[SPARK-12399] Display correct error message when accessing REST API with an unknown app Id

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.5.2
• Fix Version/s: 1.6.1, 2.0.0
• Component/s: Web UI
• Assignee: Carson Wang
• Reporter: Carson Wang
• Created: 17/Dec/15 07:42
• Updated: 30/Dec/15 21:50
• Resolved: 30/Dec/15 21:50

Description

I got an exception when accessing the below REST API with an unknown application Id.
http://<server-url>:18080/api/v1/applications/xxx/jobs

Instead of an exception, I expect an error message "no such app: xxx" which is a similar error message when I access "/api/v1/applications/xxx"

org.spark-project.guava.util.concurrent.UncheckedExecutionException: java.util.NoSuchElementException: no app with key xxx
	at org.spark-project.guava.cache.LocalCache$Segment.get(LocalCache.java:2263)
	at org.spark-project.guava.cache.LocalCache.get(LocalCache.java:4000)
	at org.spark-project.guava.cache.LocalCache.getOrLoad(LocalCache.java:4004)
	at org.spark-project.guava.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4874)
	at org.apache.spark.deploy.history.HistoryServer.getSparkUI(HistoryServer.scala:116)
	at org.apache.spark.status.api.v1.UIRoot$class.withSparkUI(ApiRootResource.scala:226)
	at org.apache.spark.deploy.history.HistoryServer.withSparkUI(HistoryServer.scala:46)
	at org.apache.spark.status.api.v1.ApiRootResource.getJobs(ApiRootResource.scala:66)

Issue Links

• links to: [Github] Pull Request #10352 (carsonwang)