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Re: [amibroker] When AFL just stops updating the chart now and then...



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Tomasz,

I can add a little more information to this problem now.

This morning about 11:45 ET my chart stopped again.
I was trading ES and the market was fairly fast.
I have a Bar%Done graph that advances every second.
It takes the start time of the last bar and compares it to Now.
It stopped advancing.
I clicked to another chart tab and back again.
That made it advance one time, but would not continue running.
Clicking on the refresh chart made it go again.

So I think that my AFL formula stopped running.

I will verify that by other means the next time.

Best regards,
Dennis


On Jun 28, 2008, at 9:08 AM, Dennis Brown wrote:

> Tomasz,
>
> Thanks for the AFL suggestion.
>
> My Refresh Interval in Prefs is set to 1 at this time.  In the past I
> have also used 1, 2, or 3 settings.  However, I have a
> RequestTimesRefresh() that is set via parameter in the chart.  At his
> time it is set to zero, though this has also happened with it set to
> other numbers (usually 1).  I adjust these numbers depending on how
> much history I am using at the time in order to keep them higher than
> the actual time it takes to refresh the chart, so that the UI keeps
> working.
>
> This has happened to me for a couple of years and my charts and AFL
> have evolved to significant complexity over that time, along with
> changing computers and data vendors.
>
> I don't recall the problem happening when I was actively using the UI
> on the chart.  It usually happens when the chart is just quietly
> updating and then just stops updating.  I am usually just in the mode
> of waiting for something to happen on the charts while I am waiting to
> get into or out of a trade.  I can not recall my previous operations,
> but I do a LOT of trend line studies. I doubt this problem could be
> easily reproduced --otherwise you would have customers complaining all
> over the place.
>
> I can tell you that clicking on most UI buttons or pulldown menus or
> clicking on the chart does not fix it.  Only clicking on the Refresh
> button fixes it.
>
> I will take your AFL suggestions and some others and see if I can get
> better information about what is happening for the next time.  Since
> it does not happen often, it is not so bad for me to click the Refresh
> button when it happens.  The bad part is not realizing that it is not
> refreshing for too long and missing an important price move.
>
> Hopefully the next time it happens I will not be in a trade and can
> take my time to investigate it better.
>
> Best regards,
> Dennis
>
> On Jun 28, 2008, at 4:29 AM, Tomasz Janeczko wrote:
>
>> Dennis,
>>
>> You can use
>> TextOut( ""+Now(), Status("pxwidth")-200, Status("pxheight")/2 );
>>
>> To display last refresh time - this may help detecting such problem.
>> It never happened on my end, but I would appreciate if someone
>> provides more
>> details under what circumstances it happens (what is your Prefs
>> "Refresh interval",
>> what do you do before that happens (use particular drawing tool
>> or ...?
>> does pressing F5 solves the problem ? I don't know...
>> just try to provide information that would make this reproducible).
>>
>> Best regards,
>> Tomasz Janeczko
>> amibroker.com
>> ----- Original Message -----
>> From: "Dennis Brown" <see3d@xxxxxxxxxxx>
>> To: <amibroker@xxxxxxxxxxxxxxx>
>> Sent: Saturday, June 28, 2008 3:37 AM
>> Subject: [amibroker] When AFL just stops updating the chart now and
>> then...
>>
>>
>>> 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
>>>
>>>
>>> ------------------------------------
>>>
>>> Please note that this group is for discussion between users only.
>>>
>>> To get support from AmiBroker please send an e-mail directly to
>>> SUPPORT {at} amibroker.com
>>>
>>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>>> http://www.amibroker.com/devlog/
>>>
>>> For other support material please check also:
>>> http://www.amibroker.com/support.html
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>
>> ------------------------------------
>>
>> Please note that this group is for discussion between users only.
>>
>> To get support from AmiBroker please send an e-mail directly to
>> SUPPORT {at} amibroker.com
>>
>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
>> http://www.amibroker.com/devlog/
>>
>> For other support material please check also:
>> http://www.amibroker.com/support.html
>> Yahoo! Groups Links
>>
>>
>>
>
>
> ------------------------------------
>
> Please note that this group is for discussion between users only.
>
> To get support from AmiBroker please send an e-mail directly to
> SUPPORT {at} amibroker.com
>
> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
> http://www.amibroker.com/devlog/
>
> For other support material please check also:
> http://www.amibroker.com/support.html
> Yahoo! Groups Links
>
>
>


------------------------------------

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