# Can't connect to localhost:9200

**URL:** https://discuss.elastic.co/t/cant-connect-to-localhost-9200/158744
**Category:** Elasticsearch
**Created:** [November 29, 2018, 11:37am UTC](https://discuss.elastic.co/t/cant-connect-to-localhost-9200/158744 "2018-11-29T11:37:28Z")
**Posts on this page:** 1
**Showing post:** 5

<div class="post-metadata">

### Author: ![tomthecat](https://avatars.discourse-cdn.com/v4/letter/t/df705f/32.png) [@tomthecat](https://discuss.elastic.co/u/tomthecat)
#### Post date: [November 29, 2018, 2:07pm UTC](https://discuss.elastic.co/t/cant-connect-to-localhost-9200/158744/5 "2018-11-29T14:07:21Z")

</div>

Ok, I was able to track down (and solve) the problem.

I started the elasticsearch service with `sudo -u elasticsearch /usr/share/elasticsearch/bin/elasticsearch` and received

```auto
[2018-11-29T14:54:48,525][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [xxx] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalArgumentException: node settings must not contain any index level settings
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:140) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:127) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124) ~[elasticsearch-cli-6.5.1.jar:6.5.1]
        at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-6.5.1.jar:6.5.1]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:86) ~[elasticsearch-6.5.1.jar:6.5.1]
Caused by: java.lang.IllegalArgumentException: node settings must not contain any index level settings
        at org.elasticsearch.common.settings.SettingsModule.<init>(SettingsModule.java:142) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.node.Node.<init>(Node.java:373) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.node.Node.<init>(Node.java:265) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:212) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:212) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:333) ~[elasticsearch-6.5.1.jar:6.5.1]
        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-6.5.1.jar:6.5.1]
        ... 6 more

```

With this information I was pointed to [Node settings must not contain any index level setting](https://discuss.elastic.co/t/node-settings-must-not-contain-any-index-level-setting/109573) and found two index entries in my `elasticsearch.yml`:

```auto
index.number_of_shards: 3
index.number_of_replicas: 2

```

After commenting out these lines everything seems back to normal.

---

_[View the full topic](https://discuss.elastic.co/t/cant-connect-to-localhost-9200/158744)._