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From Timothy Garza <timothy.ga...@collinsongroup.com>
Subject Flume Exception - http source
Date Thu, 12 Nov 2015 21:59:29 GMT
Hi Flumers

I’m new to Flume so please go easy on me, but this is a placeholder for those that follow.

I’m seeing the following Exception when configuring a http source for Flume v1.6.0, pointing
at an externally hosted web API I know I can connect to, and GET/POST to otherwise

15/11/12 21:23:34 ERROR lifecycle.LifecycleSupervisor: Unable to start EventDrivenSourceRunner:
{ source:org.apache.flume.source.http.HTTPSource{name:<source-name>,state:IDLE} } -
Exception follows.
java.lang.IllegalStateException: Running HTTP Server found in source: <source-name>
before I started one.Will not attempt to start.  “<--Exception text!!!”
        at com.google.common.base.Preconditions.checkState(Preconditions.java:145)
        at org.apache.flume.source.http.HTTPSource.start(HTTPSource.java:176)
        at org.apache.flume.source.EventDrivenSourceRunner.start(EventDrivenSourceRunner.java:44)
        at org.apache.flume.lifecycle.LifecycleSupervisor$MonitorRunnable.run(LifecycleSupervisor.java:251)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

Here are my config lines for the Flume source:
flume-ng agent

<Flume-Agent>.sources.<source-name>.type = http
<Flume-Agent>.sources.<source-name>.port = 443
<Flume-Agent>.sources.<source-name>.bind = https://<url<https://%3curl>
to a perfectly healthy web API> <-- serving JSON data
<Flume-Agent>.sources.<source-name>.handler = org.apache.flume.source.http.JSONHandler
<Flume-Agent>.sources.<source-name>.selector.type = replicating <-- multiple

Now I’ve seen others have had to recompile the Flume Jar to resolve this but is that really
what’s going on here?

Apart from the Exceptions, what other logging will help diagnose this?

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