Ftp connection getting closed when uploading multiple files concurrently to alfresco

[abhinav]

Hi All,

I am doing load testing on Alfresco. I am trying to upload multiple files to alfresco via FTP. I am using JMeter for load testing.
When i am executing the test case with multiple concurrent requests alfresco is closing the connection.

I am my case i am providing a directory uri to JMeter, where there are more than 200+ directories and 5000+ files. JMeter will recursively traverse the inputs and upload them to Alfresco. And in this case many threads will try to upload the same file or folder to alfresco at same time.

I analysed the log in alfresco and found that it is throwing an exception (org.alfresco.jlan.server.filesys.FileExistsException) frequently, and after that connection is getting closed form alfresco side.
See the attached log for details.

What could be the reason here ? Please help. We are in the middle of the test and not able to figure out the exact reason.

We are using alfresco-5.0.a community version. And we are using Amazon S3 mount as repository. i.e. alf_data is pointing to S3 Mount.

Alfresco Log:

04:00:22,421 ERROR [org.alfresco.fileserver] [Sess_FTP70_206.208.106.20] Error from JLAN
org.alfresco.jlan.server.filesys.FileExistsException
at org.alfresco.jlan.server.filesys.cache.FileStateCache.grantFileAccess(FileStateCache.java:680)
at org.alfresco.filesys.repo.LegacyFileStateDriver.createFile(LegacyFileStateDriver.java:107)
at org.alfresco.filesys.repo.BufferedContentDiskDriver.createFile(BufferedContentDiskDriver.java:468)
at org.alfresco.jlan.ftp.FTPSrvSession.procStoreFile(FTPSrvSession.java:2317)
at org.alfresco.jlan.ftp.FTPSrvSession.run(FTPSrvSession.java:5092)
at java.lang.Thread.run(Thread.java:745)
04:00:22,778 ERROR [org.alfresco.fileserver] [Sess_FTP74_206.208.106.20] Error from JLAN
java.lang.NullPointerException
at org.alfresco.repo.model.filefolder.ExtendedFileFolderServiceImpl.create(ExtendedFileFolderServiceImpl.java:36)
at sun.reflect.GeneratedMethodAccessor918.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.repo.model.ml.MLContentInterceptor.invoke(MLContentInterceptor.java:125)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.MLTranslationInterceptor.invoke(MLTranslationInterceptor.java:268)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.module.org_alfresco_module_rm.security.RMMethodSecurityInterceptor.invoke(RMMethodSecurityInterceptor.java:326)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:46)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceedWithAudit(AuditMethodInterceptor.java:248)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceed(AuditMethodInterceptor.java:208)
at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:163)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.FilenameFilteringInterceptor.invoke(FilenameFilteringInterceptor.java:254)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy73.create(Unknown Source)
at org.alfresco.filesys.repo.CifsHelper.createNode(CifsHelper.java:525)
at org.alfresco.filesys.repo.ContentDiskDriver2.createDirectory(ContentDiskDriver2.java:1043)
at sun.reflect.GeneratedMethodAccessor964.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice$1.execute(FilesystemTransactionAdvice.java:71)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:454)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:342)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice.invoke(FilesystemTransactionAdvice.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy291.createDirectory(Unknown Source)
at org.alfresco.filesys.repo.NonTransactionalRuleContentDiskDriver.createDirectory(NonTransactionalRuleContentDiskDriver.java:195)
at org.alfresco.filesys.repo.LegacyFileStateDriver.createDirectory(LegacyFileStateDriver.java:551)
at org.alfresco.filesys.repo.BufferedContentDiskDriver.createDirectory(BufferedContentDiskDriver.java:461)
at org.alfresco.jlan.ftp.FTPSrvSession.procCreateDirectory(FTPSrvSession.java:2920)
at org.alfresco.jlan.ftp.FTPSrvSession.run(FTPSrvSession.java:5156)
at java.lang.Thread.run(Thread.java:745)
04:00:22,778 ERROR [org.alfresco.fileserver] [Sess_FTP72_206.208.106.20] Error from JLAN
java.lang.NullPointerException
at org.alfresco.repo.model.filefolder.ExtendedFileFolderServiceImpl.create(ExtendedFileFolderServiceImpl.java:36)
at sun.reflect.GeneratedMethodAccessor918.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.repo.model.ml.MLContentInterceptor.invoke(MLContentInterceptor.java:125)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.MLTranslationInterceptor.invoke(MLTranslationInterceptor.java:268)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.module.org_alfresco_module_rm.security.RMMethodSecurityInterceptor.invoke(RMMethodSecurityInterceptor.java:326)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:46)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceedWithAudit(AuditMethodInterceptor.java:248)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceed(AuditMethodInterceptor.java:208)
at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:163)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.FilenameFilteringInterceptor.invoke(FilenameFilteringInterceptor.java:254)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy73.create(Unknown Source)
at org.alfresco.filesys.repo.CifsHelper.createNode(CifsHelper.java:525)
at org.alfresco.filesys.repo.ContentDiskDriver2.createDirectory(ContentDiskDriver2.java:1043)
at sun.reflect.GeneratedMethodAccessor964.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice$1.execute(FilesystemTransactionAdvice.java:71)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:454)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:342)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice.invoke(FilesystemTransactionAdvice.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy291.createDirectory(Unknown Source)
