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# frozen_string_literal: true
module Gitlab
module Memory
class Watchdog
module Monitor
class RssMemoryLimit
attr_reader :memory_limit_bytes
def initialize(memory_limit_bytes:)
@memory_limit_bytes = memory_limit_bytes
init_memory_limit_metrics
end
def call
worker_rss_bytes = Gitlab::Metrics::System.memory_usage_rss[:total]
return { threshold_violated: false, payload: {} } if worker_rss_bytes <= memory_limit_bytes
{ threshold_violated: true, payload: payload(worker_rss_bytes, memory_limit_bytes) }
end
private
def payload(worker_rss_bytes, memory_limit_bytes)
{
message: 'rss memory limit exceeded',
memwd_rss_bytes: worker_rss_bytes,
memwd_max_rss_bytes: memory_limit_bytes
}
end
def init_memory_limit_metrics
rss_memory_limit = Gitlab::Metrics.gauge(
:gitlab_memwd_max_memory_limit,
'The configured fixed limit for rss memory'
)
rss_memory_limit.set({}, memory_limit_bytes)
end
end
end
end
end
end
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