执行hive 任务的时候 有些任务会报下列错误 hive 0.14 + 版本才会有这个问题，
任务重做之后可能又会成功。
1.错误信息：
hdfs://nameservice1/tmp/hive/dbs/9c29873a-664f-45a4-87f5-aab6601b9661/hive_2015-09-22_14-51-49_927_648109380558598376-11/-mr-10066/129d4884-d21a-44f2-970c-454148932292/map.xml:
org.apache.hive.com.esotericsoftware.kryo.kryoexception: encountered unregistered class id: 109
serialization trace:
parentoperators (org.apache.hadoop.hive.ql.exec.tablescanoperator)
aliastowork (org.apache.hadoop.hive.ql.plan.mapwork)
at org.apache.hadoop.hive.ql.exec.utilities.getbasework(utilities.java:450)
at org.apache.hadoop.hive.ql.exec.utilities.getmapwork(utilities.java:296)
at org.apache.hadoop.hive.ql.io.hiveinputformat.init(hiveinputformat.java:268)
at org.apache.hadoop.hive.ql.io.hiveinputformat.pushprojectionsandfilters(hiveinputformat.java:484)
at org.apache.hadoop.hive.ql.io.hiveinputformat.pushprojectionsandfilters(hiveinputformat.java:477)
at org.apache.hadoop.hive.ql.io.combinehiveinputformat.getrecordreader(combinehiveinputformat.java:715)
at org.apache.hadoop.mapred.maptask$trackedrecordreader.<init>(maptask.java:169)
at org.apache.hadoop.mapred.maptask.runoldmapper(maptask.java:432)
