Just installed a new pair of SPARC T4-4 (each w/2x CPUs, 128GB mem) with Solaris 11.1 sru 3.4.1 to run a Data Guard solution for 3x instances using 3x diff. Oracle 11R2 versions (22.214.171.124.2-4)
But all three instances on both pro & sec server randomly indicates Time Drift warnings in their alert logs and vktm traces, but both solaris boxes are running ntp sync fine.
Also various operations like instance startup/shutdown takes a long time, as well as a simple launch of sqlplus can take minutes. Also spawning a simple CLI like 'ps -ef' can sometimes take up to 20-30 sec. Neither swap nor cpu is loaded.
Could it be a known bug seen before or a faulty init ora parameter and/or combination?
Also posted this under Solaris 11 Forum:
simple processes are very slow at intervals
TIA for any hints!
snip of a VKTM trace:
Trace file /global/oraadmin/diag/rdbms/<redacted>/trace/<redacted>_vktm_27415.trc Oracle Database 11g Enterprise Edition Release 126.96.36.199.0 - 64bit Product ion ORACLE_HOME = /global/orabase/product/188.8.131.52.4/db_1 System name: SunOS Node name: <redacted> Release: 5.11 Version: 11.1 Machine: sun4v Instance name: <redacted> Redo thread mounted by this instance: 0 <none> Oracle process number: 3 Unix process pid: 27415, image: oracle@<redacted> (VKTM) *** 2013-06-03 12:51:02.036 *** SESSION ID:(1609.1) 2013-06-03 12:51:02.036 *** CLIENT ID:() 2013-06-03 12:51:02.036 *** SERVICE NAME:() 2013-06-03 12:51:02.036 *** MODULE NAME:() 2013-06-03 12:51:02.036 *** ACTION NAME:() 2013-06-03 12:51:02.036 kstmmainvktm: succeeded in setting elevated priority highres_enabled *** 2013-06-03 12:51:02.036 VKTM running at (1)millisec precision with DBRM quantum (100)ms [Start] HighResTick = 4585953873256 kstmrmtickcnt = 0 : ksudbrmseccnt = 1370256662 *** 2013-06-03 12:55:54.137 kstmchkdrift (kstmhighrestimecntkeeper:highres): Time jumped forward by (2984405)usec at (4586245994477) whereas (1000000) is allowed *** 2013-06-03 12:56:13.269 kstmchkdrift (kstmhighrestimecntkeeper:highres): Time jumped forward by (19133925)usec at (4586265128403) whereas (1000000) is allowed kstmchkdrift (kstmhighrestimecntkeeper:lowres): Time stalled at 1370256973 kstmchkdrift (kstmhighrestimecntkeeper:lowres): Stall, backward drift ended at 1370256974 drift: 1 kstmchkdrift (kstmhighrestimecntkeeper:highres): Time jumped forward by (7023737)usec at (4586963505968) whereas (1000000) is allowed
Mod. action: please, to keep tab formatting on forum side, use the tag
before and after your code output, thanks. lease, Edited by: N Gasparotto on Jun 3, 2013 4:16 PM