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19991110: McIDAS XCD Broken Pipe

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  • Subject: 19991110: McIDAS XCD Broken Pipe
  • Date: Wed, 10 Nov 1999 13:05:33 -0700
>From: Michael Keables <address@hidden>
>Organization: University of Denver
>Keywords: 199911101751.KAA02013 LDM broken pipe

Michael-

Tom is out of town until next Thursday so I'll try to help you out.

>Been having increasing frequencies of data loss on cyclone due to a broken
>pipe in the XCD decoder:
>
>Nov 10 17:16:55 cyclone pqact[12767]: pbuf_flush (4) write: Broken pipe
>Nov 10 17:16:55 cyclone pqact[12767]: pipe_dbufput: xcd_runHRS write error
>Nov 10 17:16:55 cyclone pqact[12767]: pipe_prodput: trying again
>Nov 10 17:16:55 cyclone pqact[12767]: pbuf_flush (4) write: Broken pipe
>Nov 10 17:16:55 cyclone pqact[12767]: pipe_dbufput: xcd_runHRS write error
>Nov 10 17:16:55 cyclone pqact[12767]: child 21245 exited with status 127
>
>What does this mean, and how do I fix it?

There are several reasons you could get this error:

1) The user LDM cannot find the executables.
2) The user LDM does not have permission to write to the file.

Since things work some of the time (and assuming you haven't changed
anything), there is another time I've seen this problem.  I've seen
it occur when the ldmfail script runs and does not switch to a different
host very nicely.  Are you running the ldmfail script from cron?
If so, and if your connection to your upstream site is pretty reliable,
I'd suggest commenting out the crontab entry, stopping and restarting
your LDM.

If you aren't running ldmfail, then I'm puzzled.  Can you give us
a login as the user ldm so I can take a look?

Don Murray