Curl: (7) failed to connect

brownri · February 15, 2018, 9:30pm

Hello,

I have an application that requires ElasticSearch as one of its components to work with the application. After successfully installing ElasticSearch, my application wants me to run the CURL -XGET command from another server. When I run the command from another server I get curl: (7) Failed connect to "ipaddressfromESserver":9200 Connection refused. I also get the same error message on the server that has ES installed. ElasticSearch 2.4 is hosted on Red Hat 7.2.

What are the potential reasons why I am experiencing this issue?

warkolm · February 15, 2018, 9:32pm

By default Elasticsearch only listens to localhost. You may need to set network.host to something else.

Check out https://www.elastic.co/guide/en/elasticsearch/reference/6.2/network.host.html

brownri · February 15, 2018, 9:36pm

Hello when I type "ipaddressfromESServer" in this forum, I am referring to the ip address of the server. What is consider the localhost? Is the 127.0.0.1 address or you referring to the ip address of the where ES is installed?

brownri · February 15, 2018, 9:56pm

Hello,

How can I get it to listen on the ip address that I installed ES? I review the link provided but I dont understand what to do next?

warkolm · February 15, 2018, 11:38pm

If you're not familiar with localhost, then check out https://whatismyipaddress.com/localhost

You need to set network.host to something, 0.0.0.0 will bind to all IPs and interfaces on the host, if that is what you want.

brownri · February 16, 2018, 2:16am

Thanks for providing the info. I check out localhost earlier. In regards to my issues, I change the network.host to 0.0.0.0. When I enter the following I still receive an error message: [root@OUSNWA2H elasticsearch]# curl -XGET OUSNWA2H:9200
curl: (7) Failed connect to OUSNWA2H:9200; Connection refused
[root@OUSNWA2H elasticsearch]#

How can I get the curl command to use the servername provided. How can I also used the same command with the servername in the syntax from another server?

warkolm · February 16, 2018, 2:52am

What do the logs of Elasticsearch show?

brownri · February 16, 2018, 3:59pm

Which log do you want me to provide?

dadoonet · February 16, 2018, 4:54pm

@warkolm asked for elasticsearch logs.

brownri · February 16, 2018, 5:21pm

Hello,

What location can I find the elasticsearch logs? I installed the application using rpm.

Thanks

brownri · February 16, 2018, 5:27pm

I think I found it. Here is the log:

[root@OUSNWA2H elasticsearch]# vi elasticsearch.log.2018-02-15
[2018-02-15 11:53:37,096][INFO ][node ] [Watcher] stopping ...
[2018-02-15 11:53:37,115][INFO ][node ] [Watcher] stopped
[2018-02-15 11:53:37,115][INFO ][node ] [Watcher] closing ...
[2018-02-15 11:53:37,122][INFO ][node ] [Watcher] closed
[2018-02-15 11:53:38,033][INFO ][node ] [Jawynn Dueck the Iron Christian of Faith] version[2.4.0], pid[29223], build[ce9f0c7/2016-08-29T09:14:17Z]
[2018-02-15 11:53:38,034][INFO ][node ] [Jawynn Dueck the Iron Christian of Faith] initializing ...
[2018-02-15 11:53:38,673][INFO ][plugins ] [Jawynn Dueck the Iron Christian of Faith] modules [reindex, lang-expression, lang-groovy], plugins [], sites []
[2018-02-15 11:53:38,701][INFO ][env ] [Jawynn Dueck the Iron Christian of Faith] using [1] data paths, mounts [[/var (/dev/mapper/rootvg-var)]], net usable_space [5.6gb], net total_space [6.4gb], spins? [possibly], types [xfs]
[2018-02-15 11:53:38,701][INFO ][env ] [Jawynn Dueck the Iron Christian of Faith] heap size [990.7mb], compressed ordinary object pointers [true]
[2018-02-15 11:53:40,668][INFO ][node ] [Jawynn Dueck the Iron Christian of Faith] initialized
[2018-02-15 11:53:40,668][INFO ][node ] [Jawynn Dueck the Iron Christian of Faith] starting ...
[2018-02-15 11:53:40,741][INFO ][transport ] [Jawynn Dueck the Iron Christian of Faith] publish_address {127.0.0.1:9300}, bound_addresses {[::1]:9300}, {127.0.0.1:9300}
[2018-02-15 11:53:40,748][INFO ][discovery ] [Jawynn Dueck the Iron Christian of Faith] elasticsearch/bMO39iuVQyaFHsxXTnxquA
[2018-02-15 11:53:43,803][INFO ][cluster.service ] [Jawynn Dueck the Iron Christian of Faith] new_master {Jawynn Dueck the Iron Christian of Faith}{bMO39iuVQyaFHsxXTnxquA}{127.0.0.1}{127.0.0.1:9300}, reason: zen-disco-join(elected_as_master, [0] joins received)

