==> /var/log/maas/clusterd.log <==
2015-05-21 12:01:12-0400 [-] Unhandled error in Deferred:
2015-05-21 12:01:12-0400 [-] Unhandled Error
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 783, in __bootstrap
self.__bootstrap_inner()
File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
self.run()
File "/usr/lib/python2.7/threading.py", line 763, in run
self.__target(*self.__args, **self.__kwargs)
--- <exception caught here> ---
File "/usr/lib/python2.7/dist-packages/twisted/python/threadpool.py", line 191, in _worker
result = context.call(ctx, function, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/twisted/python/context.py", line 118, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "/usr/lib/python2.7/dist-packages/twisted/python/context.py", line 81, in callWithContext
return func(*args,**kw)
File "/usr/lib/python2.7/dist-packages/provisioningserver/utils/twisted.py", line 154, in wrapper
return func(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/provisioningserver/rpc/boot_images.py", line 87, in _run_import
boot_resources.import_images(sources)
File "/usr/lib/python2.7/dist-packages/provisioningserver/import_images/boot_resources.py", line 246, in import_images
image_descriptions = download_all_image_descriptions(sources)
File "/usr/lib/python2.7/dist-packages/provisioningserver/import_images/download_descriptions.py", line 204, in download_all_image_descriptions
source['url'], keyring=source.get('keyring', None))
File "/usr/lib/python2.7/dist-packages/provisioningserver/import_images/download_descriptions.py", line 195, in download_image_descriptions
dumper.sync(reader, rpath)
File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py", line 88, in sync
return self.sync_index(reader, path, data, content)
File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py", line 240, in sync_index
self.sync(reader, path=epath)
File "/usr/lib/python2.7/dist-packages/simplestreams/mirrors/__init__.py", line 83, in sync
data = util.load_content(payload)
File "/usr/lib/python2.7/dist-packages/simplestreams/util.py", line 305, in load_content
return json.loads(content)
File "/usr/lib/python2.7/json/__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 384, in raw_decode
raise ValueError("No JSON object could be decoded")
exceptions.ValueError: No JSON object could be decoded
MAAS cluster that was working just fine, with trusty previously imported. I did this:
1. Changed streasm URL from releases to daily.
2. Selected 15.10 (willy) and tried to import.
3. Region imported the image
4. Cluster stayed in out-of-sync and did not start the import.
5. I had to manually try to improt images from the webui again. After a while cluster started import.
I haven't been able to reproduce this. Are there any special conditions on the cluster server? Are you still seeing the issue? Can we take a look at the server?
I did see similar problems when I was working on the MAAS+Snappy demo, but the disk image was too small. (We seem to handle things *very* poorly when we run out of disk space.)
At this point, I think it looks like the problem is not necessarily in MAAS code. I recommend adding more testing around the python-