# Likely root cause: java.nio.file.FileSystemException: /usr/share/elasticsearch/data/nodes/0: Not a directory

**URL:** <https://discuss.elastic.co/t/likely-root-cause-java-nio-file-filesystemexception-usr-share-elasticsearch-data-nodes-0-not-a-directory/358531>\
**Category:** Elasticsearch\
**Tags:** docker\
**Created:** [May 1, 2024, 3:08am UTC](https://discuss.elastic.co/t/likely-root-cause-java-nio-file-filesystemexception-usr-share-elasticsearch-data-nodes-0-not-a-directory/358531 "2024-05-01T03:08:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![wuming1](https://avatars.discourse-cdn.com/v4/letter/w/7c8e57/32.png) [@wuming1](https://discuss.elastic.co/u/wuming1)\
**Post date:** [May 1, 2024, 3:08am UTC](https://discuss.elastic.co/t/likely-root-cause-java-nio-file-filesystemexception-usr-share-elasticsearch-data-nodes-0-not-a-directory/358531/1 "2024-05-01T03:08:04Z")

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I don't know why this mistake happened.  
Read a lot of posts on the internet, rarely find the same mistakes as me.  
Because I just started learning to use this, but the simple first step can not run.  
This is the command I click to run on the docker.

```auto
docker run -d \
	--name es \
    -e "ES_JAVA_OPTS=-Xms512m -Xmx512m" \
    -e "discovery.type=single-node" \
    -v es-data:/usr/share/elasticsearch/data \
    -v es-plugins:/usr/share/elasticsearch/plugins \
    --privileged \
    --network es-net \
    -p 9200:9200 \
    -p 9300:9300 \
elasticsearch:7.12.1

```

This is his run error

```auto
uncaught exception in thread [main]
ElasticsearchException[failed to bind service]; nested: FileSystemException[/usr/share/elasticsearch/data/nodes/0: Not a directory];
Likely root cause: java.nio.file.FileSystemException: /usr/share/elasticsearch/data/nodes/0: Not a directory
        at java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:100)
        at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:106)
        at java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
        at java.base/sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:396)
        at java.base/java.nio.file.Files.createDirectory(Files.java:694)
        at java.base/java.nio.file.Files.createAndCheckIsDirectory(Files.java:801)
        at java.base/java.nio.file.Files.createDirectories(Files.java:787)
        at org.elasticsearch.env.NodeEnvironment.lambda$new$0(NodeEnvironment.java:265)
        at org.elasticsearch.env.NodeEnvironment$NodeLock.<init>(NodeEnvironment.java:202)
        at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:262)
        at org.elasticsearch.node.Node.<init>(Node.java:352)
        at org.elasticsearch.node.Node.<init>(Node.java:278)
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:217)
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:217)
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:397)
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159)
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150)
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:75)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:116)
        at org.elasticsearch.cli.Command.main(Command.java:79)
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115)
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:81)
For complete error details, refer to the log at /usr/share/elasticsearch/logs/docker-cluster.log

```

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<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [May 1, 2024, 8:12am UTC](https://discuss.elastic.co/t/likely-root-cause-java-nio-file-filesystemexception-usr-share-elasticsearch-data-nodes-0-not-a-directory/358531/2 "2024-05-01T08:12:07Z")

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Welcome.

What does your local es-data dir is looking like?

BTW use the latest 7.17 version.

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<div class="post-metadata">

**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [May 1, 2024, 8:16am UTC](https://discuss.elastic.co/t/likely-root-cause-java-nio-file-filesystemexception-usr-share-elasticsearch-data-nodes-0-not-a-directory/358531/3 "2024-05-01T08:16:29Z")

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This means you've upgraded this node to 8.x and then tried to downgrade it again, which won't work. Run `cat /usr/share/elasticsearch/data/nodes` to see more details.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 29, 2024, 8:16am UTC](https://discuss.elastic.co/t/likely-root-cause-java-nio-file-filesystemexception-usr-share-elasticsearch-data-nodes-0-not-a-directory/358531/4 "2024-05-29T08:16:56Z")

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