Archives of the TeradataForum
Message Posted: Thu, 19 Aug 2004 @ 19:25:52 GMT
| Subj: | | Re: Cancel a RollBack in V2R.05.00.03.02 |
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| From: | | Dieter Noeth |
Anomy Anom wrote:
| | I got a problem with a rollback that has been running for several days in a large table. | |
| | I don't know the reason of this problem since the original transaction took 1 day and then we aborted it and TD started to
rollback. | |
You shouldn't do that ;-))
| | According to the rules a rollback usually runs about 1 1/2 to 2 times longer than the original transaction. | |
In worst case much longer than that...
If it was an Insert or Delete and you know the original row count you can submit a count(*) using an access lock to find out how many rows
still have to be processed.
If it was an Update with delete/merge steps (check explain) this may also work.
| | As i mentioned in the subject we are running on V2R.05.00.03.02. | |
| | I was thinking if maybe we need a patch or a tuning. | |
In V2R5.1 there's a "Cancel Rollback" command, before that only the Global Support Center can do that, but be aware: the table will be in an
inconsistent state...
Dieter
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