Question

我正在试图找出我的MR工作失败的原因。我有一个疑问是在yarn resourceman的日志中发出警告：

2015-08-14 12:00:45,610 INFO SecurityLogger.org.apache.hadoop.ipc.Server: Auth successful for testing (auth:SIMPLE)
2015-08-14 12:00:45,624 WARN org.apache.hadoop.security.ShellBasedUnixGroupsMapping: got exception trying to get groups for user testing: id: testing: No such user

2015-08-14 12:00:45,624 WARN org.apache.hadoop.security.UserGroupInformation: No groups available for user testing
2015-08-14 12:00:45,624 INFO SecurityLogger.org.apache.hadoop.security.authorize.ServiceAuthorizationManager: Authorization successful for testing (auth:TOKEN) for protocol=interface org.apache.hadoop.yarn.s
erver.nodemanager.api.LocalizationProtocolPB

我没有在任何地方配置用户'测试'。此外，我无法在yarn，mapreduce或其他hadoop子系统的默认配置中找到它。

有谁知道这个用户来自哪里？

Answer 1

此错误可能与HADOOP-12413（https://issues.apache.org/jira/browse/HADOOP-12413）有关。您可以在日志中看到“用户测试”和“用户appattempt_”。

尼克

hadoop yarn：未知的用户和组

1 个答案: