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Issue #2422

Updated by bmbouter over 5 years ago

I think plugin developers should think more about backwards compatibility with clients. 

 In this case, I was getting an error: 

 <pre> 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608) unexpected error occurred importing uploaded file: The field 'checksum_type' does not exist on the document 'RPM' 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608) Traceback (most recent call last): 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)     File "/usr/lib/python2.7/site-packages/pulp_rpm/plugins/importers/yum/upload.py", line 113, in upload 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)       handlers[type_id](repo, type_id, unit_key, metadata, file_path, conduit, config) 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)     File "/usr/lib/python2.7/site-packages/pulp_rpm/plugins/importers/yum/upload.py", line 403, in _handle_package 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)       unit = model_class(**rpm_data) 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)     File "/usr/lib/python2.7/site-packages/pulp_rpm/plugins/db/models.py", line 735, in __init__ 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)       super(RpmBase, self).__init__(*args, **kwargs) 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)     File "/usr/lib/python2.7/site-packages/pulp_rpm/plugins/db/models.py", line 153, in __init__ 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)       super(NonMetadataPackage, self).__init__(*args, **kwargs) 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)     File "/usr/lib/python2.7/site-packages/pulp/server/db/model/__init__.py", line 55, in __init__ 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)       super(AutoRetryDocument, self).__init__(*args, **kwargs) 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)     File "/usr/lib/python2.7/site-packages/mongoengine/base/document.py", line 80, in __init__ 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608)       raise FieldDoesNotExist(msg) 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp_rpm.plugins.importers.yum.upload:ERROR: (14734-80608) FieldDoesNotExist: The field 'checksum_type' does not exist on the document 'RPM' 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp.server.managers.content.upload:ERROR: (14734-80608) Error from the importer while importing uploaded unit to repository [yocto-x86_64] 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp.server.managers.content.upload:ERROR: (14734-80608) Traceback (most recent call last): 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp.server.managers.content.upload:ERROR: (14734-80608)     File "/usr/lib/python2.7/site-packages/pulp/server/managers/content/upload.py", line 223, in import_uploaded_unit 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp.server.managers.content.upload:ERROR: (14734-80608)       unit_type=unit_type_id, summary=result['summary'], details=result['details'] 
 Nov 14 12:00:40 pulp-dev-win.unx.sas.com pulp[14734]: pulp.server.managers.content.upload:ERROR: (14734-80608) PulpCodedException: The importer yum_importer indicated a failed response when uploading rpm unit to repository yocto-x86_64. 
 </pre> 


 



 Which didn't make any sense at first blush. 

 What really happens: the old client is supplying the old-style fields (checksum_type). The pulp_rpm plugin attempts to take all the client-supplied metadata fields and pass them into the Mongo model's constructor. 

 In an ideal world, when a field is removed or renamed, the plugin should remove or rewrite the user-supplied metadata in the import call, so that old clients continue to work against new servers. I don't think it's overly taxing for the plugin developer to do this.

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