[HTCondor-users] condor_history with named pipes w/o seek?

[Thomas Hartmann <thomas.hartmann@xxxxxxx>]

Hi all,

maybe a niche question, but is there a way to read with condor_history 
from named pipes sequentially?

Background is, that we have a number of gzip compressed history files, 
that I would like to read on the fly without decompressing before - just 
to extract a few stats.
I tried to decompress it to a named pipe and read from it with something 
like [1] - however, condor_history quit immediately (with 0).
Probably condor_history is doing a seek - which probably does not really 
harmonize with the pipe's stream, or?

Cheers,
  Thomas



[1]
mkfifo /tmp/pipe.condor/condorhistcat
zcat -d --stdout /path/to/history*.gz > /tmp/pipe.condor/condorhistcat

condor_history -file /tmp/pipe.condor/condorhistcat -af clusterid owner

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