From: David Stainton Date: Thu, 2 Jul 2015 22:50:49 +0000 (-0700) Subject: Fix version deletion propagation and test X-Git-Url: https://git.rkrishnan.org/%5B/%5D%20/uri/reliability?a=commitdiff_plain;h=8a5c01cdabebf4741ffb2652d0452794ccb2844f;p=tahoe-lafs%2Ftahoe-lafs.git Fix version deletion propagation and test --- diff --git a/src/allmydata/backupdb.py b/src/allmydata/backupdb.py index 18290213..cf663899 100644 --- a/src/allmydata/backupdb.py +++ b/src/allmydata/backupdb.py @@ -417,3 +417,24 @@ class BackupDB_v3(BackupDB_v2): return None else: return row[0] + + def did_upload_file(self, filecap, path, version, mtime, ctime, size): + now = time.time() + fileid = self.get_or_allocate_fileid_for_cap(filecap) + try: + self.cursor.execute("INSERT INTO last_upload VALUES (?,?,?)", + (fileid, now, now)) + except (self.sqlite_module.IntegrityError, self.sqlite_module.OperationalError): + self.cursor.execute("UPDATE last_upload" + " SET last_uploaded=?, last_checked=?" + " WHERE fileid=?", + (now, now, fileid)) + try: + self.cursor.execute("INSERT INTO local_files VALUES (?,?,?,?,?,?)", + (path, size, mtime, ctime, fileid, version)) + except (self.sqlite_module.IntegrityError, self.sqlite_module.OperationalError): + self.cursor.execute("UPDATE local_files" + " SET size=?, mtime=?, ctime=?, fileid=?, version=?" + " WHERE path=?", + (size, mtime, ctime, fileid, path, version)) + self.connection.commit() diff --git a/src/allmydata/frontends/magic_folder.py b/src/allmydata/frontends/magic_folder.py index 0ecc5489..3d005fb7 100644 --- a/src/allmydata/frontends/magic_folder.py +++ b/src/allmydata/frontends/magic_folder.py @@ -46,7 +46,7 @@ class MagicFolder(service.MultiService): service.MultiService.__init__(self) self._stopped = False - self._remote_scan_delay = 3 # XXX + self._remote_scan_delay = 10 # XXX self._local_dir = abspath_expanduser_unicode(local_dir) self._upload_lazy_tail = defer.succeed(None) self._upload_pending = set() @@ -122,11 +122,18 @@ class MagicFolder(service.MultiService): We check the remote metadata version against our magic-folder db version number; latest version wins. """ - # XXX todo - return True + v = self._db.get_local_file_version(path) + if v is None: + return True + else: + if v < remote_version: + return True + else: + return False def _scan_remote(self, nickname, dirnode): listing_d = dirnode.list() + self._download_scan_batch = {} def scan_listing(listing_map): for name in listing_map.keys(): file_node, metadata = listing_map[name] @@ -150,11 +157,12 @@ class MagicFolder(service.MultiService): d = defer.succeed(None) collective_dirmap, others_list = result for dir_name in others_list: + # XXX this is broken d.addCallback(lambda x: self._scan_remote(dir_name, collective_dirmap[dir_name][0])) + collective_dirmap_d.addCallback(self._filter_scan_batch) + collective_dirmap_d.addCallback(self._add_batch_to_download_queue) return d collective_dirmap_d.addCallback(scan_collective) - collective_dirmap_d.addCallback(self._filter_scan_batch) - collective_dirmap_d.addCallback(self._add_batch_to_download_queue) return collective_dirmap_d def _add_batch_to_download_queue(self, result): @@ -165,29 +173,26 @@ class MagicFolder(service.MultiService): extension = [] for name in self._download_scan_batch.keys(): if name in self._download_pending: - # XXX continue - if len(self._download_scan_batch[name]) == 1: - filename, file_node, metadata = self._download_scan_batch[name][0] + for item in self._download_scan_batch[name]: + (nickname, file_node, metadata) = item if self._should_download(name, metadata['version']): extension += [(name, file_node, metadata)] - else: - for item in self._download_scan_batch: - nickname, file_node, metadata = item - if