在使用Bulkload向HBase导入数据中, 自己编写Map与使用KeyValueSortReducer生成HFile时, 出现了下面的异常:

java.io.IOException: Non-increasing Bloom keys: 201301025200000000000003520000000000000500 after 201311195100000000000000010000000000001600

    at org.apache.hadoop.mapred.Child.main(Child.java:249)

该异常在源码的StoreFile类中, 即在使用StoreFile类生成HFile文件时抛出异常, 根据控制台异常信息可以知道异常出现在源码StoreFile.java:905行处,此处是append方法,该方法调用appendGeneralBloomfilter方法,生成Bloom key, 源码为:

public static class HFileGenerateMapper extends
			Mapper<LongWritable, Text, ImmutableBytesWritable, KeyValue> {
		private static int familyIndex = 0;
		private static Configuration conf = null;
		private static MyMD5 md5 = new MyMD5();
		@Override
		protected void setup(Context context) throws IOException,
				InterruptedException {
			conf = context.getConfiguration();
			familyIndex = conf.getInt("familyIndex",0);
		}
		@Override
		protected void map(LongWritable key, Text value, Context context)
				throws IOException, InterruptedException {
			ImmutableBytesWritable mykey = new ImmutableBytesWritable(
					value.toString().split(",")[0].getBytes());
			List<KeyValue> list = null;
			list = createKeyValue(value.toString());
			Iterator<KeyValue> it = list.iterator();
			while (it.hasNext()) {
				KeyValue kv = new KeyValue();
				kv = it.next();
				if (kv != null) {
					  context.write(mykey, kv);
				}
			}

		}
		/**
		 * a.CITY_NO,to_char(DT,'yyyy-MM-dd'),DATA_TYPE,E0,E1,E2,E3,E4,E5,
		 * MEASUREPOINTID,TRANSFORMERID,ZONEID,CAPACITY
		 * @param str
		 * @return
		 */
		private List<KeyValue> createKeyValue(String str) {
			List<KeyValue> list = new ArrayList<KeyValue>(CONSTANT_HBASE.TB2_FNColNames[familyIndex].length);
			String[] values = str.toString().split(",");
			String[] qualifiersName = CONSTANT_HBASE.TB2_FNColNames[familyIndex];
			for (int i = 0; i < qualifiersName.length; i++) {
				//需要作为rowKey的各个字段字符串组成RowKey
				String rowkey = values[1]+values[0]+values[11]+values[12];
				//加上32位的MD5
				rowkey += md5.getMD5Code(rowkey);
				String family = CONSTANT_HBASE.TB2_FamilyNames[familyIndex];
				String qualifier = qualifiersName[i];
			    String value_str = values[i+CONSTANT_HBASE.TB2_FNColIndex[familyIndex]-1];

				KeyValue kv = new KeyValue(Bytes.toBytes(rowkey),
						Bytes.toBytes(family), Bytes.toBytes(qualifier),
						CONSTANT_HBASE.timeStamp, Bytes.toBytes(value_str));
				list.add(kv);
			}
			return list;
		}
	}

ImmutableBytesWritable rowkey = new ImmutableBytesWritable(value.toString().split(",")[0].getBytes());

@Override
		protected void map(LongWritable key, Text value, Context context)
				throws IOException, InterruptedException {
			List<KeyValue> list = null;
			list = createKeyValue(value.toString());
			Iterator<KeyValue> it = list.iterator();
			while (it.hasNext()) {
				KeyValue kv = new KeyValue();
				kv = it.next();
				if (kv != null) {
					  <span style="color:#FF0000;">context.write(new ImmutableBytesWritable(kv.getKey()), kv);</span>
				}
			}

		}

Hadoop与HBase中遇到的问题(续)java.io.IOException: Non-increasing Bloom keys异常,布布扣,bubuko.com

Hadoop与HBase中遇到的问题(续)java.io.IOException: Non-increasing Bloom keys异常