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<SPAN
class=192241706-05022003>Nick,
Tomasz
can probably speak to the difference in data base structure but from my
experience the QP data base is very fast. There may be a slight speed advantage
using the native AB data but that few seconds is surely not worth a 15 min shut
down.
<SPAN
class=192241706-05022003>
Just
out of curiosity go to your tree... Click "All". is the first listing a stock or
index or is it perhaps something that looks like
()
<SPAN
class=192241706-05022003>
If so
you have accumulated some junk that needs to be erased. Go to Symbols/Organize.
Check Markets. Under Undefined select (click and drag) all the way down the box
until you find the first stock or index. Now that all the junk is
highlighted press delete. The system will appear frozen and this may take a
while (several minutes) but once complete you should see a speed up in both
loading and shut down.
<SPAN
class=192241706-05022003>
I do
not know what causes the corruption but I do get it occasionally and this
"Works"
<SPAN
class=192241706-05022003>
<SPAN
class=192241706-05022003>Regards,
Jayson
<FONT face=Tahoma
size=2>-----Original Message-----From: Nick Molchanoff
<nkm@xxxxxxxxx> [mailto:nkm@xxxxxxxxx]Sent: Wednesday, February
05, 2003 1:06 AMTo: amibroker@xxxxxxxxxxxxxxxSubject:
[amibroker] Re: Extremely lengthy shutdown
processJayson,I knew that the local database
was not specifically necessary when uing QP, but I thought I had read in a
previous message from Tomasz on the board that maintaining the local storage
was imperative in order to facilitate the fastest possible operation of
backtests and explorations, so I have scrupuloulsy maintained the local
database ever since.Is this not correct? Is eliminating the
local database the only way to correct the lengthy shutdown? Will
doing so slow down backtesting and explorations?Thanks for your
response,Best Regards,Nick Molchanoff--- In
amibroker@xxxxxxxxxxxxxxx, "Jayson" <jcasavant@xxxx> wrote:>
Nick,> Using QP there is no need for Local storage. You might simply
configure the> plug in with "Disable" checked for local data
storage....> > Jayson> -----Original Message----->
From: Nick Molchanoff <nkm@xxxx> [mailto:nkm@xxxx]> Sent: Tuesday,
February 04, 2003 7:40 PM> To: amibroker@xxxxxxxxxxxxxxx> Subject:
[amibroker] Extremely lengthy shutdown process> > > When I
shut down AB, it takes 15 to 30 minutes to close. During this>
time it seems to access every stock's data through the QP plug-in,>
displaying messages about how many bars it has accessed.> > I
don't see why AB would have to re-access the whole history from QP> for
each stock on each shutdown. Since I update daily, it seems
like> only the last bar would be new, and therefore only this last
bar> should need to be added to the AB database, which doesn't seem
like> it would take that long since AB is so fast.> >
Often, having to wait for up to a half hour for it to finish is very>
inconvenient.> > Anybody know what may cause this behavior and
whether or not I can> configure in such a way as to eliminate this
wait?> > > >
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