kangkaisen commented on issue #285: Fix BE can't be grayscale upgraded URL: https://github.com/apache/incubator-doris/pull/285#issuecomment-437271290 BE can't be grayscale upgraded even if I using the latest code. I upgraded one BE from 0.8.2.1 to latest version. When I query, mysql client error is following; ``` ERROR 1064 (HY000): Ocurrs time out with specfied time xxx MILLISECONDS or ERROR 1064 (HY000): failed to send batch ``` The latest BE warning logs: ``` W1109 14:43:35.397363 28981 data_stream_sender.cpp:125] failed to send brpc batch, error=No such method, error_text=[E1002][10.24. 104.124:8060][E1002]Fail to find method=doris.PInternalService/transmit_data ``` The 0.8.2.1 BE warning logs ``` W1109 14:43:37.406872 10384 data_stream_sender.cpp:149] failed to send brpc batch, error=No such method, error_text=[E1002][10.20.93.37:8060][E1002]Fail to find method=palo.PInternalService/transmit_data ``` The cause for this error is obvious， So I think this issue have not been fixed completely.
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