maxscale Connection reset by peer

Dear ,
I met a problem when I used the maxscale.The version is 2.0.1. Every second It'll produce a lot of error messages.The error message is as follows.
2017-03-14 15:18:46.946 error : (gw_write): Write to dcb 0x7f808c013350 in state DCB_STATE_ALLOC fd 18 failed due errno 104, Connection reset by peer
2017-03-14 15:18:47.565 error : (gw_write): Write to dcb 0x115f2e0 in state DCB_STATE_ALLOC fd 28 failed due errno 104, Connection reset by peer
2017-03-14 15:18:47.778 error : (gw_write): Write to dcb 0x7f8080020500 in state DCB_STATE_ALLOC fd 47 failed due errno 104, Connection reset by peer
2017-03-14 15:18:47.930 error : (gw_write): Write to dcb 0x7f808c014470 in state DCB_STATE_ALLOC fd 28 failed due errno 104, Connection reset by peer

But I also can connect Mysql via maxscale normally.please help me,I can't wait to get the reason,Thanks.Look forward to your reply.