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https://issues.apache.org/jira/browse/CLOUDSTACK-487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13500383#comment-13500383
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Eric Dey commented on CLOUDSTACK-487:
-------------------------------------
I am currently out of the office and will return on August 10th. If you require
immediate support on a Caringo product, please use our help web site at:
[1]https://support.caringo.com/
-Eric
----------------------------------
Eric Dey [2]<eric....@caringo.com>
Caringo, Inc. (512)782-9902
----------------------------------------------------------------------------------------
[1] https://support.caringo.com/
[2] mailto:eric....@caringo.com
> HttpClient in multithreaded environment
> ---------------------------------------
>
> Key: CLOUDSTACK-487
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-487
> Project: CloudStack
> Issue Type: Bug
> Components: Network Devices
> Affects Versions: 4.0.0, 4.0.1, 4.1.0
> Environment: Nicira nvp plugin in use.
> Reporter: Hiroaki Kawai
> Assignee: Hugo Trippaers
> Labels: patch
>
> Running cloudstack with nicira nvp plugin, I got following error. It seems
> that HttpClient in servlet must use MultiThreadedHttpConnectionManager
> explicitly. Patch will be submitted in reviewboard.
> https://reviews.apache.org/r/8075/
> 2012-11-14 18:21:51,576 WARN
> [commons.httpclient.SimpleHttpConnectionManager] (DirectAgent-62:null)
> SimpleHttpConnectionManager being used incorrectly. Be
> sure that HttpMethod.releaseConnection() is always called and that only one
> thread and/or method is using this connection manager at a time.
> 2012-11-14 18:21:52,017 WARN [agent.manager.DirectAgentAttache]
> (DirectAgent-62:null) Seq 5-847183891: Exception Caught while executing
> command
> java.lang.IllegalStateException: Connection is not open
> at
> org.apache.commons.httpclient.HttpConnection.assertOpen(HttpConnection.java:1277)
> at
> org.apache.commons.httpclient.HttpConnection.write(HttpConnection.java:974)
> at
> org.apache.commons.httpclient.HttpConnection.write(HttpConnection.java:943)
> at
> org.apache.commons.httpclient.HttpConnection.print(HttpConnection.java:1033)
> at
> org.apache.commons.httpclient.HttpMethodBase.writeRequestHeaders(HttpMethodBase.java:2187)
> at
> org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:2060)
> at
> org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1096)
> at
> org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)
> at
> org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
> at
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
> at
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)
> at
> com.cloud.network.nicira.NiciraNvpApi.executeMethod(NiciraNvpApi.java:344)
> at
> com.cloud.network.nicira.NiciraNvpApi.executeDeleteObject(NiciraNvpApi.java:294)
> at
> com.cloud.network.nicira.NiciraNvpApi.deleteLogicalSwitchPort(NiciraNvpApi.java:172)
> at
> com.cloud.network.resource.NiciraNvpResource.executeRequest(NiciraNvpResource.java:286)
> at
> com.cloud.network.resource.NiciraNvpResource.executeRequest(NiciraNvpResource.java:192)
> at
> com.cloud.network.resource.NiciraNvpResource.executeRequest(NiciraNvpResource.java:172)
> at
> com.cloud.agent.manager.DirectAgentAttache$Task.run(DirectAgentAttache.java:191)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$101(ScheduledThreadPoolExecutor.java:165)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:679)
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