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:208) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:323) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) [elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) [elasticsearch-6.2.4.jar:6.2.4]
Caused by: java.nio.file.AccessDeniedException: /data/elasticsearch
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) ~[?:1.8.0_171]
        at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:384) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectory(Files.java:674) ~[?:1.8.0_171]
        at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectories(Files.java:767) ~[?:1.8.0_171]
        at org.elasticsearch.bootstrap.Security.ensureDirectoryExists(Security.java:421) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:68) ~[elasticsearch-6.2.4.jar:6.2.4]
        ... 12 more
[2018-06-04T11:33:48,566][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.2.4.jar:6.2.4]
Caused by: java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:70) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.addFilePermissions(Security.java:307) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:262) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.configure(Security.java:123) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:208) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:323) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.2.4.jar:6.2.4]
        ... 6 more
Caused by: java.nio.file.AccessDeniedException: /data/elasticsearch
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:1.8.0_171]

```

I'm still having the same problem 😕

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 10:06am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/14 "2018-06-04T10:06:18Z")

</div>

What are the permissions on /data?

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 10:07am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/15 "2018-06-04T10:07:27Z")

</div>

```auto
drwxrwx--- 4 log-admin log-admin 4096 Jun 4 11:31 data
```

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 10:08am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/16 "2018-06-04T10:08:26Z")

</div>

Ok, so you need to add the elasticsearch user as a member of the log-admin group:

```
usermod -aG log-admin elasticsearch
```

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 10:12am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/17 "2018-06-04T10:12:08Z")

</div>

```auto

[root@frghcslnetv12 data]# curl http://localhost:9200/_cat/nodes?pretty
{
  "error" : {
    "root_cause" : [
      {
        "type" : "master_not_discovered_exception",
        "reason" : null
      }
    ],
    "type" : "master_not_discovered_exception",
    "reason" : null
  },
  "status" : 503
}

```

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 10:13am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/18 "2018-06-04T10:13:12Z")

</div>

logs?

---

<div class="post-metadata">

**Author:** ![asalma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/asalma/32/32199_2.png) [@asalma](https://discuss.elastic.co/u/asalma)\
**Post date:** [June 4, 2018, 10:14am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/19 "2018-06-04T10:14:28Z")

</div>

```auto
[2018-06-04T11:33:48,555][ERROR][o.e.b.Bootstrap] Exception
java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:70) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.addFilePermissions(Security.java:307) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:262) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.configure(Security.java:123) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:208) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:323) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) [elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) [elasticsearch-6.2.4.jar:6.2.4]
Caused by: java.nio.file.AccessDeniedException: /data/elasticsearch
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) ~[?:1.8.0_171]
        at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:384) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectory(Files.java:674) ~[?:1.8.0_171]
        at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781) ~[?:1.8.0_171]
        at java.nio.file.Files.createDirectories(Files.java:767) ~[?:1.8.0_171]
        at org.elasticsearch.bootstrap.Security.ensureDirectoryExists(Security.java:421) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:68) ~[elasticsearch-6.2.4.jar:6.2.4]
        ... 12 more
[2018-06-04T11:33:48,566][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:125) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:112) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.2.4.jar:6.2.4]
Caused by: java.lang.IllegalStateException: Unable to access 'path.data' (/data/elasticsearch)
        at org.elasticsearch.bootstrap.FilePermissionUtils.addDirectoryPath(FilePermissionUtils.java:70) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.addFilePermissions(Security.java:307) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.createPermissions(Security.java:262) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Security.configure(Security.java:123) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:208) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:323) ~[elasticsearch-6.2.4.jar:6.2.4]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:121) ~[elasticsearch-6.2.4.jar:6.2.4]
        ... 6 more
Caused by: java.nio.file.AccessDeniedException: /data/elasticsearch
        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:1.8.0_171]
        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:1.8.0_171]
```

---

<div class="post-metadata">

**Author:** ![jamesspi](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jamesspi/32/24479_2.png) [@jamesspi](https://discuss.elastic.co/u/jamesspi)\
**Post date:** [June 4, 2018, 10:15am UTC](https://discuss.elastic.co/t/cluster-connect-2-nodes/134384/20 "2018-06-04T10:15:51Z")

</div>

I think you are posting the same log every time (the timestamp is the same). Are you going to the end of the file when checking?

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