What does this mean?

Node Operators troubleshooting
1

upload canceled {“Piece ID”: “5CNM4KWCJCM5KITAFDG2I637UNFDEGEDPVKQSSVSABUMISBZQJXA”, “Satellite ID”: “12EayRS2V1kEsWESU9QMRseFhdxYxKicsiFmxrsLZHeLUtdps3S”, “Action”: “PUT”, “Size”: 0}

How can size be zero ?

2

Hello,
Bad code maybe. The customers trying out the network, so something like that could be expected.

4

Could it also just have been cancelled before any data was transferred?

5

Maybe
I do have such messages too (only two so far)

2021-01-26T07:52:38.982Z        INFO    piecestore      upload canceled {"Piece ID": "5VJ6Q647PGRB6TZW2NAXRCSFD5VT2BYCTC5UPGLENQ5I4ROM2S5A", "Satellite ID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs", "Action": "PUT", "Size": 0}
2021-01-26T15:20:41.028Z        INFO    piecestore      upload canceled {"Piece ID": "4IUWFHIHIIISLPT4I2ZRMCQSQQ5OZM4YN3UN4BOKK3D7LC74CVVQ", "Satellite ID": "12L9ZFwhzVpuEKMUNUqkaTLGzwY9G24tbiigLiXpmZWKwmcNDDs", "Action": "PUT", "Size": 0}