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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Which RBS have active transactions?
Thanks, I was able to write a script that gets me most of what I want:
select a.segment_name, b.start_uext "ACTIVE EXENT NUMBER", b.used_ublk "USED RBS BLOCKS" from dba_rollback_segs a, v$transaction b where a.segment_id = b.xidusn order by a.segment_name, b.start_uext; SEGMENT_NAME ACTIVE EXENT NUMBER USED RBS BLOCKS ------------------------------ ------------------- --------------- RB01 74 1 RB01 82 1 RB02 29 1 RB02 37 1 RB03 5 1 RB03 21 1
Thanks,
Tom Terrian
Oracle DBA
WPAFB - DAASC
tterrian_at_daas.dla.mil
937-656-3844
-----Original Message-----
Sent: Thursday, July 05, 2001 11:26 AM
To: Multiple recipients of list ORACLE-L
Terrian, Tom wrote:
>
> Does anyone know of a way to determine which RBS extents have active
> transactions?
>
> Specifically:
> select a.segment_name, a.bytes, a.extents, c.xacts
> from dba_segments a, dba_rollback_segs b, v$rollstat c
> where a.segment_type = 'ROLLBACK'
> and a.segment_name = b.segment_name
> and b.segment_id = c.usn;
>
> SEGMENT_NAME BYTES EXTENTS XACTS
> -------------------- ---------- ----------
> ----------
> RB01 14745600 90 2
> RB02 7364608 45
> 2
> RB03 3276800 20
> 2
> SYSTEM 5079040 62 0
>
> RB01 has 2 active transactions and 90 exents. Can I tell which of the exents
> have the active transactions?
>
> Tom Terrian
> Oracle DBA
> WPAFB - DAASC
> tterrian_at_daas.dla.mil
> 937-656-3844
>
I do not think so. V$TRANSACTION will give you information about the extent where it all started and how much rollback has been used (I think - out of memory), but you will not be able to tell exactly which extents (but the first one) are involved. I think that the detail is hard-coded somewhere in the RBS header ('slot'), I don't think that it's accessible even in some obscure X$.
-- Regards, Stephane Faroult Oriole Corporation ------------------------------------------------------------------ http://www.oriolecorp.com, designed by Oracle DBAs for Oracle DBAs ------------------------------------------------------------------ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stephane Faroult INET: sfaroult_at_oriolecorp.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Terrian, Tom INET: tterrian_at_daas.dla.mil Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Thu Jul 05 2001 - 09:42:33 CDT
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