self._should_download(name, metadata['version']): - extension += [(name, file_node, metadata)] return extension def _download_file(self, name, file_node): - print "_download_file" d = file_node.download_best_version() def succeeded(res): d.addCallback(lambda result: self._write_downloaded_file(name, result)) self._stats_provider.count('magic_folder.objects_downloaded', +1) + return None def failed(f): - pass + return failure.Failure("download failed") + def remove_from_pending(result): + self._download_pending = self._download_pending.difference(set([name])) d.addCallbacks(succeeded, failed) d.addBoth(self._do_download_callback) + d.addBoth(remove_from_pending) return d def _write_downloaded_file(self, name, file_contents): @@ -256,18 +261,8 @@ class MagicFolder(service.MultiService): self.is_ready = True self._turn_upload_deque() self._turn_download_deque() - self._scan_remote_collective() - - def _append_to_download_deque(self, name, file_node): - if name in self._download_pending: - return - self._download_deque.append(file_node) # XXX - self._download_pending.add(name) - self._stats_provider.count('magic_folder.objects_queued_for_download', 1) - reactor.callLater(0, self._turn_download_deque) def _turn_download_deque(self): - print "_turn_download_deque" if self._stopped: return try: @@ -275,7 +270,8 @@ class MagicFolder(service.MultiService): except IndexError: self._log("magic folder upload deque is now empty") self._download_lazy_tail = defer.succeed(None) - self._download_lazy_tail.addCallback(lambda ign: task.deferLater(reactor, self._remote_scan_delay, self._turn_download_deque)) + self._download_lazy_tail.addCallback(lambda ign: task.deferLater(reactor, self._remote_scan_delay, self._scan_remote_collective)) + self._download_lazy_tail.addCallback(lambda ign: task.deferLater(reactor, 0, self._turn_download_deque)) return self._download_lazy_tail.addCallback(lambda ign: task.deferLater(reactor, 0, self._download_file, file_path, file_node)) self._download_lazy_tail.addCallback(lambda ign: task.deferLater(reactor, self._remote_scan_delay, self._turn_download_deque)) @@ -333,18 +329,11 @@ class MagicFolder(service.MultiService): def get_metadata(result): try: - metadata_d = self._parent.get_metadata_for(name) + metadata_d = self._upload_dirnode.get_metadata_for(name) except KeyError: return failure.Failure() return metadata_d - def get_local_version(path): - v = self._db.get_local_file_version(path) - if v is None: - return 1 - else: - return v - if not os.path.exists(path): self._log("drop-upload: notified object %r disappeared " "(this is normal for temporary objects)" % (path,)) @@ -353,10 +342,12 @@ class MagicFolder(service.MultiService): if self._db.check_file_db_exists(path): d2.addCallback(get_metadata) def set_deleted(metadata): - metadata['version'] = get_local_version(path) + 1 + current_version = self._db.get_local_file_version(path) + 1 + print "current version ", current_version + metadata['version'] = current_version metadata['deleted'] = True emptyUploadable = Data("", self._convergence) - return self._parent.add_file(name, emptyUploadable, overwrite=True, metadata=metadata) + return self._upload_dirnode.add_file(name, emptyUploadable, overwrite=True, metadata=metadata) d2.addCallback(set_deleted) d2.addCallback(lambda x: Exception("file does not exist")) return d2 @@ -365,7 +356,11 @@ class MagicFolder(service.MultiService): if os.path.isdir(path): return _add_dir(name) elif os.path.isfile(path): - version = get_local_version(path) + version = self._db.get_local_file_version(path) + if version is None: + version = 1 + else: + version += 1 d2 = _add_file(name, version) def add_db_entry(filenode): filecap = filenode.get_uri() @@ -373,7 +368,7 @@ class MagicFolder(service.MultiService): size = s[stat.ST_SIZE] ctime = s[stat.ST_CTIME] mtime = s[stat.ST_MTIME] - self._db.did_upload_file(filecap, path, mtime, ctime, size) + self._db.did_upload_file(filecap, path, version, mtime, ctime, size) self._stats_provider.count('magic_folder.files_uploaded', 1) d2.addCallback(add_db_entry) return d2 diff --git a/src/allmydata/test/test_magic_folder.py b/src/allmydata/test/test_magic_folder.py index 34087a28..3c848e80 100644 --- a/src/allmydata/test/test_magic_folder.py +++ b/src/allmydata/test/test_magic_folder.py @@ -322,35 +322,52 @@ class MagicFolderTestMixin(MagicFolderCLITestMixin, ShouldFailMixin, ReallyEqual self.alice_collective_dir, self.alice_upload_dircap, self.alice_magicfolder, self.bob_collective_dircap, self.bob_upload_dircap, self.bob_magicfolder = result d.addCallback(get_results) - def write_a_file(result): - file_path = os.path.join(self.alice_magicfolder._local_dir, "file1") - fileutil.write(file_path, "meow, meow meow. meow? meow meow! meow.") + def Alice_write_a_file(result): + print "Alice writes a file\n" + self.file_path = os.path.join(self.alice_magicfolder._local_dir, "file1") + fileutil.write(self.file_path, "meow, meow meow. meow? meow meow! meow.") # XXX fix me --> self.notify(file_path, self.inotify.IN_CLOSE_WRITE) - d.addCallback(write_a_file) + d.addCallback(Alice_write_a_file) - def wait_for_upload(result): + def Alice_wait_for_upload(result): + print "Alice waits for an upload\n" d2 = defer.Deferred() self.alice_magicfolder.set_processed_callback(d2.callback, ignore_count=0) return d2 - d.addCallback(wait_for_upload) - def prepare_for_alice_stats(result): + d.addCallback(Alice_wait_for_upload) + def Alice_prepare_for_alice_stats(result): self.stats_provider = self.alice_magicfolder._client.stats_provider - d.addCallback(prepare_for_alice_stats) + d.addCallback(Alice_prepare_for_alice_stats) d.addCallback(lambda ign: self.failUnlessReallyEqual(self._get_count('magic_folder.objects_succeeded'), 1)) d.addCallback(lambda ign: self.failUnlessReallyEqual(self._get_count('magic_folder.files_uploaded'), 1)) d.addCallback(lambda ign: self.failUnlessReallyEqual(self._get_count('magic_folder.objects_queued'), 0)) d.addCallback(lambda ign: self.failUnlessReallyEqual(self._get_count('magic_folder.directories_created'), 0)) - def wait_for_download(result): + def Bob_wait_for_download(result): + print "Bob waits for a download\n" d2 = defer.Deferred() self.bob_magicfolder.set_download_callback(d2.callback, ignore_count=0) return d2 - d.addCallback(wait_for_download) - def prepare_for_bob_stats(result): + d.addCallback(Bob_wait_for_download) + def Bob_prepare_for_stats(result): self.stats_provider = self.bob_magicfolder._client.stats_provider - d.addCallback(prepare_for_bob_stats) + d.addCallback(Bob_prepare_for_stats) d.addCallback(lambda ign: self.failUnlessReallyEqual(self._get_count('magic_folder.objects_downloaded'), 1)) + # test deletion of file behavior + def Alice_delete_file(result): + print "Alice deletes the file!\n" + os.unlink(self.file_path) + self.notify(self.file_path, self.inotify.IN_DELETE) + return None + d.addCallback(Alice_delete_file) + d.addCallback(Alice_wait_for_upload) + d.addCallback(Alice_prepare_for_alice_stats) + d.addCallback(lambda ign: self.failUnlessReallyEqual(self._get_count('magic_folder.objects_succeeded'), 2)) # XXX ? + d.addCallback(Bob_wait_for_download) + d.addCallback(Bob_prepare_for_stats) + d.addCallback(lambda ign: self.failUnlessReallyEqual(self._get_count('magic_folder.objects_downloaded'), 2)) # XXX ? + def cleanup_Alice_and_Bob(result): d = defer.succeed(None) d.addCallback(lambda ign: self.alice_magicfolder.finish(for_tests=True))