Jan 31 13:04:36 storage0 python3 [2434334]: 2019-01-31 13:04:36 [2434334] [ERROR] canceling statement due to statement timeout
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/flask/app.py", line 1612, in full_dispatch_request
    rv = self.dispatch_request ()
  File "/usr/lib/python3/dist-packages/flask/app.py", line 1598, in dispatch_request
    return self.view_functions [rule.endpoint] (**req.view_args)
  File "/usr/lib/python3/dist-packages/swh/storage/api/server.py", line 147, in revision_get
    return encode_data (get_storage ().revision_get (**decode_request (request)))
  File "/usr/lib/python3/dist-packages/swh/core/api.py", line 176, in encode_data_server
    msgpack_dumps (data),
  File "/usr/lib/python3/dist-packages/swh/core/serializers.py", line 170, in msgpack_dumps
    return msgpack.packb (data, use_bin_type=True, default=encode_types)
  File "/usr/lib/python3/dist-packages/msgpack/__init__.py", line 47, in packb
    return Packer (**kwargs).pack (o)
  File "msgpack/_packer.pyx", line 231, in msgpack._packer.Packer.pack (msgpack/_packer.cpp:3661)
  File "msgpack/_packer.pyx", line 233, in msgpack._packer.Packer.pack (msgpack/_packer.cpp:3503)
  File "msgpack/_packer.pyx", line 224, in msgpack._packer.Packer._pack (msgpack/_packer.cpp:3312)
  File "/usr/lib/python3/dist-packages/swh/core/serializers.py", line 154, in encode_types
    return list (obj)
  File "/usr/lib/python3/dist-packages/swh/storage/common.py", line 78, in _meth
    yield from meth (self, *args, db=db, cur=cur, **kwargs)
  File "/usr/lib/python3/dist-packages/swh/storage/storage.py", line 622, in revision_get
    for line in db.revision_get_from_list (revisions, cur):
  File "/usr/lib/python3/dist-packages/swh/storage/db.py", line 667, in revision_get_from_list
    ((id,) for id in revisions))
  File "/usr/lib/python3/dist-packages/swh/storage/db.py", line 77, in execute_values_to_bytes
    for line in execute_values_generator (*args, **kwargs):
  File "/usr/lib/python3/dist-packages/swh/storage/db_utils.py", line 122, in execute_values_generator
    cur.execute (b''.join (parts))
psycopg2.extensions.QueryCanceledError: canceling statement due to statement timeout
Jan 31 13:04:36 storage0 python3 [2434334]: 2019-01-31 13:04:36 [2434334] [INFO] b'' - - [31/Jan/2019:13:04:36 +0000] "POST /revision HTTP/1.0" 400 210 "-" "python-requests/2.12.4"