StackOverflow in ExplicitColumnTracker when row has many columns
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                 Key: HBASE-2259
                 URL: https://issues.apache.org/jira/browse/HBASE-2259
             Project: Hadoop HBase
          Issue Type: Bug
    Affects Versions: 0.20.3
            Reporter: Erik Rozendaal


When doing a "get" on a row with many columns and where the "get" also contains 
many columns to get a stack overflow is thrown in the ExplicitColumnTracker:

java.io.IOException: java.io.IOException: java.lang.StackOverflowError
        at 
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:872)
        at 
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:862)
        at 
org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1733)
        at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657)
        at 
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
Caused by: java.lang.StackOverflowError
        at 
org.apache.hadoop.hbase.regionserver.ExplicitColumnTracker.checkColumn(ExplicitColumnTracker.java:122)
        at 
org.apache.hadoop.hbase.regionserver.ExplicitColumnTracker.checkColumn(ExplicitColumnTracker.java:123)
        at 
org.apache.hadoop.hbase.regionserver.ExplicitColumnTracker.checkColumn(ExplicitColumnTracker.java:123)
[... repeats many times ...]
        at 
org.apache.hadoop.hbase.regionserver.ExplicitColumnTracker.checkColumn(ExplicitColumnTracker.java:123)
        at 
org.apache.hadoop.hbase.regionserver.ExplicitColumnTracker.checkColumn(ExplicitColumnTracker.java:123)
        at 
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:1048)
        at org.apache.hadoop.hbase.client.HTable.get(HTable.java:417)


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