为提高效率，请提供以下信息，问题描述清晰能够更快得到解决：
【TiDB 版本】
版本：TiDB 4.0
【问题描述】
在使用binlogctl修改pump节点的状态信息时候，提示以下异常：
./bin/binlogctl -pd-urls=http://192.168.112.101:2379 -cmd update-pump -node-id ip-192-168-112-101:8250 -state paused
[2021/03/29 18:01:28.936 +08:00] [FATAL] [main.go:68] [“fail to execute command”] [command=update-pump] [error=“key /tidb-binlog/v1/pumps/ip-192-168-112-101:8250 in etcd not found”] [errorVerbose=“key /tidb-binlog/v1/pumps/ip-192-168-112-101:8250 in etcd not found\ngithub.com/pingcap/errors.NotFoundf\
\t/home/jenkins/agent/workspace/build_tidb_binlog_master/go/pkg/mod/github.com/pingcap/errors@v0.11.4/juju_adaptor.go:117\
github.com/pingcap/tidb-binlog/pkg/etcd.(*Client).Get\
\t/home/jenkins/agent/workspace/build_tidb_binlog_master/go/src/github.com/pingcap/tidb-binlog/pkg/etcd/etcd.go:100\ngithub.com/pingcap/tidb-binlog/pkg/node.(*EtcdRegistry).Node\
\t/home/jenkins/agent/workspace/build_tidb_binlog_master/go/src/github.com/pingcap/tidb-binlog/pkg/node/registry.go:58\ngithub.com/pingcap/tidb-binlog/binlogctl.UpdateNodeState\
\t/home/jenkins/agent/workspace/build_tidb_binlog_master/go/src/github.com/pingcap/tidb-binlog/binlogctl/nodes.go:69\
main.main\
\t/home/jenkins/agent/workspace/build_tidb_binlog_master/go/src/github.com/pingcap/tidb-binlog/cmd/binlogctl/main.go:52\
runtime.main\
\t/usr/local/go/src/runtime/proc.go:203\
runtime.goexit\
\t/usr/local/go/src/runtime/asm_amd64.s:1357”] [stack=“github.com/pingcap/log.Fatal\
\t/home/jenkins/agent/workspace/build_tidb_binlog_master/go/pkg/mod/github.com/pingcap/log@v0.0.0-20191012051959-b742a5d432e9/global.go:59\
main.main\
\t/home/jenkins/agent/workspace/build_tidb_binlog_master/go/src/github.com/pingcap/tidb-binlog/cmd/binlogctl/main.go:68\
runtime.main\
\t/usr/local/go/src/runtime/proc.go:203”]
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