after rebooting our SAP system together with the Oracle 126.96.36.199 database and the oracle listener (on a Linux SuSe SLES 10 Enterprise Server), the oracle listner hangs during startup.
The output after lsnrctl start is only:
LSNRCTL for Linux: Version 188.8.131.52.0 - Production on 18-OCT-2012 10:43:21
Copyright (c) 1991, 2010, Oracle. All rights reserved.
Starting /oracle/J01/112_64/bin/tnslsnr: please wait...
..and then the listener hangs 'forever'...
We don´t change anything during the reboot in the area of the listener config files.
In the listener trace file we could find a line like this:
2012-10-17 18:43:07.308452 : snlinGetAddrInfo:getaddrinfo() failed with error -2"
in the log.xml file only these line are visible:
<msg time='2012-10-18T11:05:31.009+02:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='bwportal'
<txt>Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=bwportal)(PORT=1527)))
After implementing the latest linux kernel the problem was solved (?!), everythink works fine (listener, database, and sap instance) but after some hours -and a new test reboot of the SAP-Instance with database and listener- the problem occurs again.
We don´t find any problems in the network area of the server. No firewall is active.
-> If anybody has an idea, what we have to do or which area or log we have to check, please inform us.