diff options
Diffstat (limited to 'synapse/metrics')
| -rw-r--r-- | synapse/metrics/__init__.py | 6 | ||||
| -rw-r--r-- | synapse/metrics/_exposition.py | 28 | ||||
| -rw-r--r-- | synapse/metrics/background_process_metrics.py | 7 |
3 files changed, 19 insertions, 22 deletions
diff --git a/synapse/metrics/__init__.py b/synapse/metrics/__init__.py index fef2846669..f237b8a236 100644 --- a/synapse/metrics/__init__.py +++ b/synapse/metrics/__init__.py @@ -46,7 +46,7 @@ logger = logging.getLogger(__name__) METRICS_PREFIX = "/_synapse/metrics" running_on_pypy = platform.python_implementation() == "PyPy" -all_gauges = {} # type: Dict[str, Union[LaterGauge, InFlightGauge]] +all_gauges: "Dict[str, Union[LaterGauge, InFlightGauge]]" = {} HAVE_PROC_SELF_STAT = os.path.exists("/proc/self/stat") @@ -130,7 +130,7 @@ class InFlightGauge: ) # Counts number of in flight blocks for a given set of label values - self._registrations = {} # type: Dict + self._registrations: Dict = {} # Protects access to _registrations self._lock = threading.Lock() @@ -248,7 +248,7 @@ class GaugeBucketCollector: # We initially set this to None. We won't report metrics until # this has been initialised after a successful data update - self._metric = None # type: Optional[GaugeHistogramMetricFamily] + self._metric: Optional[GaugeHistogramMetricFamily] = None registry.register(self) diff --git a/synapse/metrics/_exposition.py b/synapse/metrics/_exposition.py index 8002be56e0..bb9bcb5592 100644 --- a/synapse/metrics/_exposition.py +++ b/synapse/metrics/_exposition.py @@ -34,7 +34,7 @@ from twisted.web.resource import Resource from synapse.util import caches -CONTENT_TYPE_LATEST = str("text/plain; version=0.0.4; charset=utf-8") +CONTENT_TYPE_LATEST = "text/plain; version=0.0.4; charset=utf-8" INF = float("inf") @@ -55,8 +55,8 @@ def floatToGoString(d): # Go switches to exponents sooner than Python. # We only need to care about positive values for le/quantile. if d > 0 and dot > 6: - mantissa = "{0}.{1}{2}".format(s[0], s[1:dot], s[dot + 1 :]).rstrip("0.") - return "{0}e+0{1}".format(mantissa, dot - 1) + mantissa = f"{s[0]}.{s[1:dot]}{s[dot + 1 :]}".rstrip("0.") + return f"{mantissa}e+0{dot - 1}" return s @@ -65,7 +65,7 @@ def sample_line(line, name): labelstr = "{{{0}}}".format( ",".join( [ - '{0}="{1}"'.format( + '{}="{}"'.format( k, v.replace("\\", r"\\").replace("\n", r"\n").replace('"', r"\""), ) @@ -78,10 +78,8 @@ def sample_line(line, name): timestamp = "" if line.timestamp is not None: # Convert to milliseconds. - timestamp = " {0:d}".format(int(float(line.timestamp) * 1000)) - return "{0}{1} {2}{3}\n".format( - name, labelstr, floatToGoString(line.value), timestamp - ) + timestamp = f" {int(float(line.timestamp) * 1000):d}" + return "{}{} {}{}\n".format(name, labelstr, floatToGoString(line.value), timestamp) def generate_latest(registry, emit_help=False): @@ -118,14 +116,14 @@ def generate_latest(registry, emit_help=False): # Output in the old format for compatibility. if emit_help: output.append( - "# HELP {0} {1}\n".format( + "# HELP {} {}\n".format( mname, metric.documentation.replace("\\", r"\\").replace("\n", r"\n"), ) ) - output.append("# TYPE {0} {1}\n".format(mname, mtype)) + output.append(f"# TYPE {mname} {mtype}\n") - om_samples = {} # type: Dict[str, List[str]] + om_samples: Dict[str, List[str]] = {} for s in metric.samples: for suffix in ["_created", "_gsum", "_gcount"]: if s.name == metric.name + suffix: @@ -143,13 +141,13 @@ def generate_latest(registry, emit_help=False): for suffix, lines in sorted(om_samples.items()): if emit_help: output.append( - "# HELP {0}{1} {2}\n".format( + "# HELP {}{} {}\n".format( metric.name, suffix, metric.documentation.replace("\\", r"\\").replace("\n", r"\n"), ) ) - output.append("# TYPE {0}{1} gauge\n".format(metric.name, suffix)) + output.append(f"# TYPE {metric.name}{suffix} gauge\n") output.extend(lines) # Get rid of the weird colon things while we're at it @@ -163,12 +161,12 @@ def generate_latest(registry, emit_help=False): # Also output in the new format, if it's different. if emit_help: output.append( - "# HELP {0} {1}\n".format( + "# HELP {} {}\n".format( mnewname, metric.documentation.replace("\\", r"\\").replace("\n", r"\n"), ) ) - output.append("# TYPE {0} {1}\n".format(mnewname, mtype)) + output.append(f"# TYPE {mnewname} {mtype}\n") for s in metric.samples: # Get rid of the OpenMetrics specific samples (we should already have diff --git a/synapse/metrics/background_process_metrics.py b/synapse/metrics/background_process_metrics.py index de96ca0821..3a14260752 100644 --- a/synapse/metrics/background_process_metrics.py +++ b/synapse/metrics/background_process_metrics.py @@ -93,7 +93,7 @@ _background_process_db_sched_duration = Counter( # map from description to a counter, so that we can name our logcontexts # incrementally. (It actually duplicates _background_process_start_count, but # it's much simpler to do so than to try to combine them.) -_background_process_counts = {} # type: Dict[str, int] +_background_process_counts: Dict[str, int] = {} # Set of all running background processes that became active active since the # last time metrics were scraped (i.e. background processes that performed some @@ -103,7 +103,7 @@ _background_process_counts = {} # type: Dict[str, int] # background processes stacking up behind a lock or linearizer, where we then # only need to iterate over and update metrics for the process that have # actually been active and can ignore the idle ones. -_background_processes_active_since_last_scrape = set() # type: Set[_BackgroundProcess] +_background_processes_active_since_last_scrape: "Set[_BackgroundProcess]" = set() # A lock that covers the above set and dict _bg_metrics_lock = threading.Lock() @@ -137,8 +137,7 @@ class _Collector: _background_process_db_txn_duration, _background_process_db_sched_duration, ): - for r in m.collect(): - yield r + yield from m.collect() REGISTRY.register(_Collector()) |