Re: 10g RAC and db_multi_block_read_count

From: Greg Rahn <>
Date: Thu, 6 Aug 2009 08:32:37 -0700
Message-ID: <>

On Thu, Aug 6, 2009 at 7:28 AM, Yong Huang<> wrote:
> This question was recently raised in another forum. The poster
> had 9208 RAC FOR AIX and dfmbrc was 16, set by itself, and had
> lots of 'global cache cr request' waits (and UDP "socket buffer
> overflows" in `netstat -s'). He changed the parameter to 4 and
> solved the problem. He finally posted this reference:
> and quoted Note:228647.1. I couldn't read the Metalink note, but
> after lots of reading pretty much concluded it's a port-specific
> bug although I can't point out the exact bug number (most are
> marked duplicate or incomplete).

That ML notes points to bug 2475236 in on AIX & Linux. Fixed with a 1 off as well as

Greg Rahn
Received on Thu Aug 06 2009 - 10:32:37 CDT

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