我经常遇到Hive查询的投射错误。下面给出了一个示例错误日志。错误包含以下详细信息：
完整的行数据
HiveException: Hive Runtime Error while processing row {"company_id":"3M","oper_carrier":"3M","flt_num":"4062","equip_id":"0331","equip_type":"SF3","act_fleet_type_cd":"U","shares_ship_id":"0331","report_dt":"2013-12-12","origin":"CKB","destination":"IAD"}
- 成本计算异常
Caused by: java.lang.ClassCastException: org.apache.hadoop.io.Text cannot be cast to org.apache.hadoop.io.IntWritable
我不知道如何调试此类异常。它描述了完整的行，而不是列的值。我已经在表格中检查了值及其数据类型。
请帮我识别问题并解决问题。
查询已运行：
SELECT
vss.company_id,vss.shares_ship_id,vss.seatmap_cd,vss.cabin,vss.seat, vss.seat_loc_dscr, vss.ep_seat AS EPlus_Seat, vss.ep_win_seat, vss.ep_asle_seat
FROM rvsed11 zz
LEFT OUTER JOIN rvsed22 vss
ON zz.company_id = vss.company_id
AND zz.shares_ship_id = vss.shares_ship_id
查看完整日志：
Query ID = root_20160111201839_bd6220b3-cca8-48ee-8d32-4e26fdaab8bf
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_1450202704586_0448, Tracking URL = http://server-D912:8088/proxy/application_1450202704586_0448/
Kill Command = /usr/share/hadoop_ecosystem/hadoop-2.6.0/bin/hadoop job -kill job_1450202704586_0448
Hadoop job information for Stage-3: number of mappers: 1; number of reducers: 0
2016-01-11 20:18:43,960 Stage-3 map = 0%, reduce = 0%
2016-01-11 20:19:02,202 Stage-3 map = 100%, reduce = 0%
Ended Job = job_1450202704586_0448 with errors
Error during job, obtaining debugging information...
Examining task ID: task_1450202704586_0448_m_000000 (and more) from job job_1450202704586_0448
Task with the most failures(4):
-----
Task ID:
task_1450202704586_0448_m_000000
URL:
http://server-D912:8088/taskdetails.jsp?jobid=job_1450202704586_0448&tipid=task_1450202704586_0448_m_000000
-----
Diagnostic Messages for this Task:
Error: java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row {"company_id":"3M","oper_carrier":"3M","flt_num":"4062","equip_id":"0331","equip_type":"SF3","act_fleet_type_cd":"U","shares_ship_id":"0331","report_dt":"2013-12-12","origin":"CKB","destination":"IAD"}
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:172)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:450)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row {"company_id":"3M","oper_carrier":"3M","flt_num":"4062","equip_id":"0331","equip_type":"SF3","act_fleet_type_cd":"U","shares_ship_id":"0331","report_dt":"2013-12-12","origin":"CKB","destination":"IAD"}
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:518)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:163)
... 8 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Unexpected exception: **org.apache.hadoop.io.Text cannot be cast to org.apache.hadoop.io.IntWritable**
at org.apache.hadoop.hive.ql.exec.MapJoinOperator.process(MapJoinOperator.java:426)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:837)
at org.apache.hadoop.hive.ql.exec.TableScanOperator.process(TableScanOperator.java:97)
at org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.forward(MapOperator.java:162)
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:508)
... 9 more
Caused by: java.lang.ClassCastException: org.apache.hadoop.io.Text cannot be cast to org.apache.hadoop.io.IntWritable
at org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableIntObjectInspector.get(WritableIntObjectInspector.java:36)
at org.apache.hadoop.hive.serde2.lazy.LazyUtils.writePrimitiveUTF8(LazyUtils.java:202)
at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serialize(LazySimpleSerDe.java:307)
at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.serializeField(LazySimpleSerDe.java:262)
at org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.doSerialize(LazySimpleSerDe.java:246)
at org.apache.hadoop.hive.serde2.AbstractEncodingAwareSerDe.serialize(AbstractEncodingAwareSerDe.java:50)
at org.apache.hadoop.hive.ql.exec.FileSinkOperator.process(FileSinkOperator.java:720)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:837)
at org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:88)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:837)
at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.internalForward(CommonJoinOperator.java:644)
at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:657)
at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genUniqueJoinObject(CommonJoinOperator.java:660)
at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:756)
at org.apache.hadoop.hive.ql.exec.MapJoinOperator.process(MapJoinOperator.java:414)
