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Versions: 22
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Stored size: 1.94 KB
Contents
# frozen_string_literal: true
module PrometheusExporter::Server
class ProcessCollector < TypeCollector
MAX_PROCESS_METRIC_AGE = 60
PROCESS_GAUGES = {
heap_free_slots: "Free ruby heap slots.",
heap_live_slots: "Used ruby heap slots.",
v8_heap_size: "Total JavaScript V8 heap size (bytes).",
v8_used_heap_size: "Total used JavaScript V8 heap size (bytes).",
v8_physical_size: "Physical size consumed by V8 heaps.",
v8_heap_count: "Number of V8 contexts running.",
rss: "Total RSS used by process.",
}
PROCESS_COUNTERS = {
major_gc_ops_total: "Major GC operations by process.",
minor_gc_ops_total: "Minor GC operations by process.",
allocated_objects_total: "Total number of allocated objects by process.",
}
def initialize
@process_metrics = []
end
def type
"process"
end
def metrics
return [] if @process_metrics.length == 0
metrics = {}
@process_metrics.map do |m|
metric_key = m["metric_labels"].merge("pid" => m["pid"])
metric_key.merge!(m["custom_labels"] || {})
PROCESS_GAUGES.map do |k, help|
k = k.to_s
if v = m[k]
g = metrics[k] ||= PrometheusExporter::Metric::Gauge.new(k, help)
g.observe(v, metric_key)
end
end
PROCESS_COUNTERS.map do |k, help|
k = k.to_s
if v = m[k]
c = metrics[k] ||= PrometheusExporter::Metric::Counter.new(k, help)
c.observe(v, metric_key)
end
end
end
metrics.values
end
def collect(obj)
now = ::Process.clock_gettime(::Process::CLOCK_MONOTONIC)
obj["created_at"] = now
@process_metrics.delete_if do |current|
(obj["pid"] == current["pid"] && obj["hostname"] == current["hostname"]) ||
(current["created_at"] + MAX_PROCESS_METRIC_AGE < now)
end
@process_metrics << obj
end
end
end
Version data entries
22 entries across 22 versions & 1 rubygems