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Open Bug report MC-2859

Quote manager and screener not working

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Description

Hi,

I'm trying to screen stocks with screeners that I developed but in general it just seems the quote manager and screener does not work for stock data.

At first, I tried using the quote manager connected online but unfortunately when you look at the log in Quote Manager it keeps on downloading data (refreshing) that is already available in the data sources so the whole screening process grinds down to a halt.

Secondly, I opted to disconnect MC, work offline and use the ASCII mapping. I downloaded the data into ASCII files that I mapped into the quote manager, this still does not work - the quote manager no returns "Not enough data" in the screener or just returns empty lines.

The general setup for the screener is from 7 April 2023 for 1300 bars back per instrument, that would be around 5 years of data. The screen is over a set of around 5313 nano to mid-cap stocks, this data as a whole is less than 1GB (OHLCV CSV format data) - the machine has 16GB of RAM (47% used with the screener running) with 8 processing cores running at 2.6GHz (25% used with the screener running). Looking at the MC process in task manager it really does not look like it's even trying to load this data, the resource usage remains at around 1.6GB of RAM with little to no processor usage, so in general it just looks like the scanner is not working.

I checked the data in the ASCII files and there are more than enough data for these stocks, some going back as far as 1980. Some of the stocks I suspect could have less data than the 1300 bars, would this cause an issue? I would think the scanner would just run over it/ignore it.

Regarding the ASCII mappings, the directory contains a total of 8265 files mapped into the Quote Manager with a total size of around 1.3GB - I do not load all these files, some of them are large and mega cap stocks that I leave out of the screen.

I'll try to attach the stock list, workspace, indicators used with screenshots of what's happening.

Any ideas on how to correct this? Thank you in advance for your help.

Kind regards,
Ettienne

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Comments (1)
#1
user-offline.png  MultiCharts Support (MultiCharts)
Apr 11, 2023 - 17:29
Hi Ettienne!

The described behaviour is not reproduced on our end.

We’d recommend checking the following points: 1. Whether the same behaviour is reproduced with pre-built studies 2. Whether the same behaviour is reproduced with one problematic symbol in the Scanner only 3. Is it possible to plot a chart for one of the problematic symbols? If you insert your study onto the chart, is it calculated?

If it doesn’t help, please reproduce the behaviour in Offline mode with the smallest possible amount of regular instruments (not ASCII Mapping).

When it’s reproduced, please send us a report via the main MultiCharts window -> Help -> Feedback. In the description field please specify the steps required to reproduce the issue. Then select the following options: Attach a screenshot; (please make sure the issue is visible; if required, send screenshots separately) Attach log files…; Snapshot of the current MC setup; Open workspaces…; Data for all instruments; Active indicators...; Active signals...; Custom resolution plugins; Upload collected data to Help Desk; uncheck other options and click Send.

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