Baohe Zhang created SPARK-33906:
-----------------------------------
Summary: SPARK UI Executors page stuck when
ExecutorSummary.peakMemoryMetrics is unset
Key: SPARK-33906
URL: https://issues.apache.org/jira/browse/SPARK-33906
Project: Spark
Issue Type: Bug
Components: Web UI
Affects Versions: 3.2.0
Reporter: Baohe Zhang
How to reproduce it?
In mac OS standalone mode, open a spark-shell and run
$SPARK_HOME/bin/spark-shell --master spark://localhost:7077
{code:scala}
val x = sc.makeRDD(1 to 100000, 5)
x.count()
{code}
Then open the app UI in the browser, and click the Executors page, will get
stuck at this page:
!image-2020-12-24-14-12-22-983.png!
Also the return JSON of REST API endpoint
http://localhost:4040/api/v1/applications/app-20201224134418-0003/executors
miss "peakMemoryMetrics" for executors.
{noformat}
[ {
"id" : "driver",
"hostPort" : "192.168.1.241:50042",
"isActive" : true,
"rddBlocks" : 0,
"memoryUsed" : 0,
"diskUsed" : 0,
"totalCores" : 0,
"maxTasks" : 0,
"activeTasks" : 0,
"failedTasks" : 0,
"completedTasks" : 0,
"totalTasks" : 0,
"totalDuration" : 0,
"totalGCTime" : 0,
"totalInputBytes" : 0,
"totalShuffleRead" : 0,
"totalShuffleWrite" : 0,
"isBlacklisted" : false,
"maxMemory" : 455501414,
"addTime" : "2020-12-24T19:44:18.033GMT",
"executorLogs" : { },
"memoryMetrics" : {
"usedOnHeapStorageMemory" : 0,
"usedOffHeapStorageMemory" : 0,
"totalOnHeapStorageMemory" : 455501414,
"totalOffHeapStorageMemory" : 0
},
"blacklistedInStages" : [ ],
"peakMemoryMetrics" : {
"JVMHeapMemory" : 135021152,
"JVMOffHeapMemory" : 149558576,
"OnHeapExecutionMemory" : 0,
"OffHeapExecutionMemory" : 0,
"OnHeapStorageMemory" : 3301,
"OffHeapStorageMemory" : 0,
"OnHeapUnifiedMemory" : 3301,
"OffHeapUnifiedMemory" : 0,
"DirectPoolMemory" : 67963178,
"MappedPoolMemory" : 0,
"ProcessTreeJVMVMemory" : 0,
"ProcessTreeJVMRSSMemory" : 0,
"ProcessTreePythonVMemory" : 0,
"ProcessTreePythonRSSMemory" : 0,
"ProcessTreeOtherVMemory" : 0,
"ProcessTreeOtherRSSMemory" : 0,
"MinorGCCount" : 15,
"MinorGCTime" : 101,
"MajorGCCount" : 0,
"MajorGCTime" : 0
},
"attributes" : { },
"resources" : { },
"resourceProfileId" : 0,
"isExcluded" : false,
"excludedInStages" : [ ]
}, {
"id" : "0",
"hostPort" : "192.168.1.241:50054",
"isActive" : true,
"rddBlocks" : 0,
"memoryUsed" : 0,
"diskUsed" : 0,
"totalCores" : 12,
"maxTasks" : 12,
"activeTasks" : 0,
"failedTasks" : 0,
"completedTasks" : 5,
"totalTasks" : 5,
"totalDuration" : 2107,
"totalGCTime" : 25,
"totalInputBytes" : 0,
"totalShuffleRead" : 0,
"totalShuffleWrite" : 0,
"isBlacklisted" : false,
"maxMemory" : 455501414,
"addTime" : "2020-12-24T19:44:20.335GMT",
"executorLogs" : {
"stdout" :
"http://192.168.1.241:8081/logPage/?appId=app-20201224134418-0003&executorId=0&logType=stdout";,
"stderr" :
"http://192.168.1.241:8081/logPage/?appId=app-20201224134418-0003&executorId=0&logType=stderr";
},
"memoryMetrics" : {
"usedOnHeapStorageMemory" : 0,
"usedOffHeapStorageMemory" : 0,
"totalOnHeapStorageMemory" : 455501414,
"totalOffHeapStorageMemory" : 0
},
"blacklistedInStages" : [ ],
"attributes" : { },
"resources" : { },
"resourceProfileId" : 0,
"isExcluded" : false,
"excludedInStages" : [ ]
} ]
{noformat}
I debugged it and observed that ExecutorMetricsPoller
.getExecutorUpdates returns an empty map, which causes peakExecutorMetrics to
None in
https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/status/LiveEntity.scala#L345.
The possible reason for returning the empty map is that the stage completion
time is shorter than the heartbeat interval, so the stage entry in stageTCMP
has already been removed before the reportHeartbeat is called.
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