The error log of TSO doesn't print the cause

[CabinfeverB]

Bug Report

[2023/12/06 10:46:41.796 +08:00] [ERROR] [tso_dispatcher.go:498] ["[tso] getTS error"] [dc-location=global] [stream-addr=http://127.0.0.1:49408] [error="[PD:client:ErrClientGetTSO]get TSO failed, after processing requests"]

but

pd/client/tso_dispatcher.go

Lines 493 to 496 in ef6ba85

	log.Error("[tso] getTS error",
	zap.String("dc-location", dc),
	zap.String("stream-addr", streamAddr),
	errs.ZapError(errs.ErrClientGetTSO.FastGenByArgs("after processing requests"), err))

And more, I do a test for ZapError

err1 := errors.New("test")
	log.Error("[pd] failed to close grpc clientConn", errs.ZapError(errs.ErrCloseGRPCConn, err1))

It prints

[2023/12/06 10:53:11.164 +08:00] [ERROR] [client_test.go:505] ["[pd] failed to close grpc clientConn"] [error="[PD:grpc:ErrCloseGRPCConn]test: test"] [stack="github.com/tikv/pd/tests/integrations/client_test.TestCustomTimeout\n\t/Users/jiangyongbo/github/pd/tests/integrations/client/client_test.go:505\ntesting.tRunner\n\t/usr/local/go/src/testing/testing.go:1595"]

"close gRPC connection failed" is overwritten by "test"

What did you do?

What did you expect to see?

What did you see instead?

What version of PD are you using (pd-server -V)?