public Job createSubmittableJob(String[] args) throws IOException { Path partitionsPath = new Path(destPath, PARTITIONS_FILE_NAME); generatePartitions(partitionsPath); Job job = Job.getInstance(getConf(), getConf().get("mapreduce.job.name", "hashTable_" + tableHash.tableName)); Configuration jobConf = job.getConfiguration(); jobConf.setLong(HASH_BATCH_SIZE_CONF_KEY, tableHash.batchSize); job.setJarByClass(HashTable.class); TableMapReduceUtil.initTableMapperJob(tableHash.tableName, tableHash.initScan(), HashMapper.class, ImmutableBytesWritable.class, ImmutableBytesWritable.class, job); // use a TotalOrderPartitioner and reducers to group region output into hash files job.setPartitionerClass(TotalOrderPartitioner.class); TotalOrderPartitioner.setPartitionFile(jobConf, partitionsPath); job.setReducerClass(Reducer.class); // identity reducer job.setNumReduceTasks(tableHash.numHashFiles); job.setOutputKeyClass(ImmutableBytesWritable.class); job.setOutputValueClass(ImmutableBytesWritable.class); job.setOutputFormatClass(MapFileOutputFormat.class); FileOutputFormat.setOutputPath(job, new Path(destPath, HASH_DATA_DIR)); return job; }
public Job createSubmittableJob(String[] args) throws IOException { Path partitionsPath = new Path(destPath, PARTITIONS_FILE_NAME); generatePartitions(partitionsPath); Job job = Job.getInstance(getConf(), getConf().get("mapreduce.job.name", "hashTable_" + tableHash.tableName)); Configuration jobConf = job.getConfiguration(); jobConf.setLong(HASH_BATCH_SIZE_CONF_KEY, tableHash.batchSize); job.setJarByClass(HashTable.class); TableMapReduceUtil.initTableMapperJob(tableHash.tableName, tableHash.initScan(), HashMapper.class, ImmutableBytesWritable.class, ImmutableBytesWritable.class, job); // use a TotalOrderPartitioner and reducers to group region output into hash files job.setPartitionerClass(TotalOrderPartitioner.class); TotalOrderPartitioner.setPartitionFile(jobConf, partitionsPath); job.setReducerClass(Reducer.class); // identity reducer job.setNumReduceTasks(tableHash.numHashFiles); job.setOutputKeyClass(ImmutableBytesWritable.class); job.setOutputValueClass(ImmutableBytesWritable.class); job.setOutputFormatClass(MapFileOutputFormat.class); FileOutputFormat.setOutputPath(job, new Path(destPath, HASH_DATA_DIR)); return job; }
public Job createSubmittableJob(String[] args) throws IOException { Path partitionsPath = new Path(destPath, PARTITIONS_FILE_NAME); generatePartitions(partitionsPath); Job job = Job.getInstance(getConf(), getConf().get("mapreduce.job.name", "hashTable_" + tableHash.tableName)); Configuration jobConf = job.getConfiguration(); jobConf.setLong(HASH_BATCH_SIZE_CONF_KEY, tableHash.batchSize); job.setJarByClass(HashTable.class); TableMapReduceUtil.initTableMapperJob(tableHash.tableName, tableHash.initScan(), HashMapper.class, ImmutableBytesWritable.class, ImmutableBytesWritable.class, job); // use a TotalOrderPartitioner and reducers to group region output into hash files job.setPartitionerClass(TotalOrderPartitioner.class); TotalOrderPartitioner.setPartitionFile(jobConf, partitionsPath); job.setReducerClass(Reducer.class); // identity reducer job.setNumReduceTasks(tableHash.numHashFiles); job.setOutputKeyClass(ImmutableBytesWritable.class); job.setOutputValueClass(ImmutableBytesWritable.class); job.setOutputFormatClass(MapFileOutputFormat.class); FileOutputFormat.setOutputPath(job, new Path(destPath, HASH_DATA_DIR)); return job; }
public Job createSubmittableJob(String[] args) throws IOException { Path partitionsPath = new Path(destPath, PARTITIONS_FILE_NAME); generatePartitions(partitionsPath); Job job = Job.getInstance(getConf(), getConf().get("mapreduce.job.name", "hashTable_" + tableHash.tableName)); Configuration jobConf = job.getConfiguration(); jobConf.setLong(HASH_BATCH_SIZE_CONF_KEY, tableHash.batchSize); job.setJarByClass(HashTable.class); TableMapReduceUtil.initTableMapperJob(tableHash.tableName, tableHash.initScan(), HashMapper.class, ImmutableBytesWritable.class, ImmutableBytesWritable.class, job); // use a TotalOrderPartitioner and reducers to group region output into hash files job.setPartitionerClass(TotalOrderPartitioner.class); TotalOrderPartitioner.setPartitionFile(jobConf, partitionsPath); job.setReducerClass(Reducer.class); // identity reducer job.setNumReduceTasks(tableHash.numHashFiles); job.setOutputKeyClass(ImmutableBytesWritable.class); job.setOutputValueClass(ImmutableBytesWritable.class); job.setOutputFormatClass(MapFileOutputFormat.class); FileOutputFormat.setOutputPath(job, new Path(destPath, HASH_DATA_DIR)); return job; }