URGENT - Can you coalesce a RBS tablespace? 2005-09-07 - By Niall Litchfield
On 9/6/05, Henslee, Jeff <jhenslee@(protected)> wrote: > > Apologies - Here's are the error messages I was receiving - > > ORA-01562 (See ORA-01562.ora-code.com) Failed to extend rollback segment number 11 > ORA-01650 (See ORA-01650.ora-code.com) unable to extend rollback segment RBS10 by 128 in tablespace > RBS. > > It started with one user at first and then started to spread to a number > of users on the same instance. > > The weird thing about it was the initial extent of segment 10 was 128. The > next size was 1M with the optimal size being 5M.
I think its already been suggested that you keep initial=next for rollback segments. This is good advice, especially for RBS - though actually for other segment types as well.
It appeared that it was even having troubles with the initial extent. I > guess that is why I labeled it 'urgent'. I wasn't sure why it couldn't even > create the initial extent. The free space still does not appear to be giving > itself back to the instance....
the 128 in the 1650 error text is blocks not bytes. Most likely you have an 8k block size and its a 1m extent that can't be created.
-- Niall Litchfield Oracle DBA http://www.niall.litchfield.dial.pipex.com
On 9/6/05, <b class="gmail_sendername">Henslee, Jeff</b> <<a href="mailto :jhenslee@(protected)">jhenslee@(protected)</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Apologies - Here's are the error messages I was receiving -<br><br>ORA-01562 (See ORA-01562.ora-code.com) Failed to extend rollback segment number 11<br>ORA-01650 (See ORA-01650.ora-code.com) unable to extend rollback segment RBS10 by 128 in tablespace RBS.<br><br>It started with one user at first and then started to spread to a number of users on the same instance. <br><br>The weird thing about it was the initial extent of segment 10 was 128. The next size was 1M with the optimal size being 5M.< /blockquote><div><br> I think its already been suggested that you keep initial=next for rollback segments. This is good advice, especially for RBS - though actually for other segment types as well. <br> </div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">It appeared that it was even having troubles with the initial extent. I guess that is why I labeled it 'urgent'. I wasn't sure why it couldn't even create the initial extent. The free space still does not appear to be giving itself back to the instance....</blockquote><div><br> </div></div>the 128 in the 1650 error text is blocks not bytes. Most likely you have an 8k block size and its a 1m extent that can't be created. <br><br clear="all"><br>-- <br>Niall Litchfield<br>Oracle DBA<br><a href="http://www.niall.litchfield.dial.pipex.com">http://www.niall.litchfield .dial.pipex.com</a>
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