Log file handler


I would like to run locally in parallel Lean (QuantConnect.Lean.Launcher.exe) with different config files. I wonder how I can specify from command line a FileLogHandler with specific filepath, so that I have a different log for each run.


Update Backtest

Hey! I wanted the same thing and solved it in the following way (see Setup #2). This may not be entirely necessary but I did not find a simpler way.

To get a different log for each run, you don't need a different FileLogHandler. An easier way is to give each backtest a unique BacktestId. This can be done by writing your own JobQueue. In the repo version, the BacktestId is set here:

Update Backtest


The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by QuantConnect. In addition, the material offers no opinion with respect to the suitability of any security or specific investment. QuantConnect makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances. All investments involve risk, including loss of principal. You should consult with an investment professional before making any investment decisions.


This discussion is closed