[jira] [Created] (TRAFODION-1886) Region Server fails to come up at times with a NULL pointer exception in org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionObserver class

["Selvaganesan Govindarajan (JIRA)" <ji...@apache.org>]

Selvaganesan Govindarajan created TRAFODION-1886:
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             Summary: Region Server fails to come up at times with a NULL pointer exception in org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionObserver class
                 Key: TRAFODION-1886
                 URL: https://issues.apache.org/jira/browse/TRAFODION-1886
             Project: Apache Trafodion
          Issue Type: Bug
          Components: dtm
    Affects Versions: 1.3-incubating
            Reporter: Selvaganesan Govindarajan


A failed Trafodion installation can lead to the hbase:meta table staying in the FAILED_OPEN state because the region server failed to start with the following exception

The coprocessor org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionObserver threw java.lang.NullPointerException
java.lang.NullPointerException
        at org.apache.hadoop.hbase.coprocessor.transactional.SplitBalanceHelper.zkCleanup(SplitBalanceHelper.java:318)
        at org.apache.hadoop.hbase.coprocessor.transactional.SplitBalanceHelper.<init>(SplitBalanceHelper.java:87)
        at org.apache.hadoop.hbase.coprocessor.transactional.TrxRegionObserver.start(TrxRegionObserver.java:318)
        at org.apache.hadoop.hbase.coprocessor.CoprocessorHost$Environment.startup(CoprocessorHost.java:411)
        at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.loadInstance(CoprocessorHost.java:253)
        at org.apache.hadoop.hbase.coprocessor.CoprocessorHost.loadSystemCoprocessors(CoprocessorHost.java:156)
        at org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.<init>(RegionCoprocessorHost.java:231)
        at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:723)
        at org.apache.hadoop.hbase.regionserver.HRegion.<init>(HRegion.java:631)
        at org.apache.hadoop.hbase.regionserver.transactional.TransactionalRegion.<init>(TransactionalRegion.java:71)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
        at org.apache.hadoop.hbase.regionserver.HRegion.newHRegion(HRegion.java:5893)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6203)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6175)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6131)
        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:6082)
        at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:362)
        at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:129)
        at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:128)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)




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