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Can't bridge two Knative channels with new component #163

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nicolaferraro opened this issue Oct 16, 2019 · 2 comments · Fixed by #166
Closed

Can't bridge two Knative channels with new component #163

nicolaferraro opened this issue Oct 16, 2019 · 2 comments · Fixed by #166

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@nicolaferraro
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I'm writing this integration:

from('knative:channel/messages')
  .transform().simple('transformed ${body}')
  .log('${body}')
  .to('knative:channel/words')

The messages channel is fed by another integration (from('timer:tick').setBody().constant("message").to('knative:channel/messages')).

When the integration doing the bridge receives the message, it goes in error:

knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration 2019-10-16 15:53:15.596 INFO  [vert.x-eventloop-thread-0] route1 - transformed message
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration 2019-10-16 15:53:15.601 WARN  [vert.x-eventloop-thread-0] KnativeHttpConsumer - Caused by: [org.apache.camel.NoTypeConversionAvailableException - No type converter available to convert from type: null to the required type: byte[] with value null]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration org.apache.camel.NoTypeConversionAvailableException: No type converter available to convert from type: null to the required type: byte[] with value null
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:139) ~[org.apache.camel.camel-base-3.0.0-RC1.jar:3.0.0-RC1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:130) ~[org.apache.camel.camel-base-3.0.0-RC1.jar:3.0.0-RC1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.component.knative.http.KnativeHttpConsumer.computeResponseBody(KnativeHttpConsumer.java:218) ~[org.apache.camel.k.camel-knative-http-1.0.5-SNAPSHOT.jar:1.0.5-SNAPSHOT]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.component.knative.http.KnativeHttpConsumer.lambda$null$0(KnativeHttpConsumer.java:102) ~[org.apache.camel.k.camel-knative-http-1.0.5-SNAPSHOT.jar:1.0.5-SNAPSHOT]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.impl.engine.DefaultReactiveExecutor$2.run(DefaultReactiveExecutor.java:103) ~[org.apache.camel.camel-base-3.0.0-RC1.jar:3.0.0-RC1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.impl.engine.DefaultReactiveExecutor$Worker.schedule(DefaultReactiveExecutor.java:185) ~[org.apache.camel.camel-base-3.0.0-RC1.jar:3.0.0-RC1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.impl.engine.DefaultReactiveExecutor.schedule(DefaultReactiveExecutor.java:67) ~[org.apache.camel.camel-base-3.0.0-RC1.jar:3.0.0-RC1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.processor.Pipeline.lambda$doProcess$3(Pipeline.java:104) ~[org.apache.camel.camel-base-3.0.0-RC1.jar:3.0.0-RC1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at org.apache.camel.component.knative.http.KnativeHttpProducer.lambda$process$0(KnativeHttpProducer.java:159) ~[org.apache.camel.k.camel-knative-http-1.0.5-SNAPSHOT.jar:1.0.5-SNAPSHOT]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.HttpContext.handleDispatchResponse(HttpContext.java:308) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.HttpContext.execute(HttpContext.java:295) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.HttpContext.next(HttpContext.java:270) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.predicate.PredicateInterceptor.handle(PredicateInterceptor.java:69) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.predicate.PredicateInterceptor.handle(PredicateInterceptor.java:32) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.HttpContext.next(HttpContext.java:267) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.HttpContext.fire(HttpContext.java:277) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.HttpContext.dispatchResponse(HttpContext.java:238) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.ext.web.client.impl.HttpContext.lambda$null$2(HttpContext.java:367) ~[io.vertx.vertx-web-client-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.core.impl.ContextImpl.executeTask(ContextImpl.java:369) ~[io.vertx.vertx-core-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.vertx.core.impl.EventLoopContext.lambda$executeAsync$0(EventLoopContext.java:38) ~[io.vertx.vertx-core-3.8.1.jar:3.8.1]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) [io.netty.netty-common-4.1.39.Final.jar:4.1.39.Final]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:416) [io.netty.netty-common-4.1.39.Final.jar:4.1.39.Final]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:515) [io.netty.netty-transport-4.1.39.Final.jar:4.1.39.Final]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918) [io.netty.netty-common-4.1.39.Final.jar:4.1.39.Final]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [io.netty.netty-common-4.1.39.Final.jar:4.1.39.Final]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [io.netty.netty-common-4.1.39.Final.jar:4.1.39.Final]
knativemultihop2-cvfxj-deployment-868df47c-srpj8 integration    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
@nicolaferraro
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For completeness, here's the exchange before it goes in error (log with showHeaders=true):

knativemultihop2-68fl9-deployment-6854d7d66b-hp5bw integration 2019-10-16 21:02:44.294 INFO  [vert.x-eventloop-thread-0] info - Exchange[ExchangePattern: InOut, Headers: {Accept-Encoding=gzip, CamelHttpMethod=POST, CamelHttpPath=, CamelHttpQuery=null, CamelHttpUri=/, Ce-Knativehistory=messages-kn-channel.default.svc.cluster.local, Content-Length=7, Forwarded=for=172.17.0.18;proto=http, Host=knativemultihop2.default.svc.cluster.local, User-Agent=Go-http-client/1.1, X-B3-Parentspanid=5c2461d2cf110fb1, X-B3-Sampled=0, X-B3-Spanid=26c8336c27f91d46, X-B3-Traceid=aae915ed39a10a55044014e1e25f271d, X-Envoy-Decorator-Operation=knativemultihop2-68fl9.default.svc.cluster.local:80/*, X-Envoy-Expected-Rq-Timeout-Ms=600000, X-Envoy-Internal=true, X-Forwarded-For=172.17.0.18, 172.17.0.9, X-Forwarded-Proto=http, X-Request-Id=9dff4a19-4d18-9528-b96c-3b68b729c3f1}, BodyType: String, Body: message]

cc: @lburgazzoli

@nicolaferraro
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But I guess it's related to the reply expected by the consumer, that is missing when you contact a channel (replies with 204, no content).

lburgazzoli added a commit to lburgazzoli/apache-camel-k-runtime that referenced this issue Oct 17, 2019
@lburgazzoli
Can't bridge two Knative channels with new component apache#163
1adf649
@lburgazzoli lburgazzoli mentioned this issue Oct 17, 2019
Merged
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Can't bridge two Knative channels with new component lburgazzoli/apache-camel-k-runtime
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@nicolaferraro