default BufferedMutator getBufferedMutator(TableName tableName) throws IOException {
    return getBufferedMutator(new BufferedMutatorParams(tableName));
  }
<p>
Retrieve a {@link BufferedMutator} for performing client-side buffering of writes. The
{@link BufferedMutator} returned by this method is thread-safe. This BufferedMutator will use
the Connection's ExecutorService. This object can be used for long lived operations.
</p>
<p>
The caller is responsible for calling {@link BufferedMutator#close()} on the returned
{@link BufferedMutator} instance.
</p>
<p>
This accessor will use the connection's ExecutorService and will throw an exception in the main
thread when an asynchronous exception occurs.
@param tableName the name of the table
@return a {@link BufferedMutator} for the supplied tableName.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/Connection.java