dm precheck only check LightningTableEmptyChecking will failure

[River2000i]

What did you do?

creata all task with

ignore-checking-items: ["empty_region", "region_distribution", "downstream_version", "free_space", "downstream_mutex_features"]

except "LightningTableEmptyChecking"

What did you expect to see?

precheck success

What did you see instead?

[2024/12/27 15:51:15.064 +08:00] [WARN] [pd_service_discovery.go:843] ["[pd] failed to get cluster id"] [url=https://noop:2379] [error="[PD:client:ErrClientGetMember]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE"]
[2024/12/27 15:51:16.059 +08:00] [WARN] [pd_service_discovery.go:843] ["[pd] failed to get cluster id"] [url=https://noop:2379] [error="[PD:client:ErrClientGetMember]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE"]
[2024/12/27 15:51:17.059 +08:00] [WARN] [pd_service_discovery.go:843] ["[pd] failed to get cluster id"] [url=https://noop:2379] [error="[PD:client:ErrClientGetMember]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE"]
[2024/12/27 15:51:18.060 +08:00] [WARN] [pd_service_discovery.go:843] ["[pd] failed to get cluster id"] [url=https://noop:2379] [error="[PD:client:ErrClientGetMember]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE"]
[2024/12/27 15:51:19.060 +08:00] [WARN] [pd_service_discovery.go:843] ["[pd] failed to get cluster id"] [url=https://noop:2379] [error="[PD:client:ErrClientGetMember]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE"]
[2024/12/27 15:51:20.060 +08:00] [WARN] [pd_service_discovery.go:843] ["[pd] failed to get cluster id"] [url=https://noop:2379] [error="[PD:client:ErrClientGetMember]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup noop: no such host\" target:noop:2379 status:TRANSIENT_FAILURE"]

tiflow/dm/checker/checker.go

Lines 441 to 443 in 8da035c

	if lightningCheckGroupOnlyTableEmpty(c.checkingItems) {
	lCfg.TiDB.PdAddr = "noop:2379"
	}

set pd address to noop

tiflow/dm/config/checking_item.go

Lines 77 to 85 in 8da035c

	// LightningPrechecks returns all checking items for lightning.
	var LightningPrechecks = []string{
	LightningEmptyRegionChecking,
	LightningRegionDistributionChecking,
	LightningDownstreamVersionChecking,
	LightningFreeSpaceChecking,
	LightningMutexFeatureChecking,
	LightningTableEmptyChecking,
	}

Versions of the cluster

DM version (run dmctl -V or dm-worker -V or dm-master -V):

(paste DM version here, and you must ensure versions of dmctl, DM-worker and DM-master are same)

Upstream MySQL/MariaDB server version:

(paste upstream MySQL/MariaDB server version here)

Downstream TiDB cluster version (execute SELECT tidb_version(); in a MySQL client):

(paste TiDB cluster version here)

How did you deploy DM: tiup or manually?

(leave TiUP or manually here)

Other interesting information (system version, hardware config, etc):

>
>

current status of DM cluster (execute query-status <task-name> in dmctl)

(paste current status of DM cluster here)