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Hi Dennis,
Perhaps you can help me - you'd be the first on this problem :(
The problem I described is ~daily.
MY AB workspace displays the quotes window, 1-2 t&s windows + 5
symbol-linked chart windows (1 min, 2 min, 5 min, 15 min and daily).
Each chart window has 8 sheets - but all these are empty except the
first sheet with 1-3 panes each and 1 window has a study on the
second sheet. Total time (sum) for the 5 charts via 'display chart
timing' is ~400 msec. Running through these charts afterhours is no
problem (local db is enabled).. I see all charts windows completed in
about 4 seconds after changing symbols.
What do you think are the best settings for the pref>data
tab 'default db settings' in-memory cache size (max symbols), (max
megabytes) and number of bars to load... for a 7400 bar, 100 symbol
db (and perhaps for a longer db with more symbols). What do these
fields actually mean/do? I have 4GB (3 GB available in vista32) and
no other programs running... so is it best to use >1000 megabytes?
What is number of bars to load (does db setting overwrite this?)?
DB settings has a 'flush cache' button. Doesn't seem to do anything
for me. Does it work for you? Refresh and refresh all has no
effect. If I do a refresh current sym, I get new data for that sym
but then no further updates for any symbol.
My db is 7400 1min bars*100 sym... are you working with a similar
size?
BTW, I know what you mean about getting hypnotized so I get alerted
to the quote delay with the following in the 1min chart - you can
probably get it to work with shorter periods or make it say something:
delayedcolor=IIf(TimeNum()<Now(4)-120 OR DateNum()<Now(3),32,16);
//for time at bar start-- 32=colorred, 16=colorblack , red if
last bar start-time is earlier than 1min20 sec of system time
//my bar times are at start of interval so min# could be 101
Plot( C, "Close", delayedcolor, styleNoTitle | ParamStyle("Style") |
GetPriceStyle() );
Thanks, Dan
--- In amibroker@xxxxxxxxxxxxxxx, Dennis Brown <see3d@xxx> wrote:
>
> Hello,
>
> I have something that happens once every few days with my RT charts.
>
> At some point in the day, the chart stops updating. I also have
> getRTData() functions in my AFL that also stop.
>
> I don't know if it is the data feed that stops handing the quotes
to
> AB, or if XP is not giving the data, or if the AFL loop stops
> running. Everything looks normal, but I notice that my broker's
> charts have moved ahead and my AB charts have stalled (My broker's
> charts are prone to stalling in fast markets and my AB charts keep
on
> ticking). This can be disconcerting when you are in a fast trade
and
> you go blind without realizing it.
>
> I am using DTN IQFeed, but the same thing happened with eSignal in
> previous years. The data feed plug-in indicates everything is
green
> and working.
>
> Clicking on the chart refresh button starts the chart running again.
>
> I am usually in a panic when this happens, so I have not been able
to
> properly go through debug steps to isolate the problem area.
>
> So my questions are:
>
> 1. Does anyone know the root cause of this?
> 2. Is there a way to detect that the chart has stopped updating
> (other than by eye)?
> 3. Is there a way to automatically jump start the updating again
when
> it happens?
>
> Thanks for any insights.
>
> If nobody can help, I will ask support.
>
> Best regards,
> Dennis
>
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