diff options
Diffstat (limited to 'synapse/metrics')
| -rw-r--r-- | synapse/metrics/__init__.py | 141 | ||||
| -rw-r--r-- | synapse/metrics/process_collector.py | 159 |
2 files changed, 159 insertions, 141 deletions
diff --git a/synapse/metrics/__init__.py b/synapse/metrics/__init__.py index 9d18b0fbfe..a6b868775d 100644 --- a/synapse/metrics/__init__.py +++ b/synapse/metrics/__init__.py @@ -13,14 +13,8 @@ # See the License for the specific language governing permissions and # limitations under the License. -# Because otherwise 'resource' collides with synapse.metrics.resource -from __future__ import absolute_import - import logging -from resource import getrusage, RUSAGE_SELF import functools -import os -import stat import time import gc @@ -113,141 +107,6 @@ def render_all(): return "\n".join(strs) -# Now register some standard process-wide state metrics, to give indications of -# process resource usage - -TICKS_PER_SEC = 100 -BYTES_PER_PAGE = 4096 - -HAVE_PROC_STAT = os.path.exists("/proc/stat") -HAVE_PROC_SELF_STAT = os.path.exists("/proc/self/stat") -HAVE_PROC_SELF_LIMITS = os.path.exists("/proc/self/limits") -HAVE_PROC_SELF_FDS = os.path.exists("/proc/self/fds") - -rusage = None -stats = None -fd_counts = None - -# In order to report process_start_time_seconds we need to know the machine's -# boot time, because the value in /proc/self/stat is relative to this -boot_time = None -if HAVE_PROC_STAT: - with open("/proc/stat") as _procstat: - for line in _procstat: - if line.startswith("btime "): - boot_time = int(line.split()[1]) - -TYPES = { - stat.S_IFSOCK: "SOCK", - stat.S_IFLNK: "LNK", - stat.S_IFREG: "REG", - stat.S_IFBLK: "BLK", - stat.S_IFDIR: "DIR", - stat.S_IFCHR: "CHR", - stat.S_IFIFO: "FIFO", -} - - -def update_resource_metrics(): - global rusage - rusage = getrusage(RUSAGE_SELF) - - if HAVE_PROC_SELF_STAT: - global stats - with open("/proc/self/stat") as s: - line = s.read() - # line is PID (command) more stats go here ... - stats = line.split(") ", 1)[1].split(" ") - - global fd_counts - fd_counts = _process_fds() - - -def _process_fds(): - counts = {(k,): 0 for k in TYPES.values()} - counts[("other",)] = 0 - - # Not every OS will have a /proc/self/fd directory - if not HAVE_PROC_SELF_FDS: - return counts - - for fd in os.listdir("/proc/self/fd"): - try: - s = os.stat("/proc/self/fd/%s" % (fd)) - fmt = stat.S_IFMT(s.st_mode) - if fmt in TYPES: - t = TYPES[fmt] - else: - t = "other" - - counts[(t,)] += 1 - except OSError: - # the dirh itself used by listdir() is usually missing by now - pass - - return counts - - -# Legacy synapse-invented metric names - -resource_metrics = get_metrics_for("process.resource") - -resource_metrics.register_collector(update_resource_metrics) - -# msecs -resource_metrics.register_callback("utime", lambda: rusage.ru_utime * 1000) -resource_metrics.register_callback("stime", lambda: rusage.ru_stime * 1000) - -# kilobytes -resource_metrics.register_callback("maxrss", lambda: rusage.ru_maxrss * 1024) - -get_metrics_for("process").register_callback("fds", _process_fds, labels=["type"]) - -# New prometheus-standard metric names - -process_metrics = get_metrics_for("process") - -if HAVE_PROC_SELF_STAT: - process_metrics.register_callback( - "cpu_user_seconds_total", lambda: float(stats[11]) / TICKS_PER_SEC - ) - process_metrics.register_callback( - "cpu_system_seconds_total", lambda: float(stats[12]) / TICKS_PER_SEC - ) - process_metrics.register_callback( - "cpu_seconds_total", lambda: (float(stats[11]) + float(stats[12])) / TICKS_PER_SEC - ) - - process_metrics.register_callback( - "virtual_memory_bytes", lambda: int(stats[20]) - ) - process_metrics.register_callback( - "resident_memory_bytes", lambda: int(stats[21]) * BYTES_PER_PAGE - ) - - process_metrics.register_callback( - "start_time_seconds", lambda: boot_time + int(stats[19]) / TICKS_PER_SEC - ) - -if HAVE_PROC_SELF_FDS: - process_metrics.register_callback( - "open_fds", lambda: sum(fd_counts.values()) - ) - -if HAVE_PROC_SELF_LIMITS: - def _get_max_fds(): - with open("/proc/self/limits") as limits: - for line in limits: - if not line.startswith("Max open files "): - continue - # Line is Max open files $SOFT $HARD - return int(line.split()[3]) - return None - - process_metrics.register_callback( - "max_fds", lambda: _get_max_fds() - ) - reactor_metrics = get_metrics_for("reactor") tick_time = reactor_metrics.register_distribution("tick_time") pending_calls_metric = reactor_metrics.register_distribution("pending_calls") diff --git a/synapse/metrics/process_collector.py b/synapse/metrics/process_collector.py new file mode 100644 index 0000000000..4145694c5c --- /dev/null +++ b/synapse/metrics/process_collector.py @@ -0,0 +1,159 @@ +# -*- coding: utf-8 -*- +# Copyright 2015, 2016 OpenMarket Ltd +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +# Because otherwise 'resource' collides with synapse.metrics.resource +from __future__ import absolute_import + +import os +import stat +from resource import getrusage, RUSAGE_SELF + +from synapse.metrics import get_metrics_for + + +TICKS_PER_SEC = 100 +BYTES_PER_PAGE = 4096 + +HAVE_PROC_STAT = os.path.exists("/proc/stat") +HAVE_PROC_SELF_STAT = os.path.exists("/proc/self/stat") +HAVE_PROC_SELF_LIMITS = os.path.exists("/proc/self/limits") +HAVE_PROC_SELF_FD = os.path.exists("/proc/self/fd") + +TYPES = { + stat.S_IFSOCK: "SOCK", + stat.S_IFLNK: "LNK", + stat.S_IFREG: "REG", + stat.S_IFBLK: "BLK", + stat.S_IFDIR: "DIR", + stat.S_IFCHR: "CHR", + stat.S_IFIFO: "FIFO", +} + + +rusage = None +stats = None +fd_counts = None + +# In order to report process_start_time_seconds we need to know the +# machine's boot time, because the value in /proc/self/stat is relative to +# this +boot_time = None +if HAVE_PROC_STAT: + with open("/proc/stat") as _procstat: + for line in _procstat: + if line.startswith("btime "): + boot_time = int(line.split()[1]) + + +def update_resource_metrics(): + global rusage + rusage = getrusage(RUSAGE_SELF) + + if HAVE_PROC_SELF_STAT: + global stats + with open("/proc/self/stat") as s: + line = s.read() + # line is PID (command) more stats go here ... + stats = line.split(") ", 1)[1].split(" ") + + global fd_counts + fd_counts = _process_fds() + + +def _process_fds(): + counts = {(k,): 0 for k in TYPES.values()} + counts[("other",)] = 0 + + # Not every OS will have a /proc/self/fd directory + if not HAVE_PROC_SELF_FD: + return counts + + for fd in os.listdir("/proc/self/fd"): + try: + s = os.stat("/proc/self/fd/%s" % (fd)) + fmt = stat.S_IFMT(s.st_mode) + if fmt in TYPES: + t = TYPES[fmt] + else: + t = "other" + + counts[(t,)] += 1 + except OSError: + # the dirh itself used by listdir() is usually missing by now + pass + + return counts + + +def register_process_collector(): + # Legacy synapse-invented metric names + + resource_metrics = get_metrics_for("process.resource") + + resource_metrics.register_collector(update_resource_metrics) + + # msecs + resource_metrics.register_callback("utime", lambda: rusage.ru_utime * 1000) + resource_metrics.register_callback("stime", lambda: rusage.ru_stime * 1000) + + # kilobytes + resource_metrics.register_callback("maxrss", lambda: rusage.ru_maxrss * 1024) + + get_metrics_for("process").register_callback("fds", _process_fds, labels=["type"]) + + # New prometheus-standard metric names + + process_metrics = get_metrics_for("process") + + if HAVE_PROC_SELF_STAT: + process_metrics.register_callback( + "cpu_user_seconds_total", lambda: float(stats[11]) / TICKS_PER_SEC + ) + process_metrics.register_callback( + "cpu_system_seconds_total", lambda: float(stats[12]) / TICKS_PER_SEC + ) + process_metrics.register_callback( + "cpu_seconds_total", lambda: (float(stats[11]) + float(stats[12])) / TICKS_PER_SEC + ) + + process_metrics.register_callback( + "virtual_memory_bytes", lambda: int(stats[20]) + ) + process_metrics.register_callback( + "resident_memory_bytes", lambda: int(stats[21]) * BYTES_PER_PAGE + ) + + process_metrics.register_callback( + "start_time_seconds", lambda: boot_time + int(stats[19]) / TICKS_PER_SEC + ) + + if HAVE_PROC_SELF_FD: + process_metrics.register_callback( + "open_fds", lambda: sum(fd_counts.values()) + ) + + if HAVE_PROC_SELF_LIMITS: + def _get_max_fds(): + with open("/proc/self/limits") as limits: + for line in limits: + if not line.startswith("Max open files "): + continue + # Line is Max open files $SOFT $HARD + return int(line.split()[3]) + return None + + process_metrics.register_callback( + "max_fds", lambda: _get_max_fds() + ) |