OS spawns multiple PIDs for one listener process

  • From: "jayaraj rengarajan" <jayaraj.rengarajan@xxxxxxxxx>
  • To: oracle-l <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 27 Oct 2006 16:16:40 -0400

Folks:

I am seeing an unusal pattern with listener process. When starting this
process, OS spawn four PIDs.
The listener.ora file is similar to what we have in other servers.

OS : Linux RHEL 4.0
DB: 10.2.0.2

Anyone experienced this/ideas?

eg:
$  ps -ef|grep tns
oracle   23119     1  0 15:37 ?        00:00:00
/ispiris-dev/orasrc/product/db/10.2.0.2/bin/tnslsnr LISTENER -inherit
oracle   23120 23119  0 15:37 ?        00:00:00
/ispiris-dev/orasrc/product/db/10.2.0.2/bin/tnslsnr LISTENER -inherit
oracle   23121 23120  0 15:37 ?        00:00:00
/ispiris-dev/orasrc/product/db/10.2.0.2/bin/tnslsnr LISTENER -inherit
oracle   23122 23120  0 15:37 ?        00:00:00
/ispiris-dev/orasrc/product/db/10.2.0.2/bin/tnslsnr LISTENER -inherit
oracle   23431 21384  0 16:10 pts/0    00:00:00 grep tns
$

Thanks
Jay

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