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部署binlog需要安装两个组件，pump和drainer

部署pump需要修改tidbcluster的yaml文件，添加如下内容（参考文档）

  pump:
    #baseImage: pingcap/tidb-binlog
    baseImage: harbor.uenpay.com/base/tidb-binlog
    version: v8.1.0
    replicas: 3
    storageClassName: cephrbd-sc
    requests:
      storage: 30Gi
    schedulerName: default-scheduler
    config: |
      addr = "0.0.0.0:8250"
      gc = 7
      heartbeat-interval = 2

部署drainer官方推荐的用helm方式安装，我这里将helm文件模板化下来做了一定的修改

一键安装部署：

kubectl apply -f https://zhengyu1992.cn/file/deploy/db/tidb/6.tidb-drainer-file.yaml

配置文件解读

  config-file: |-
    detect-interval = 10
    compressor = ""
    [syncer]
    worker-count = 16
    disable-dispatch = false
    ignore-schemas = "INFORMATION_SCHEMA,PERFORMANCE_SCHEMA,mysql"
    safe-mode = false
    txn-batch = 20
    db-type = "file"
    [syncer.to]
    dir = "/data/pb"

需要注意的：

#这里针对statefulset类型的yaml设置的service名称，关系到下面pod之间调用 
serviceName: tidb-cluster-drainer
...
	domain=`echo ${HOSTNAME}`.tidb-cluster-drainer
...

#这里设置的pd的service名称需要对应修改
-pd-urls=http://tidb-cluster-pd:2379
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