Cloudera Hive: FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask MapReduce - hadoop

Question

I keep getting this error when trying to query data using hue
FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask MapReduce
From the hue job browser under the syslog tab
The error log is too big to paste here
http://pastebin.com/h8tgYuzR
Error from terminal
hive> SELECT count(*) FROM tweets;
Query ID = cloudera_20161128145151_137efb02-413b-4457-b21d-084101b77091
Total jobs = 1
Launching Job 1 out of 1
Number of reduce tasks determined at compile time: 1
In order to change the average load for a reducer (in bytes):
set hive.exec.reducers.bytes.per.reducer=<number>
In order to limit the maximum number of reducers:
set hive.exec.reducers.max=<number>
In order to set a constant number of reducers:
set mapreduce.job.reduces=<number>
Starting Job = job_1480364897609_0003, Tracking URL = http://quickstart.cloudera:8088/proxy/application_1480364897609_0003/
Kill Command = /usr/lib/hadoop/bin/hadoop job -kill job_1480364897609_0003
Hadoop job information for Stage-1: number of mappers: 1; number of reducers: 1
2016-11-28 14:52:09,804 Stage-1 map = 0%, reduce = 0%
2016-11-28 14:53:10,955 Stage-1 map = 0%, reduce = 0%
2016-11-28 14:53:13,213 Stage-1 map = 100%, reduce = 100%
Ended Job = job_1480364897609_0003 with errors
Error during job, obtaining debugging information...
Job Tracking URL: http://quickstart.cloudera:8088/proxy/application_1480364897609_0003/
Examining task ID: task_1480364897609_0003_m_000000 (and more) from job job_1480364897609_0003
Task with the most failures(4):
-----
Task ID:
task_1480364897609_0003_m_000000
URL:
http://0.0.0.0:8088/taskdetails.jsp?jobid=job_1480364897609_0003&tipid=task_1480364897609_0003_m_000000
-----
Diagnostic Messages for this Task:
Error: java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing writable Objavro.schema�
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:179)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing writable Objavro.schema�
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:505)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:170)
... 8 more
Caused by: org.apache.hadoop.hive.serde2.SerDeException: org.codehaus.jackson.JsonParseException: Unexpected character ('O' (code 79)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: java.io.StringReader#7aee0989; line: 1, column: 2]
at com.cloudera.hive.serde.JSONSerDe.deserialize(JSONSerDe.java:128)
at org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.readRow(MapOperator.java:136)
at org.apache.hadoop.hive.ql.exec.MapOperator$MapOpCtx.access$200(MapOperator.java:100)
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:496)
... 9 more
Caused by: org.codehaus.jackson.JsonParseException: Unexpected character ('O' (code 79)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: java.io.StringReader#7aee0989; line: 1, column: 2]
at org.codehaus.jackson.JsonParser._constructError(JsonParser.java:1291)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportError(JsonParserMinimalBase.java:385)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportUnexpectedChar(JsonParserMinimalBase.java:306)
at org.codehaus.jackson.impl.ReaderBasedParser._handleUnexpectedValue(ReaderBasedParser.java:630)
at org.codehaus.jackson.impl.ReaderBasedParser.nextToken(ReaderBasedParser.java:364)
at org.codehaus.jackson.map.ObjectMapper._initForReading(ObjectMapper.java:2439)
at org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2396)
at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1602)
at com.cloudera.hive.serde.JSONSerDe.deserialize(JSONSerDe.java:126)
... 12 more
FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask
MapReduce Jobs Launched:
Stage-Stage-1: Map: 1 Reduce: 1 HDFS Read: 0 HDFS Write: 0 FAIL
Total MapReduce CPU Time Spent: 0 msec
Here is the table
CREATE EXTERNAL TABLE tweets (
id BIGINT,
created_at STRING,
source STRING,
favorited BOOLEAN,
retweet_count INT,
retweeted_status STRUCT<
text:STRING,
user:STRUCT<screen_name:STRING,name:STRING>>,
entities STRUCT<
urls:ARRAY<STRUCT<expanded_url:STRING>>,
user_mentions:ARRAY<STRUCT<screen_name:STRING,name:STRING>>,
hashtags:ARRAY<STRUCT<text:STRING>>>,
text STRING,
user STRUCT<
screen_name:STRING,
name:STRING,
friends_count:INT,
followers_count:INT,
statuses_count:INT,
verified:BOOLEAN,
utc_offset:INT,
time_zone:STRING>,
in_reply_to_screen_name STRING
)
ROW FORMAT SERDE 'com.cloudera.hive.serde.JSONSerDe'
LOCATION '/user/cloudera/flume/tweets';
data from the file I am trying to load http://pastebin.com/g7eg1BaP

Answer 1

I have a feeling that the table was defined using AVRO as the data type but a non-avro file was loaded to the table.
Remember that Hive is "schema on read" and not "schema on load". It will check for schema only when a job is run, not during loading or defining.
Please post the CREATE TABLE command used and a few records from the file you are trying to load.
Hope this helps.