Created 10-12-2016 08:42 PM
I created a hive table as follows :
CREATE EXTERNAL TABLE tweetdata(created_at STRING, text STRING, person STRUCT< screen_name:STRING, name:STRING, locations:STRING, description:STRING, created_at:STRING, followers_count:INT, url:STRING> ) ROW FORMAT SERDE 'com.cloudera.hive.serde.JSONSerDe' location '/user/flume/tweets';
but I am getting errors doing selecting
iam using HDP2.5
hive> > describe tweetdata; OK created_at string from deserializer text string from deserializer person struct<screen_name:string,name:string,locations:string,description:string,created_at:string,followers_count:int,url:string> from deserializer Time taken: 0.076 seconds, Fetched: 3 row(s) hive> select person.name, text from tweetdata; OK Failed with exception java.io.IOException: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@4668c5ea; line: 1, column: 2] Time taken: 0.077 seconds hive>
Created 10-12-2016 09:59 PM
I fixed this error by using another serde "org.openx.data.jsonserde.JsonSerDe "
Created 10-12-2016 08:52 PM
I just created an empty simple table with no structures and its showing the same behavior .what am I missing here?
Logging initialized using configuration in file:/etc/hive/2.5.0.0-1245/0/hive-log4j.properties hive> create external table load_tweets(id BIGINT,text STRING) > ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe' > LOCATION '/user/flume/tweets'; OK Time taken: 1.003 seconds hive> describe load_tweets; OK id bigint from deserializer text string from deserializer Time taken: 0.268 seconds, Fetched: 2 row(s) hive> > ; hive> select * from load_tweets; OK Failed with exception java.io.IOException: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.ByteArrayInputStream@5b8402e0; line: 1, column: 2] Time taken: 1.386 seconds hive>
Created 10-12-2016 09:59 PM
I fixed this error by using another serde "org.openx.data.jsonserde.JsonSerDe "