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https://issues.apache.org/jira/browse/SPARK-27802?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16875945#comment-16875945
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liupengcheng edited comment on SPARK-27802 at 7/2/19 6:23 AM:
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[~shahid] yes, but I checked master branch, I found that these logic was
removed in 3.0.0 and replaced with some javascript scripts, so I'am not sure
whether we can fix it only in versions prior to 3.0.0? I haven't looked into
the code of 3.0.0, so I am not sure whether this issue still exists, that's why
I haven't put an PR for it.
you can follow these steps to reproduce the issue:
# set spark.ui.retainedDeadExecutors=0 and set spark.ui.retainedStages=1000
# set spark.dynamicAllocation.enabled=true
# run a spark app, and wait for complete, and let executors idle.
# check the stage UI.
was (Author: liupengcheng):
[~shahid] yes, but I checked master branch, I found that these logic was
removed in 3.0.0, so I'am not sure whether we can fix it only in 2.3? that's
why I haven't put an PR for it.
you can follow these steps to reproduce the issue:
# set spark.ui.retainedDeadExecutors=0 and set spark.ui.retainedStages=1000
# set spark.dynamicAllocation.enabled=true
# run a spark app, and wait for complete, and let executors idle.
# check the stage UI.
> SparkUI throws NoSuchElementException when inconsistency appears between
> `ExecutorStageSummaryWrapper`s and `ExecutorSummaryWrapper`s
> -------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-27802
> URL: https://issues.apache.org/jira/browse/SPARK-27802
> Project: Spark
> Issue Type: Bug
> Components: Web UI
> Affects Versions: 2.3.2
> Reporter: liupengcheng
> Priority: Major
>
> Recently, we hit this issue when testing spark2.3. It report the following
> error messages when clicking on the stage UI link.
> We add more logs to print the executorId(here is 10) to debug, and finally
> find out that it's caused by the inconsistency between the list of
> `ExecutorStageSummaryWrapper` and the `ExecutorSummaryWrapper` in the
> KVStore. The number of deadExecutors may exceeded threshold and being removed
> from list of `ExecutorSummaryWrapper`, however, it may still be kept in the
> list of `ExecutorStageSummaryWrapper` in the store.
> {code:java}
> HTTP ERROR 500
> Problem accessing /stages/stage/. Reason:
> Server Error
> Caused by:
> java.util.NoSuchElementException: 10
> at
> org.apache.spark.util.kvstore.InMemoryStore.read(InMemoryStore.java:83)
> at
> org.apache.spark.status.ElementTrackingStore.read(ElementTrackingStore.scala:95)
> at
> org.apache.spark.status.AppStatusStore.executorSummary(AppStatusStore.scala:70)
> at
> org.apache.spark.ui.jobs.ExecutorTable$$anonfun$createExecutorTable$2.apply(ExecutorTable.scala:99)
> at
> org.apache.spark.ui.jobs.ExecutorTable$$anonfun$createExecutorTable$2.apply(ExecutorTable.scala:92)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
> at
> scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
> at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
> at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
> at scala.collection.AbstractTraversable.map(Traversable.scala:104)
> at
> org.apache.spark.ui.jobs.ExecutorTable.createExecutorTable(ExecutorTable.scala:92)
> at
> org.apache.spark.ui.jobs.ExecutorTable.toNodeSeq(ExecutorTable.scala:75)
> at org.apache.spark.ui.jobs.StagePage.render(StagePage.scala:478)
> at org.apache.spark.ui.WebUI$$anonfun$2.apply(WebUI.scala:82)
> at org.apache.spark.ui.WebUI$$anonfun$2.apply(WebUI.scala:82)
> at org.apache.spark.ui.JettyUtils$$anon$3.doGet(JettyUtils.scala:90)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> at
> org.spark_project.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
> at
> org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1772)
> at
> org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter.doFilter(AmIpFilter.java:166)
> at
> org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759)
> at
> org.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582)
> at
> org.spark_project.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
> at
> org.spark_project.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512)
> at
> org.spark_project.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112)
> at
> org.spark_project.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.spark_project.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:493)
> at
> org.spark_project.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213)
> at
> org.spark_project.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134)
> at org.spark_project.jetty.server.Server.handle(Server.java:539)
> at
> org.spark_project.jetty.server.HttpChannel.handle(HttpChannel.java:333)
> at
> org.spark_project.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
> at
> org.spark_project.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283)
> at
> org.spark_project.jetty.io.FillInterest.fillable(FillInterest.java:108)
> at
> org.spark_project.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
> at
> org.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303)
> at
> org.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148)
> at
> org.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136)
> at
> org.spark_project.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)
> at
> org.spark_project.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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