at org.alfresco.filesys.repo.NonTransactionalRuleContentDiskDriver.createDirectory(NonTransactionalRuleContentDiskDriver.java:195)
at org.alfresco.filesys.repo.LegacyFileStateDriver.createDirectory(LegacyFileStateDriver.java:551)
at org.alfresco.filesys.repo.BufferedContentDiskDriver.createDirectory(BufferedContentDiskDriver.java:461)
at org.alfresco.jlan.ftp.FTPSrvSession.procCreateDirectory(FTPSrvSession.java:2920)
at org.alfresco.jlan.ftp.FTPSrvSession.run(FTPSrvSession.java:5156)
at java.lang.Thread.run(Thread.java:745)
04:00:22,778 ERROR [org.alfresco.fileserver] [Sess_FTP73_206.208.106.20] Error from JLAN
java.lang.NullPointerException
at org.alfresco.repo.model.filefolder.ExtendedFileFolderServiceImpl.create(ExtendedFileFolderServiceImpl.java:36)
at sun.reflect.GeneratedMethodAccessor918.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.repo.model.ml.MLContentInterceptor.invoke(MLContentInterceptor.java:125)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.MLTranslationInterceptor.invoke(MLTranslationInterceptor.java:268)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.module.org_alfresco_module_rm.security.RMMethodSecurityInterceptor.invoke(RMMethodSecurityInterceptor.java:326)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:46)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceedWithAudit(AuditMethodInterceptor.java:248)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceed(AuditMethodInterceptor.java:208)
at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:163)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.FilenameFilteringInterceptor.invoke(FilenameFilteringInterceptor.java:254)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy73.create(Unknown Source)
at org.alfresco.filesys.repo.CifsHelper.createNode(CifsHelper.java:525)
at org.alfresco.filesys.repo.ContentDiskDriver2.createDirectory(ContentDiskDriver2.java:1043)
at sun.reflect.GeneratedMethodAccessor964.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice$1.execute(FilesystemTransactionAdvice.java:71)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:454)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:342)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice.invoke(FilesystemTransactionAdvice.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy291.createDirectory(Unknown Source)
at org.alfresco.filesys.repo.NonTransactionalRuleContentDiskDriver.createDirectory(NonTransactionalRuleContentDiskDriver.java:195)
at org.alfresco.filesys.repo.LegacyFileStateDriver.createDirectory(LegacyFileStateDriver.java:551)
at org.alfresco.filesys.repo.BufferedContentDiskDriver.createDirectory(BufferedContentDiskDriver.java:461)
at org.alfresco.jlan.ftp.FTPSrvSession.procCreateDirectory(FTPSrvSession.java:2920)
at org.alfresco.jlan.ftp.FTPSrvSession.run(FTPSrvSession.java:5156)
at java.lang.Thread.run(Thread.java:745)
04:00:22,779 ERROR [org.alfresco.fileserver] [Sess_FTP70_206.208.106.20] Error from JLAN
java.lang.NullPointerException
at org.alfresco.repo.model.filefolder.ExtendedFileFolderServiceImpl.create(ExtendedFileFolderServiceImpl.java:36)
at sun.reflect.GeneratedMethodAccessor918.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.repo.model.ml.MLContentInterceptor.invoke(MLContentInterceptor.java:125)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.MLTranslationInterceptor.invoke(MLTranslationInterceptor.java:268)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.module.org_alfresco_module_rm.security.RMMethodSecurityInterceptor.invoke(RMMethodSecurityInterceptor.java:326)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:46)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceedWithAudit(AuditMethodInterceptor.java:248)
at org.alfresco.repo.audit.AuditMethodInterceptor.proceed(AuditMethodInterceptor.java:208)
at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:163)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.alfresco.repo.model.filefolder.FilenameFilteringInterceptor.invoke(FilenameFilteringInterceptor.java:254)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy73.create(Unknown Source)
at org.alfresco.filesys.repo.CifsHelper.createNode(CifsHelper.java:525)
at org.alfresco.filesys.repo.ContentDiskDriver2.createDirectory(ContentDiskDriver2.java:1043)
at sun.reflect.GeneratedMethodAccessor964.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice$1.execute(FilesystemTransactionAdvice.java:71)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:454)
at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:342)
at org.alfresco.filesys.repo.FilesystemTransactionAdvice.invoke(FilesystemTransactionAdvice.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at com.sun.proxy.$Proxy291.createDirectory(Unknown Source)
at org.alfresco.filesys.repo.NonTransactionalRuleContentDiskDriver.createDirectory(NonTransactionalRuleContentDiskDriver.java:195)
at org.alfresco.filesys.repo.LegacyFileStateDriver.createDirectory(LegacyFileStateDriver.java:551)
at org.alfresco.filesys.repo.BufferedContentDiskDriver.createDirectory(BufferedContentDiskDriver.java:461)
at org.alfresco.jlan.ftp.FTPSrvSession.procCreateDirectory(FTPSrvSession.java:2920)
at org.alfresco.jlan.ftp.FTPSrvSession.run(FTPSrvSession.java:5156)
at java.lang.Thread.run(Thread.java:745)
04:09:27,847 ERROR [org.alfresco.fileserver] [Sess_FTP78_206.208.106.20] Error from JLAN
org.alfresco.jlan.server.filesys.FileExistsException
at org.alfresco.jlan.server.filesys.cache.FileStateCache.grantFileAccess(FileStateCache.java:680)
at org.alfresco.filesys.repo.LegacyFileStateDriver.createFile(LegacyFileStateDriver.java:107)
at org.alfresco.filesys.repo.BufferedContentDiskDriver.createFile(BufferedContentDiskDriver.java:468)
at org.alfresco.jlan.ftp.FTPSrvSession.procStoreFile(FTPSrvSession.java:2317)
at org.alfresco.jlan.ftp.FTPSrvSession.run(FTPSrvSession.java:5092)
at java.lang.Thread.run(Thread.java:745)

