HI ALL,
We have to load almost 3 millions records of average row size of 150 bytes.
We are importing data using sqloader with ROWS=4000 and bindsize=8450000 .
We have adjusted the rollback segment to almost 10 m with 8 extents enough
for single transaction size and considering 30% rollback overhead. We
adjusted the OPTIMAL TO 10 M to have avoid rollback extension
Rollback segment, databuffer cache have hit ratio of 100%.
The loading was fast only for first 10 commits but then it slowed like
snail. LOADING TOOK 22 hours in the first run on ORACLE8i NT4 128 megs RAM
.
SGA figures in M :
NAME VALUE
-------------------- ---------
Fixed Size .0676384
Variable Size 239.02734
Database Buffers 39.0625
Redo Buffers 7.8203125
---------
sum 285.97779
( we can't use direct path due to functions in sqlldr controlfile). .
Couldn't figure out the bottleneck yet.
Any ideas.
TIA
Azhar Siddiq,
DBA
LMK Resources
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