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IV01331: PARALLEL FTP MGET MAY CAUSE UNEXPECTED FILE DOWNLOAD APPLIES TO AIX 6100-05

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APAR status

  • Closed as program error.

Error description

  • When multiple ftp clients use mget command in parallel,
unexpected file
may be downloaded by rare timing window.

For example, one ftp client sends "mget fileA*" request
and another one
sends "mget fileB*", former client may download latter
"fileB*".

This problem also happens on mdelete and proxy mode mput.

Local fix

  • 1. Don't use mget command in parallel
2. Use "ls" and "get" independently instead of using mget

Problem summary

  • When multiple ftp clients use mget command in parallel,
unexpected file may be downloaded by rare timing window.

For example, one ftp client sends "mget fileA*" request and
another one sends "mget fileB*", former client may download
latter "fileB*".

This problem also happens on mdelete and proxy mode mput.

Problem conclusion

  • Modified ftp code to store the list of the files to download
with unique name in the temporary directory, so that this
problem doesn't happen.

Temporary fix

  • 



Comments


    

  • 6100-05 - use AIX APAR IV01331

    



APAR Information




    

  • APAR number
    IV01331
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2011-06-02
    • 

  • Closed date
    2011-06-24
    • 

  • Last modified date
    2013-04-16
    • 






Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U843235
       UP11/10/11  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            16 April 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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