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From George Reese <george.re...@enstratus.com>
Subject File Descriptor Leaks
Date Sun, 12 Jul 2009 02:44:22 GMT
This is an application that is constantly polling Amazon S3 using the  
jets3t Java wrapper.

Attached is a stack trace of one of the recent failures.

-George

[WARN ] [12 Jul 2009 00:53:49.358] [RestUtils] [Retried connection 6  
times, which exceeds the maximum retry count of 5]
[ERROR] [12 Jul 2009 00:53:49.358] [AmazonS3]  
[org.jets3t.service.S3ServiceException: S3 GET connection failed for  
'/']
org.jets3t.service.S3ServiceException: S3 GET connection failed for '/'
	at  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRequest(RestS3Service.java: 
516)
	at  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRestGet(RestS3Service.java: 
752)
	at  
org 
.jets3t 
.service 
.impl 
.rest.httpclient.RestS3Service.listAllBucketsImpl(RestS3Service.java: 
1041)
	at org.jets3t.service.S3Service.listAllBuckets(S3Service.java:1348)
	at com.enstratus.provider.aws.AmazonS3.listFiles(AmazonS3.java:406)
	at  
com 
.enstratus 
.provisioning.storage.StorageFactory.checkState(StorageFactory.java:55)
	at com.enstratus.monitor.CloudMonitor$1.call(CloudMonitor.java:277)
	at com.enstratus.monitor.CloudMonitor$1.call(CloudMonitor.java:276)
	at com.enstratus.util.Retry.retry(Retry.java:32)
	at com.enstratus.util.Retry.retry(Retry.java:19)
	at com.enstratus.monitor.CloudMonitor.checkStatus(CloudMonitor.java: 
282)
	at com.enstratus.monitor.CloudMonitor.access$000(CloudMonitor.java:41)
	at com.enstratus.monitor.CloudMonitor$2$1.run(CloudMonitor.java:468)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java: 
441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor 
$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor 
$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.SocketException: Too many open files
	at java.net.Socket.createImpl(Socket.java:388)
	at java.net.Socket.getImpl(Socket.java:451)
	at java.net.Socket.bind(Socket.java:565)
	at  
com 
.sun 
.net.ssl.internal.ssl.BaseSSLSocketImpl.bind(BaseSSLSocketImpl.java:95)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.bind(SSLSocketImpl.java: 
45)
	at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)
	at  
sun 
.reflect 
.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 
25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at  
org 
.apache 
.commons 
.httpclient 
.protocol 
.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:139)
	at  
org 
.apache 
.commons 
.httpclient 
.protocol 
.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java: 
130)
	at  
org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java: 
707)
	at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager 
$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java: 
1361)
	at  
org 
.apache 
.commons 
.httpclient 
.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
	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  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRequest(RestS3Service.java: 
342)
	... 18 more
[WARN ] [12 Jul 2009 00:53:49.361] [Retry]  
[com.enstratus.provider.api.CloudException: S3 GET connection failed  
for '/']
[WARN ] [12 Jul 2009 00:53:51.568] [RestUtils] [Retried connection 6  
times, which exceeds the maximum retry count of 5]
[ERROR] [12 Jul 2009 00:53:51.568] [AmazonS3]  
[org.jets3t.service.S3ServiceException: S3 GET connection failed for  
'/']
org.jets3t.service.S3ServiceException: S3 GET connection failed for '/'
	at  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRequest(RestS3Service.java: 
516)
	at  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRestGet(RestS3Service.java: 
752)
	at  
org 
.jets3t 
.service 
.impl 
.rest 
.httpclient.RestS3Service.getBucketLocationImpl(RestS3Service.java:1635)
	at org.jets3t.service.S3Service.getBucketLocation(S3Service.java:2316)
	at com.enstratus.provider.aws.AmazonS3.listFiles(AmazonS3.java:407)
	at  
com 
.enstratus 
.provisioning.storage.StorageFactory.checkState(StorageFactory.java:55)
	at com.enstratus.monitor.CloudMonitor$1.call(CloudMonitor.java:277)
	at com.enstratus.monitor.CloudMonitor$1.call(CloudMonitor.java:276)
	at com.enstratus.util.Retry.retry(Retry.java:32)
	at com.enstratus.util.Retry.retry(Retry.java:19)
	at com.enstratus.monitor.CloudMonitor.checkStatus(CloudMonitor.java: 
282)
	at com.enstratus.monitor.CloudMonitor.access$000(CloudMonitor.java:41)
