DO NOT REPLY [Bug 37897] New: - ftp task very slow when depends=yes

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http://issues.apache.org/bugzilla/show_bug.cgi?id=37897

           Summary: ftp task very slow when depends=yes
           Product: Ant
           Version: 1.6.5
          Platform: All
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Optional Tasks
        AssignedTo: dev@ant.apache.org
        ReportedBy: e17x-o9j5@spamex.com


I am using <ftp> with depends=yes to transfer only changed files from my
development machine to my server.  Both machines are on a local 100MB network.
Both machines are pretty fast. One is a windows XP P4 3.0 Ghz 2GB mem and
the other is a Solaris 9 2 cpu 4GB mem machine.

In the example below, I have 225 files in web/html/jsp.
If I modify a single file, and then run this ant task, it takes
52 seconds to complete the operation.  The file transfer of that
one file takes less than 1 second if I do it manually using ftp
command in the command shell. So, I assume the rest of the time
is spent checking the timestamps of the files on the server side.


I am guessing tha the <ftp> is making individual requests for each
file to check it's timestamp on the server side?  
Is there anyway this could be condensed into a single call?
If I run ftp manually in the command shell, If I do "dir" it will
print out all the files with their timestamps. 
Why can't <ftp> do something similar?

I was expecting this operation to take about 2 seconds instead of
the 52 seconds it is currently taking.


<ftp server="${SERVER_NAME}"
     userid="${SERVER_USER}" password="${SERVER_PASSWORD}"
     remotedir="/usr/pronto/web/html/jsp"
     depends="yes"
     verbose="yes">
     <fileset dir="${TOP}/web/html/jsp">
        <include name="*.jsp"/>
        <include name="*.jspf"/>
     </fileset>
</ftp>

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