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/*
 * 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.hadoop.hbase.tool;

import java.util.Arrays;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HBaseInterfaceAudience;
import org.apache.hadoop.hbase.tool.coprocessor.CoprocessorValidator;
import org.apache.hadoop.hbase.util.AbstractHBaseTool;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Tool for validating that cluster can be upgraded from HBase 1.x to 2.0
 * 

* Available validations: *

    *
  • validate-cp: Validates Co-processors compatibility
  • *
  • validate-dbe: Check Data Block Encoding for column families
  • *
  • validate-hfile: Check for corrupted HFiles
  • *
*

*/ @InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS) public class PreUpgradeValidator implements Tool { private static final Logger LOG = LoggerFactory.getLogger(PreUpgradeValidator.class); public static final String TOOL_NAME = "pre-upgrade"; public static final String VALIDATE_CP_NAME = "validate-cp"; public static final String VALIDATE_DBE_NAME = "validate-dbe"; public static final String VALIDATE_HFILE = "validate-hfile"; private Configuration configuration; @Override public Configuration getConf() { return configuration; } @Override public void setConf(Configuration conf) { this.configuration = conf; } private void printUsage() { System.out.println("usage: hbase " + TOOL_NAME + " command ..."); System.out.println("Available commands:"); System.out.printf(" %-15s Validate co-processors are compatible with HBase%n", VALIDATE_CP_NAME); System.out.printf(" %-15s Validate DataBlockEncodings are compatible with HBase%n", VALIDATE_DBE_NAME); System.out.printf(" %-15s Validate HFile contents are readable%n", VALIDATE_HFILE); System.out.println("For further information, please use command -h"); } @Override public int run(String[] args) throws Exception { if (args.length == 0) { printUsage(); return AbstractHBaseTool.EXIT_FAILURE; } Tool tool; switch (args[0]) { case VALIDATE_CP_NAME: tool = new CoprocessorValidator(); break; case VALIDATE_DBE_NAME: tool = new DataBlockEncodingValidator(); break; case VALIDATE_HFILE: tool = new HFileContentValidator(); break; case "-h": printUsage(); return AbstractHBaseTool.EXIT_FAILURE; default: System.err.println("Unknown command: " + args[0]); printUsage(); return AbstractHBaseTool.EXIT_FAILURE; } tool.setConf(getConf()); return tool.run(Arrays.copyOfRange(args, 1, args.length)); } public static void main(String[] args) { int ret; Configuration conf = HBaseConfiguration.create(); try { ret = ToolRunner.run(conf, new PreUpgradeValidator(), args); } catch (Exception e) { LOG.error("Error running command-line tool", e); ret = AbstractHBaseTool.EXIT_FAILURE; } System.exit(ret); } }




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