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Re: Error I'm getting: ORA-01599, trying to put many rollback segments online

From: Thomas Kyte <tkyte_at_us.oracle.com>
Date: Thu, 22 Oct 1998 19:14:08 GMT
Message-ID: <363883b1.25885241@192.86.155.100>


A copy of this was sent to "Brendan Newman" <brnewma_at_ibm.net> (if that email address didn't require changing) On Thu, 22 Oct 1998 14:19:00 -0400, you wrote:

>Hi there,
>
> I'm trying to put about 400 rollback segments online (50K each). I
>currently allocated 1 Gig to my rollback space. Each time I run a script
>that goes sequentially through the offline segments, it crashes in the
>middle with an oracle error:
>
>ORA-01599 failed to acquire rollback segment "name", cache space is full
>(currently has 29 entries)
>
> Oracle on-line documentation says "the amount of allocated space is not
>enough". How do I increase "allocated" space? Is there a variable in the
>InitSID.ORA file that I need to set?
>
>Any help would be much appreciated.
>
>Thanks,
>
>Brendan
>
>

Well, in answer to your question:

$ oerr ora 1599
01599, 00000, "failed to acquire rollback segment (%s), cache space is full (currently has (%s) entries)"

// *Cause:  the amount statically allocated is not enough based on
//          max_rollback_segments parameter.
// *Action: For now take another rollback segment offline or increase the 
//          parameter max_rollback_segments

But now a question for you -- 400 rollback segments of 50k each? Why? It'll take us longer to find a rollback segment for you with that many small ones. Why not fewer rbs's with more space (and more extents in each one)....  

Thomas Kyte
tkyte_at_us.oracle.com
Oracle Government
Herndon VA

--
http://govt.us.oracle.com/ -- downloadable utilities  



Opinions are mine and do not necessarily reflect those of Oracle Corporation  

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