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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-11041) HBaseTestingUtil.createMultiRegions deals incorrectly with missing column family
Date Sun, 20 Apr 2014 16:58:14 GMT
Lars Hofhansl created HBASE-11041:
-------------------------------------

             Summary: HBaseTestingUtil.createMultiRegions deals incorrectly with missing column
family
                 Key: HBASE-11041
                 URL: https://issues.apache.org/jira/browse/HBASE-11041
             Project: HBase
          Issue Type: Bug
            Reporter: Lars Hofhansl
             Fix For: 0.99.0, 0.94.19, 0.98.2, 0.96.3


Just found a test failing like this:
{code}
Error Message

HTableDescriptor is read-only

Stacktrace

java.lang.UnsupportedOperationException: HTableDescriptor is read-only
	at org.apache.hadoop.hbase.client.UnmodifyableHTableDescriptor.addFamily(UnmodifyableHTableDescriptor.java:64)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createMultiRegions(HBaseTestingUtility.java:1302)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createMultiRegions(HBaseTestingUtility.java:1291)
	at org.apache.hadoop.hbase.HBaseTestingUtility.createMultiRegions(HBaseTestingUtility.java:1286)
	at org.apache.hadoop.hbase.master.TestDistributedLogSplitting.installTable(TestDistributedLogSplitting.java:485)
	at org.apache.hadoop.hbase.master.TestDistributedLogSplitting.testMasterStartsUpWithLogSplittingWork(TestDistributedLogSplitting.java:282)
{code}

The code that causes this looks like this:
{code}
    HTableDescriptor htd = table.getTableDescriptor();
    if(!htd.hasFamily(columnFamily)) {
      HColumnDescriptor hcd = new HColumnDescriptor(columnFamily);
      htd.addFamily(hcd);
    }
{code}

But note that table.getTableDescriptor() returns an UnmodifyableHTableDescriptor, so the add
would *always* fail.

The specific test that failed was TestDistributedLogSplitting.testMasterStartsUpWithLogSplittingWork.
Looks like the HMaster did not have the last table descriptor state, yet.




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