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From "Joshua Andrews (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPASYNC-30) Connection already open error on some requests
Date Thu, 16 May 2013 00:49:16 GMT

    [ https://issues.apache.org/jira/browse/HTTPASYNC-30?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13659090#comment-13659090
] 

Joshua Andrews commented on HTTPASYNC-30:
-----------------------------------------

Hey Oleg,

I've updated to beta4, and ported all of my code to use the new api, it's much cleaner.

I didn't test the deprecated PoolingClientAsyncConnectionManager, only the new PoolingNHttpClientConnectionManager
- which I can confirm works very well.

To give you some insight, I'm using akka+scala+a futures bridge, not ideal, but it works.

Thanks so much for your work on HttpClient over the years, Oleg!
                
> Connection already open error on some requests
> ----------------------------------------------
>
>                 Key: HTTPASYNC-30
>                 URL: https://issues.apache.org/jira/browse/HTTPASYNC-30
>             Project: HttpComponents HttpAsyncClient
>          Issue Type: Bug
>    Affects Versions: 4.0-beta3
>            Reporter: Mark Greene
>            Priority: Minor
>
> I apologize in advance for not providing a unit test or steps to reproduce but this is
the first time I've seen this happen in my production environment.
> The only context I can really provide is that out of the roughly 7 million async http
calls a day my app makes this is the first time I've seen the error. Additionally, the URI
I was attempting to hit had made successful calls leading up to the error. The status code
that is to be returned from this URI is 204.
> Stack trace is:
>  java.lang.IllegalStateException: Connection already open
>         at org.apache.http.impl.nio.conn.ManagedClientAsyncConnectionImpl.open(ManagedClientAsyncConnectionImpl.java:305)
>         at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.connectionRequestCompleted(DefaultAsyncRequestDirector.java:568)
>         at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.access$000(DefaultAsyncRequestDirector.java:95)
>         at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector$InternalFutureCallback.completed(DefaultAsyncRequestDirector.java:609)
>         at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector$InternalFutureCallback.completed(DefaultAsyncRequestDirector.java:606)
>         at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:109)
>         at org.apache.http.impl.nio.conn.PoolingClientAsyncConnectionManager$InternalPoolEntryCallback.completed(PoolingClientAsyncConnectionManager.java:303)
>         at org.apache.http.impl.nio.conn.PoolingClientAsyncConnectionManager$InternalPoolEntryCallback.completed(PoolingClientAsyncConnectionManager.java:285)
>         at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:109)
>         at org.apache.http.nio.pool.AbstractNIOConnPool.processPendingRequests(AbstractNIOConnPool.java:267)
>         at org.apache.http.nio.pool.AbstractNIOConnPool.lease(AbstractNIOConnPool.java:192)
>         at org.apache.http.impl.nio.conn.PoolingClientAsyncConnectionManager.leaseConnection(PoolingClientAsyncConnectionManager.java:176)
>         at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.requestConnection(DefaultAsyncRequestDirector.java:629)
>         at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.start(DefaultAsyncRequestDirector.java:233)
>         at org.apache.http.impl.nio.client.AbstractHttpAsyncClient.execute(AbstractHttpAsyncClient.java:540)
>         at org.apache.http.impl.nio.client.AbstractHttpAsyncClient.execute(AbstractHttpAsyncClient.java:554)
>         at org.apache.http.impl.nio.client.AbstractHttpAsyncClient.execute(AbstractHttpAsyncClient.java:584)
>         at org.apache.http.impl.nio.client.AbstractHttpAsyncClient.execute(AbstractHttpAsyncClient.java:569)

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