zentol commented on a change in pull request #6731: [FLINK-10312] Propagate exception from server to client in REST API URL: https://github.com/apache/flink/pull/6731#discussion_r219797498
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/rest/handler/AbstractRestHandler.java ########## @@ -111,10 +112,13 @@ protected AbstractRestHandler( private void processRestHandlerException(ChannelHandlerContext ctx, HttpRequest httpRequest, RestHandlerException rhe) { log.error("Exception occurred in REST handler.", rhe); + String serverSideExceptionMesssage = "\n<Exception on server side:\n" + + ExceptionUtils.stringifyException(rhe) + "\nEnd of exception on server side>"; + HandlerUtils.sendErrorResponse( ctx, httpRequest, - new ErrorResponseBody(rhe.getMessage()), + new ErrorResponseBody(Arrays.asList(rhe.getMessage(), serverSideExceptionMesssage)), Review comment: I would prefer if we only did this in case of an Internal server error as a fallback. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services