realtimeBar no longer responsive

[Derek Tishler]

I have been using realtimeBar with success but just recently I have noticed that it is no longer updating every 5 seconds when new price data is shown in TWS. Sometimes  Is anyone else having similar trouble?

[Derek Tishler]

I was able to fix the trouble with a sleep() call.

I was using code that constantly checked the length of a pandas dataframe to ensure new data has come in for the real time bars. It seems that recently this became an issue and the cpu was going nuts and somehow missing or preventing a write to the dataframe to allow new data to come in?

Either way I have the system sleep for .25 seconds between checks and now everything is back to working fine. When the price action is updated in TWS, I then see my system also immediately react as it was doing before.

[Alejandro Mazzuca]

Tomorrow there is an IB Webinar, probably will interest you.

Topic: QuantInsti - Implement Algo Trading coded in Python using Interactive Brokers API 
Host: Cynthia Tomain 
Date and Time: 
Thursday, November 10, 2016 9:30 am, Eastern Standard Time (New York) 

You can register at https://interactivebrokers.webex.com/interactivebrokers/onstage/g.php?t=a&d=719771084&sourceid=ibview

Regards

Alejandro.

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