Re: 10g RAC and db_multi_block_read_count
- From: Greg Rahn <greg@xxxxxxxxxxxxxxxxxx>
- To: Yong Huang <yong321@xxxxxxxxx>
- Date: Thu, 6 Aug 2009 08:32:37 -0700
On Thu, Aug 6, 2009 at 7:28 AM, Yong Huang<yong321@xxxxxxxxx> 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:
> http://www-900.ibm.com/cn/support/viewdoc/detail?DocId=2411083L10001
> 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 9.2.0.2 on AIX & Linux. Fixed
with a 1 off as well as 9.2.0.3.
--
Regards,
Greg Rahn
http://structureddata.org
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