| /* |
| * 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.chukwa.extraction.demux; |
| |
| |
| import java.io.IOException; |
| import org.apache.hadoop.chukwa.conf.ChukwaConfiguration; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.FileUtil; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.util.Tool; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.apache.log4j.Logger; |
| import org.apache.hadoop.chukwa.util.ExceptionUtil; |
| |
| public class RecordMerger extends Thread { |
| static Logger log = Logger.getLogger(RecordMerger.class); |
| ChukwaConfiguration conf = null; |
| FileSystem fs = null; |
| String[] mergeArgs = null; |
| Tool tool = null; |
| boolean deleteRawData = false; |
| |
| public RecordMerger(ChukwaConfiguration conf, FileSystem fs, Tool tool, |
| String[] mergeArgs, boolean deleteRawData) { |
| this.conf = conf; |
| this.fs = fs; |
| this.tool = tool; |
| this.mergeArgs = mergeArgs.clone(); |
| this.deleteRawData = deleteRawData; |
| } |
| |
| @Override |
| public void run() { |
| mergeRecords(); |
| } |
| |
| void mergeRecords() { |
| System.out.println("\t Running Merge! : output [" + mergeArgs[1] + "]"); |
| int res; |
| try { |
| res = ToolRunner.run(conf, tool, mergeArgs); |
| System.out.println("MR exit status: " + res); |
| if (res == 0) { |
| writeRecordFile(mergeArgs[1] + "/part-00000", mergeArgs[2], |
| mergeArgs[3]); |
| |
| // delete input |
| if (deleteRawData) { |
| FileUtil.fullyDelete(fs, new Path(mergeArgs[0])); |
| |
| Path hours = new Path(mergeArgs[2]); |
| FileStatus[] hoursOrMinutesFS = fs.listStatus(hours); |
| for (FileStatus hourOrMinuteFS : hoursOrMinutesFS) { |
| String dirName = hourOrMinuteFS.getPath().getName(); |
| |
| try { |
| Integer.parseInt(dirName); |
| FileUtil.fullyDelete(fs, new Path(mergeArgs[2] + "/" + dirName)); |
| if (log.isDebugEnabled()) { |
| log.debug("Deleting Hour directory: " + mergeArgs[2] + "/" |
| + dirName); |
| } |
| } catch (NumberFormatException e) { /* |
| * Not an Hour or Minutes |
| * directory- Do nothing |
| */ |
| log.debug(ExceptionUtil.getStackTrace(e)); |
| } |
| } |
| } |
| |
| // delete rolling tag |
| FileUtil.fullyDelete(fs, new Path(mergeArgs[3])); |
| // delete M/R temp directory |
| FileUtil.fullyDelete(fs, new Path(mergeArgs[1])); |
| } else { |
| throw new RuntimeException("Error in M/R merge operation!"); |
| } |
| |
| } catch (Exception e) { |
| e.printStackTrace(); |
| throw new RuntimeException("Error in M/R merge operation!", e); |
| } |
| } |
| |
| void writeRecordFile(String input, String outputDir, String fileName) |
| throws IOException { |
| boolean done = false; |
| int count = 1; |
| Path recordFile = new Path(input); |
| do { |
| Path destDirPath = new Path(outputDir); |
| Path destFilePath = new Path(outputDir + "/" + fileName + "." + count |
| + ".evt"); |
| |
| if (!fs.exists(destDirPath)) { |
| fs.mkdirs(destDirPath); |
| log.info(">>>>>>>>>>>> create Dir" + destDirPath); |
| } |
| |
| if (!fs.exists(destFilePath)) { |
| boolean res = fs.rename(recordFile, destFilePath); |
| |
| if (res == false) { |
| log.info(">>>>>>>>>>>> Use standard copy rename failded"); |
| FileUtil.copy(fs, recordFile, fs, destFilePath, false, false, conf); |
| } |
| done = true; |
| } else { |
| log.info("Start MoveToRepository main()"); |
| } |
| count++; |
| // Just put a limit here |
| // TODO read from config |
| if (count > 1000) { |
| throw new IOException("too many files in this directory: " |
| + destDirPath); |
| } |
| } while (!done); |
| } |
| } |