import zlib
import fcntl
import time
+import threading
from apiclient import errors
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
http.request = types.MethodType(self.http_request, http)
return http
-url = ('https://%s/discovery/v1/apis/'
- '{api}/{apiVersion}/rest' % os.environ['ARVADOS_API_HOST'])
+url = ('https://%s:%s/discovery/v1/apis/'
+ '{api}/{apiVersion}/rest' %
+ (os.environ['ARVADOS_API_HOST'],
+ os.environ.get('ARVADOS_API_PORT') or "443"))
credentials = CredentialsFromEnv()
# Use system's CA certificates (if we find them) instead of httplib2's
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)
allfiles += [ent_base]
return allfiles
-class DataReader:
- def __init__(self, data_locator):
- self.data_locator = data_locator
- self.p = subprocess.Popen(["whget", "-r", self.data_locator, "-"],
- stdout=subprocess.PIPE,
- stdin=None, stderr=subprocess.PIPE,
- shell=False, close_fds=True)
- def __enter__(self):
- pass
- def __exit__(self):
- self.close()
- def read(self, size, **kwargs):
- return self.p.stdout.read(size, **kwargs)
- def close(self):
- self.p.stdout.close()
- if not self.p.stderr.closed:
- for err in self.p.stderr:
- print >> sys.stderr, err
- self.p.stderr.close()
- self.p.wait()
- if self.p.returncode != 0:
- raise Exception("whget subprocess exited %d" % self.p.returncode)
-
-class StreamFileReader:
+class StreamFileReader(object):
def __init__(self, stream, pos, size, name):
self._stream = stream
self._pos = pos
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
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
self._populate()
return self._manifest_text
-class CollectionWriter:
+class CollectionWriter(object):
KEEP_BLOCK_SIZE = 2**26
def __init__(self):
self._data_buffer = []
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$', resp['status']):
+ logging.debug("KeepWriterThread %s succeeded %s %s" %
+ (str(threading.current_thread()),
+ self.args['data_hash'],
+ self.args['service_root']))
+ return limiter.increment_done()
+ logging.warning("Request fail: PUT %s => %s %s" %
+ (url, resp['status'], content))
+ except (httplib2.HttpLib2Error, httplib.HTTPException) as e:
+ logging.warning("Request fail: PUT %s => %s: %s" %
+ (url, type(e), str(e)))
-class KeepClient:
def __init__(self):
+ self.lock = threading.Lock()
self.service_roots = None
def shuffled_service_roots(self, hash):
if self.service_roots == None:
+ self.lock.acquire()
keep_disks = api().keep_disks().list().execute()['items']
roots = (("http%s://%s:%d/" %
('s' if f['service_ssl_flag'] else '',
for f in keep_disks)
self.service_roots = sorted(set(roots))
logging.debug(str(self.service_roots))
+ self.lock.release()
seed = hash
pool = self.service_roots[:]
pseq = []
headers = {'Authorization': "OAuth2 %s" % api_token,
'Accept': 'application/octet-stream'}
try:
- resp, content = h.request(url, 'GET', headers=headers)
+ resp, content = h.request(url.encode('utf-8'), 'GET',
+ headers=headers)
if re.match(r'^2\d\d$', resp['status']):
m = hashlib.new('md5')
m.update(content)
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, '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, '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)
projects / arvados.git / blobdiff