[HBASE-12445] hbase is removing all remaining cells immediately after the cell marked with marker = KeyValue.Type.DeleteColumn via PUT

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.98.8, 0.99.2
• Hadoop Flags: Reviewed
• Assignee: Hani Nadra
• Reporter: sri venu bora
• Created: 07/Nov/14 22:19
• Updated: 06/Apr/18 17:55
• Resolved: 12/Nov/14 23:56

Description

Code executed:

    @Test
    public void testHbasePutDeleteCell() throws Exception {
        TableName tableName = TableName.valueOf("my_test");
        Configuration configuration = HBaseConfiguration.create();
        HTableInterface table = new HTable(configuration, tableName);
        final String rowKey = "12345";
        final byte[] familly = Bytes.toBytes("default");
        // put one row
      Put put = new Put(rowKey);
      put.add(family, Bytes.toBytes("A"), Bytes.toBytes("a"));
      put.add(family, Bytes.toBytes("B"), Bytes.toBytes("b"));
      put.add(family, Bytes.toBytes("C"), Bytes.toBytes("c"));
      put.add(family, Bytes.toBytes("D"), Bytes.toBytes("d"));	  
      table.put(put);
      // get row back and assert the values
      Get get = new Get(rowKey);
      Result result = table.get(get);
      assertTrue("Column A value should be a",
        Bytes.toString(result.getValue(family, Bytes.toBytes("A"))).equals("a"));
      assertTrue("Column B value should be b",
        Bytes.toString(result.getValue(family, Bytes.toBytes("B"))).equals("b"));
      assertTrue("Column C value should be c",
        Bytes.toString(result.getValue(family, Bytes.toBytes("C"))).equals("c"));
      assertTrue("Column D value should be d",
        Bytes.toString(result.getValue(family, Bytes.toBytes("D"))).equals("d"));
      // put the same row again with C column deleted
      put = new Put(rowKey);
      put.add(family, Bytes.toBytes("A"), Bytes.toBytes("a1"));
      put.add(family, Bytes.toBytes("B"), Bytes.toBytes("b1"));
      KeyValue marker = new KeyValue(rowKey, family, Bytes.toBytes("C"),
        HConstants.LATEST_TIMESTAMP, KeyValue.Type.DeleteColumn); 
      put.add(marker);
	  put.add(family, Bytes.toBytes("D"), Bytes.toBytes("d1"));
      table.put(put);

      // get row back and assert the values
      get = new Get(rowKey);
      result = table.get(get);
      assertTrue("Column A value should be a1",
        Bytes.toString(result.getValue(family, Bytes.toBytes("A"))).equals("a1"));
      assertTrue("Column B value should be b1",
        Bytes.toString(result.getValue(family, Bytes.toBytes("B"))).equals("b1"));
      assertTrue("Column C should not exist",
        result.getValue(family, Bytes.toBytes("C")) == null);
	  assertTrue("Column D value should be d1",
        Bytes.toString(result.getValue(family, Bytes.toBytes("D"))).equals("d1"));
    }

This assertion fails, the cell D is also deleted

Issue Links

• blocks: HBASE-11788 hbase is not deleting the cell when a Put with a KeyValue, KeyValue.Type.Delete is submitted