Help Center> MapReduce Service> Component Operation Guide> Using Spark2x> Basic Operation> Scenario-Specific Configuration> Configuring the Number of Lost Executors Displayed in WebUI
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.
| Parameter | Description | Default Value |
|---|---|---|
| spark.ui.retainedDeadExecutors | The maximum number of Lost Executors displayed in Spark WebUI. | 100 |
Parent topic: Scenario-Specific Configuration
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