X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/1326b8b5f41dfb322352362544d321d184798c7e..da96cadf6038f819d4bb30b30de78449f958a9f5:/sdk/python/arvados.py?ds=sidebyside diff --git a/sdk/python/arvados.py b/sdk/python/arvados.py index 91e00630c9..f4fe070786 100644 --- a/sdk/python/arvados.py +++ b/sdk/python/arvados.py @@ -24,7 +24,7 @@ from apiclient.discovery import build if 'ARVADOS_DEBUG' in os.environ: logging.basicConfig(level=logging.DEBUG) -class CredentialsFromEnv: +class CredentialsFromEnv(object): @staticmethod def http_request(self, uri, **kwargs): from httplib import BadStatusLine @@ -93,10 +93,13 @@ def current_job(): _current_job = t return t +def getjobparam(*args): + return current_job()['script_parameters'].get(*args) + def api(): return service -class JobTask: +class JobTask(object): def __init__(self, parameters=dict(), runtime_constraints=dict()): print "init jobtask %s %s" % (parameters, runtime_constraints) @@ -149,16 +152,29 @@ class job_setup: exit(0) class util: + @staticmethod + def clear_tmpdir(path=None): + """ + Ensure the given directory (or TASK_TMPDIR if none given) + exists and is empty. + """ + if path == None: + path = current_task().tmpdir + if os.path.exists(path): + p = subprocess.Popen(['rm', '-rf', path]) + stdout, stderr = p.communicate(None) + if p.returncode != 0: + raise Exception('rm -rf %s: %s' % (path, stderr)) + os.mkdir(path) + @staticmethod def run_command(execargs, **kwargs): - if 'stdin' not in kwargs: - kwargs['stdin'] = subprocess.PIPE - if 'stdout' not in kwargs: - kwargs['stdout'] = subprocess.PIPE - if 'stderr' not in kwargs: - kwargs['stderr'] = subprocess.PIPE - p = subprocess.Popen(execargs, close_fds=True, shell=False, - **kwargs) + kwargs.setdefault('stdin', subprocess.PIPE) + kwargs.setdefault('stdout', subprocess.PIPE) + kwargs.setdefault('stderr', sys.stderr) + kwargs.setdefault('close_fds', True) + kwargs.setdefault('shell', False) + p = subprocess.Popen(execargs, **kwargs) stdoutdata, stderrdata = p.communicate(None) if p.returncode != 0: raise Exception("run_command %s exit %d:\n%s" % @@ -322,6 +338,11 @@ class util: collection -- collection locator path -- where to extract: absolute, or relative to job tmp """ + matches = re.search(r'^([0-9a-f]+)(\+[\w@]+)*$', collection) + if matches: + collection_hash = matches.group(1) + else: + collection_hash = hashlib.md5(collection).hexdigest() if not re.search('^/', path): path = os.path.join(current_job().tmpdir, path) lockfile = open(path + '.lock', 'w') @@ -332,7 +353,7 @@ class util: os.mkdir(path) already_have_it = False try: - if os.readlink(os.path.join(path, '.locator')) == collection: + if os.readlink(os.path.join(path, '.locator')) == collection_hash: already_have_it = True except OSError: pass @@ -364,7 +385,7 @@ class util: outfile.close() if len(files_got) < len(files): raise Exception("Wanted files %s but only got %s from %s" % (files, files_got, map(lambda z: z.name(), list(CollectionReader(collection).all_files())))) - os.symlink(collection, os.path.join(path, '.locator')) + os.symlink(collection_hash, os.path.join(path, '.locator')) lockfile.close() return path @@ -432,7 +453,7 @@ class util: allfiles += [ent_base] return allfiles -class StreamFileReader: +class StreamFileReader(object): def __init__(self, stream, pos, size, name): self._stream = stream self._pos = pos @@ -504,7 +525,7 @@ class StreamFileReader: return string.join(self._stream.tokens_for_range(self._pos, self._size), " ") + "\n" -class StreamReader: +class StreamReader(object): def __init__(self, tokens): self._tokens = tokens self._current_datablock_data = None @@ -616,7 +637,7 @@ class StreamReader: self._pos += len(data) return data -class CollectionReader: +class CollectionReader(object): def __init__(self, manifest_locator_or_text): if re.search(r'^\S+( [a-f0-9]{32,}(\+\S+)*)+( \d+:\d+:\S+)+\n', manifest_locator_or_text): self._manifest_text = manifest_locator_or_text @@ -653,7 +674,7 @@ class CollectionReader: self._populate() return self._manifest_text -class CollectionWriter: +class CollectionWriter(object): KEEP_BLOCK_SIZE = 2**26 def __init__(self): self._data_buffer = [] @@ -674,7 +695,7 @@ class CollectionWriter: self.start_new_stream(stream_name) todo = [] if max_manifest_depth == 0: - dirents = util.listdir_recursive(path) + dirents = sorted(util.listdir_recursive(path)) else: dirents = sorted(os.listdir(path)) for dirent in dirents: @@ -695,6 +716,10 @@ class CollectionWriter: map(lambda x: self.write_directory_tree(*x), todo) def write(self, newdata): + if hasattr(newdata, '__iter__'): + for s in newdata: + self.write(s) + return self._data_buffer += [newdata] self._data_buffer_len += len(newdata) self._current_stream_length += len(newdata) @@ -731,7 +756,7 @@ class CollectionWriter: def set_current_stream_name(self, newstreamname): if re.search(r'[ \t\n]', newstreamname): raise AssertionError("Manifest stream names cannot contain whitespace") - self._current_stream_name = newstreamname + self._current_stream_name = '.' if newstreamname=='' else newstreamname def current_stream_name(self): return