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Posted to dev@hc.apache.org by "zhaoqz (Created) (JIRA)" <ji...@apache.org> on 2012/04/20 10:38:41 UTC
[jira] [Created] (HTTPASYNC-18) Create multiple client object will
deadlock
Create multiple client object will deadlock
-------------------------------------------
Key: HTTPASYNC-18
URL: https://issues.apache.org/jira/browse/HTTPASYNC-18
Project: HttpComponents HttpAsyncClient
Issue Type: Bug
Affects Versions: 4.0-beta1
Environment: Windows 7
Reporter: zhaoqz
Priority: Critical
Found one Java-level deadlock:
=============================
"I/O dispatcher 20":
waiting to lock monitor 0x0fc87f4c (object 0x299028b8, a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector),
which is held by "I/O dispatcher 18"
"I/O dispatcher 18":
waiting to lock monitor 0x03fd6cfc (object 0x2b2d57b8, a org.apache.http.concurrent.BasicFuture),
which is held by "I/O dispatcher 20"
Java stack information for the threads listed above:
===================================================
"I/O dispatcher 20":
at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.connectionRequestCompleted(DefaultAsyncRequestDirector.java:508)
- waiting to lock <0x299028b8> (a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector)
at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.access$000(DefaultAsyncRequestDirector.java:92)
at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector$InternalFutureCallback.completed(DefaultAsyncRequestDirector.java:552)
at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector$InternalFutureCallback.completed(DefaultAsyncRequestDirector.java:549)
at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:109)
- locked <0x2b2d57b8> (a org.apache.http.concurrent.BasicFuture)
at org.apache.http.impl.nio.conn.PoolingClientAsyncConnectionManager$InternalPoolEntryCallback.completed(PoolingClientAsyncConnectionManager.java:303)
at org.apache.http.impl.nio.conn.PoolingClientAsyncConnectionManager$InternalPoolEntryCallback.completed(PoolingClientAsyncConnectionManager.java:285)
at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:109)
- locked <0x2b2d57e0> (a org.apache.http.concurrent.BasicFuture)
at org.apache.http.nio.pool.RouteSpecificPool.completed(RouteSpecificPool.java:154)
at org.apache.http.nio.pool.AbstractNIOConnPool.requestCompleted(AbstractNIOConnPool.java:349)
at org.apache.http.nio.pool.AbstractNIOConnPool$InternalSessionRequestCallback.completed(AbstractNIOConnPool.java:581)
at org.apache.http.impl.nio.reactor.SessionRequestImpl.completed(SessionRequestImpl.java:130)
- locked <0x2b2d5818> (a org.apache.http.impl.nio.reactor.SessionRequestImpl)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processNewChannels(AbstractIOReactor.java:424)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:291)
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:106)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:601)
at java.lang.Thread.run(Unknown Source)
"I/O dispatcher 18":
at org.apache.http.concurrent.BasicFuture.cancel(BasicFuture.java:129)
- waiting to lock <0x2b2d57b8> (a org.apache.http.concurrent.BasicFuture)
at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.releaseResources(DefaultAsyncRequestDirector.java:368)
at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.failed(DefaultAsyncRequestDirector.java:393)
- locked <0x299028b8> (a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector)
at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.responseCompleted(DefaultAsyncRequestDirector.java:467)
- locked <0x299028b8> (a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector)
at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.processResponse(HttpAsyncRequestExecutor.java:384)
at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.inputReady(HttpAsyncRequestExecutor.java:268)
at org.apache.http.impl.nio.client.LoggingAsyncRequestExecutor.inputReady(LoggingAsyncRequestExecutor.java:99)
at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:192)
at org.apache.http.impl.nio.DefaultHttpClientIODispatch.onInputReady(DefaultHttpClientIODispatch.java:125)
at org.apache.http.impl.nio.DefaultHttpClientIODispatch.onInputReady(DefaultHttpClientIODispatch.java:49)
at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:112)
at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:160)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:342)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:320)
at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:280)
at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:106)
at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:601)
at java.lang.Thread.run(Unknown Source)
Found 2 deadlocks.
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[jira] [Resolved] (HTTPASYNC-18) Create multiple client object will
deadlock
Posted by "Oleg Kalnichevski (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HTTPASYNC-18?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Oleg Kalnichevski resolved HTTPASYNC-18.
----------------------------------------
Resolution: Fixed
Fix Version/s: 4.0-beta2
I believe I have fixed the issue by eliminating the possibility of a deadlock between the connection request Future and the DefaultAsyncRequestDirector.
