Commit d7f3bc57 authored by Julien Muchembled's avatar Julien Muchembled Committed by Kirill Smelkov

Fix a few issues with ZODB5

In the Importer storage backend, the repickler code never really worked with
ZODB 5 (use of protocol > 1), and now the test does not pass anymore.

The other issues caused by ZODB commit 12ee41c47310156027a674932df34b60de86ba36
are fixed:

  TypeError: list indices must be integers, not binary

  ValueError: unsupported pickle protocol: 3

Although not necessary as long as we don't support Python 3,
this commit also replaces `str` by `bytes` in a few places.
parent c11adc1d
...@@ -14,6 +14,8 @@ ...@@ -14,6 +14,8 @@
# directly to a NEO cluster with replicas or several storage nodes. # directly to a NEO cluster with replicas or several storage nodes.
# Importer backend can only be used with a single storage node. # Importer backend can only be used with a single storage node.
# #
# WARNING: Merging several DB only works if they were only used with ZODB < 5.
#
# Here is how to proceed once this file is ready: # Here is how to proceed once this file is ready:
# 1. Restart ZODB clients to connect to new NEO cluster (not started yet). # 1. Restart ZODB clients to connect to new NEO cluster (not started yet).
# 2. Start NEO cluster (use 'neoctl -a <admin> start' command if necessary). # 2. Start NEO cluster (use 'neoctl -a <admin> start' command if necessary).
......
...@@ -44,7 +44,7 @@ def patch(): ...@@ -44,7 +44,7 @@ def patch():
# <patch> # <patch>
serial = self._storage.tpc_finish(transaction, callback) serial = self._storage.tpc_finish(transaction, callback)
if serial is not None: if serial is not None:
assert isinstance(serial, str), repr(serial) assert isinstance(serial, bytes), repr(serial)
for oid_iterator in (self._modified, self._creating): for oid_iterator in (self._modified, self._creating):
for oid in oid_iterator: for oid in oid_iterator:
obj = self._cache.get(oid, None) obj = self._cache.get(oid, None)
......
...@@ -273,7 +273,8 @@ class Application(ThreadedApplication): ...@@ -273,7 +273,8 @@ class Application(ThreadedApplication):
def _askStorageForRead(self, object_id, packet, askStorage=None): def _askStorageForRead(self, object_id, packet, askStorage=None):
cp = self.cp cp = self.cp
pt = self.pt pt = self.pt
if type(object_id) is str: # BBB: On Py2, it can be a subclass of bytes (binary from zodbpickle).
if isinstance(object_id, bytes):
object_id = pt.getPartition(object_id) object_id = pt.getPartition(object_id)
if askStorage is None: if askStorage is None:
askStorage = self._askStorage askStorage = self._askStorage
......
...@@ -117,7 +117,7 @@ class Transaction(object): ...@@ -117,7 +117,7 @@ class Transaction(object):
if uuid_list: if uuid_list:
return return
del self.data_dict[oid] del self.data_dict[oid]
if type(data) is str: if type(data) is bytes:
size = len(data) size = len(data)
self.data_size -= size self.data_size -= size
size += self.cache_size size += self.cache_size
......
...@@ -115,7 +115,7 @@ def add64(packed, offset): ...@@ -115,7 +115,7 @@ def add64(packed, offset):
def dump(s): def dump(s):
"""Dump a binary string in hex.""" """Dump a binary string in hex."""
if s is not None: if s is not None:
if isinstance(s, str): if isinstance(s, bytes):
return b2a_hex(s) return b2a_hex(s)
return repr(s) return repr(s)
......
...@@ -146,7 +146,7 @@ class Repickler(pickle.Unpickler): ...@@ -146,7 +146,7 @@ class Repickler(pickle.Unpickler):
args = self.stack[k+1:] args = self.stack[k+1:]
self.stack[k:] = self._obj(klass, *args), self.stack[k:] = self._obj(klass, *args),
del dispatch[pickle.NEWOBJ] # ZODB has never used protocol 2 del dispatch[pickle.NEWOBJ] # ZODB < 5 has never used protocol 2
@_noload @_noload
def find_class(self, args): def find_class(self, args):
...@@ -221,7 +221,7 @@ class ZODB(object): ...@@ -221,7 +221,7 @@ class ZODB(object):
oid = u64(obj[0]) oid = u64(obj[0])
# If this oid pointed to a mount point, drop 2nd item because # If this oid pointed to a mount point, drop 2nd item because
# it's probably different than the real class of the new oid. # it's probably different than the real class of the new oid.
elif isinstance(obj, str): elif isinstance(obj, bytes):
oid = u64(obj) oid = u64(obj)
else: else:
raise NotImplementedError( raise NotImplementedError(
...@@ -232,7 +232,7 @@ class ZODB(object): ...@@ -232,7 +232,7 @@ class ZODB(object):
if not self.shift_oid: if not self.shift_oid:
return obj # common case for root db return obj # common case for root db
oid = p64(oid + self.shift_oid) oid = p64(oid + self.shift_oid)
return oid if isinstance(obj, str) else (oid, obj[1]) return oid if isinstance(obj, bytes) else (oid, obj[1])
self.repickle = Repickler(map_oid) self.repickle = Repickler(map_oid)
return self.repickle(data) return self.repickle(data)
......
...@@ -29,7 +29,10 @@ import MySQLdb ...@@ -29,7 +29,10 @@ import MySQLdb
import transaction import transaction
from cStringIO import StringIO from cStringIO import StringIO
from cPickle import Unpickler try:
from ZODB._compat import Unpickler
except ImportError:
from cPickle import Unpickler
from functools import wraps from functools import wraps
from inspect import isclass from inspect import isclass
from .mock import Mock from .mock import Mock
......
...@@ -19,12 +19,14 @@ from cStringIO import StringIO ...@@ -19,12 +19,14 @@ from cStringIO import StringIO
from itertools import islice, izip_longest from itertools import islice, izip_longest
import os, shutil, unittest import os, shutil, unittest
import neo, transaction, ZODB import neo, transaction, ZODB
from neo.client.exception import NEOPrimaryMasterLost
from neo.lib import logging from neo.lib import logging
from neo.lib.util import u64 from neo.lib.util import u64
from neo.storage.database.importer import Repickler from neo.storage.database.importer import Repickler
from ..fs2zodb import Inode from ..fs2zodb import Inode
from .. import getTempDirectory from .. import expectedFailure, getTempDirectory
from . import NEOCluster, NEOThreadedTest from . import NEOCluster, NEOThreadedTest
from ZODB import serialize
from ZODB.FileStorage import FileStorage from ZODB.FileStorage import FileStorage
...@@ -232,6 +234,10 @@ class ImporterTests(NEOThreadedTest): ...@@ -232,6 +234,10 @@ class ImporterTests(NEOThreadedTest):
for x, y, z in os.walk(src_root))) for x, y, z in os.walk(src_root)))
t.commit() t.commit()
if getattr(serialize, '_protocol', 1) > 1:
# XXX: With ZODB5, we should at least keep a working test that does not
# merge several DB.
test = expectedFailure(NEOPrimaryMasterLost)(test)
if __name__ == "__main__": if __name__ == "__main__":
unittest.main() unittest.main()
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