[Issue/Bug report] Research Notebook Auto Restart

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[Issue/Bug report] Research Notebook Auto Restart

posted Mar 6, 2017

API Using Data Research

Hi, I am reporting an issue that the research notebook will auto-restart without any hint during my daily usage.

I loaded like 1000-2000 securities for 4-5 years, by querying get_fundamentals for 40-60 times (every time I only fetch one month's data otherwise the API is not responsible, throwing me connection error) . It takes like 20 seconds for one query and up to 10 mins to get all of them (4-5 years).

The initial memory usage is about 20% after loading. And it increased to around 50% or so after I did some manipulation and calculation. Sometimes at this stage (with around 50% memory usage), when I tried to do some other actions, the notebook crashed and auto restarted (memory usage back to 8%-10% after initialization) and all my working space is swiped. So I have to reload the data and recalculate everything I had got before this crash/auto-restart.

I know the notebook is in beta version and I think the developers may have some way to get my crash logs for more detailed information regarding this issue. Hopefully this issue can be fixed in the future.

1 response

Did anyone have the same issue? Basically the issue is, research notebook will restart occasionally when memory usage reaches some level. The crash threshold level in my experience can be as low as 40%, and as high as 70%. I never utilize more than 70% memory before notebook crashes.

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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 Quantopian.

In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian 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.