hive中创建子表并插入数据过程初始化MR报错解决方法

本文继成上一篇通过hive分析nginx日志文章，详情参考下面链接：

http://www.cnblogs.com/wcwen1990/p/7066230.html

接着来：

创建业务子表：

drop table if exists chavin.nginx_access_log_comm;
create table if not exists chavin.nginx_access_log_comm(
host STRING,
time STRING,
request STRING,
referer STRING
)
row format delimited fields terminated by '\t'
STORED AS orc tblproperties("orc.compress"="SNAPPY");
insert into chavin.nginx_access_log_comm select host,time,request,referer from chavin.nginx_access_log;

结果报错如下：

hive (default)> insert into chavin.nginx_access_log_comm select host,time,request,referer from chavin.nginx_access_log;
Query ID = root_20170623203838_35656104-9f46-4801-9dbd-1d5685de8187
Total jobs = 1
Launching Job 1 out of 1
Number of reduce tasks is set to 0 since there's no reduce operator
Starting Job = job_1498218985196_0009, Tracking URL = http://db01:8088/proxy/application_1498218985196_0009/
Kill Command = /opt/cloudera/parcels/CDH-5.9.2-1.cdh5.9.2.p0.3/lib/hadoop/bin/hadoop job  -kill job_1498218985196_0009
Hadoop job information for Stage-1: number of mappers: 4; number of reducers: 0
2017-06-23 20:38:10,702 Stage-1 map = 0%,  reduce = 0%
2017-06-23 20:38:32,584 Stage-1 map = 100%,  reduce = 0%
Ended Job = job_1498218985196_0009 with errors
Error during job, obtaining debugging information...
Examining task ID: task_1498218985196_0009_m_000002 (and more) from job job_1498218985196_0009

Task with the most failures(4):
-----
Task ID:
   task_1498218985196_0009_m_000002

URL:
   http://db01:8088/taskdetails.jsp?jobid=job_1498218985196_0009&tipid=task_1498218985196_0009_m_000002
-----
Diagnostic Messages for this Task:
Error: java.lang.RuntimeException: Error in configuring object
     at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:109)
     at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:75)
     at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133)
     at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:449)
     at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
     at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAs(Subject.java:415)
     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1912)
     at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:606)
     at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:106)
     ... 9 more
Caused by: java.lang.RuntimeException: Error in configuring object
     at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:109)
     at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:75)
     at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:133)
     at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:38)
     ... 14 more
Caused by: java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:606)
     at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:106)
     ... 17 more
Caused by: java.lang.RuntimeException: Map operator initialization failed
     at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.configure(ExecMapper.java:147)
     ... 22 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.ClassNotFoundException: Class org.apache.hadoop.hive.contrib.serde2.RegexSerDe not found
     at org.apache.hadoop.hive.ql.exec.MapOperator.getConvertedOI(MapOperator.java:323)
     at org.apache.hadoop.hive.ql.exec.MapOperator.setChildren(MapOperator.java:333)
     at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.configure(ExecMapper.java:116)
     ... 22 more
Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.hive.contrib.serde2.RegexSerDe not found
     at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2105)
     at org.apache.hadoop.hive.ql.plan.PartitionDesc.getDeserializer(PartitionDesc.java:140)
     at org.apache.hadoop.hive.ql.exec.MapOperator.getConvertedOI(MapOperator.java:297)
     ... 24 more

FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask
MapReduce Jobs Launched:
Stage-Stage-1: Map: 4   HDFS Read: 0 HDFS Write: 0 FAIL
Total MapReduce CPU Time Spent: 0 msec
hive (default)>

