[HIVE-13128] NullScan fails on a secure setup

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.1.0
• Fix Version/s: 2.1.0
• Target Version/s: 2.1.0
• Assignee: Siddharth Seth
• Reporter: Siddharth Seth
• Created: 23/Feb/16 21:30
• Updated: 21/Jun/16 15:43
• Resolved: 24/Feb/16 18:32

Description

Nullscan provides uris of the form nullscan://null/ - which are added to the list of FileSystems for which Tez should obtain tokens.

2016-02-19T02:48:04,481 ERROR [main]: exec.Task (TezTask.java:execute(219)) - Failed to execute tez graph.
java.lang.IllegalArgumentException: java.net.UnknownHostException: null
  at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:406) ~[hadoop-common-2.7.1.2.3.5.1-26.jar:?]
  at org.apache.hadoop.security.SecurityUtil.buildDTServiceName(SecurityUtil.java:291) ~[hadoop-common-2.7.1.2.3.5.1-26.jar:?]
  at org.apache.hadoop.fs.FileSystem.getCanonicalServiceName(FileSystem.java:302) ~[hadoop-common-2.7.1.2.3.5.1-26.jar:?]
  at org.apache.hadoop.fs.FileSystem.collectDelegationTokens(FileSystem.java:524) ~[hadoop-common-2.7.1.2.3.5.1-26.jar:?]
  at org.apache.hadoop.fs.FileSystem.addDelegationTokens(FileSystem.java:508) ~[hadoop-common-2.7.1.2.3.5.1-26.jar:?]
  at org.apache.tez.common.security.TokenCache.obtainTokensForFileSystemsInternal(TokenCache.java:107) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.tez.common.security.TokenCache.obtainTokensForFileSystemsInternal(TokenCache.java:86) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.tez.common.security.TokenCache.obtainTokensForFileSystems(TokenCache.java:76) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.tez.client.TezClientUtils.addFileSystemCredentialsFromURIs(TezClientUtils.java:338) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.tez.client.TezClientUtils.setupDAGCredentials(TezClientUtils.java:369) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.tez.client.TezClientUtils.prepareAndCreateDAGPlan(TezClientUtils.java:704) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.tez.client.TezClient.submitDAGSession(TezClient.java:522) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.tez.client.TezClient.submitDAG(TezClient.java:468) ~[tez-api-0.8.2.2.3.5.1-26.jar:0.8.2.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.exec.tez.TezTask.submit(TezTask.java:466) ~[hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.exec.tez.TezTask.execute(TezTask.java:187) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:158) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:89) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1858) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1600) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1373) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1196) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1184) [hive-exec-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:228) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:180) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:395) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:331) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.processReader(CliDriver.java:428) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.processFile(CliDriver.java:444) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:744) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:711) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:640) [hive-cli-2.0.0.2.3.5.1-26.jar:2.0.0.2.3.5.1-26]
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_45]
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_45]
  at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]
  at org.apache.hadoop.util.RunJar.run(RunJar.java:221) [hadoop-common-2.7.1.2.3.5.1-26.jar:?]
  at org.apache.hadoop.util.RunJar.main(RunJar.java:136) [hadoop-common-2.7.1.2.3.5.1-26.jar:?]
Caused by: java.net.UnknownHostException: null
  ... 37 more

This is while trying to obtain tokens for

2016-02-23T02:49:41,782 DEBUG [main]: tez.DagUtils (DagUtils.java:addCredentials(164)) - Marking URI as needing credentials: nullscan://null/default.studenttab10k/part_