Large SOE builds... things to watch for
25/03/10 10:57 Filed in: Swingbench
A couple of things to watch for if you are building a
large SOE schema. The first is temp space. I guess
its obvious but if you are building a 1TB schema with
100GB+ tables the indexes are going to be pretty big
as well. If you are creating big indexes you need
plenty of TEMP. The number of schema’s
I’ve looked at that haven’t had their
indexes build is amazing. I guess this is partly my
fault as well. I’ll include a start and end
validation process in the next build. Should have
done this before but I guess people weren’t
building such big schema’s
As a guide line for a schema of size “x” I’d have at least “x/6” worth of temp space i.e. 1TB schema needs about 180GB of temp. You can resize it after the build to what ever you decide is appropriate.
As to what it should look like on completion... well something like this
Another really important thing is to include the SOE_MIN_CUSTOMER_ID and SOE_MAX_CUSTOMER_ID in the environment variables within the config file. This will reduce the startup time of the benchmark. Follow the instructions below or edit the config file
Select the Environment Variables tab and press the
button (you’ll need to do
this for each environment variable).
Add two Enviroment variables
You can determine what thes values are by running a piece of SQL similar to this when logged into the SOE schema
After adding the variables you should end up with something that looks similar to this
As a guide line for a schema of size “x” I’d have at least “x/6” worth of temp space i.e. 1TB schema needs about 180GB of temp. You can resize it after the build to what ever you decide is appropriate.
As to what it should look like on completion... well something like this
SOE@//localhost/orcl > @tables;
Tables
======
Table
Rows Blocks
Size Compression Indexes Partitions
Analyzed
-------------------- ----------
----- ------
----------- ------- ---------- ----------
WAREHOUSES
1,000
60
1024k Disabled
2
0
< Week
ORDERS
225,000
1,636
13M
Disabled
5
0
< Week
INVENTORIES
924,859
10,996
87M
Disabled
3
0
< Week
ORDER_ITEMS
587,151
2,392
19M
Disabled
3
0
< Week
PRODUCT_DESCRIPTIONS 1,000
60
1024k Disabled
2
0
< Week
LOGON
50,000
250
2M
Disabled
0
0
< Week
PRODUCT_INFORMATION
1,000
60
1024k Disabled
3
0
< Week
CUSTOMERS
200,000
2,014
16M
Disabled
5
0
< Week
Another really important thing is to include the SOE_MIN_CUSTOMER_ID and SOE_MAX_CUSTOMER_ID in the environment variables within the config file. This will reduce the startup time of the benchmark. Follow the instructions below or edit the config file
Select the Environment Variables tab and press the
Add two Enviroment variables
- SOE_MIN_CUSTOMER_ID : The value equals the smallest customer id in the data set, usually 1
- SOE_MAX_CUSTOMER_ID : The largerst customer id found in the data set
You can determine what thes values are by running a piece of SQL similar to this when logged into the SOE schema
SELECT
/*+
PARALLEL(CUSTOMERS, 8)
*/
MIN(customer_id) SOE_MIN_CUSTOMER_ID,
MAX(customer_id) SOE_MAX_CUSTOMER_ID
FROM customers
After adding the variables you should end up with something that looks similar to this
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