[jira] [Created] (KYLIN-830) Cube merge failed after migrating from v0.6 to v0.7

["Shaofeng SHI (JIRA)" <ji...@apache.org>]

Shaofeng SHI created KYLIN-830:
----------------------------------

             Summary: Cube merge failed after migrating from v0.6 to v0.7
                 Key: KYLIN-830
                 URL: https://issues.apache.org/jira/browse/KYLIN-830
             Project: Kylin
          Issue Type: Bug
    Affects Versions: v0.7.1
            Reporter: Shaofeng SHI
            Assignee: Shaofeng SHI


Migrate a v0.6 cube to v0.7, build a new segment, and then merge it with old segment, got the error in the first step:

{code}
java.lang.IllegalArgumentException: Merging dictionaries are not structurally equal(regardless of signature).
	at org.apache.kylin.dict.DictionaryManager.mergeDictionary(DictionaryManager.java:127)
	at org.apache.kylin.job.cube.MergeDictionaryStep.mergeDictionaries(MergeDictionaryStep.java:141)
	at org.apache.kylin.job.cube.MergeDictionaryStep.makeDictForNewSegment(MergeDictionaryStep.java:131)
	at org.apache.kylin.job.cube.MergeDictionaryStep.doWork(MergeDictionaryStep.java:68)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:107)
	at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:50)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:107)
	at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:132)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
{code}



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