TNS-12531 listener trouble on Windows 2003

From: HansP <Hans-Peter.Sloot_at_atosorigin.com>
Date: Thu, 6 Jan 2011 09:57:42 -0800 (PST)
Message-ID: <ac591824-1d0f-4795-9e76-b8da6b455a28_at_g25g2000yqn.googlegroups.com>

This is happening at a 2 node windows 2003 rac with 96G ram (free ram about 70G)
Release of grid infrastructure is 11.2
Database 10.2.0.5.

When too many users connect (little fewer than 150) all listeners report then 12531 error and become unresponsive afterwards

Thu Jan 06 13:32:43 2011
No longer listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)
(HOST=x.x.x.x)(PORT=1521)))

06-JAN-2011 13:32:43 * service_died * LsnrAgt * 12537
06-JAN-2011 13:32:43 * 12531
TNS-12531: TNS:cannot allocate memory

lsnrctl status gives protocol adapter error Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)
(KEY=LISTENER_SCAN2)))

TNS-12560: TNS:protocol adapter error

We have increased the desktop heap size to 1M.

Any clues or directions?

regards HansP Received on Thu Jan 06 2011 - 11:57:42 CST