cdc.log里的error信息：
[2022/07/04 17:35:29.728 +08:00] [ERROR] [client.go:319] ["[pd] getTS error"] [error="[PD:client:ErrClientGetTSO]rpc error: code = Unknown desc = [PD:tso:ErrGenerateTimestamp]generate timestamp failed, generate global tso maximum number of retries exceeded"]
[2022/07/04 17:35:29.729 +08:00] [ERROR] [pd.go:130] [“updateTS error”] [error=“rpc error: code = Unknown desc = [PD:tso:ErrGenerateTimestamp]generate timestamp failed, generate global tso maximum number of retries exceeded”] [errorVerbose=“rpc error: code = Unknown desc = [PD:tso:ErrGenerateTimestamp]generate timestamp failed, generate global tso maximum number of retries exceeded\ngithub.com/tikv/pd/client.(*client).processTSORequests\ \tgithub.com/tikv/pd@v1.1.0-beta.0.20210105112549-e5be7fd38659/client/client.go:355\ github.com/tikv/pd/client.(*client).tsLoop\ \tgithub.com/tikv/pd@v1.1.0-beta.0.20210105112549-e5be7fd38659/client/client.go:304\ runtime.goexit\ \truntime/asm_amd64.s:1357\ github.com/tikv/pd/client.(*tsoRequest).Wait\ \tgithub.com/tikv/pd@v1.1.0-beta.0.20210105112549-e5be7fd38659/client/client.go:466\ github.com/tikv/pd/client.(*client).GetTS\ \tgithub.com/tikv/pd@v1.1.0-beta.0.20210105112549-e5be7fd38659/client/client.go:486\ github.com/pingcap/tidb/util/execdetails.InterceptedPDClient.GetTS\ \tgithub.com/pingcap/tidb@v1.1.0-beta.0.20210512055339-e25d1d0b7354/util/execdetails/pd_interceptor.go:60\ github.com/pingcap/tidb/store/tikv/oracle/oracles.(*pdOracle).getTimestamp\ \tgithub.com/pingcap/tidb@v1.1.0-beta.0.20210512055339-e25d1d0b7354/store/tikv/oracle/oracles/pd.go:103\ github.com/pingcap/tidb/store/tikv/oracle/oracles.(*pdOracle).updateTS\ \tgithub.com/pingcap/tidb@v1.1.0-beta.0.20210512055339-e25d1d0b7354/store/tikv/oracle/oracles/pd.go:128\ runtime.goexit\ \truntime/asm_amd64.s:1357”]