Hi Debbie,

You don't need to start over with a new database.

When gathering data from IM, the bug caused the importer to create duplicate 
entries for certain datapoints.  But there's a safety mechanism where, when it 
tries to actually insert those entries into the database, it discovers the 
problem and discards the duplicates.  Even so, this resulted in a significant 
decrease in performance, due to having to re-run the import, as well as a bunch 
of warnings in the log.

5.4.4 just prevents those duplicates from being created.

Regarding the time it's taking to import old data, how many datasets are you 
exporting, and what retention policy do you have assigned to them?

For comparison, we have a machine here - a couple of years old - that we use 
for performance testing.  It has 1500 devices at a 30-second poll, 60000 
interfaces and 8500 exported datasets.  Starting with a fresh database, it 
processes roughly 3-4 weeks of historical data per day.

That machine does have the advantage of not doing much besides IM & IMDC, so 
real-world performance will be less.  But unless something else on the machine 
is hitting the disk, that's roughly what we expect for that number of datasets. 
 If your experience is way off that, please let me know.  Thanks,

David


Debbie Fligor wrote:
> In reading the release notes to finally get upgraded from 5.3 to 5.4, I 
> noticed that 5.4.4 fixes a problem where import thinks that there are 
> duplicate data entries when DaylightSavings time shifts.  Do I need to delete 
> my data-base and start the import again?


-----------
David Schnur
Dartware, LLC


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