From: Daira Hopwood Date: Fri, 10 May 2013 22:25:05 +0000 (+0100) Subject: Make the cloud backend report corrupted shares correctly. fixes #1566 X-Git-Url: https://git.rkrishnan.org/%5B/%5D%20/uri/flags/-?a=commitdiff_plain;h=2d48210168e9cc8ead6f7a03d2f871e3cdae9fcd;p=tahoe-lafs%2Ftahoe-lafs.git Make the cloud backend report corrupted shares correctly. fixes #1566 Signed-off-by: Daira Hopwood --- diff --git a/src/allmydata/storage/backends/cloud/cloud_backend.py b/src/allmydata/storage/backends/cloud/cloud_backend.py index efe4e627..247aa228 100644 --- a/src/allmydata/storage/backends/cloud/cloud_backend.py +++ b/src/allmydata/storage/backends/cloud/cloud_backend.py @@ -7,11 +7,10 @@ from zope.interface import implements from allmydata.interfaces import IStorageBackend, IShareSet from allmydata.node import InvalidValueError -from allmydata.util.deferredutil import gatherResults from allmydata.util.assertutil import _assert from allmydata.util.dictutil import NumDict from allmydata.util.encodingutil import quote_output -from allmydata.storage.common import si_a2b, NUM_RE +from allmydata.storage.common import si_a2b, NUM_RE, CorruptStoredShareError from allmydata.storage.bucket import BucketWriter from allmydata.storage.backends.base import Backend, ShareSet from allmydata.storage.backends.cloud.immutable import ImmutableCloudShareForReading, ImmutableCloudShareForWriting @@ -129,11 +128,18 @@ class CloudShareSet(ShareSet): # If they don't, that will cause an error on reading. shnum_to_total_size.add_num(int(shnumstr), int(item.size)) - return gatherResults([get_cloud_share(self._container, si, shnum, total_size) - for (shnum, total_size) in shnum_to_total_size.items_sorted_by_key()]) + return defer.DeferredList([get_cloud_share(self._container, si, shnum, total_size) + for (shnum, total_size) in shnum_to_total_size.items_sorted_by_key()], + consumeErrors=True) d.addCallback(_get_shares) - # TODO: return information about corrupt shares. - d.addCallback(lambda shares: (shares, set()) ) + def _got_list(outcomes): + # DeferredList gives us a list of (success, result) pairs, which we + # convert to a pair (list of shares, set of corrupt shnums). + shares = [share for (success, share) in outcomes if success] + corrupted = set([f.value.shnum for (success, f) in outcomes + if not success and isinstance(f.value, CorruptStoredShareError)]) + return (shares, corrupted) + d.addCallback(_got_list) return d def _locked_get_share(self, shnum): diff --git a/src/allmydata/test/test_storage.py b/src/allmydata/test/test_storage.py index a64585bb..2a91d839 100644 --- a/src/allmydata/test/test_storage.py +++ b/src/allmydata/test/test_storage.py @@ -2757,10 +2757,6 @@ class ServerWithMockCloudBackend(WithMockCloudBackend, ServerTest, unittest.Test # This causes ContainerListMixin to be exercised. self.patch(mock_cloud, 'MAX_KEYS', 2) - def test_bad_container_version(self): - return ServerTest.test_bad_container_version(self) - test_bad_container_version.todo = "The cloud backend hasn't been modified to fix ticket #1566." - def _describe_level(self, level): return getattr(LogEvent, 'LEVELMAP', {}).get(level, str(level)) @@ -3139,10 +3135,6 @@ class MutableServerWithMockCloudBackend(WithMockCloudBackend, MutableServerTest, # This causes ContainerListMixin to be exercised. self.patch(mock_cloud, 'MAX_KEYS', 2) - def test_bad_magic(self): - return MutableServerTest.test_bad_magic(self) - test_bad_magic.todo = "The cloud backend hasn't been modified to fix ticket #1566." - class MutableServerWithDiskBackend(WithDiskBackend, MutableServerTest, unittest.TestCase): # There are no mutable tests specific to a disk backend.