Examples of org.apache.hadoop.hbase.client.Admin.addColumn()

Class org.apache.hadoop.hbase.client.Admin

Examples of org.apache.hadoop.hbase.client.Admin.addColumn()

org.apache.hadoop.hbase.client.Admin.addColumn()
Add a column to an existing table. Asynchronous operation. @param tableName name of the table to add column to @param column column descriptor of column to be added @throws IOException if a remote or network exception occurs

    try {
      // Verify the table descriptor
      verifyTableDescriptor(TABLE_NAME, FAMILY_0);


      // Modify the table removing one family and verify the descriptor
      admin.addColumn(TABLE_NAME, new HColumnDescriptor(FAMILY_1));
      verifyTableDescriptor(TABLE_NAME, FAMILY_0, FAMILY_1);
    } finally {
      admin.deleteTable(TABLE_NAME);
    }
  }

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    deleteColumn.await();


    try {
      Admin admin = TEST_UTIL.getHBaseAdmin();
      admin.addColumn(TABLE_NAME, new HColumnDescriptor(NEW_FAMILY));
      fail("Was expecting TableLockTimeoutException");
    } catch (LockTimeoutException ex) {
      //expected
    }
    shouldFinish.get();

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    ExecutorService executor = Executors.newFixedThreadPool(2);
    Future<Object> alterTableFuture = executor.submit(new Callable<Object>() {
      @Override
      public Object call() throws Exception {
        Admin admin = TEST_UTIL.getHBaseAdmin();
        admin.addColumn(TABLE_NAME, new HColumnDescriptor(NEW_FAMILY));
        LOG.info("Added new column family");
        HTableDescriptor tableDesc = admin.getTableDescriptor(TABLE_NAME);
        assertTrue(tableDesc.getFamiliesKeys().contains(NEW_FAMILY));
        return null;
      }

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