为提高效率，提问时请提供以下信息，问题描述清晰可优先响应。
- 【TiDB 版本】：3.0.4
- 【问题描述】：3tidb 3tikv公用ssd的机器，一台8核32G，500G硬盘机器部署pump，部署过程没有异常，滚动启动tidb-server后，tikv cpu使用陡然增加，内存有一台机器的陡降，中间有内存不够的错误
现在想去掉pump组件，offline-pump or pause-pump 都报错：
[2019/11/25 18:14:45.068 +08:00] [FATAL] [main.go:68] [“fail to execute command”] [command=update-pump] [error=“key /tidb-binlog/v1/pumps/10.9.48.230:8250 in etcd not found”] [errorVerbose=“key /tidb-binlog/v1/pumps/10.9.48.230:8250 in etcd not found
github.com/pingcap/errors.NotFoundf
/home/jenkins/workspace/release_tidb_3.0/go/pkg/mod/github.com/pingcap/errors@v0.11.4/juju_adaptor.go:117
github.com/pingcap/tidb-binlog/pkg/etcd.(*Client).Get
/home/jenkins/workspace/release_tidb_3.0/go/src/github.com/pingcap/tidb-binlog/pkg/etcd/etcd.go:100
github.com/pingcap/tidb-binlog/pkg/node.(*EtcdRegistry).Node
/home/jenkins/workspace/release_tidb_3.0/go/src/github.com/pingcap/tidb-binlog/pkg/node/registry.go:58
github.com/pingcap/tidb-binlog/binlogctl.UpdateNodeState
/home/jenkins/workspace/release_tidb_3.0/go/src/github.com/pingcap/tidb-binlog/binlogctl/nodes.go:66
main.main
/home/jenkins/workspace/release_tidb_3.0/go/src/github.com/pingcap/tidb-binlog/cmd/binlogctl/main.go:52
runtime.main
/usr/local/go/src/runtime/proc.go:200
runtime.goexit
/usr/local/go/src/runtime/asm_amd64.s:1337”] [stack=“github.com/pingcap/log.Fatal
/home/jenkins/workspace/release_tidb_3.0/go/pkg/mod/github.com/pingcap/log@v0.0.0-20190307075452-bd41d9273596/global.go:59
main.main
/home/jenkins/workspace/release_tidb_3.0/go/src/github.com/pingcap/tidb-binlog/cmd/binlogctl/main.go:68
runtime.main
/usr/local/go/src/runtime/proc.go:200”]
想问下服务异常的定位方向，以及去掉pump组件的方式。