[
https://issues.apache.org/jira/browse/SPARK-30313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17000493#comment-17000493
]
Marcelo Masiero Vanzin commented on SPARK-30313:
------------------------------------------------
>From the logs (in case jenkins cleans the up):
{noformat}
19/12/19 13:48:39.160 dispatcher-event-loop-4 INFO Worker: WorkerWebUI is
available at http://localhost:8080/proxy/worker-20191219
134839-localhost-36054
19/12/19 13:48:39.296 WorkerUI-52072 WARN JettyUtils: GET /json/ failed:
java.lang.NullPointerException
java.lang.NullPointerException
at
org.apache.spark.deploy.worker.ui.WorkerPage.renderJson(WorkerPage.scala:39)
at org.apache.spark.ui.WebUI.$anonfun$attachPage$2(WebUI.scala:91)
at org.apache.spark.ui.JettyUtils$$anon$1.doGet(JettyUtils.scala:80)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at
org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1623)
at
org.apache.spark.ui.HttpSecurityFilter.doFilter(HttpSecurityFilter.scala:95)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
at
org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
at
org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
at
org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
at
org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
at
org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)
at
org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
at
org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:753)
at
org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
at
org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.Server.handle(Server.java:505)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
{noformat}
> Flaky test: MasterSuite.master/worker web ui available with reverseProxy
> ------------------------------------------------------------------------
>
> Key: SPARK-30313
> URL: https://issues.apache.org/jira/browse/SPARK-30313
> Project: Spark
> Issue Type: Bug
> Components: Tests
> Affects Versions: 3.0.0
> Reporter: Marcelo Masiero Vanzin
> Priority: Major
>
> Saw this test fail a few times on PRs. e.g.:
> [https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/115583/testReport/org.apache.spark.deploy.master/MasterSuite/master_worker_web_ui_available_with_reverseProxy/]
>
> {noformat}
> Error Message
> org.scalatest.exceptions.TestFailedDueToTimeoutException: The code passed to
> eventually never returned normally. Attempted 43 times over
> 5.0642265779999995 seconds. Last failure message: Server returned HTTP
> response code: 500 for URL:
> http://localhost:45395/proxy/worker-20191219134839-localhost-36054/json/.
> Stacktrace
> sbt.ForkMain$ForkError:
> org.scalatest.exceptions.TestFailedDueToTimeoutException: The code passed to
> eventually never returned normally. Attempted 43 times over
> 5.0642265779999995 seconds. Last failure message: Server returned HTTP
> response code: 500 for URL:
> http://localhost:45395/proxy/worker-20191219134839-localhost-36054/json/.
> at
> org.scalatest.concurrent.Eventually.tryTryAgain$1(Eventually.scala:432)
> at org.scalatest.concurrent.Eventually.eventually(Eventually.scala:439)
> at org.scalatest.concurrent.Eventually.eventually$(Eventually.scala:391)
> at
> org.apache.spark.deploy.master.MasterSuite.eventually(MasterSuite.scala:111)
> at org.scalatest.concurrent.Eventually.eventually(Eventually.scala:308)
> at org.scalatest.concurrent.Eventually.eventually$(Eventually.scala:307)
> at
> org.apache.spark.deploy.master.MasterSuite.eventually(MasterSuite.scala:111)
> at
> org.apache.spark.deploy.master.MasterSuite.$anonfun$new$14(MasterSuite.scala:318)
> at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
> ---
> Caused by: sbt.ForkMain$ForkError: java.io.IOException: Server returned HTTP
> response code: 500 for URL:
> http://localhost:45395/proxy/worker-20191219134839-localhost-36054/json/
> at
> sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1894)
> at
> sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
> at java.net.URL.openStream(URL.java:1045)
> at scala.io.Source$.fromURL(Source.scala:144)
> at scala.io.Source$.fromURL(Source.scala:134)
> {noformat}
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