• Leigh B. Stoller's avatar
    Add "distributed" calculation of the hosts file. If a topomap file is · 8fd5c467
    Leigh B. Stoller authored
    present (gettopmap() returns valid) turn the topomap into input to feed
    into the genhostsfile program (see initial revision for os/genhostsfile),
    Take the output and feed that into the parsing code.
    
    NB: If we change the output of tmcd hostnames call, we have to change the
    output of this program too. This will likely become a problem at some
    point, although the format of the hostnames command has not changed for
    about 2 years now.
    
    The point of doing this is to remove the bottleneck of computing hostsfiles
    from tmcd, which centrally computes them for every node, and in a big topo
    (100s of nodes) that takes a lot of time and bw.
    8fd5c467
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