Thanks for your response. I am still working on trying to replicate the issue / combined with looking very closely at tonights ETL run to see what's happening. To answer a couple of your questions. This is a 16k blocksize DB. The extents are uniform and the tablespaces are all locally managed with auto segment space management (ASSM). I found a few bugs with ASSM but none impacting 10.2.0.4. A few in 10.2.0.2 that were fixed in 10.2.0.3. I am trying to replicate the issue but it's driving me nuts :) On Mon, Jan 11, 2010 at 8:46 PM, Mark W. Farnham <mwf@xxxxxxxx> wrote: > Okay, ASSM has to do with which block you insert a row into in the > already allocated extents in non-bulk or direct insert operations. But if > you’re bumping up form 17G to 640G, that has to do with more extents. > > > > So, what is your style and size? We know you’re locally managed since > you’re ASSM. Are you system or uniform? What is your blocksize and what is > your size? System can trigger large incremental growth something like a > non-zero percent free. Uniform is uniform, so you can change the size of > extents only at create time. > > > > There was a bug for a while where each session failing to find an eligible > block to insert into asked for a new extent without checking if another > session had already asked for a new extent, so if you had many sessions > inserting concurrently that could trigger a rapid expansion like the > behavior of the universe before Planck time. But I thought that was fixed at > least 18 months ago. > > > > Probably it is worth looking for the support note. > > > > mwf > > > ------------------------------ > > *From:* oracle-l-bounce@xxxxxxxxxxxxx [mailto: > oracle-l-bounce@xxxxxxxxxxxxx] *On Behalf Of *Thomas Roach > *Sent:* Monday, January 11, 2010 5:56 PM > *To:* Oracle Discussion List > *Subject:* Partitions expanding above the HWM > > > > 4 node RAC - 10.2.0.4 > > Linux x86_64 RHEL 5.3 > > > > Tablespace > > ASSM on the Tablespaces (but the table has PCTFREE of 10 and PCTUSED of 0 > "which should be ignored because of ASSM." > > > > Reporting Table > > Partitioned by hash into 16 partitions. > > Degree of parallel is 1. > > PCTUSED 0 > > PCTFREE 10 > > > > Staging Table > > Partitioned by server name (7 partitions) > > Parallelization is enabled > > > > I am having an issue with a table that is just using way too much disk > space. As of today, it was using 640GB. I shrunk it down to about 17GB by > using the move partition command with update indexes. As data is inserted, > it appears to be > > > > I initially thought I had it when I saw PCTUSED 0, but then I found the > tablespace was ASSM, so this value "should" be ignored. I found the package > that loads this table from a staging table. > > > > What happens is this. > > > > "INSERT INTO table SELECT * FROM staging_table" > > > > THEN > > > > "DELETE FROM table WHERE EXISTS" > > > > So, I set up a little test case, and I can't seem to replicate the data. > This is not doing anything with APPEND in this package that does the ETL. I > tested with parallel dml enabled at the session level and that yielded no > results. Does anyone have any ideas what I might be missing? Could this be a > bug with ASSM? Any help would greatly be appreciated as I have banged my > head against the monitor all day (not literally). > > > > Thanks! > -- Thomas Roach 813-404-6066 troach@xxxxxxxxx