Not a windows guy at all, but have you tried tracing it?
https://stackoverflow.com/questions/3847745/systrace-for-windows
Might show you the syscall it's hanging on which would confirm if it's
indeed some sort of lookup that hangs.
Stefan
On Tue, May 29, 2018 at 9:11 PM, Niall Litchfield <
niall.litchfield@xxxxxxxxx> wrote:
Hi
Has anybody else observed initial connectivity with the 12.2
windows client to be significantly slower than in 12.1 (or 11.2). My setup
has ldap and TNS_ADMIN involved.
12.1
ORACLE_HOME: C:\APP\ORACLE\INSTANTCLIENT_12_1
TNS_ADMIN: C:\APP\TNS
12.2
ORACLE_HOME: C:\APP\ORACLE\INSTANTCLIENT_12_2
TNS_ADMIN: C:\APP\TNS
Extract from an admin level sqlnet trace in 12.1
(12180) [29-MAY-2018 14:53:56:171] nnflgetnlpactx: NLPA context
successfuly initialized
(12180) [29-MAY-2018 14:53:56:172] nnflgetnlpactx: exit
(12180) [29-MAY-2018 14:53:56:517] nnfloidinfocache: entry
(12180) [29-MAY-2018 14:53:56:517] nnfloidinfocache: Info: Inserted value
DIRECTORY_SERVER_TYPE=OID at index 0 into NLPA_CACHE
and from 12.2
(9712) [29-MAY-2018 14:47:01:777] nnflgetnlpactx: NLPA context successfuly
initialized
(9712) [29-MAY-2018 14:47:01:777] nnflgetnlpactx: exit
(9712) [29-MAY-2018 14:47:38:195] nnfloidinfocache: entry
(9712) [29-MAY-2018 14:47:38:195] nnfloidinfocache: Info: Inserted value
DIRECTORY_SERVER_TYPE=OID at index 0 into NLPA_CACHE
Note the extra 30 secs between exit from the nnflgetnlpactx function and
entry to the OID related function nnfloidinfocache
I have a ticket with Oracle Support but wondered if anyone else has seen
this.
--
Niall Litchfield
Oracle DBA
http://www.orawin.info
