spark技术分享ApplicationCacheOperations
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package org.apache.spark.deploy.history trait ApplicationCacheOperations { // only required methods that have no implementation // the others follow def getAppUI(appId: String, attemptId: Option[String]): Option[LoadedAppUI] def attachSparkUI( appId: String, attemptId: Option[String], ui: SparkUI, completed: Boolean): Unit def detachSparkUI(appId: String, attemptId: Option[String], ui: SparkUI): Unit } |
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Note
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ApplicationCacheOperations is a private[history] contract.
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SparkUI (the UI of a Spark application) Used exclusively when |
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Note
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HistoryServer is the one and only known implementation of ApplicationCacheOperations contract in Apache Spark. |
