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R3load socket compression

Does migmon socket option use any compression?

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  • Posted on Oct 08, 2010 at 04:03 PM

    >

    > Does migmon socket option use any compression?

    Not sure what you mean.

    The R3load data itself is compressed (it's about 1/10 of the original size). There's no other compression used.

    Markus

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  • author's profile photo Former Member
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    Posted on Oct 08, 2010 at 04:29 PM

    Yes, if option "net" is used (dump files are written to disk) - then export is compressed 1/10.

    If I use option "socket" - there are no dump files.

    Parallel export/import of 1 TB database take ~5 hours.

    Bandwidth usage monitor shows load 580 Mb/s from 1Gb/s. It is ~250GB/hour.

    It seems that R3load process with "-socket" option doesn't compress data.

    Now I'm going to use parallel export/import with "net" option instead.

    Simple source DB export takes just 1 hour, that is export speed is 1TB/hour.

    It will create dumps with speed 100GB/hour.

    Transferring 100GB over 1Gb/s channel will take less than an hour.

    But may be there is a option, that can force R3load to use compression with "socket" option?

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