def startMonitoringWithRetries():
"""
:returns: metricId
"""
with self.connectionFactory() as conn:
with conn.begin():
repository.lockOperationExclusive(conn,
repository.OperationLock.METRICS)
# Check if the metric is already monitored
matchingMetrics = repository.getAutostackMetricsWithMetricName(
conn,
autostackId,
nameColumnValue,
fields=[schema.metric.c.uid])
matchingMetric = next(iter(matchingMetrics), None)
if matchingMetric:
msg = ("monitorMetric: Autostack modelId=%s is already "
"monitoring metric=%s on resource=%s; model=%r"
% (matchingMetric.uid, nameColumnValue,
canonicalResourceName, matchingMetric))
self._log.warning(msg)
raise htm-it.app.exceptions.MetricAlreadyMonitored(
msg,
uid=matchingMetric.uid)
# Add a metric row for the requested metric
metricDict = repository.addMetric(
conn,
datasource=self._DATASOURCE,
name=nameColumnValue,
description=metricDescription,
server=canonicalResourceName,
location=autostack.region,
tag_name=autostack.name,
parameters=htmengine.utils.jsonEncode(modelSpec),
poll_interval=period,
status=MetricStatus.UNMONITORED)
metricId = metricDict["uid"]
repository.addMetricToAutostack(conn, autostackId, metricId)
# Start monitoring
scalar_metric_utils.startMonitoring(
conn=conn,
metricId=metricId,
swarmParams=swarmParams,
logger=self._log)
self._log.info("monitorMetric: monitoring metric=%s, stats=%r",
metricId, stats)
return metricId
def startMonitoringWithRetries():
""" :returns: metricId """
with self.connectionFactory() as conn:
with conn.begin():
repository.lockOperationExclusive(conn,
repository.OperationLock.METRICS)
# Check if the metric is already monitored
matchingMetrics = repository.getCloudwatchMetricsForNameAndServer(
conn,
nameColumnValue,
canonicalResourceName,
fields=[schema.metric.c.uid, schema.metric.c.parameters])
for m in matchingMetrics:
parameters = htmengine.utils.jsonDecode(m.parameters)
if (parameters["metricSpec"]["dimensions"] ==
metricSpec["dimensions"]):
msg = ("monitorMetric: Cloudwatch modelId=%s is already "
"monitoring metric=%s on resource=%s; model=%r"
% (m.uid, nameColumnValue, canonicalResourceName, m))
self._log.warning(msg)
raise htm-it.app.exceptions.MetricAlreadyMonitored(msg, uid=m.uid)
# Add a metric row for the requested metric
metricDict = repository.addMetric(
conn,
name=nameColumnValue,
description=metricDescription,
server=canonicalResourceName,
location=resourceLocation,
poll_interval=metricPeriod,
status=MetricStatus.UNMONITORED,
datasource=self._DATASOURCE,
parameters=htmengine.utils.jsonEncode(modelSpec),
tag_name=resourceName)
metricId = metricDict["uid"]
self._log.info("monitorMetric: metric=%s, stats=%r", metricId, stats)
# Start monitoring
scalar_metric_utils.startMonitoring(
conn=conn,
metricId=metricId,
swarmParams=swarmParams,
logger=self._log)
return metricId