Configuring the Number of Lost Executors Displayed in WebUI

Scenario

In Spark WebUI, the Executor page can display information about Lost Executor. Executors are dynamically recycled. If the JDBCServer tasks are large, there may be too many lost executors displayed in WebUI. Therefore, the number of displayed lost executors can be configured.

Procedure

Configure the following parameter in the spark-defaults.conf file on Spark client.

**Table 1** Parameter description
Parameter	Description	Default Value
spark.ui.retainedDeadExecutors	The maximum number of Lost Executors displayed in Spark WebUI.	100

Parent topic: Spark O&M Management

Previous topic: Configuring Spark Event Log Rollback

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