	at com.enstratus.monitor.CloudMonitor$2$1.run(CloudMonitor.java:468)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java: 
441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor 
$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor 
$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.SocketException: Too many open files
	at java.net.Socket.createImpl(Socket.java:388)
	at java.net.Socket.getImpl(Socket.java:451)
	at java.net.Socket.bind(Socket.java:565)
	at  
com 
.sun 
.net.ssl.internal.ssl.BaseSSLSocketImpl.bind(BaseSSLSocketImpl.java:95)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.bind(SSLSocketImpl.java: 
45)
	at sun.reflect.GeneratedMethodAccessor31.invoke(Unknown Source)
	at  
sun 
.reflect 
.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 
25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at  
org 
.apache 
.commons 
.httpclient 
.protocol 
.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:139)
	at  
org 
.apache 
.commons 
.httpclient 
.protocol 
.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java: 
130)
	at  
org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java: 
707)
	at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager 
$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java: 
1361)
	at  
org 
.apache 
.commons 
.httpclient 
.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
	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  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRequest(RestS3Service.java: 
342)
	... 18 more
[WARN ] [12 Jul 2009 00:53:51.571] [Retry]  
[com.enstratus.provider.api.CloudException: S3 GET connection failed  
for '/']
[WARN ] [12 Jul 2009 00:53:55.587] [RestUtils] [Retried connection 6  
times, which exceeds the maximum retry count of 5]
[ERROR] [12 Jul 2009 00:53:55.587] [AmazonS3]  
[org.jets3t.service.S3ServiceException: S3 GET connection failed for  
'/']
org.jets3t.service.S3ServiceException: S3 GET connection failed for '/'
	at  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRequest(RestS3Service.java: 
516)
	at  
org 
.jets3t 
.service 
.impl.rest.httpclient.RestS3Service.performRestGet(RestS3Service.java: 
752)
	at  
org 
.jets3t 
.service 
.impl 
.rest.httpclient.RestS3Service.listAllBucketsImpl(RestS3Service.java: 
1041)
	at org.jets3t.service.S3Service.listAllBuckets(S3Service.java:1348)
	at com.enstratus.provider.aws.AmazonS3.listFiles(AmazonS3.java:406)
	at  
com 
.enstratus 
.provisioning.storage.StorageFactory.checkState(StorageFactory.java:55)
	at com.enstratus.monitor.CloudMonitor$1.call(CloudMonitor.java:277)
	at com.enstratus.monitor.CloudMonitor$1.call(CloudMonitor.java:276)
	at com.enstratus.util.Retry.retry(Retry.java:32)
	at com.enstratus.util.Retry.retry(Retry.java:19)
	at com.enstratus.monitor.CloudMonitor.checkStatus(CloudMonitor.java: 
282)
	at com.enstratus.monitor.CloudMonitor.access$000(CloudMonitor.java:41)
	at com.enstratus.monitor.CloudMonitor$2$1.run(CloudMonitor.java:468)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java: 
441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor 
$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor 
$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.net.SocketException: Too many open files
	at java.net.Socket.createImpl(Socket.java:388)
	at java.net.Socket.getImpl(Socket.java:451)
	at java.net.Socket.bind(Socket.java:565)
	at  
com 
.sun 
.net.ssl.internal.ssl.BaseSSLSocketImpl.bind(BaseSSLSocketImpl.java:95)
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.bind(SSLSocketImpl.java: 
45)
	at  
com.sun.net.ssl.internal.ssl.SSLSocketImpl.<init>(SSLSocketImpl.java: 
392)
	at  
com 
.sun 
.net 
.ssl 
.internal 
.ssl.SSLSocketFactoryImpl.createSocket(SSLSocketFactoryImpl.java:123)
	at  
org 
.apache 
.commons 
.httpclient 
.protocol 
.SSLProtocolSocketFactory.createSocket(SSLProtocolSocketFactory.java:82)
	at  
org.apache.commons.httpclient.protocol.ControllerThreadSocketFactory 
$1.doit(ControllerThreadSocketFactory.java:91)
	at  
org.apache.commons.httpclient.protocol.ControllerThreadSocketFactory 
$SocketTask.run(ControllerThreadSocketFactory.java:158)
	... 1 more


--
George Reese (george.reese@enstratus.com - Twitter: @GeorgeReese)
Chief Technology Officer, enStratus Networks LLC
p: +1.612.355.5272    m: +1.612.991.4446    f: +1.612.338.5041
enStratus - Confidence in the Cloud - http://www.enstratus.com







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