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ORA-12518: TNS:listener could not hand off client connection

user645399Jul 12 2010 — edited Jul 13 2010
Hi everyone!

I received the above stated error and the database is designed in such a way that it depends on another database which maintains a lot of details about the production database.

I checked the trace file and found this:
HS:  RPC error, SendGetProduct pid, NCR code 1003
HS:  Probable error (ORA-28546) in network administration
*** 2010-07-12 13:30:03.642
*** 2010-07-12 13:30:03.642
HS:  Error ORA-28544 or 28546, probable network admin error
HS:  Lost RPC connection to remote Agent...
HS:  ... Agent SID = (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=ipaddress)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=MainDB)(INSTANCE_NAME=maindb))), NCR status = 28546
The error pops up suddenly and sometimes leave undisturbed and sometimes I am required to restart it.
I restarted the production database and its working fine.

What causes it and how should I handle this problem? Please advice me.

I don't think so its running in shared server mode.

I checked this query and it returned:
select * from v$resource_limit
--1 processes 32 34 40 40 (within the limit)

select * from v$shared_server
-- returned null

select * from v$circuit
-- returned null

select * from v$dispatcher
--returned null

I noticed in other threads, we are adviced to perform the following steps which I didn't as I believe its for shared server:

DIRECT_HANDOFF_TTC_LISTENER=OFF -- what does this do?

Increase the value of large_pool_size. - This is applicable if Oracle runs on shared servers?

Please advice on how should I go about this?

The error appears on and off!

Expecting some guidance.

Thanks in advance.

Nith
This post has been answered by Chinar on Jul 12 2010
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Locked on Aug 10 2010
Added on Jul 12 2010
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