Add timeout on metric HTTP requests #70
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By default, neither webrick or rack will timeout http requests. This means that if a request to `/metrics` or `/queue/metrics` takes longer than the `scrape_timeout`, we risk backing up requests for metrics and eventually overloading the worker. This adds rack-timeout to force the request to exit after the default timeout of 30 seconds (but it can be changed either by setting `RACK_TIMEOUT_SERVICE_TIMEOUT` to a different value or by the `--metrics-request-timeout` options flag when starting the worker).
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By default, neither webrick or rack will timeout http requests. This
means that if a request to
/metricsor/queue/metricstakes longerthan the
scrape_timeout, we risk backing up requests for metrics andeventually overloading the worker.
This adds rack-timeout to force the request to exit after the default
timeout of 30 seconds (but it can be changed either by setting
RACK_TIMEOUT_SERVICE_TIMEOUTto a different value or by the--metrics-request-timeoutoptions flag when starting the worker).