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From "Imran Rashid (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SPARK-20391) Properly rename the memory related fields in ExecutorSummary REST API
Date Wed, 26 Apr 2017 14:03:04 GMT

     [ https://issues.apache.org/jira/browse/SPARK-20391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Imran Rashid resolved SPARK-20391.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 2.2.0

Issue resolved by pull request 17700
[https://github.com/apache/spark/pull/17700]

> Properly rename the memory related fields in ExecutorSummary REST API
> ---------------------------------------------------------------------
>
>                 Key: SPARK-20391
>                 URL: https://issues.apache.org/jira/browse/SPARK-20391
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.2.0
>            Reporter: Saisai Shao
>            Priority: Blocker
>             Fix For: 2.2.0
>
>
> Currently in Spark we could get executor summary through REST API {{/api/v1/applications/<app-id>/executors}}.
The format of executor summary is:
> {code}
> class ExecutorSummary private[spark](
>     val id: String,
>     val hostPort: String,
>     val isActive: Boolean,
>     val rddBlocks: Int,
>     val memoryUsed: Long,
>     val diskUsed: Long,
>     val totalCores: Int,
>     val maxTasks: Int,
>     val activeTasks: Int,
>     val failedTasks: Int,
>     val completedTasks: Int,
>     val totalTasks: Int,
>     val totalDuration: Long,
>     val totalGCTime: Long,
>     val totalInputBytes: Long,
>     val totalShuffleRead: Long,
>     val totalShuffleWrite: Long,
>     val isBlacklisted: Boolean,
>     val maxMemory: Long,
>     val executorLogs: Map[String, String],
>     val onHeapMemoryUsed: Option[Long],
>     val offHeapMemoryUsed: Option[Long],
>     val maxOnHeapMemory: Option[Long],
>     val maxOffHeapMemory: Option[Long])
> {code}
> Here are 6 memory related fields: {{memoryUsed}}, {{maxMemory}}, {{onHeapMemoryUsed}},
{{offHeapMemoryUsed}}, {{maxOnHeapMemory}}, {{maxOffHeapMemory}}.
> These all 6 fields reflects the *storage* memory usage in Spark, but from the name of
this 6 fields, user doesn't really know it is referring to *storage* memory or the total memory
(storage memory + execution memory). This will be misleading.
> So I think we should properly rename these fields to reflect their real meanings. Or
we should will document it.



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