Help Center/ MapReduce Service/ Component Operation Guide (LTS)/ Using Spark/Spark2x/ Spark O&M Management/ Configuring the Number of Lost Executors Displayed on the Web UI

Updated on 2024-12-13 GMT+08:00

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Configuring the Number of Lost Executors Displayed on the Web UI

Scenarios

On the Spark web UI, the Executor page can display information about lost executors. Executors of JDBCServer long tasks are dynamically recycled. Therefore, the number of displayed lost executors must be configured to fit the Executor page.

Configuration Description

Configure the following parameters in the spark-defaults.conf file of the Spark client.

**Table 1** Parameter description
Parameter	Description	Default Value
spark.ui.retainedDeadExecutors	Specifies the maximum number of lost executors displayed on the Spark web UI.	100

Parent topic: Spark O&M Management

Previous topic: Viewing Container Logs on the Web UI

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