Re: Set hashtable size in ip_vs.h?

[Roberto Nibali <ratz@xxxxxx>]

Hello,

> I've installed RH 8.0, ipvs-1.0.7 and keepalived-1.0.0.
> I'm running LVS-DR with connection syncronisation enabled.
> Fail- over/back with active ftp and http sessions works without interruption 
> from the client point of view.
>
> Great software!! :)
Nice to hear.

> The LVS-nodes are DL360G2:s with 2GB of memory each.
>
> I'd like to set the hashtable size to 2^21 without recompiling the kernel.
This is not advisable, since it doesn't buy you anything except bigger holes in 
the buckets.
> Is it possible/wise/safe to specify it in ip_vs.h?

Possible: yes
Wise    : No :). Read it up on [1]
Safe    : It used to crash at a certain point in our long LVS history but it may
          also be fixed now.


> I've hardcoded it in ip_vs.h and it compiles.

:)

[1] http://www.linux-vs.org/Joseph.Mack/HOWTO/LVS-HOWTO.operation.html#id2882979

Cheers,
Roberto Nibali, ratz
--
echo '[q]sa[ln0=aln256%Pln256/snlbx]sb3135071790101768542287578439snlbxq' | dc