Re: Odd Data Transfer Issue

[Charles Wilt <charles.wilt@xxxxxxxxx>]

   My first thought...given the error and the "not getting error on the
   same file each time and not every time we connect"
   Is that the remote system doesn't have a�QTFTPxxxx job available to
   service the request...
   There's a "initial number of servers to start" property in iNav for the
   FTP server. �But from what I can see the QTFTP jobs aren't actual
   pre-start jobs. �Instead, if this number is say 10 and you have 5
   clients connect then you'll have 15 jobs running. �So for every
   client, a new job is started if the # of available jobs is less than
   the "initial number".
   I'd suggest some tracing on the remote system. �Either a comm trace or
   the TRCTCPAPP command.
   HTH,
   Charles

   On Thu, Jun 5, 2014 at 2:54 PM, Mike Krebs
   <[1]mkrebs@xxxxxxxxxxxxxxxxxx> wrote:

     I don't use FTPAPI regularly but have tested it. IIRC, my test
     connections were blocked and I got a message similar to that because
     our network had some ports blocked. Is a firewall involved in your
     setup? A new "managed" switch/router/gateway? Network peeps locking
     things down?
     The not every time thing is strange. You might have to trace
     communications to see if there are packets being exchanged or if it
     comes down to some kind of timeout.
     Ah, just thought of something else. At our place, we put a endtcpsvr
     *ftp command on the job scheduler to prevent its use during certain
     time periods. Maybe someone has implemented something similar at
     yours?

   -----Original Message-----
   From: [2]ftpapi-bounces@xxxxxxxxxxxxxxxxxxxxxx
   [mailto:[3]ftpapi-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Brian
   Sent: Thursday, June 05, 2014 12:57 PM
   To: HTTPAPI and FTPAPI Projects
   Subject: Odd Data Transfer Issue
   Hello List,
   We've suddenly begun to experience an issue moving files between our
   iSeries and another one. �I do not believe this is an FTPAPI issue at
   all because we are using it to move files to and from our machine and
   other iSeries without issue. �I am just hoping someone may have ideas
   on how to locate the root cause of this or get more info from FTPAPI.
   We are using put/get/append at different times to move iSeries database
   files around between our iSeries and another. �We are using binary
   mode *ON and trim mode *OFF. �This had been working just fine a week
   ago and suddenly this week we are getting the error message in FTPAPI
   of "Not able to open data connection.". We are not getting error on the
   same file each time and not every time we connect and move files
   around.
   I know this is pretty vague but I am hoping someone may have some
   insight or thoughts on this.
   Thanks much in advance.

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References

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   2. mailto:ftpapi-bounces@xxxxxxxxxxxxxxxxxxxxxx
   3. mailto:ftpapi-bounces@xxxxxxxxxxxxxxxxxxxxxx
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