[jira] [Comment Edited] (VFS-835) Severe Performance Issue - FileObject.copyFrom()

["Mahesh (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/VFS-835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17709710#comment-17709710 ] 

Mahesh edited comment on VFS-835 at 4/7/23 4:17 PM:
----------------------------------------------------

Thank you Gary, we have started facing this issue after enabling encryption on the shared storage network, below is our code, do you have any insight how we can debug to identify where most of the time is being spent? Same document can be downloaded quickly by using native Linux features. 

 

FileObject localFile = manager.resolveFile(localFilePath);
System.out.println("Time Taken resolveLocalFile()- " + (System.currentTimeMillis() - tMilli1));
tMilli1 = System.currentTimeMillis();
FileObject remoteFile = null;
remoteFile = manager.resolveFile("sftp://" + userName + "@" + hostName + ":" + portno + "/" + remoteFilePath,createDefaultOptions(kkeypath, ppassphrase));
System.out.println("Time Taken resolveRemoteFile()- " + (System.currentTimeMillis() - tMilli1));
tMilli1 = System.currentTimeMillis();
*localFile.copyFrom(remoteFile, Selectors.SELECT_SELF);*
System.out.println("Time Taken Copy()- " + (System.currentTimeMillis() - tMilli1));
tMilli1 = System.currentTimeMillis();
System.out.println("File download success ");


was (Author: mahesh537):
Thank you Gary, we have started facing this issue after enabling encryption on the shared storage network, below is our code, do you have any insight how we can debug to identify where most of the time is being spent? Same document can be downloaded quickly by using native linux features. 

 

FileObject localFile = manager.resolveFile(localFilePath);
System.out.println("Time Taken resolveLocalFile()- " + (System.currentTimeMillis() - tMilli1));
tMilli1 = System.currentTimeMillis();
FileObject remoteFile = null;
remoteFile = manager.resolveFile(createConnectionString(hostName, portNo, userName, remoteFilePath), 
createDefaultOptions(kkeypath, ppassphrase));
System.out.println("Time Taken resolveRemoteFile()- " + (System.currentTimeMillis() - tMilli1));
tMilli1 = System.currentTimeMillis();
*localFile.copyFrom(remoteFile, Selectors.SELECT_SELF);*
System.out.println("Time Taken Copy()- " + (System.currentTimeMillis() - tMilli1));
tMilli1 = System.currentTimeMillis();
System.out.println("File download success ");

> Severe Performance Issue - FileObject.copyFrom()
> ------------------------------------------------
>
>                 Key: VFS-835
>                 URL: https://issues.apache.org/jira/browse/VFS-835
>             Project: Commons VFS
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Mahesh
>            Priority: Blocker
>             Fix For: 2.6.0
>
>
> We are facing severe performance with the FileObject.copyFrom() method, this method is taking 28 minutes for 20 MB file, its faster for un encrypted files (less than a minute), but with encryption on it is taking 28 minutes for 20 MB.  We don't have any way to trace further, can you help? 



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