Cube maintenance time increases every time it runs

Hi,
I have created a cube in AWM (10.1.0.4) with five dimensions. This cube is set to not to preaggregate any levels in order to have a short maintenance time. First time I maintained the cube it took about 3 minutes. In order to get a average maintenance time i chose to maintain the cube a few times more. For every time I did this, the cube used a bit more time to maintain and last time it used 20 minutes. Every time i checked the "aggregate the full cube" option and no data is added to the source tables.
I also checked the tablespace that the AW is stored in and it also increases for each run. Its now using 1,6 gb.
The database version is 10.1.0.4.0
Anyone have any ideas to what I can do?
Regards
Ragnar
edit: I did a few more runs and the last run time was 40 minutes and the tablespace is now using 4,1gb so I think this is where the problem is. Instead of overwriting the old data it seems that it just adds it, making the tablespace bigger for each time.
Message was edited by:
rhaug

Hi,
seems like I have resolved this problem now. I had made several cubes that were almost identical. Only difference was how they aggregated the data. One was full aggregation, one was skip-level aggregation and the last didn't have any. The reason I did this was to be able to compare maintenance time and see how this affected the response time to the cube. I am not sure what causes this, but I never managed to aggregate the cubes correctly. The cube with full aggregation took just about a minute or two to maintain and when i chose to view the data it took another minute.
So my impression was that it was aggregating all the data runtime.
When I tried to maintain any of the cubes after this, I got some different errors. Usually the maintenance failed when the tablespaces couldn't grow anymore. The temp tablespace was at this point beyond 20gb.
I then thought that the name of the measures in the cube could have something to do with the errors I got, and renamed them so they were unique in the AW. The tablespaces grew large also this time, but the maintenance stopped because of an out of memory error.
Then i deleted all cubes but one and tried to maintain it. After about 35 minutes it was done and when i chose to view the data, they seemed to be precalculated and the response time was good. The tablespace containing the AW also seems normal in size, around 500mb. I did several test runs during the night, and since yesterday the cube has successfully been maintained 15 times.
So this brings me to my question.
Can a AW only contain one cube? Or is it just a user error from my part? To me it seems a bit weird that you only can have one cube using the same dimensions, so I'm not sure if this is a right way of doing it, but it works.
Anyone have any input or similar experiences?
Regards
Ragnar

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Cube maintenance time increases every time it runs

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