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messages of errors when strategy running
fxgirl
 Post subject: messages of errors when strategy running Post rating: 0   New post Posted: Tue 03 Jan, 2012, 19:16 
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Joined: Sun 09 Oct, 2011, 15:43
Posts: 7
Location: ChinaChina
Hello support,

I got the following messages quite often recently. They didnot appear in the past.

For example,

Quote:
18:10:31 Strategy thread queue overloaded with tasks. Ticks in queue - 17, bars - 1292, other tasks - 8

18:10:31 com.dukascopy.charts.data.datacache.DataCacheException: Cannot execute request for data for instrument [EUR/USD] period [1 Min] side [Bid] from [2012.01.03 17:59:00 000] to [2012.01.03 17:59:00 000] attempt [5] @ com.dukascopy.charts.data.datacache.t.a(Unknown Source)


Kindly let me know what I should do.

Thank you very much. I wish you a prosperous 2012!
 
API Support
 Post subject: Re: messages of errors when strategy running Post rating: 0   New post Posted: Wed 04 Jan, 2012, 09:06 
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Joined: Fri 31 Aug, 2007, 09:17
Posts: 6139
The most likely reason for this is in onBar method:
  • an infinite loop,
  • an irresponsive execution block,
  • an execution block which in average takes more time than the onBar period (i.e. a new bar arrives before the execution of onBar of previous bar completes), such that the bars eventually queue up.
 
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