self._current_stream_name def finish_current_stream(self): @@ -781,14 +806,102 @@ class Keep: return global_client_object @staticmethod - def get(locator): - return Keep.global_client_object().get(locator) + def get(locator, **kwargs): + return Keep.global_client_object().get(locator, **kwargs) @staticmethod - def put(data): - return Keep.global_client_object().put(data) + def put(data, **kwargs): + return Keep.global_client_object().put(data, **kwargs) + +class KeepClient(object): + + class ThreadLimiter(object): + """ + Limit the number of threads running at a given time to + {desired successes} minus {successes reported}. When successes + reported == desired, wake up the remaining threads and tell + them to quit. + + Should be used in a "with" block. + """ + def __init__(self, todo): + self._todo = todo + self._done = 0 + self._todo_lock = threading.Semaphore(todo) + self._done_lock = threading.Lock() + def __enter__(self): + self._todo_lock.acquire() + return self + def __exit__(self, type, value, traceback): + self._todo_lock.release() + def shall_i_proceed(self): + """ + Return true if the current thread should do stuff. Return + false if the current thread should just stop. + """ + with self._done_lock: + return (self._done < self._todo) + def increment_done(self): + """ + Report that the current thread was successful. + """ + with self._done_lock: + self._done += 1 + def done(self): + """ + Return how many successes were reported. + """ + with self._done_lock: + return self._done + + class KeepWriterThread(threading.Thread): + """ + Write a blob of data to the given Keep server. Call + increment_done() of the given ThreadLimiter if the write + succeeds. + """ + def __init__(self, **kwargs): + super(KeepClient.KeepWriterThread, self).__init__() + self.args = kwargs + def run(self): + with self.args['thread_limiter'] as limiter: + if not limiter.shall_i_proceed(): + # My turn arrived, but the job has been done without + # me. + return + logging.debug("KeepWriterThread %s proceeding %s %s" % + (str(threading.current_thread()), + self.args['data_hash'], + self.args['service_root'])) + h = httplib2.Http() + url = self.args['service_root'] + self.args['data_hash'] + api_token = os.environ['ARVADOS_API_TOKEN'] + headers = {'Authorization': "OAuth2 %s" % api_token} + try: + resp, content = h.request(url.encode('utf-8'), 'PUT', + headers=headers, + body=self.args['data']) + if (resp['status'] == '401' and + re.match(r'Timestamp verification failed', content)): + body = KeepClient.sign_for_old_server( + self.args['data_hash'], + self.args['data']) + h = httplib2.Http() + resp, content = h.request(url.encode('utf-8'), 'PUT', + headers=headers, + body=body) + if re.match(r'^2\d\d$', resp['status']): + logging.debug("KeepWriterThread %s succeeded %s %s" % + (str(threading.current_thread()), + self.args['data_hash'], + self.args['service_root'])) + return limiter.increment_done() + logging.warning("Request fail: PUT %s => %s %s" % + (url, resp['status'], content)) + except (httplib2.HttpLib2Error, httplib.HTTPException) as e: + logging.warning("Request fail: PUT %s => %s: %s" % + (url, type(e), str(e))) -class KeepClient: def __init__(self): self.lock = threading.Lock() self.service_roots = None @@ -854,36 +967,27 @@ class KeepClient: data_hash = m.hexdigest() have_copies = 0 want_copies = kwargs.get('copies', 2) + if not (want_copies > 0): + return data_hash + threads = [] + thread_limiter = KeepClient.ThreadLimiter(want_copies) for service_root in self.shuffled_service_roots(data_hash): - h = httplib2.Http() - url = service_root + data_hash - api_token = os.environ['ARVADOS_API_TOKEN'] - headers = {'Authorization': "OAuth2 %s" % api_token} - try: - resp, content = h.request(url.encode('utf-8'), 'PUT', - headers=headers, - body=data) - if (resp['status'] == '401' and - re.match(r'Timestamp verification failed', content)): - body = self.sign_for_old_server(data_hash, data) - h = httplib2.Http() - resp, content = h.request(url.encode('utf-8'), 'PUT', - headers=headers, - body=body) - if re.match(r'^2\d\d$', resp['status']): - have_copies += 1 - if have_copies == want_copies: - return data_hash + '+' + str(len(data)) - else: - logging.warning("Request fail: PUT %s => %s %s" % - (url, resp['status'], content)) - except (httplib2.HttpLib2Error, httplib.HTTPException) as e: - logging.warning("Request fail: PUT %s => %s: %s" % - (url, type(e), str(e))) + t = KeepClient.KeepWriterThread(data=data, + data_hash=data_hash, + service_root=service_root, + thread_limiter=thread_limiter) + t.start() + threads += [t] + for t in threads: + t.join() + have_copies = thread_limiter.done() + if have_copies == want_copies: + return (data_hash + '+' + str(len(data))) raise Exception("Write fail for %s: wanted %d but wrote %d" % (data_hash, want_copies, have_copies)) - def sign_for_old_server(self, data_hash, data): + @staticmethod + def sign_for_old_server(data_hash, data): return (("-----BEGIN PGP SIGNED MESSAGE-----\n\n\n%d %s\n-----BEGIN PGP SIGNATURE-----\n\n-----END PGP SIGNATURE-----\n" % (int(time.time()), data_hash)) + data)