This is being raised when using an Esri ArcGIS Portal Service Feature Writer.
24,000 features out of 94,000 are successfully written before this is raised by FME Desktop 2019.1.00Solved
Python Exception : 502 Server Error: Bad Gateway for url
Best answer by bruceharold
Hi, you can try reducing the features per request to avoid the underlying timeout. FeatureWriter badly needs a Rejected port so you can implement retry logic. Also raise a support call with Esri and request advice on this.
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