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From Alex Soto <alex.s...@envieta.com>
Subject Netty4-HTTP - synchronous - No response received from remote server error
Date Thu, 30 Nov 2017 14:22:33 GMT
Hello,

I am using Camel 2.17.4, I have a route initiating a request/response  netty4-http call:

<to uri="netty4-http:{{oozie.service.url}}/jobs?action=start&amp;headerFilterStrategy=#headerFilter&amp;throwExceptionOnFailure=false&amp;synchronous=true"/>
<camel:convertBodyTo type="String"/>
<log message="Oozie Response: ${body}"/>

First problem is that the synchronous=true is passed as query parameter to the remote server,
when it should be used to configure the endpoint.

2017-11-30 09:01:07,921 | DEBUG | yClientTCPWorker | 51 - org.apache.camel.camel-netty4 -
2.17.4 | Channel: [id: 0x5d15a2da, L:/192.168.56.1:56875 - R:quickstart.cloudera/192.168.56.101:11000]
writing body: DefaultFullHttpRequest(decodeResult: success, version: HTTP/1.1, content: UnpooledUnsafeNoCleanerDirectByteBuf(ridx:
0, widx: 1714, cap: 1714))
POST http://quickstart.cloudera:11000/oozie/v2/jobs?action=start&synchronous=true HTTP/1.1
Content-Length: 1714
Content-Type: application/xml
Host: quickstart.cloudera:11000
Connection: keep-alive

Second problem is that even though the server is actually responding, I am getting asynchronous
error:

2017-11-30 09:01:08,359 | DEBUG | yClientTCPWorker | 49 - org.apache.camel.camel-core - 2.17.4
| Http responseCode: 201
2017-11-30 09:01:08,361 | INFO  | pool-50-thread-1 | 49 - org.apache.camel.camel-core - 2.17.4
| ID-Alexs-Laptop-local-56143-1512049637396-7-2 >>> (submitSparkQueriesWF) convertBodyTo[String]
--> log[Oozie Response: ${body}] <<<, Headers:{CamelHttpResponseCode=201, CamelHttpResponseText=Created,
Content-Type=application/json;charset=UTF-8}, BodyType:String, Body:{"id":"0000002-171129163622279-oozie-oozi-W"}
2017-11-30 09:01:08,362 | INFO  | pool-50-thread-1 | 49 - org.apache.camel.camel-core - 2.17.4
| Oozie Response: {"id":"0000002-171129163622279-oozie-oozi-W”}

Some time later, I get error:

2017-11-30 09:02:08,375 | ERROR | pool-50-thread-1 | 49 - org.apache.camel.camel-core - 2.17.4
| Failed delivery for (MessageId: ID-Alexs-Laptop-local-56143-1512049637396-7-4 on ExchangeId:
ID-Alexs-Laptop-local-56143-1512049637396-7-2). Exhausted after delivery attempt: 1 caught:
org.apache.camel.CamelExchangeException: No response received from remote server: quickstart.cloudera:11000.
Exchange[ID-Alexs-Laptop-local-56143-1512049637396-7-2]
...
Stacktrace
---------------------------------------------------------------------------------------------------------------------------------------
org.apache.camel.CamelExchangeException: No response received from remote server: quickstart.cloudera:11000.
Exchange[ID-Alexs-Laptop-local-56143-1512049637396-7-2]
	at org.apache.camel.component.netty4.handlers.ClientChannelHandler.channelInactive(ClientChannelHandler.java:130)[51:org.apache.camel.camel-netty4:2.17.4]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:241)[32:io.netty.transport:4.0.43.Final]

Notice the error occurs in a different thread.
I don’t know why this error is occurring because there is a response,  and why is it not
handling the exchange synchronous ?


Best regards,
Alex soto




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