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

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

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

org.apache.hadoop.hbase.client.Admin.modifyTable()
Modify an existing table, more IRB friendly version. Asynchronous operation. This means that it may be a while before your schema change is updated across all of the table. @param tableName name of table. @param htd modified description of the table @throws IOException if a remote or network exception occurs


      // Modify the table adding another family and verify the descriptor
      HTableDescriptor modifiedHtd = new HTableDescriptor(TABLE_NAME);
      modifiedHtd.addFamily(new HColumnDescriptor(FAMILY_0));
      modifiedHtd.addFamily(new HColumnDescriptor(FAMILY_1));
      admin.modifyTable(TABLE_NAME, modifiedHtd);
      verifyTableDescriptor(TABLE_NAME, FAMILY_0, FAMILY_1);
    } finally {
      admin.deleteTable(TABLE_NAME);
    }
  }

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          HTableDescriptor htd = admin.getTableDescriptor(tableName);
          String val = String.valueOf(random.nextInt());
          htd.getFamily(family).setValue(val, val);
          desc.getFamily(family).setValue(val, val); // save it for later
                                                     // control
          admin.modifyTable(tableName, htd);
        } catch (Exception ex) {
          LOG.warn("Caught exception", ex);
          fail(ex.getMessage());
        }
      }

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