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Add standard process_open_fds metric

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This commit is contained in:
Paul "LeoNerd" Evans 2016-10-19 14:45:08 +01:00
parent 95fc70216d
commit 06f1ad1625
1 changed files with 29 additions and 20 deletions
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49
synapse/metrics/__init__.py
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@ -117,6 +117,17 @@ BYTES_PER_PAGE = 4096
rusage = None rusage = None
stats = None stats = None
fd_counts = None
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(): def update_resource_metrics():
global rusage global rusage
@ -128,26 +139,8 @@ def update_resource_metrics():
# line is PID (command) more stats go here ... # line is PID (command) more stats go here ...
stats = line.split(") ", 1)[1].split(" ") stats = line.split(") ", 1)[1].split(" ")
## Legacy synapse-invented metric names global fd_counts
fd_counts = _process_fds()
resource_metrics = get_metrics_for("process.resource")
# 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)
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 _process_fds(): def _process_fds():
@ -174,6 +167,18 @@ def _process_fds():
return counts return counts
## Legacy synapse-invented metric names
resource_metrics = get_metrics_for("process.resource")
# 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"]) get_metrics_for("process").register_callback("fds", _process_fds, labels=["type"])
## New prometheus-standard metric names ## New prometheus-standard metric names
@ -196,6 +201,10 @@ process_metrics.register_callback(
"resident_memory_bytes", lambda: int(stats[21]) * BYTES_PER_PAGE "resident_memory_bytes", lambda: int(stats[21]) * BYTES_PER_PAGE
) )
process_metrics.register_callback(
"open_fds", lambda: sum(fd_counts.values())
)
reactor_metrics = get_metrics_for("reactor") reactor_metrics = get_metrics_for("reactor")
tick_time = reactor_metrics.register_distribution("tick_time") tick_time = reactor_metrics.register_distribution("tick_time")
pending_calls_metric = reactor_metrics.register_distribution("pending_calls") pending_calls_metric = reactor_metrics.register_distribution("pending_calls")