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5e93f60b9e
* Enable new fancy asyncio metrics for dispatcherd Remove old dispatcher metrics and patch in new data from local whatever Update test fixture to new dispatcherd version * Update dispatcherd again * Handle node filter in URL, and catch more errors * Add test for metric filter * Split module for dispatcherd metrics
42 lines
1.5 KiB
Python
42 lines
1.5 KiB
Python
import http.client
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import socket
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import urllib.error
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import urllib.request
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import logging
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from django.conf import settings
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logger = logging.getLogger(__name__)
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def get_dispatcherd_metrics(request):
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metrics_cfg = settings.METRICS_SUBSYSTEM_CONFIG.get('server', {}).get(settings.METRICS_SERVICE_DISPATCHER, {})
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host = metrics_cfg.get('host', 'localhost')
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port = metrics_cfg.get('port', 8015)
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metrics_filter = []
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if request is not None and hasattr(request, "query_params"):
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try:
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nodes_filter = request.query_params.getlist("node")
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except Exception:
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nodes_filter = []
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if nodes_filter and settings.CLUSTER_HOST_ID not in nodes_filter:
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return ''
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try:
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metrics_filter = request.query_params.getlist("metric")
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except Exception:
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metrics_filter = []
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if metrics_filter:
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# Right now we have no way of filtering the dispatcherd metrics
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# so just avoid getting in the way if another metric is filtered for
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return ''
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url = f"http://{host}:{port}/metrics"
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try:
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with urllib.request.urlopen(url, timeout=1.0) as response:
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payload = response.read()
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if not payload:
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return ''
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return payload.decode('utf-8')
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except (urllib.error.URLError, UnicodeError, socket.timeout, TimeoutError, http.client.HTTPException) as exc:
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logger.debug(f"Failed to collect dispatcherd metrics from {url}: {exc}")
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return ''
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