从日志看，貌似执行mr因为缺少包而导致的故障。
解决办法：向hive命令行中添加hive-contrib-1.1.0-cdh5.9.2.jar包：

hive (chavin)> add jar /opt/cloudera/parcels/CDH/lib/hive/lib/hive-contrib-1.1.0-cdh5.9.2.jar;
Added [/opt/cloudera/parcels/CDH/lib/hive/lib/hive-contrib-1.1.0-cdh5.9.2.jar] to class path
Added resources: [/opt/cloudera/parcels/CDH/lib/hive/lib/hive-contrib-1.1.0-cdh5.9.2.jar]

再次运行加载数据命令：

hive (chavin)>insert into chavin.nginx_access_log_comm select host,time,request,referer from chavin.nginx_access_log;
Query ID = root_20170623203333_d244452b-9fae-4131-826a-428620219dbe
Total jobs = 1
Launching Job 1 out of 1
Number of reduce tasks is set to 0 since there's no reduce operator
Starting Job = job_1498218985196_0007, Tracking URL = http://db01:8088/proxy/application_1498218985196_0007/
Kill Command = /opt/cloudera/parcels/CDH-5.9.2-1.cdh5.9.2.p0.3/lib/hadoop/bin/hadoop job  -kill job_1498218985196_0007
Hadoop job information for Stage-1: number of mappers: 4; number of reducers: 0
2017-06-23 20:33:59,442 Stage-1 map = 0%,  reduce = 0%
2017-06-23 20:34:19,200 Stage-1 map = 13%,  reduce = 0%, Cumulative CPU 50.65 sec
2017-06-23 20:34:20,239 Stage-1 map = 25%,  reduce = 0%, Cumulative CPU 53.72 sec
2017-06-23 20:34:21,333 Stage-1 map = 42%,  reduce = 0%, Cumulative CPU 56.75 sec
2017-06-23 20:34:22,368 Stage-1 map = 55%,  reduce = 0%, Cumulative CPU 62.82 sec
2017-06-23 20:34:24,451 Stage-1 map = 63%,  reduce = 0%, Cumulative CPU 68.45 sec
2017-06-23 20:34:28,984 Stage-1 map = 88%,  reduce = 0%, Cumulative CPU 88.58 sec
2017-06-23 20:34:31,049 Stage-1 map = 100%,  reduce = 0%, Cumulative CPU 91.97 sec
MapReduce Total cumulative CPU time: 1 minutes 31 seconds 970 msec
Ended Job = job_1498218985196_0007
Stage-4 is filtered out by condition resolver.
Stage-3 is selected by condition resolver.
Stage-5 is filtered out by condition resolver.
Starting Job = job_1498218985196_0008, Tracking URL = http://db01:8088/proxy/application_1498218985196_0008/
Kill Command = /opt/cloudera/parcels/CDH-5.9.2-1.cdh5.9.2.p0.3/lib/hadoop/bin/hadoop job  -kill job_1498218985196_0008
Hadoop job information for Stage-3: number of mappers: 1; number of reducers: 0
2017-06-23 20:34:38,770 Stage-3 map = 0%,  reduce = 0%
2017-06-23 20:34:44,973 Stage-3 map = 100%,  reduce = 0%, Cumulative CPU 1.46 sec
MapReduce Total cumulative CPU time: 1 seconds 460 msec
Ended Job = job_1498218985196_0008
Loading data to table chavin.nginx_access_log_comm
Table chavin.nginx_access_log_comm stats: [numFiles=1, numRows=2538166, totalSize=6856514, rawDataSize=1598858202]
MapReduce Jobs Launched:
Stage-Stage-1: Map: 4   Cumulative CPU: 91.97 sec   HDFS Read: 1000717778 HDFS Write: 6859275 SUCCESS
Stage-Stage-3: Map: 1   Cumulative CPU: 1.46 sec   HDFS Read: 6989009 HDFS Write: 6856514 SUCCESS
Total MapReduce CPU Time Spent: 1 minutes 33 seconds 430 msec
OK
host    time    request    referer
Time taken: 55.218 seconds

问题解决，但是该解决方法只能对本次Hive会话有用，Hive使用命令exit退出后再进入依旧会出现该问题。