Changefeed fails to complete scheduling, leading to increased lag.

[asddongmen]

[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=1299165767673896477815066164435259074189] [operator="occupy dispatcher operator: 1299165767673896477815066164435259074189"] [timeSinceCreated=1m52.299523811s]
[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=11714502402875047304726561774674692244] [operator="occupy dispatcher operator: 11714502402875047304726561774674692244"] [timeSinceCreated=1m52.299523421s]
[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=1810788598579015289516583578847061352096] [operator="occupy dispatcher operator: 1810788598579015289516583578847061352096"] [timeSinceCreated=1m52.299522753s]
[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=152248588298755442506704937546094822590] [operator="occupy dispatcher operator: 152248588298755442506704937546094822590"] [timeSinceCreated=1m52.299522276s]
[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=88852052841473598165338712319020630180] [operator="occupy dispatcher operator: 88852052841473598165338712319020630180"] [timeSinceCreated=1m52.29952279s]
[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=2542165647082022410274296199725755303] [operator="occupy dispatcher operator: 2542165647082022410274296199725755303"] [timeSinceCreated=1m52.299523156s]
[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=38183776223701626014786840951745487234] [operator="merge dispatcher operator new dispatcherID: 38183776223701626014786840951745487234, mergedSpanInfo: [7480000000000000ffe55f720000000000fa,7480000000000000ffe55f72a5e353f7ceffd914f80000000000fa,229][7480000000000000ffe55f72a5e353f7ceffd914f80000000000fa,7480000000000000ffe55f72c1f44cf711ff88ec6f0000000000fa,229][7480000000000000ffe55f72c1f44cf711ff88ec6f0000000000fa,7480000000000000ffe55f72c952f90ec5ffc846440000000000fa,229][7480000000000000ffe55f72c952f90ec5ffc846440000000000fa,7480000000000000ffe55f72cf8f783cf1ff6d36920000000000fa,229][7480000000000000ffe55f72cf8f783cf1ff6d36920000000000fa,7480000000000000ffe55f72f589697db9ff8e33c60000000000fa,229][7480000000000000ffe55f72f589697db9ff8e33c60000000000fa,7480000000000000ffe55f730000000000fa,229]"] [timeSinceCreated=1m52.299499857s]
[2025/09/05 13:14:58.121 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=207513254465766449643179877421461632] [operator="add dispatcher operator: 207513254465766449643179877421461632, dest:77f6c073-b5d2-48ff-bdee-bda14838d854"] [timeSinceCreated=12m12.64634287s]
[2025/09/05 13:14:58.321 +08:00] [WARN] [operator_controller.go:255] ["operator is still in running queue"] [changefeed=test3] [operator=207513254465766449643179877421461632] [operator="add dispatcher operator: 207513254465766449643179877421461632, dest:77f6c073-b5d2-48ff-bdee-bda14838d854"] [timeSinceCreated=12m12.846378543s]