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John George commented on HADOOP-8265: ------------------------------------- org.apache.hadoop.mapreduce.v2.app.MRAppMaster: Error starting MRAppMaster org.apache.hadoop.fs.viewfs.NotInMountpointException: getDefaultBlockSize on empty path is invalid at org.apache.hadoop.fs.viewfs.ViewFileSystem.getDefaultBlockSize(ViewFileSystem.java:477) at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.makeUberDecision(JobImpl.java:826) at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.access$2600(JobImpl.java:113) at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$InitTransition.transition(JobImpl.java:990) at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl$InitTransition.transition(JobImpl.java:933) at org.apache.hadoop.yarn.state.StateMachineFactory$MultipleInternalArc.doTransition(StateMachineFactory.java:380) at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:298) at org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:43) at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:443) at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:663) at org.apache.hadoop.mapreduce.v2.app.job.impl.JobImpl.handle(JobImpl.java:112) at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$JobEventDispatcher.handle(MRAppMaster.java:865) at org.apache.hadoop.mapreduce.v2.app.MRAppMaster.start(MRAppMaster.java:815) at org.apache.hadoop.mapreduce.v2.app.MRAppMaster$1.run(MRAppMaster.java:1031) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) > MR over viewfs is broken > ------------------------ > > Key: HADOOP-8265 > URL: https://issues.apache.org/jira/browse/HADOOP-8265 > Project: Hadoop Common > Issue Type: Bug > Reporter: John George > Assignee: John George > > After the changes in HADOOP-8014 went in, MR programs using viewfs broke. > This is because, viewfs now expects getDefaultBlockSize, > getDefaultReplication, and getServerDefaults to pass in a {{path}} as an > argument. In the existing MR source, these are called with no arguments. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira