Sharmadha Sainath created ATLAS-1681:
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Summary: Atlas went into inconsistent state after creating a type
with faulty definition
Key: ATLAS-1681
URL: https://issues.apache.org/jira/browse/ATLAS-1681
Project: Atlas
Issue Type: Bug
Components: atlas-core
Affects Versions: trunk, 0.9-incubating
Reporter: Sharmadha Sainath
Attachments: EmptyAttrNameInTypeDef.txt
Created an entity type with one of its attribute name empty with the following
definition with the following JSON:
{code}
{
"structDefs":[
],
"entityDefs":[
{
"category":"ENTITY",
"updateTime":12345,
"name":"entity_incorrect",
"typeVersion":"0.1",
"attributeDefs":[
{
"name":"type_str",
"isOptional":true,
"isUnique":false,
"isIndexable":false,
"typeName":"string",
"valuesMaxCount":1,
"cardinality":"SINGLE",
"valuesMinCount":0
},
{
"name":"",
"typeName":"int",
"isOptional":true,
"cardinality":"SINGLE",
"valuesMinCount":-1,
"valuesMaxCount":-1,
"isUnique":false,
"isIndexable":false
}
],
"superTypes":[
],
"version":12345,
"guid":"-48964f25979it51334479",
"createTime":12345,
"description":"incorrect json"
}
],
"classificationDefs":[
],
"enumDefs":[
]
}
{code}
*Note the second attribute name in the attribute definition*
POSTed the type definition to
{code}
/api/atlas/v2/types/typedefs
{code}
The type is created ,with 200 OK but with exception
{code}
java.lang.IllegalArgumentException: Attribute name cannot be empty
{code}
(Attached the complete stack trace as a file)
Inconsistency Observed :
1. Types drop down box lists the type , but clicking on it throws "Invalid
Expression" exception
2. Therafter ,any type creation (entity type , classification etc) is
succeeding with 200 OK but application.log has exception :
{code}
org.apache.atlas.query.Expressions$UnresolvedException: Unresolved id,
expression: entity_correct
{code}
Example :
After POSTing the incorrect json to Atlas , created a tag tag_after in UI . It
succeeded. But Search of tag throws invalid expression and tag Association to
entity fails with
{code}
org.apache.atlas.exception.AtlasBaseException:
org.apache.atlas.repository.RepositoryException:
org.apache.atlas.typesystem.exception.TypeNotFoundException: Unknown datatype:
tag_after
{code}
Type registration is affected when Atlas accepts the wrong JSON.
Giving an empty attribute name is not a very common scenario but at what
conditions such wrong JSONs could be accepted should be looked at.
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