| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.kylin.storage.hbase.util; |
| |
| import java.io.IOException; |
| import java.util.Iterator; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseConfiguration; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.Connection; |
| import org.apache.hadoop.hbase.client.ConnectionFactory; |
| import org.apache.hadoop.hbase.client.Table; |
| import org.apache.hadoop.hbase.client.Result; |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.kylin.common.util.Bytes; |
| import org.apache.kylin.common.util.BytesUtil; |
| import org.apache.kylin.storage.hbase.HBaseConnection; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| */ |
| public class RowCounterCLI { |
| private static final Logger logger = LoggerFactory.getLogger(RowCounterCLI.class); |
| |
| public static void main(String[] args) throws IOException { |
| |
| if (args == null || args.length != 3) { |
| System.out.println("Usage: hbase org.apache.hadoop.util.RunJar kylin-job-latest.jar org.apache.kylin.job.tools.RowCounterCLI [HTABLE_NAME] [STARTKEY] [ENDKEY]"); |
| } |
| |
| System.out.println(args[0]); |
| String htableName = args[0]; |
| System.out.println(args[1]); |
| byte[] startKey = BytesUtil.fromReadableText(args[1]); |
| System.out.println(args[2]); |
| byte[] endKey = BytesUtil.fromReadableText(args[2]); |
| |
| if (startKey == null) { |
| System.out.println("startkey is null "); |
| } else { |
| System.out.println("startkey lenght: " + startKey.length); |
| } |
| |
| System.out.println("start key in binary: " + Bytes.toStringBinary(startKey)); |
| System.out.println("end key in binary: " + Bytes.toStringBinary(endKey)); |
| |
| Configuration conf = HBaseConnection.getCurrentHBaseConfiguration(); |
| |
| Scan scan = new Scan(); |
| scan.setCaching(512); |
| scan.setCacheBlocks(true); |
| scan.setStartRow(startKey); |
| scan.setStopRow(endKey); |
| |
| logger.info("My Scan " + scan.toString()); |
| |
| Connection conn = ConnectionFactory.createConnection(conf); |
| Table tableInterface = conn.getTable(TableName.valueOf(htableName)); |
| |
| Iterator<Result> iterator = tableInterface.getScanner(scan).iterator(); |
| int counter = 0; |
| while (iterator.hasNext()) { |
| iterator.next(); |
| counter++; |
| if (counter % 1000 == 1) { |
| System.out.println("number of rows: " + counter); |
| } |
| } |
| System.out.println("number of rows: " + counter); |
| tableInterface.close(); |
| conn.close(); |
| } |
| } |