[2023/11/16 15:16:35.470 +08:00] [INFO] [FlashService.cpp:163] ["Handling coprocessor request, is_remote_read: true, start ts: 445675976869281798, region info: 1043, region epoch: conf_ver: 4\nversion: 116\n"] [source=FlashService] [thread_id=222]
[2023/11/16 15:16:35.481 +08:00] [DEBUG] [LateMaterializationBlockInputStream.cpp:100] ["Late materialization skip read block at start_offset: 1642772, rows: 2545"] [source="LateMaterializationBlockInputStream CoprocessorHandler table_id=97"] [thread_id=7]
[2023/11/16 15:16:35.519 +08:00] [INFO] [FlashService.cpp:163] ["Handling coprocessor request, is_remote_read: true, start ts: 445675975558561814, region info: 700, region epoch: conf_ver: 4\nversion: 66\n"] [source=FlashService] [thread_id=285]
[2023/11/16 15:16:54.940 +08:00] [INFO] [BaseDaemon.cpp:1172] ["Welcome to TiFlash"] [thread_id=1]
[2023/11/16 15:16:54.940 +08:00] [INFO] [BaseDaemon.cpp:1173] ["Starting daemon with revision 54381"] [thread_id=1]
[2023/11/16 15:16:54.940 +08:00] [INFO] [BaseDaemon.cpp:1176] ["TiFlash build info: TiFlash\nRelease Version: v7.1.1\nEdition: Community\nGit Commit Hash: 338634ade2b7cf60c9a993c44c259bfe69b9ad7b\nGit Branch: heads/refs/tags/v7.1.1\nUTC Build Time: 2023-07-13 09:56:39\nEnable Features: jemalloc sm4(GmSSL) avx2 avx512 unwind thinlto\nProfile: RELWITHDEBINFO\n"] [thread_id=1]
[2023/11/16 15:16:54.940 +08:00] [INFO] [<unknown>] ["starting up"] [source=Application] [thread_id=1]
看不出什么问题，除了日志截断和tiflash启动记录 
你只连了一个tidb server吗？是的话，可以发下出问题那段时间的tidb server log和 pd log