Hiroaki Kawai created CLOUDSTACK-487:
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Summary: 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
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.
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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