Subject | Database Size + OH NO ! not Sweeping troubles again |
---|---|
Author | Craig |
Post date | 2005-11-24T00:57:36Z |
Hi All,
Please correct me if i am wrong, but if i have a database that
contains many records and one table is a list of blobs {data mainly
jpegs} that are deleted from time to time from the table, the
effective size of the database reported by the OS would decrease with
the deletion of this blob data. I have a database which i add data,
then later remove the jpegs from the blob table once i buyrn to cd.
However the database does not seem to reduce in size.
I have done some reading on Sweeping etc etc and this is what the
database is reporting to me
Sweep Interval = 20000
Forced Writes are on
Transaction - oldest = 24112
Transaction - oldest active = 24113
Transaction - oldest snapshot = 24112
Transaction - Next = 419254
I ran a manual sweep on the database that does not seem to have had
any impact. My question is am i wrong about the database resizing ?
and does the data above tell me something that i should be aware of ?
Thanks
Craig
Please correct me if i am wrong, but if i have a database that
contains many records and one table is a list of blobs {data mainly
jpegs} that are deleted from time to time from the table, the
effective size of the database reported by the OS would decrease with
the deletion of this blob data. I have a database which i add data,
then later remove the jpegs from the blob table once i buyrn to cd.
However the database does not seem to reduce in size.
I have done some reading on Sweeping etc etc and this is what the
database is reporting to me
Sweep Interval = 20000
Forced Writes are on
Transaction - oldest = 24112
Transaction - oldest active = 24113
Transaction - oldest snapshot = 24112
Transaction - Next = 419254
I ran a manual sweep on the database that does not seem to have had
any impact. My question is am i wrong about the database resizing ?
and does the data above tell me something that i should be aware of ?
Thanks
Craig