Please re-test your application against the latest snapshot from SVN trunk and confirm the fix.
Oleg
> Create multiple client object will deadlock
> -------------------------------------------
>
> Key: HTTPASYNC-18
> URL: https://issues.apache.org/jira/browse/HTTPASYNC-18
> Project: HttpComponents HttpAsyncClient
> Issue Type: Bug
> Affects Versions: 4.0-beta1
> Environment: Windows 7
> Reporter: zhaoqz
> Priority: Critical
> Fix For: 4.0-beta2
>
>
> Found one Java-level deadlock:
> =============================
> "I/O dispatcher 20":
> waiting to lock monitor 0x0fc87f4c (object 0x299028b8, a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector),
> which is held by "I/O dispatcher 18"
> "I/O dispatcher 18":
> waiting to lock monitor 0x03fd6cfc (object 0x2b2d57b8, a org.apache.http.concurrent.BasicFuture),
> which is held by "I/O dispatcher 20"
> Java stack information for the threads listed above:
> ===================================================
> "I/O dispatcher 20":
> at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.connectionRequestCompleted(DefaultAsyncRequestDirector.java:508)
> - waiting to lock <0x299028b8> (a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector)
> at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.access$000(DefaultAsyncRequestDirector.java:92)
> at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector$InternalFutureCallback.completed(DefaultAsyncRequestDirector.java:552)
> at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector$InternalFutureCallback.completed(DefaultAsyncRequestDirector.java:549)
> at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:109)
> - locked <0x2b2d57b8> (a org.apache.http.concurrent.BasicFuture)
> at org.apache.http.impl.nio.conn.PoolingClientAsyncConnectionManager$InternalPoolEntryCallback.completed(PoolingClientAsyncConnectionManager.java:303)
> at org.apache.http.impl.nio.conn.PoolingClientAsyncConnectionManager$InternalPoolEntryCallback.completed(PoolingClientAsyncConnectionManager.java:285)
> at org.apache.http.concurrent.BasicFuture.completed(BasicFuture.java:109)
> - locked <0x2b2d57e0> (a org.apache.http.concurrent.BasicFuture)
> at org.apache.http.nio.pool.RouteSpecificPool.completed(RouteSpecificPool.java:154)
> at org.apache.http.nio.pool.AbstractNIOConnPool.requestCompleted(AbstractNIOConnPool.java:349)
> at org.apache.http.nio.pool.AbstractNIOConnPool$InternalSessionRequestCallback.completed(AbstractNIOConnPool.java:581)
> at org.apache.http.impl.nio.reactor.SessionRequestImpl.completed(SessionRequestImpl.java:130)
> - locked <0x2b2d5818> (a org.apache.http.impl.nio.reactor.SessionRequestImpl)
> at org.apache.http.impl.nio.reactor.AbstractIOReactor.processNewChannels(AbstractIOReactor.java:424)
> at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:291)
> at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:106)
> at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:601)
> at java.lang.Thread.run(Unknown Source)
> "I/O dispatcher 18":
> at org.apache.http.concurrent.BasicFuture.cancel(BasicFuture.java:129)
> - waiting to lock <0x2b2d57b8> (a org.apache.http.concurrent.BasicFuture)
> at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.releaseResources(DefaultAsyncRequestDirector.java:368)
> at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.failed(DefaultAsyncRequestDirector.java:393)
> - locked <0x299028b8> (a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector)
> at org.apache.http.impl.nio.client.DefaultAsyncRequestDirector.responseCompleted(DefaultAsyncRequestDirector.java:467)
> - locked <0x299028b8> (a org.apache.http.impl.nio.client.DefaultAsyncRequestDirector)
> at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.processResponse(HttpAsyncRequestExecutor.java:384)
> at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.inputReady(HttpAsyncRequestExecutor.java:268)
> at org.apache.http.impl.nio.client.LoggingAsyncRequestExecutor.inputReady(LoggingAsyncRequestExecutor.java:99)
> at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:192)
> at org.apache.http.impl.nio.DefaultHttpClientIODispatch.onInputReady(DefaultHttpClientIODispatch.java:125)
> at org.apache.http.impl.nio.DefaultHttpClientIODispatch.onInputReady(DefaultHttpClientIODispatch.java:49)
> at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputReady(AbstractIODispatch.java:112)
> at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:160)
> at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:342)
> at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:320)
> at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:280)
> at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:106)
> at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:601)
> at java.lang.Thread.run(Unknown Source)
> Found 2 deadlocks.
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