Re: MCH0601 in SendDoc at 4523 (v1.24)

[Thomas Raddatz <thomas.raddatz@xxxxxxxxxxx>]

Hi Scott,

What do you think about this issue? Any comments?

The problem only happens, when we send about 5000 requests in about 90 
minutes to a Terracotta cache server. It does not occur on other request to 
e.g. web services. But take that just as a side note.

Anyway, the problem went away after I changed HTTPAPIR4 as described in my 
initial posting.

I am just curious whether or not you agree to my fix and if you want to 
adopt it to your code base.

Regards,

Thomas.

Am 28.08.2013 09:27, schrieb thomas.raddatz@xxxxxxxxxxx:
>     Hi Scott,
>
>
>
>     Today I got a MCH0601 error in procedure SendDoc() at statement 4523. I
>     debugged the problem and I found out that SendDoc() does not check the
>     return value of comm_BlockWrite().
>
>
>
>     In order to reproduce the error you may:
>
>
>
>     a) Add a breakpoint to the first line of SendDoc().
>
>
>
>     b) Call your test program.
>
>
>
>     c) Shutdown your (test) web server or wait for a timeout (broken pipe).
>
>
>
>     d) Let the program continue.
>
>
>
>     Now wwLeft is incremented whereas wwPos is decremented and it is just a
>     question of time until MCH0601 is sent. For now I fixed the problem
>     like this:
>
>
>
>          c                   eval      wwSent = comm_BlockWrite( peComm
>          c                                                     : wwPos
>          c                                                     : wwChunk
>          c                                                     : peTimeout
>     )
>           *  Monitor return code of comm_BlockWrite()
>          c                   if        wwSent < 0
>          c                   return    -1
>          c                   endif
>          c                   eval      wwLeft = wwLeft - wwSent
>
>     Do you agree with me?
>
>
>
>     Regards,
>
>
>
>     Thomas.
>
>
>
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