[HIVE-6970] HCatInputFormat in hive-hcatalog-core 0.13 does not compatible with hadoop2

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.13.0
• Component/s: HCatalog
• Assignee: Unassigned
• Reporter: Chao Shi
• Created: 24/Apr/14 16:14
• Updated: 09/Oct/15 03:55

Description

I'm developing HCatalog support for Crunch (CRUNCH-340). Crunch support both hadoop 1 and 2, by specify profile -Phadoop-1 or -Phadoop-2. When I run my program with hadoop2, I got the following error. I think this was intended to be fixed by HIVE-4460.

Exception in thread "Thread-4" java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected
        at org.apache.hive.hcatalog.mapreduce.HCatBaseInputFormat.getSplits(HCatBaseInputFormat.java:102)
        at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:491)
        at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:508)
        at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:392)
        at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1268)
        at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1265)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
        at org.apache.hadoop.mapreduce.Job.submit(Job.java:1265)
        at org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchControlledJob.submit(CrunchControlledJob.java:331)
        at org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchJobControl.startReadyJobs(CrunchJobControl.java:201)
        at org.apache.crunch.hadoop.mapreduce.lib.jobcontrol.CrunchJobControl.pollJobStatusAndStartNewOnes(CrunchJobControl.java:235)
        at org.apache.crunch.impl.mr.exec.MRExecutor.monitorLoop(MRExecutor.java:112)
        at org.apache.crunch.impl.mr.exec.MRExecutor.access$000(MRExecutor.java:55)
        at org.apache.crunch.impl.mr.exec.MRExecutor$1.run(MRExecutor.java:83)
        at java.lang.Thread.run(Thread.java:744)

Issue Links

• Blocked: HIVE-4997 HCatalog doesn't allow multiple input tables
• blocks: CRUNCH-340 Create HCatSource and HCatTarget
• links to: review board