Not able to query created datasource

Mahesh Abnave

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Jul 15, 2016, 7:31:04 AM7/15/16

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I have run a non-hadoop index task which resulted in the creation of data source called "websites". I can see the data source listed in the coordinator console.

Now I am trying to query some data. I have created a query json and executing following query from putty to my Ubuntu machine running single node druid cluster:

user@machine:/opt/druid-0.9.1.1$ sudo curl -X 'POST' -H 'Content-Type:application/json' -d @quickstart/websites-ds-metadata-query.json localhost:8081/druid/v2/?pretty

However this gave me following output:

<html>

<head>

<title>Error 404 </title>

</head>

<body>

<h2>HTTP ERROR: 404</h2>

<p>Problem accessing /druid/v2/. Reason:

<pre> Not Found</pre></p>

<hr /><i><small>Powered by Jetty://</small></i>

</body>

</html>

So I tried running following query (as suggested here) to check if it returns the datasource:

user@machine:/opt/druid-0.9.1.1$ sudo curl -X 'GET' localhost:8081/druid/v2/datasources

that too gave me following output:

<html>

<head>

<title>Error 404 </title>

</head>

<body>

<h2>HTTP ERROR: 404</h2>

<p>Problem accessing /druid/v2/datasources. Reason:

<pre> Not Found</pre></p>

<hr /><i><small>Powered by Jetty://</small></i>

</body>

</html>

I must be missing something. What is that?

Slim Bouguerra

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Jul 15, 2016, 10:52:08 AM7/15/16

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do you see any thing on the broker logs ?

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Fangjin Yang

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Jul 17, 2016, 1:58:50 PM7/17/16

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Hi Mahesh, are you sure you have the broker running on 8081? It seems like you are running a queries against the coordinator.

Gian Merlino

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Jul 17, 2016, 2:17:27 PM7/17/16

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Hey Mahesh,

The default broker port is 8082, try that instead.

Gian

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Mahesh Abnave

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Jul 18, 2016, 4:20:34 AM7/18/16

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Ohh thanks all. It seems that I was indeed querying to coordinator, not broker.

Also it will be a lot of help if there is a single page listing all default ports. I just googled and came across this page.

It lists following ports:

1527 (Derby; not needed if you are using a separate metadata store like MySQL or PostgreSQL)
2181 (ZooKeeper; not needed if you are using a separate zookeeper cluster)
8081 (Druid Coordinator)
8090 (Druid Overlord)

8082 (Druid Broker)
9095 (Pivot)

8083 (Druid Historical)
8091 (Druid Middle Manager)
8100–8199 (Druid Peons)
8200 (Tranquility Server)

Does default druid ports are the same as above?

Mahesh Abnave

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Jul 18, 2016, 4:30:38 AM7/18/16

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Ohhh found below tut which lists druid default ports: http://druid.io/docs/latest/tutorials/cluster.html

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