RE: dbms_job question ??

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Sounds like your online logs are too small. I'll bet you're not only suffering from db hang-ups during hot backups, but you're probably not competing one checkpoint before the next begins. Run the following query and see if that's happening. If so, you need to increase the redo log size. If the result is > 1, you do. BTW how big are they. From what you describe they should be at least 400m each.

select started.value - completed.value incomplete_checkpoints from v$sysstat started, v$sysstat completed where started.name = 'background checkpoints started' and completed.name = 'background checkpoints completed';

-----Original Message-----
Sent: Wednesday, April 26, 2000 9:55 AM
To: Multiple recipients of list ORACLE-L

We are running Oracle 7.3.2.3 OPS on AIX 4.2.1

Our database is 600G and extremely insert-intensive (330M per 15 minutes).

During hot backup (which takes 10 hours) all 23 on-line redo logs usually fill and the database stops
because they are filling faster than the archive process can copy them to the archive filesystem.

Can anyone suggest any Oracle tuning that may help? I cant think of anything. Is there a way (in Unix) to give the archiver an exclusive lock on the archive filesystem during a redo log write?

...tom

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<P>Sounds like your online logs are too small. I'll bet you're not only suffering from db hang-ups during hot backups, but you're probably not competing one checkpoint before the next begins. Run the following query and see if that's happening. If so, you need to increase the redo log size. If the&nbsp;result is &gt; 1, you do. BTW how big are they. From what you describe they should be at least 400m each.</P><FONT size=2><FONT face="Courier New"><FONT color=#0000f0><FONT color=#0000f0 size=2>

<P>select</FONT><FONT color=#000000 size=2> started</FONT><FONT color=#0000f0 size=2>.</FONT><FONT color=#000000 size=2>value </FONT><FONT color=#0000f0 size=2>-</FONT><FONT color=#000000 size=2> completed</FONT><FONT color=#0000f0 size=2>.</FONT><FONT color=#000000 size=2>value incomplete_checkpoints<BR></FONT><FONT color=#0000f0 size=2>from</FONT><FONT color=#000000 size=2> v$sysstat started</FONT><FONT color=#0000f0 size=2>,</FONT><FONT color=#000000 size=2> v$sysstat completed</FONT><FONT color=#0000f0 size=2><BR>where</FONT><FONT color=#000000 size=2> started</FONT><FONT color=#0000f0 size=2>.</FONT><FONT color=#000000 size=2>name </FONT><FONT color=#0000f0 size=2>=</FONT><FONT color=#000000 size=2> </FONT><FONT color=#ff0000 size=2>'background checkpoints started'<BR></FONT><FONT color=#0000f0 size=2>and</FONT><FONT color=#000000 size=2> completed</FONT><FONT color=#0000f0 size=2>.</FONT><FONT color=#000000 size=2>name </FONT><FONT color=#0000f0 size=2>=</FONT><FONT colo!

r=#000000 size=2> </FONT><FONT color=#ff0000 size=2>'background checkpoints completed';</FONT></FONT></FONT></FONT><FONT face="Courier New"><FONT color=#000000 size=2></P></FONT></FONT><FONT color=#0000f0 size=2></FONT>


<P><FONT color=#000000 size=2></P></FONT>

<P>-----Original Message-----<BR>Sent: Wednesday, April 26, 2000 9:55 AM<BR>To: Multiple recipients of list ORACLE-L<BR><BR><BR>We are running Oracle 7.3.2.3 OPS on AIX 4.2.1 <BR><BR>Our database is 600G and extremely insert-intensive (330M per 15 minutes).<BR><BR>During hot backup (which takes 10 hours) all 23 on-line redo logs usually fill<BR>and the database stops<BR>because they are filling faster than the archive process can copy them to the<BR>archive filesystem.<BR><BR>Can anyone suggest any Oracle tuning that may help? I cant think of anything.<BR>Is there a way (in Unix) to give the archiver an exclusive lock on the archive<BR>filesystem during a redo log write?<BR><BR>...tom <BR>-- <BR>Author: <BR>INET: blair_at_pjm.com<BR><BR>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051<BR>San Diego, California -- Public Internet access / Mailing Lists<BR>--------------------------------------------------------------------<BR>To REMOVE yourself from this mailing list!

, send an E-Mail message<BR>to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in<BR>the message BODY, include a line containing: UNSUB ORACLE-L<BR>(or the name of mailing list you want to be removed from). You may<BR>also send the HELP command for other information (like subscribing).<BR>-- <BR>Author: Michael Boligan<BR>INET: mboligan_at_healthvision.com<BR><BR>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051<BR>San Diego, California -- Public Internet access / Mailing Lists<BR>--------------------------------------------------------------------<BR>To REMOVE yourself from this mailing list, send an E-Mail message<BR>to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in<BR>the message BODY, include a line containing: UNSUB ORACLE-L<BR>(or the name of mailing list you want to be removed from). You may<BR>also send the HELP command for other information (like subscribing).</P><p><br><hr size=1><b>Do You Yahoo!?</b><br>
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