How do I get to see my node and not random nodes?

brownri · February 16, 2018, 5:28pm

[root@OUSNWA2H elasticsearch]# vi elasticsearch.log.2018-02-15
[2018-02-15 21:05:59,753][INFO ][node ] [Power Broker] stopped
[2018-02-15 21:05:59,753][INFO ][node ] [Power Broker] closing ...
[2018-02-15 21:05:59,758][INFO ][node ] [Power Broker] closed
[2018-02-15 21:06:00,530][INFO ][node ] [Professor X] version[2.4.0], pid[19297], build[ce9f0c7/2016-08-29T09:14:17Z]
[2018-02-15 21:06:00,531][INFO ][node ] [Professor X] initializing ...
[2018-02-15 21:06:01,065][INFO ][plugins ] [Professor X] modules [reindex, lang-expression, lang-groovy], plugins [], sites []
[2018-02-15 21:06:01,087][INFO ][env ] [Professor X] using [1] data paths, mounts [[/var (/dev/mapper/rootvg-var)]], net usable_space [5.6gb], net total_space [6.4gb], spins? [possibly], types [xfs]
[2018-02-15 21:06:01,087][INFO ][env ] [Professor X] heap size [990.7mb], compressed ordinary object pointers [true]
[2018-02-15 21:06:02,710][INFO ][node ] [Professor X] initialized
[2018-02-15 21:06:02,710][INFO ][node ] [Professor X] starting ...
[2018-02-15 21:06:02,781][INFO ][transport ] [Professor X] publish_address {127.0.0.1:9300}, bound_addresses {[::1]:9300}, {127.0.0.1:9300}
[2018-02-15 21:06:02,787][INFO ][discovery ] [Professor X] elasticsearch/ykNJ2ybxQxuppXR8yTvzoA
[2018-02-15 21:06:05,833][INFO ][cluster.service ] [Professor X] new_master {Professor X}{ykNJ2ybxQxuppXR8yTvzoA}{127.0.0.1}{127.0.0.1:9300}, reason: zen-disco-join(elected_as_master, [0] joins received)
[2018-02-15 21:06:05,854][INFO ][http ] [Professor X] publish_address {127.0.0.1:9200}, bound_addresses {[::1]:9200}, {127.0.0.1:9200}
[2018-02-15 21:06:05,854][INFO ][node ] [Professor X] started
[2018-02-15 21:06:05,868][INFO ][gateway ] [Professor X] recovered [0] indices into cluster_state

brownri · February 16, 2018, 5:29pm

/[root@OUSNWA2H elasticsearch]# vi elasticsearch.log
[2018-02-16 10:19:05,405][WARN ][http.netty ] [Professor X] Caught exception while handling client http traffic, closing connection [id: 0xab749283, /0:0:0:0:0:0:0:1:56482 => /0:0:0:0:0:0:0:1:9200]
java.lang.IllegalArgumentException: empty text
at org.jboss.netty.handler.codec.http.HttpVersion.(HttpVersion.java:89)
at org.jboss.netty.handler.codec.http.HttpVersion.valueOf(HttpVersion.java:62)
at org.jboss.netty.handler.codec.http.HttpRequestDecoder.createMessage(HttpRequestDecoder.java:75)
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:191)
at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:102)
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500)
at org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:485)
at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:75)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)
at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)/

Is this what you mean? @dadoonet

dadoonet · February 16, 2018, 6:10pm

Please format your code 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
```

Please edit your posts.

Anyway your server is listening here on 127.0.0.1:9200. So the only way to access it is locally with curl 127.0.0.1:9200/.

If you want to be able to access it from another machine, then you need to configure properly what @warkolm told you

brownri · February 16, 2018, 6:52pm

Thanks....I review what @warkolm mentioned. Can you provide an example?

brownri · February 16, 2018, 6:55pm

Hello,

I do not understand what you mean by editing my code. I provide the logs not code is there a different method to do so?

Thanks

dadoonet · February 16, 2018, 10:48pm

Format your logs if you prefer.

dadoonet · February 16, 2018, 10:48pm

What did you do to follow what Mark wrote?

system · March 16, 2018, 10:48pm

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.

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Curl: (7) failed to connect

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