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JFOREX-2215 DataCacheException
RoadRunner
 Post subject: JFOREX-2215 DataCacheException Post rating: 0   New post Posted: Tue 07 Sep, 2010, 14:30 
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the following error appeared before the strategy code starts executing.
(strategy run on tester, USD/JPY, period 2007.06.10 to 2007.07.21, ticks)

Quote:
2010-09-07 14:33:50.915 INFO Main - Strategy started: 1
2010-09-07 14:33:50.915 DEBUG DCClientImpl - Strategy execution progress: Getting prices before start time
2010-09-07 14:33:50.916 INFO Main - Getting prices before start time
2010-09-07 14:33:50.934 ERROR t - Time is not valid candle start time for period requested
com.dukascopy.charts.data.datacache.DataCacheException: Time is not valid candle start time for period requested
at com.dukascopy.charts.data.datacache.p.<init>(Unknown Source)
at com.dukascopy.charts.data.datacache.b.b(Unknown Source)
at com.dukascopy.charts.data.datacache.b.a(Unknown Source)
at com.dukascopy.dds2.greed.agent.strategy.tester.t.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
 
[Phantal]
 Post subject: Re: JFOREX-2215 DataCacheException Post rating: 0   New post Posted: Wed 08 Sep, 2010, 22:29 

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Round the time you pass into it for the start & end time. As I recall, I just had to round off the milliseconds.

-Brian
 
RoadRunner
 Post subject: Re: JFOREX-2215 DataCacheException Post rating: 0   New post Posted: Mon 13 Sep, 2010, 20:43 
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Hi Brian,

thanks for your hint. We are already cutting ms off the start time when retrieving bars.
The error did occur before onStart() or onTick() are called (i.e. while DK is "getting prices before start time").
However, after restarting the client and starting the strategy again for the very same period, no error did occur.

Best,
RR.
 
[Phantal]
 Post subject: Re: JFOREX-2215 DataCacheException Post rating: 0   New post Posted: Tue 14 Sep, 2010, 07:46 

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The intermittent behavior you describe is exactly what I was seeing. I haven't encountered it since I started rounding the times. If you figure it out, please post a message about it; heaven knows I might run into the same thing.

-Brian
 
RoadRunner
 Post subject: Re: JFOREX-2215 DataCacheException Post rating: 0   New post Posted: Sat 11 Dec, 2010, 14:32 
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this post is already moved to "fixed bugs".

However I would like to report the cause of the error message, that I recently detected.

It did happen by setting client.setDataInterval (...) to from/to times that included milliseconds != 0.

Best, RR.
 
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