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https://issues.apache.org/jira/browse/ATLAS-409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15068231#comment-15068231
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Aaron Dossett commented on ATLAS-409:
-
Sorry for not providing more details initially. Here is the exception I get
when trying to import a hive table with a schema defined by reference to an
avro schema file. The schema file does include defined columns. I will try to
recreate with a simple table and post the DDL and schema file. Note that the
hive_storagedesc does not contain any columns.
When I apply my fix, this error is resolved, for what it's worth.
2015-12-22 08:12:06,307 ERROR - [qtp151405253-17 -
89808aec-1c06-42ce-8815-0d634b7a152d:] ~ Unable to persist entity instance due
to a desrialization error (EntityResource:134)
org.apache.atlas.typesystem.types.ValueConversionException: Cannot convert
value '{Id='(type: hive_table, id: )', traits=[],
values={db={Id='(type: hive_db, id: 11e69cb7-2f66-446f-8a00-dde5ab805a70)',
traits=[], values={}}, createTime=1450129254, lastAccessTime=0, sd={Id='(type:
hive_storagedesc, id: )', traits=[], values={compressed=false,
serdeInfo=org.apache.atlas.typesystem.Struct@a1719f80,
location=hdfs://redstackambari.vagrant.tgt:8020/user/vagrant/firefly,
outputFormat=org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat,
qualifiedName=firefly.estore@primary, storedAsSubDirectories=false,
numBuckets=-1,
inputFormat=org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat,
parameters={}}}, columns=[], temporary=false, partitionKeys=[],
tableName=testtable, name=testdb.testtable@primary, owner=vagrant, retention=0,
tableType=EXTERNAL_TABLE, parameters={rawDataSize=-1, numFiles=0,
transient_lastDdlTime=1450129254, totalSize=0,
avro.schema.url=hdfs://redstackambari.vagrant.tgt:8020/user/vagrant/schema/test_schema.avsc,
EXTERNAL=TRUE, COLUMN_STATS_ACCURATE=false, numRows=-1}, comment=null}}' to
datatype hive_table
at
org.apache.atlas.typesystem.types.ClassType.convert(ClassType.java:145)
at
org.apache.atlas.services.DefaultMetadataService.deserializeClassInstances(DefaultMetadataService.java:304)
at
org.apache.atlas.services.DefaultMetadataService.createEntities(DefaultMetadataService.java:278)
..
Caused by: org.apache.atlas.typesystem.types.ValueConversionException: Cannot
convert value '{Id='(type: hive_storagedesc, id: )', traits=[],
values={compressed=false,
serdeInfo=org.apache.atlas.typesystem.Struct@a1719f80,
location=hdfs://redstackambari.vagrant.tgt:8020/user/vagrant/firefly,
outputFormat=org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat,
qualifiedName=firefly.estore@primary, storedAsSubDirectories=false,
numBuckets=-1,
inputFormat=org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat,
parameters={}}}' to datatype hive_storagedesc
at
org.apache.atlas.typesystem.types.ClassType.convert(ClassType.java:145)
at
org.apache.atlas.typesystem.types.ClassType.convert(ClassType.java:43)
at
org.apache.atlas.typesystem.persistence.StructInstance.set(StructInstance.java:122)
at
org.apache.atlas.typesystem.types.ClassType.convert(ClassType.java:143)
... 52 more
Caused by:
org.apache.atlas.typesystem.types.ValueConversionException$NullConversionException:
For field 'cols'
at
org.apache.atlas.typesystem.persistence.StructInstance.set(StructInstance.java:124)
at
org.apache.atlas.typesystem.types.ClassType.convert(ClassType.java:143)
... 55 more
Caused by:
org.apache.atlas.typesystem.types.ValueConversionException$NullConversionException:
Null value not allowed for multiplicty Multiplicity{lower=1, upper=2147483647,
isUnique=false}
at
org.apache.atlas.typesystem.types.DataTypes$ArrayType.convert(DataTypes.java:549)
at
org.apache.atlas.typesystem.types.DataTypes$ArrayType.convert(DataTypes.java:495)
at
org.apache.atlas.typesystem.persistence.StructInstance.set(StructInstance.java:122)
... 56 more
> Atlas will not import hive tables with no columns
> -
>
> Key: ATLAS-409
> URL: https://issues.apache.org/jira/browse/ATLAS-409
> Project: Atlas
> Issue Type: Bug
>Affects Versions: 0.6-incubating
>Reporter: Aaron Dossett
>Assignee: Aaron Dossett
> Attachments: ATLAS-409.patch
>
>
> Atlas won't import a Hive table with no columns (see below for an example of
> a valid hive table with no explicit columns). This is because the Atlas Hive
> Storage Descriptor class REQUIRES columns, but the Hive Table class allows
> them to be OPTIONAL.
> {code}
> CREATE TABLE example
> ROW FORMAT SERDE
> 'org.apache.hadoop.hive.serde2.avro.AvroSerDe'
> STORED AS INPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat'
> OUTPUTFORMAT
>
