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https://github.com/element-hq/synapse
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Add standard process_open_fds metric
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parent
95fc70216d
commit
06f1ad1625
1 changed files with 29 additions and 20 deletions
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@ -117,6 +117,17 @@ BYTES_PER_PAGE = 4096
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rusage = None
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stats = None
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fd_counts = None
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TYPES = {
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stat.S_IFSOCK: "SOCK",
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stat.S_IFLNK: "LNK",
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stat.S_IFREG: "REG",
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stat.S_IFBLK: "BLK",
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stat.S_IFDIR: "DIR",
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stat.S_IFCHR: "CHR",
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stat.S_IFIFO: "FIFO",
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}
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def update_resource_metrics():
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global rusage
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@ -128,26 +139,8 @@ def update_resource_metrics():
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# line is PID (command) more stats go here ...
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stats = line.split(") ", 1)[1].split(" ")
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## Legacy synapse-invented metric names
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resource_metrics = get_metrics_for("process.resource")
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# msecs
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resource_metrics.register_callback("utime", lambda: rusage.ru_utime * 1000)
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resource_metrics.register_callback("stime", lambda: rusage.ru_stime * 1000)
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# kilobytes
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resource_metrics.register_callback("maxrss", lambda: rusage.ru_maxrss * 1024)
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TYPES = {
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stat.S_IFSOCK: "SOCK",
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stat.S_IFLNK: "LNK",
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stat.S_IFREG: "REG",
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stat.S_IFBLK: "BLK",
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stat.S_IFDIR: "DIR",
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stat.S_IFCHR: "CHR",
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stat.S_IFIFO: "FIFO",
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}
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global fd_counts
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fd_counts = _process_fds()
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def _process_fds():
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@ -174,6 +167,18 @@ def _process_fds():
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return counts
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## Legacy synapse-invented metric names
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resource_metrics = get_metrics_for("process.resource")
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# msecs
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resource_metrics.register_callback("utime", lambda: rusage.ru_utime * 1000)
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resource_metrics.register_callback("stime", lambda: rusage.ru_stime * 1000)
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# kilobytes
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resource_metrics.register_callback("maxrss", lambda: rusage.ru_maxrss * 1024)
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get_metrics_for("process").register_callback("fds", _process_fds, labels=["type"])
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## New prometheus-standard metric names
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@ -196,6 +201,10 @@ process_metrics.register_callback(
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"resident_memory_bytes", lambda: int(stats[21]) * BYTES_PER_PAGE
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)
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process_metrics.register_callback(
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"open_fds", lambda: sum(fd_counts.values())
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)
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reactor_metrics = get_metrics_for("reactor")
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tick_time = reactor_metrics.register_distribution("tick_time")
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pending_calls_metric = reactor_metrics.register_distribution("pending_calls")
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