Log in JMeter:

java.net.ConnectException: Connection refused: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)
at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at org.apache.commons.net.ftp.FTPClient._openDataConnection_(FTPClient.java:894)
at org.apache.commons.net.ftp.FTPClient._storeFile(FTPClient.java:633)
at org.apache.commons.net.ftp.FTPClient.__storeFile(FTPClient.java:624)
at org.apache.commons.net.ftp.FTPClient.storeFile(FTPClient.java:1976)
at com.jmeter.alfresco.utils.FtpUtils.uploadFile(FtpUtils.java:205)
at com.jmeter.alfresco.utils.FtpUtils.uploadDirectory(FtpUtils.java:158)
at com.jmeter.alfresco.utils.FtpUtils.uploadDirectory(FtpUtils.java:181)
at com.jmeter.alfresco.utils.FtpUtils.uploadDirectoryOrFile(FtpUtils.java:92)
at com.jmeter.alfresco.ftp.upload.UploadDocumentTestFtp.runTest(UploadDocumentTestFtp.java:93)
at org.apache.jmeter.protocol.java.sampler.JavaSampler.sample(JavaSampler.java:191)
at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:429)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:257)
at java.lang.Thread.run(Unknown Source)

[mrogers]

There look to be several problems here that need to be identified.  Some of the errors are due to trying to create files and folders that already exist so it may be an error in the JMeter test.   Concurrent errors can be rather hard to tie down.    

If any issues can be narrowed down to bugs in the code then please raise them in JIRA.

[mrogers]

And you have some sort of Null Pointer exception from I think RM.   Looks like some initialization is not quite correct.