def find_nodes(self, query):
"""Find nodes matching a query."""
# TODO: we should probably consider query.startTime and query.endTime
# to filter out metrics that had no points in this interval.
cache_key = "find:%s" % (hashing.compactHash(query.pattern))
results = self.django_cache().get(cache_key)
if results:
cache_hit = True
else:
find_start = time.time()
results = glob_utils.graphite_glob(self.accessor(), query.pattern)
log.rendering(
'find(%s) - %f secs' % (query.pattern, time.time() - find_start))
cache_hit = False
metric_names, directories = results
for metric_name in metric_names:
reader = Reader(
self.accessor(), self.cache(), self.carbonlink(), metric_name)
yield node.LeafNode(metric_name, reader)
for directory in directories:
yield node.BranchNode(directory)
if not cache_hit:
self.django_cache().set(cache_key, results, self._cache_timeout)
def find_nodes(self, query):
"""Find nodes matching a query."""
leaves_only = hasattr(query, "leaves_only") and query.leaves_only
cache_key = "find_nodes:%s" % self._hash(query)
cached = self.django_cache().get(cache_key)
if cached is not None:
cache_hit = True
success, results = cached
else:
find_start = time.time()
try:
if query.startTime is None:
start_time = None
else:
start_time = datetime.fromtimestamp(query.startTime)
if query.endTime is None:
end_time = None
else:
end_time = datetime.fromtimestamp(query.endTime)
results = glob_utils.graphite_glob(
self.accessor(),
query.pattern,
metrics=True,
directories=not leaves_only,
start_time=start_time,
end_time=end_time,
)
success = True
except bg_accessor.Error as e:
success = False
results = e
log.rendering(
"find(%s) - %f secs" % (query.pattern, time.time() - find_start)
)
cache_hit = False
if not cache_hit:
self.django_cache().set(cache_key, (success, results), self._cache_timeout)
if not success:
raise results
metric_names, directories = results
for metric_name in metric_names:
reader = Reader(
self.accessor(), self.cache(), self.carbonlink(), metric_name
)
yield node.LeafNode(metric_name, reader)
for directory in directories:
yield node.BranchNode(directory)
def metrics_to_nodes(self, metrics, pattern):
"""Filter metrics and convert to nodes."""
# From a metric list, infer directories.
# TODO: This is super super inefficient!
directories = set()
for metric in metrics:
components = metric.split(".")
for i in range(1, len(components)):
directories.add('.'.join(components[:i]))
# Then filter everything accoring to the pattern.
for directory in glob_utils.glob(directories, pattern):
yield node.BranchNode(directory)
for metric in glob_utils.glob(metrics, pattern):
yield node.LeafNode(metric, None)
def find_nodes(self, query):
"""Find nodes matching a query."""
# TODO: we should probably consider query.startTime and query.endTime
# to filter out metrics that had no points in this interval.
leaves_only = hasattr(query, 'leaves_only') and query.leaves_only
cache_key = "find_nodes:%s" % (hashing.compactHash(query.pattern))
cached = self.django_cache().get(cache_key)
if cached:
cache_hit = True
success, results = cached
else:
find_start = time.time()
try:
results = glob_utils.graphite_glob(self.accessor(),
query.pattern,
metrics=True,
directories=not leaves_only)
success = True
except bg_accessor.Error as e:
success = False
results = e
log.rendering('find(%s) - %f secs' %
(query.pattern, time.time() - find_start))
cache_hit = False
if not cache_hit:
self.django_cache().set(cache_key, (success, results),
self._cache_timeout)
if not success:
raise results
metric_names, directories = results
for metric_name in metric_names:
reader = Reader(self.accessor(), self.cache(), self.carbonlink(),
metric_name)
yield node.LeafNode(metric_name, reader)
for directory in directories:
yield node.BranchNode(directory)
