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Posted to commits@buildstream.apache.org by GitBox <gi...@apache.org> on 2021/01/22 18:07:29 UTC

[GitHub] [buildstream] nanonyme opened a new issue #1448: Error while pushing artifacts to local CAS in bst1

nanonyme opened a new issue #1448:
URL: https://github.com/apache/buildstream/issues/1448


   ```
   ERROR:grpc._server:Exception calling application: [Errno 21] Is a directory: '/data/cas/objects/'
   Traceback (most recent call last):
     File "/usr/lib64/python3.7/site-packages/grpc/_server.py", line 406, in _call_behavior
       return behavior(argument, context), True
     File "/usr/local/lib/python3.7/site-packages/buildstream/_artifactcache/casserver.py", line 381, in GetReference
       self.cas.update_tree_mtime(tree)
     File "/usr/local/lib/python3.7/site-packages/buildstream/_artifactcache/cascache.py", line 638, in update_tree_mtime
       self._reachable_refs_dir(reachable, tree, update_mtime=True)
     File "/usr/local/lib/python3.7/site-packages/buildstream/_artifactcache/cascache.py", line 792, in _reachable_refs_dir
       with open(self.objpath(tree), 'rb') as f:
   IsADirectoryError: [Errno 21] Is a directory: '/data/cas/objects/'
   ```


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[GitHub] [buildstream] nanonyme commented on issue #1448: Error while pushing artifacts to local CAS in bst1

Posted by GitBox <gi...@apache.org>.
nanonyme commented on issue #1448:
URL: https://github.com/apache/buildstream/issues/1448#issuecomment-765594756


   When this faulty digest is passed to https://github.com/apache/buildstream/blob/45442f963a19a67c9346b53f9f802dc17ed560f2/buildstream/_artifactcache/cascache.py#L392, then we get tree object which points to directory which results in the original error.


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[GitHub] [buildstream] nanonyme commented on issue #1448: Error while pushing artifacts to local CAS in bst1

Posted by GitBox <gi...@apache.org>.
nanonyme commented on issue #1448:
URL: https://github.com/apache/buildstream/issues/1448#issuecomment-765598573


   This in turn seems possible if either
   
   1. https://github.com/apache/buildstream/blob/45442f963a19a67c9346b53f9f802dc17ed560f2/buildstream/_artifactcache/cascache.py#L466 this serialization results in empty bytestring
   2. https://github.com/apache/buildstream/blob/45442f963a19a67c9346b53f9f802dc17ed560f2/buildstream/utils.py#L498 this helper manages somehow storing data such that it doesn't properly hit filesystem


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[GitHub] [buildstream] nanonyme commented on issue #1448: Error while pushing artifacts to local CAS in bst1

Posted by GitBox <gi...@apache.org>.
nanonyme commented on issue #1448:
URL: https://github.com/apache/buildstream/issues/1448#issuecomment-765593295


   I've debugged that this happens because https://github.com/apache/buildstream/blob/45442f963a19a67c9346b53f9f802dc17ed560f2/buildstream/_artifactcache/cascache.py#L488 is invoked when relevant path is empty.


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[GitHub] [buildstream] nanonyme edited a comment on issue #1448: Error while pushing artifacts to local CAS in bst1

Posted by GitBox <gi...@apache.org>.
nanonyme edited a comment on issue #1448:
URL: https://github.com/apache/buildstream/issues/1448#issuecomment-765593295


   I've debugged that this happens because https://github.com/apache/buildstream/blob/45442f963a19a67c9346b53f9f802dc17ed560f2/buildstream/_artifactcache/cascache.py#L488 is invoked when relevant file exists but is empty. Parsing succeeds but eg hash becomes an empty string.


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