[tahoe-lafs-trac-stream] [tahoe-lafs] #2116: xml parse error from S4 service

tahoe-lafs trac at tahoe-lafs.org
Mon Mar 17 22:03:07 UTC 2014 

#2116: xml parse error from S4 service
-------------------------+-------------------------------------------------
     Reporter:  zooko    |      Owner:  daira
         Type:  defect   |     Status:  assigned
     Priority:  major    |  Milestone:  undecided
    Component:  code-    |    Version:  1.9.0-s3branch
  storage                |   Keywords:  s3 error txaws retry LeastAuthority
   Resolution:           |
Launchpad Bug:           |
-------------------------+-------------------------------------------------
Description changed by daira:

Old description:

> {{{
> zooko at spark ~/research/papers $ tahoe backup . $WRITABLE_DIRCAP:
> Traceback (most recent call last):
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/runner.py",
> line 156, in run
>     rc = runner(sys.argv[1:], install_node_control=install_node_control)
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/runner.py",
> line 141, in runner
>     rc = cli.dispatch[command](so)
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/cli.py", line
> 574, in backup
>     rc = tahoe_backup.backup(options)
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
> line 325, in backup
>     return bu.run()
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
> line 118, in run
>     new_backup_dircap = self.process(options.from_dir)
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
> line 188, in process
>     childcap = self.process(childpath)
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
> line 194, in process
>     childcap, metadata = self.upload(childpath)
>   File
> "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
> line 305, in upload
>     raise HTTPError("Error during file PUT", resp)
> HTTPError: Error during file PUT: 500 Internal Server Error
> "Traceback (most recent call last):
>   File \"/home/zooko/playground/LAFS/pristine/support/lib/python2.7/site-
> packages/foolscap-0.6.4-py2.7.egg/foolscap/call.py\", line 753, in
> receiveClose
>     self.request.fail(f)
>   File \"/home/zooko/playground/LAFS/pristine/support/lib/python2.7/site-
> packages/foolscap-0.6.4-py2.7.egg/foolscap/call.py\", line 95, in fail
>     self.deferred.errback(why)
>   File \"/home/zooko/.local/lib/python2.7/site-
> packages/twisted/internet/defer.py\", line 421, in errback
>     self._startRunCallbacks(fail)
>   File \"/home/zooko/.local/lib/python2.7/site-
> packages/twisted/internet/defer.py\", line 488, in _startRunCallbacks
>     self._runCallbacks()
> --- <exception caught here> ---
>   File \"/home/zooko/.local/lib/python2.7/site-
> packages/twisted/internet/defer.py\", line 575, in _runCallbacks
>     current.result = callback(current.result, *args, **kw)
>   File
> \"/home/zooko/playground/LAFS/pristine/src/allmydata/immutable/upload.py\",
> line 604, in _got_response
>     return self._loop()
>   File
> \"/home/zooko/playground/LAFS/pristine/src/allmydata/immutable/upload.py\",
> line 516, in _loop
>     return self._failed(msg)
>   File
> \"/home/zooko/playground/LAFS/pristine/src/allmydata/immutable/upload.py\",
> line 617, in _failed
>     raise UploadUnhappinessError(msg)
> allmydata.interfaces.UploadUnhappinessError: server selection failed for
> <Tahoe2ServerSelector for upload qd7vq>: shares could be placed or found
> on only 0 server(s). We were asked to place shares on at least 1
> server(s) such that any 1 of them have enough shares to recover the file.
> (placed 0 shares out of 1 total (1 homeless), want to place shares on at
> least 1 servers such that any 1 of them have enough shares to recover the
> file, sent 1 queries to 1 servers, 0 queries placed some shares, 1 placed
> none (of which 0 placed none due to the server being full and 1 placed
> none due to an error)) (last failure (from <ServerTracker for server
> 6dwd2q and SI qd7vq>) was: [Failure instance: Traceback (failure with no
> frames): <class 'foolscap.tokens.RemoteException'>: <RemoteException
> around '[CopiedFailure instance: Traceback from remote host -- Traceback
> (most recent call last):
>   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
> packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/tcp.py\",
> line 287, in connectionLost
>     protocol.connectionLost(reason)
>   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
> packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/web/client.py\",
> line 193, in connectionLost
>     self.factory._disconnectedDeferred.callback(None)
>   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
> packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py\",
> line 368, in callback
>     self._startRunCallbacks(result)
>   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
> packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py\",
> line 464, in _startRunCallbacks
>     self._runCallbacks()
> --- <exception caught here> ---
>   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
> packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py\",
> line 551, in _runCallbacks
>     current.result = callback(current.result, *args, **kw)
>   File \"/usr/local/lib/python2.7/dist-
> packages/txAWS-0.2.1.post4-py2.7.egg/txaws/s3/client.py\", line 153, in
> _parse_get_bucket
>     root = XML(xml_bytes)
>   File \"/usr/local/lib/python2.7/dist-
> packages/txAWS-0.2.1.post4-py2.7.egg/txaws/util.py\", line 61, in XML
>     return parser.close()
>   File \"/usr/lib/python2.7/xml/etree/ElementTree.py\", line 1655, in
> close
>     self._raiseerror(v)
>   File \"/usr/lib/python2.7/xml/etree/ElementTree.py\", line 1507, in
> _raiseerror
>     raise err
> xml.etree.ElementTree.ParseError: no element found: line 1, column 0
> ]'>
> ])
> "
> }}}

New description:

 {{{
 zooko at spark ~/research/papers $ tahoe backup . $WRITABLE_DIRCAP:
 Traceback (most recent call last):
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/runner.py",
 line 156, in run
     rc = runner(sys.argv[1:], install_node_control=install_node_control)
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/runner.py",
 line 141, in runner
     rc = cli.dispatch[command](so)
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/cli.py", line
 574, in backup
     rc = tahoe_backup.backup(options)
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
 line 325, in backup
     return bu.run()
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
 line 118, in run
     new_backup_dircap = self.process(options.from_dir)
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
 line 188, in process
     childcap = self.process(childpath)
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
 line 194, in process
     childcap, metadata = self.upload(childpath)
   File
 "/home/zooko/playground/LAFS/pristine/src/allmydata/scripts/tahoe_backup.py",
 line 305, in upload
     raise HTTPError("Error during file PUT", resp)
 HTTPError: Error during file PUT: 500 Internal Server Error
 "Traceback (most recent call last):
   File \"/home/zooko/playground/LAFS/pristine/support/lib/python2.7/site-
 packages/foolscap-0.6.4-py2.7.egg/foolscap/call.py\", line 753, in
 receiveClose
     self.request.fail(f)
   File \"/home/zooko/playground/LAFS/pristine/support/lib/python2.7/site-
 packages/foolscap-0.6.4-py2.7.egg/foolscap/call.py\", line 95, in fail
     self.deferred.errback(why)
   File \"/home/zooko/.local/lib/python2.7/site-
 packages/twisted/internet/defer.py\", line 421, in errback
     self._startRunCallbacks(fail)
   File \"/home/zooko/.local/lib/python2.7/site-
 packages/twisted/internet/defer.py\", line 488, in _startRunCallbacks
     self._runCallbacks()
 --- <exception caught here> ---
   File \"/home/zooko/.local/lib/python2.7/site-
 packages/twisted/internet/defer.py\", line 575, in _runCallbacks
     current.result = callback(current.result, *args, **kw)
   File
 \"/home/zooko/playground/LAFS/pristine/src/allmydata/immutable/upload.py\",
 line 604, in _got_response
     return self._loop()
   File
 \"/home/zooko/playground/LAFS/pristine/src/allmydata/immutable/upload.py\",
 line 516, in _loop
     return self._failed(msg)
   File
 \"/home/zooko/playground/LAFS/pristine/src/allmydata/immutable/upload.py\",
 line 617, in _failed
     raise UploadUnhappinessError(msg)
 allmydata.interfaces.UploadUnhappinessError: server selection failed for
 <Tahoe2ServerSelector for upload qd7vq>: shares could be placed or found
 on
 only 0 server(s). We were asked to place shares on at least 1 server(s)
 such
 that any 1 of them have enough shares to recover the file. (placed 0
 shares out
 of 1 total (1 homeless), want to place shares on at least 1 servers such
 that
 any 1 of them have enough shares to recover the file, sent 1 queries to 1
 servers, 0 queries placed some shares, 1 placed none (of which 0 placed
 none
 due to the server being full and 1 placed none due to an error)) (last
 failure
 (from <ServerTracker for server 6dwd2q and SI qd7vq>) was:
 [Failure instance: Traceback (failure with no frames): <class
 'foolscap.tokens.RemoteException'>:
 <RemoteException around '[CopiedFailure instance: Traceback from remote
 host -- Traceback (most recent call last):
   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
 packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/tcp.py\",
 line 287, in connectionLost
     protocol.connectionLost(reason)
   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
 packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/web/client.py\", line
 193, in connectionLost
     self.factory._disconnectedDeferred.callback(None)
   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
 packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py\",
 line 368, in callback
     self._startRunCallbacks(result)
   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
 packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py\",
 line 464, in _startRunCallbacks
     self._runCallbacks()
 --- <exception caught here> ---
   File \"/home/customer/LAFS_source/support/lib/python2.7/site-
 packages/Twisted-12.2.0-py2.7-linux-i686.egg/twisted/internet/defer.py\",
 line 551, in _runCallbacks
     current.result = callback(current.result, *args, **kw)
   File \"/usr/local/lib/python2.7/dist-
 packages/txAWS-0.2.1.post4-py2.7.egg/txaws/s3/client.py\", line 153, in
 _parse_get_bucket
     root = XML(xml_bytes)
   File \"/usr/local/lib/python2.7/dist-
 packages/txAWS-0.2.1.post4-py2.7.egg/txaws/util.py\", line 61, in XML
     return parser.close()
   File \"/usr/lib/python2.7/xml/etree/ElementTree.py\", line 1655, in
 close
     self._raiseerror(v)
   File \"/usr/lib/python2.7/xml/etree/ElementTree.py\", line 1507, in
 _raiseerror
     raise err
 xml.etree.ElementTree.ParseError: no element found: line 1, column 0
 ]'>
 ])
 "
 }}}

--

-- 
Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2116#comment:18>
tahoe-lafs <https://tahoe-lafs.org>
secure decentralized storage

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