rui miranda created HIVE-16370:
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Summary: avro data type null not fully supported if table is
partitioned
Key: HIVE-16370
URL: https://issues.apache.org/jira/browse/HIVE-16370
Project: Hive
Issue Type: Bug
Affects Versions: 2.1.1, 1.1.0
Reporter: rui miranda
Priority: Minor
I was attempting to create hive tables over some partitioned avro files. It
seems the void data type (avro null) is not supported on partitioned tables (i
could not replicate the bug on an un-partitioned table).
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i managed to replicate the bug on two different hive versions.
Hive 1.1.0-cdh5.10.0
Hive 2.1.1-amzn-0
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how to replicate (avro tools are required to create the avro files):
$ wget
http://mirror.serversupportforum.de/apache/avro/avro-1.8.1/java/avro-tools-1.8.1.jar
$ mkdir /tmp/avro
$ mkdir /tmp/avro/null
$ echo "{ \
\"type\" : \"record\", \
\"name\" : \"null_failure\", \
\"namespace\" : \"org.apache.avro.null_failure\", \
\"doc\":\"the purpose of this schema is to replicate the hive avro null
failure\", \
\"fields\" : [{\"name\":\"one\", \"type\":\"null\",\"default\":null}] \
} " > /tmp/avro/null/schema.avsc
$ echo "{\"one\":null}" > /tmp/avro/null/data.json
$ java -jar avro-tools-1.8.1.jar fromjson --schema-file
/tmp/avro/null/schema.avsc /tmp/avro/null/data.json > /tmp/avro/null/data.avro
$ hdfs dfs -mkdir /tmp/avro
$ hdfs dfs -mkdir /tmp/avro/null
$ hdfs dfs -mkdir /tmp/avro/null/schema
$ hdfs dfs -mkdir /tmp/avro/null/data
$ hdfs dfs -mkdir /tmp/avro/null/data/foo=bar
$ hdfs dfs -copyFromLocal /tmp/avro/null/schema.avsc
/tmp/avro/null/schema/schema.avsc
$ hdfs dfs -copyFromLocal /tmp/avro/null/data.avro
/tmp/avro/null/data/foo=bar/data.avro
$ hive
hive> CREATE EXTERNAL TABLE avro_null
PARTITIONED BY (foo string)
ROW FORMAT SERDE
'org.apache.hadoop.hive.serde2.avro.AvroSerDe'
STORED as INPUTFORMAT
'org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat'
OUTPUTFORMAT
'org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat'
LOCATION
'/tmp/avro/null/data/'
TBLPROPERTIES (
'avro.schema.url'='/tmp/avro/null/schema/schema.avsc')
;
OK
Time taken: 3.127 seconds
hive> msck repair table avro_null;
OK
Partitions not in metastore: avro_null:foo=bar
Repair: Added partition to metastore avro_null:foo=bar
Time taken: 0.712 seconds, Fetched: 2 row(s)
hive> select * from avro_null;
FAILED: RuntimeException org.apache.hadoop.hive.ql.metadata.HiveException:
Failed with exception Hive internal error inside
isAssignableFromSettablePrimitiveOI void not supported
yet.java.lang.RuntimeException: Hive internal error inside
isAssignableFromSettablePrimitiveOI void not supported yet.
hive> select foo, count(1) from avro_null group by foo;
OK
bar 1
Time taken: 29.806 seconds, Fetched: 1 row(s)
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