LVS's DR mode accepts a request, and both backend Server have requests?

DR mode of LVS theoretically VIP accepts requests to modify the MAC address according to the algorithm and forwards it directly to the rear server. But I grabbed the packet through Tcpdump and found that VIP accepted a request, and all the rear servers had packets coming in. I"m not very good at reading Tcpdump"s packages, so I posted the results of the grab.
the Server side that should not accept the request received the following request:

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Aug.23,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bf0c94-31d12.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf0c94-31d12.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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