... 13 more
蜂房＆GT; DESCRIBE EXTENDED rvsed11;
OK
company_id string
oper_carrier string
flt_num string
equip_id string
equip_type string
act_fleet_type_cd string
shares_ship_id string
report_dt date
origin string
destination string
Detailed Table Information Table(tableName:rvsed11, dbName:DB_123, owner:root, createTime:1452081461, lastAccessTime:0, retention:0, sd:StorageDescriptor(cols:[FieldSchema(name:company_id, type:string, comment:null), FieldSchema(name:oper_carrier, type:string, comment:null), FieldSchema(name:flt_num, type:string, comment:null), FieldSchema(name:equip_id, type:string, comment:null), FieldSchema(name:equip_type, type:string, comment:null), FieldSchema(name:act_fleet_type_cd, type:string, comment:null), FieldSchema(name:shares_ship_id, type:string, comment:null), FieldSchema(name:report_dt, type:date, comment:null), FieldSchema(name:origin, type:string, comment:null), FieldSchema(name:destination, type:string, comment:null)], location:hdfs://server-D912:9090/user/hive/warehouse/DB_123.db/rvsed11, inputFormat:org.apache.hadoop.mapred.TextInputFormat, outputFormat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat, compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null, serializationLib:org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, parameters:{serialization.format=,, field.delim=,}), bucketCols:[], sortCols:[], parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[], skewedColValues:[], skewedColValueLocationMaps:{}), storedAsSubDirectories:false), partitionKeys:[], parameters:{numFiles=1, transient_lastDdlTime=1452081474, COLUMN_STATS_ACCURATE=true, totalSize=1883, numRows=0, rawDataSize=0}, viewOriginalText:null, viewExpandedText:null, tableType:MANAGED_TABLE)
蜂房＆GT; DESCRIBE EXTENDED rvsed22;
OK
company_id string
equip_id string
shares_ship_id string
seatmap_cd string
cabin string
seat string
seat_loc_dscr string
ep_win_seat int
ep_mid_seat int
ep_asle_seat int
em_win_seat int
em_mid_seat int
em_asle_seat int
ep_seat int
y_win_seat int
y_mid_seat int
y_asle_seat int
fj_win_seat int
fj_mid_seat int
fj_asle_seat int
exit_row int
bulkhead_row int
eff_dt date
disc_dt date
Detailed Table Information Table(tableName:rvsed22, dbName:DB_123, owner:root, createTime:1452081506, lastAccessTime:0, retention:0, sd:StorageDescriptor(cols:[FieldSchema(name:company_id, type:string, comment:null), FieldSchema(name:equip_id, type:string, comment:null), FieldSchema(name:shares_ship_id, type:string, comment:null), FieldSchema(name:seatmap_cd, type:string, comment:null), FieldSchema(name:cabin, type:string, comment:null), FieldSchema(name:seat, type:string, comment:null), FieldSchema(name:seat_loc_dscr, type:string, comment:null), FieldSchema(name:ep_win_seat, type:int, comment:null), FieldSchema(name:ep_mid_seat, type:int, comment:null), FieldSchema(name:ep_asle_seat, type:int, comment:null), FieldSchema(name:em_win_seat, type:int, comment:null), FieldSchema(name:em_mid_seat, type:int, comment:null), FieldSchema(name:em_asle_seat, type:int, comment:null), FieldSchema(name:ep_seat, type:int, comment:null), FieldSchema(name:y_win_seat, type:int, comment:null), FieldSchema(name:y_mid_seat, type:int, comment:null), FieldSchema(name:y_asle_seat, type:int, comment:null), FieldSchema(name:fj_win_seat, type:int, comment:null), FieldSchema(name:fj_mid_seat, type:int, comment:null), FieldSchema(name:fj_asle_seat, type:int, comment:null), FieldSchema(name:exit_row, type:int, comment:null), FieldSchema(name:bulkhead_row, type:int, comment:null), FieldSchema(name:eff_dt, type:date, comment:null), FieldSchema(name:disc_dt, type:date, comment:null)], location:hdfs://server-D912:9090/user/hive/warehouse/DB_123.db/rvsed22, inputFormat:org.apache.hadoop.mapred.TextInputFormat, outputFormat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat, compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null, serializationLib:org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, parameters:{serialization.format=,, field.delim=,}), bucketCols:[], sortCols:[], parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[], skewedColValues:[], skewedColValueLocationMaps:{}), storedAsSubDirectories:false), partitionKeys:[], parameters:{numFiles=1, transient_lastDdlTime=1452081534, COLUMN_STATS_ACCURATE=true, totalSize=14506, numRows=0, rawDataSize=0}, viewOriginalText:null, viewExpandedText:null, tableType:MANAGED_TABLE)