RE: wrong start_time and start_date in v$transaction
Date: Tue, 8 Sep 2020 15:09:25 +0000
Message-ID: <3169_1599577783_5F579EB7_3169_1535_1_3cb7b77d86a1481f8b03fed6e20b0257_at_vontobel.com>
Hi Mladen,
We have upgraded to Solaris 11.4 and relinked the Oracle homes couple of months ago.
As the system call nanosleep hangs, it should be an OS issue:
pstack 14583
14583: ora_vktm_DB
00007fff93c76eba nanosleep (7fffbfffc7d0, 7fffbfffc7e0)
00000000072f3e9a sltrusleep () + 6a
000000000758b994 kstmrmtickcntkeeper () + 5a4
000000000758b1f4 kstmmainvktm () + 194
00000000072f5869 ksbrdp () + 9a9 0000000006efc489 opirip () + 2b9 0000000006118950 opidrv () + 160
0000000006118767 sou2o () + 97
0000000006118534 opimai_real () + a4
000000000611808b ssthrdmain () + 26b
0000000006117df9 main () + a9
0000000007771e34 ???????? ()
truss -f -p 14583
14583: nanosleep(0x7FFFBFFFC7D0, 0x7FFFBFFFC7E0) (sleeping...)
In the meantime, we have a suspect: TimeKeeper. That’s a network time sync software installed by sysadmin to fulfill some legal requirements. We’re going to switch it off on the test server and observe.
Best regards,
Nenad
http://nenadnoveljic.com/blog/
From: Mladen Gogala <gogala.mladen_at_gmail.com> Sent: Dienstag, 8. September 2020 16:56 To: Noveljic Nenad <nenad.noveljic_at_vontobel.com>; Frank Gordon <frankagordon_at_gmail.com>; mvelikikh_at_gmail.com Cc: Jonathan Lewis <jlewisoracle_at_gmail.com>; Andy Sayer <andysayer_at_gmail.com>; xt.and.r_at_gmail.com; Clay Jackson (cjackson) <Clay.Jackson_at_quest.com>; ORACLE-L (oracle-l_at_freelists.org) <oracle-l_at_freelists.org> Subject: Re: wrong start_time and start_date in v$transaction
Nenad, this maybe silly: have you recently done a Solaris upgrade? For instance to 11.4? If that is the case you may need to relink your Oracle home. That might fix the problem. Regards
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