Hello All,

I am using s3ql on Ubuntu Server (14.04 LTS), installed from s3ql repo.
My server is connected to an Hubic storage, and use a Swift connector 
provided by Hubic2swiftgate.

Just retrieved these errors from the log:

Mar 14 17:55:51 ks6 s3ql: Uncaught top-level exception:
Mar 14 17:55:51 ks6 s3ql: Traceback (most recent call last):
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/swift.py", 
line 387, in delete
Mar 14 17:55:51 ks6 s3ql:     resp = self._do_request('DELETE', '/%s%s' % 
(self.prefix, key))
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/swift.py", 
line 251, in _do_request
Mar 14 17:55:51 ks6 s3ql:     raise HTTPError(resp.status, resp.reason, 
resp.headers)
Mar 14 17:55:51 ks6 s3ql: s3ql.backends.s3c.HTTPError: 404 Not Found
Mar 14 17:55:51 ks6 s3ql: 
Mar 14 17:55:51 ks6 s3ql: During handling of the above exception, another 
exception occurred:
Mar 14 17:55:51 ks6 s3ql: 
Mar 14 17:55:51 ks6 s3ql: Traceback (most recent call last):
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/mount.py", line 64, in 
run_with_except_hook
Mar 14 17:55:51 ks6 s3ql:     run_old(*args, **kw)
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/python3.4/threading.py", line 
868, in run
Mar 14 17:55:51 ks6 s3ql:     self._target(*self._args, **self._kwargs)
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/block_cache.py", line 
688, in _removal_loop
Mar 14 17:55:51 ks6 s3ql:     backend.delete_multi(['s3ql_data_%d' % i for 
i in ids])
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/comprenc.py", 
line 274, in delete_multi
Mar 14 17:55:51 ks6 s3ql:     return self.backend.delete_multi(keys, 
force=force)
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/common.py", 
line 407, in delete_multi
Mar 14 17:55:51 ks6 s3ql:     self.delete(key, force=force)
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/common.py", 
line 52, in wrapped
Mar 14 17:55:51 ks6 s3ql:     return method(*a, **kw)
Mar 14 17:55:51 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/swift.py", 
line 391, in delete
Mar 14 17:55:51 ks6 s3ql:     raise NoSuchObject(key)
Mar 14 17:55:51 ks6 s3ql: s3ql.backends.common.NoSuchObject: Backend does 
not have anything stored under key 's3ql_data_70682'
Mar 14 17:55:53 ks6 s3ql: Encountered ConnectionTimedOut exception 
(send/recv timeout exceeded), retrying call to Backend.delete for the 4-th 
time...
Mar 14 17:55:53 ks6 mount.s3ql[23132:Thread-21] 
s3ql.backends.common.wrapped: Encountered ConnectionTimedOut exception 
(send/recv timeout exceeded), retrying call to Backend.delete for the 4-th 
time...
Mar 14 17:56:00 ks6 s3ql: Unhandled top-level exception during shutdown 
(will not be re-raised)
Mar 14 17:56:00 ks6 mount.s3ql[23132:Thread-21] s3ql.mount.exchook: 
Unhandled top-level exception during shutdown (will not be re-raised)
Mar 14 17:56:00 ks6 mount.s3ql[23132:Thread-21] root.excepthook: Uncaught 
top-level exception:#012Traceback (most recent call last):#012  File 
"/usr/lib/s3ql/s3ql/backends/swift.py", line 387, in delete#012    resp = 
self._do_request('DELETE', '/%s%s' % (self.prefix, key))#012  File 
"/usr/lib/s3ql/s3ql/backends/swift.py", line 251, in _do_request#012   
 raise HTTPError(resp.status, resp.reason, 
resp.headers)#012s3ql.backends.s3c.HTTPError: 404 Not Found#012#012During 
handling of the above exception, another exception 
occurred:#012#012Traceback (most recent call last):#012  File 
"/usr/lib/s3ql/s3ql/mount.py", line 64, in run_with_except_hook#012   
 run_old(*args, **kw)#012  File "/usr/lib/python3.4/threading.py", line 
868, in run#012    self._target(*self._args, **self._kwargs)#012  File 
"/usr/lib/s3ql/s3ql/block_cache.py", line 688, in _removal_loop#012   
 backend.delete_multi(['s3ql_data_%d' % i for i in ids])#012  File 
"/usr/lib/s3ql/s3ql/backends/comprenc.py", line 274, in delete_multi#012   
 return self.backend.delete_multi(keys, force=force)#012  File 
"/usr/lib/s3ql/s3ql/backends/common.py", line 407, in delete_multi#012   
 self.delete(key, force=force)#012  File 
"/usr/lib/s3ql/s3ql/backends/common.py", line 52, in wrapped#012    return 
method(*a, **kw)#012  File "/usr/lib/s3ql/s3ql/backends/swift.py", line 
391, in delete#012    raise 
NoSuchObject(key)#012s3ql.backends.common.NoSuchObject: Backend does not 
have anything stored under key 's3ql_data_2838'
Mar 14 17:56:00 ks6 s3ql: Uncaught top-level exception:
Mar 14 17:56:00 ks6 s3ql: Traceback (most recent call last):
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/swift.py", 
line 387, in delete
Mar 14 17:56:00 ks6 s3ql:     resp = self._do_request('DELETE', '/%s%s' % 
(self.prefix, key))
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/swift.py", 
line 251, in _do_request
Mar 14 17:56:00 ks6 s3ql:     raise HTTPError(resp.status, resp.reason, 
resp.headers)
Mar 14 17:56:00 ks6 s3ql: s3ql.backends.s3c.HTTPError: 404 Not Found
Mar 14 17:56:00 ks6 s3ql: 
Mar 14 17:56:00 ks6 s3ql: During handling of the above exception, another 
exception occurred:
Mar 14 17:56:00 ks6 s3ql: 
Mar 14 17:56:00 ks6 s3ql: Traceback (most recent call last):
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/mount.py", line 64, in 
run_with_except_hook
Mar 14 17:56:00 ks6 s3ql:     run_old(*args, **kw)
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/python3.4/threading.py", line 
868, in run
Mar 14 17:56:00 ks6 s3ql:     self._target(*self._args, **self._kwargs)
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/block_cache.py", line 
688, in _removal_loop
Mar 14 17:56:00 ks6 s3ql:     backend.delete_multi(['s3ql_data_%d' % i for 
i in ids])
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/comprenc.py", 
line 274, in delete_multi
Mar 14 17:56:00 ks6 s3ql:     return self.backend.delete_multi(keys, 
force=force)
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/common.py", 
line 407, in delete_multi
Mar 14 17:56:00 ks6 s3ql:     self.delete(key, force=force)
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/common.py", 
line 52, in wrapped
Mar 14 17:56:00 ks6 s3ql:     return method(*a, **kw)
Mar 14 17:56:00 ks6 s3ql:   File "/usr/lib/s3ql/s3ql/backends/swift.py", 
line 391, in delete
Mar 14 17:56:00 ks6 s3ql:     raise NoSuchObject(key)
Mar 14 17:56:00 ks6 s3ql: s3ql.backends.common.NoSuchObject: Backend does 
not have anything stored under key 's3ql_data_2838'
Mar 14 17:56:00 ks6 mount.s3ql[23132:MainThread] s3ql.mount.unmount: 
Unmounting file system...
Mar 14 17:56:00 ks6 s3ql: Unmounting file system...
Mar 14 17:56:00 ks6 kernel: [26864.561997] init: mount-s3ql main process 
(23106) terminated with status 1

Any idea about this error ? Does the 404 error means there is no related 
object on the remote side ? Does this means my filesystem is corrupted ?

Best Regards,
Arnaud

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