TiDB Binlog Drainer Configurations on Kubernetes

This document introduces the configuration parameters for a TiDB Binlog drainer on Kubernetes.

Configuration parameters

The following table contains all configuration parameters available for thetidb-drainerchart. Refer toUse Helmto learn how to configure these parameters.

Parameter	Description	Default Value
`timezone`	Timezone configuration	`UTC`
`drainerName`	The name of`Statefulset`	`""`
`clusterName`	The name of the source TiDB cluster	`demo`
`clusterVersion`	The version of the source TiDB cluster	`v3.0.1`
`baseImage`	的基本形象TiDB Binlog	`pingcap/tidb-binlog`
`imagePullPolicy`	The pulling policy of the image	`IfNotPresent`
`logLevel`	The log level of the drainer process	`info`
`storageClassName`	`storageClass`used by the drainer.`storageClassName`refers to a type of storage provided by the Kubernetes cluster, which might map to a level of service quality, a backup policy, or to any policy determined by the cluster administrator. Detailed reference:storage-classes	`local-storage`
`storage`	The storage limit of the drainer Pod. Note that you should set a larger size if`db-type`is set to`pb`	`10Gi`
`disableDetect`	Determines whether to disable casualty detection	`false`
`initialCommitTs`	Used to initialize a checkpoint if the drainer does not have one. The value is a string type, such as`"424364429251444742"`	`"-1"`
`tlsCluster.enabled`	Whether or not to enable TLS between clusters	`false`
`config`	The configuration file passed to the drainer. Detailed reference:drainer.toml	(see below)
`resources`	The resource limits and requests of the drainer Pod	`{}`
`nodeSelector`	Ensures that the drainer Pod is only scheduled to the node with the specific key-value pair as the label. Detailed reference:`nodeselector`	`{}`
`tolerations`	Applies to drainer Pods, allowing the Pods to be scheduled to the nodes with specified taints. Detailed reference:taint-and-toleration	`{}`
`affinity`	Defines scheduling policies and preferences of the drainer Pod. Detailed reference:affinity-and-anti-affinity	`{}`

The default value ofconfigis:


              
               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"

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