Lucas,

I think the overhead of putting it on to a different node will not
show any performance gain. This includes the network traffic to your
MySQL server rather then using a socket on the localhost.

If you are trying to improve performance, have you tried using
multiple cores with RBH? Some tuning that Thomas showed are here:
http://sourceforge.net/apps/trac/robinhood/wiki/TunePipeline

You can also optimize MySQL with mysqltunner.pl

>       Node1: robinhood --scan --once -f myconf -L stdout -F /A/B
>       Node1: robinhood --scan --once -f myconf -L stdout -F /A/C
>       Node1: robinhood --scan --once -f myconf -L stdout -F /A/D

If you just want to scan parts of your filesystem, have a unique
myconf file that includes an Ignore block

FS_Scan {
    # FS Specific
    Ignore
    {
        not tree == "/A/B"
    }
}

Do this for each of your folders on your filesystem.


Does that help?
-Adam

--
Adam Brenner
Computer Science, Undergraduate Student
Donald Bren School of Information and Computer Sciences

Research Computing Support
Office of Information Technology
http://www.oit.uci.edu/rcs/

University of California, Irvine
www.ics.uci.edu/~aebrenne/
[email protected]


On Mon, Jan 13, 2014 at 11:09 PM, Lucas <[email protected]> wrote:
> Hello,
>        I have a thought in my mind that running robinhood in multiple nodes
> to scan the file system. first step is to split the file system into many
> sub-filesystem(I have find a way to implement it ), then run robinhood in
> many other nodes and update the ENTRIES table of MySQL database.
>        I tested the -F parameter, here we surpose the structure of the
> database is:
>        /A
>        |-- B
>        |-- C
>        |-- D
>       And there are three nodes using robinhood to scan the the file system:
>       Node1: robinhood --scan --once -f myconf -L stdout -F /A/B
>       Node1: robinhood --scan --once -f myconf -L stdout -F /A/C
>       Node1: robinhood --scan --once -f myconf -L stdout -F /A/D
> Apparently it is not works, but what if modified the source codes of
> list_mgr and only update the ENTRIES table ?
> Is that a good idea?
>
> Best regards,
> Lucas
>
>
>
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