Madhan Neethiraj created ATLAS-1203:
---------------------------------------

             Summary: 'Invalid type definition' error during startup
                 Key: ATLAS-1203
                 URL: https://issues.apache.org/jira/browse/ATLAS-1203
             Project: Atlas
          Issue Type: Bug
            Reporter: Madhan Neethiraj
            Assignee: Madhan Neethiraj


After the fix for ATLAS-1184, following exception/error is seen in Atlas server 
logs during startup:

{code}
2016-10-01 05:55:27,437 INFO  - [main:] ~ Initializing type system for the 
first time. (DefaultMetadataService:165)
2016-10-01 05:55:27,751 ERROR - [main:] ~ Unable to deserialize json={
  "enumTypes":[

  ],
  "structTypes":[

  ],
  "traitTypes":[

  ],
  "classTypes":[

  ]
} (DefaultMetadataService:286)
java.lang.IllegalArgumentException: Invalid type definition
        at 
org.apache.atlas.services.DefaultMetadataService.validateTypeDefinition(DefaultMetadataService.java:282)
        at 
org.apache.atlas.services.DefaultMetadataService.createOrUpdateTypes(DefaultMetadataService.java:244)
        at 
org.apache.atlas.services.DefaultMetadataService.createType(DefaultMetadataService.java:239)
        at 
org.apache.atlas.services.ReservedTypesRegistrar.registerType(ReservedTypesRegistrar.java:124)
        at 
org.apache.atlas.services.ReservedTypesRegistrar.registerTypes(ReservedTypesRegistrar.java:69)
        at 
org.apache.atlas.services.DefaultMetadataService.restoreTypeSystem(DefaultMetadataService.java:170)
        at 
org.apache.atlas.services.DefaultMetadataService.<init>(DefaultMetadataService.java:153)
        at 
org.apache.atlas.services.DefaultMetadataService.<init>(DefaultMetadataService.java:118)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
...
...
org.apache.atlas.web.service.EmbeddedServer.start(EmbeddedServer.java:93)
        at org.apache.atlas.Atlas.main(Atlas.java:118)
2016-10-01 05:55:27,762 INFO  - [main:] ~ Restoring type system from the store 
(DefaultMetadataService:162)
2016-10-01 05:55:27,770 INFO  - [main:] ~ Restoring type CLASS.fs_path.null 
(GraphBackedTypeStore:243)
{code}



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