Duplicate entry found error (Signals)

Vefa Gulecyuz shared this question 4 years ago

Hi guys, I receive below error multiple times for several dates while a Signal is running.

Duplicate entry found for 2020-01-12T00:00. In-memory aggregation is required. This can affect system performance, consider using a date field with correct granularity.

My date field is daily data in the attached format. I am trying to detect Signals on a weekly basis. I had similar Signals before on different datasets without this error.

My signal settings are also attached. All other parameters are default.

Why do you think this is happening?


Replies (3)


And even though it completed the run successfully (but rather slowly) for the first two times, I received the attached fail note on Monitor Signals page.

In the logs it says: YF:2020-01-28 13:28:44: WARN (DBAction:safeDisconnect) - Null Connection - couldn't terminate...


Hi Simon, thanks for the reply. Logs are uploaded: logs_vefa_30-01.zip


Hi Simon, thanks for the explanation.

I will try to use a date function with the granularity used in Signal settings. I hope this will improve performance.

You can close the ticket, thanks.

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