c983708637
Added Apache 2.0 License for missed files Change-Id: I72217d3cf0089434a9bbe1e5dfd57224a803704e Signed-off-by: Jui Chandwaskar <jchandwaskar@op5.com>
98 lines
3.2 KiB
Python
98 lines
3.2 KiB
Python
# (C) Copyright 2015,2016 Hewlett Packard Enterprise Development Company LP
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import json
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import logging
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import threading
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import monasca_agent.common.emitter as emitter
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import monasca_agent.common.util as util
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log = logging.getLogger(__name__)
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# Since we call flush more often than the metrics aggregation interval, we should
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# log a bunch of flushes in a row every so often.
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FLUSH_LOGGING_PERIOD = 70
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FLUSH_LOGGING_INITIAL = 10
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FLUSH_LOGGING_COUNT = 5
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EVENT_CHUNK_SIZE = 50
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class Reporter(threading.Thread):
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"""The reporter periodically sends the aggregated metrics to the
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server.
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"""
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def __init__(self, interval, aggregator, api_host, event_chunk_size=None):
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threading.Thread.__init__(self)
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self.interval = int(interval)
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self.finished = threading.Event()
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self.aggregator = aggregator
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self.flush_count = 0
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self.log_count = 0
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self.api_host = api_host
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self.event_chunk_size = event_chunk_size or EVENT_CHUNK_SIZE
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@staticmethod
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def serialize_metrics(metrics):
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return json.dumps({"series": metrics})
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def stop(self):
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log.info("Stopping reporter")
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self.finished.set()
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def run(self):
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log.info("Reporting to %s every %ss" % (self.api_host, self.interval))
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while not self.finished.isSet(): # Use camel case isSet for 2.4 support.
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self.finished.wait(self.interval)
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self.flush()
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# Clean up the status messages.
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log.debug("Stopped reporter")
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def flush(self):
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try:
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self.flush_count += 1
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self.log_count += 1
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metrics = self.aggregator.flush()
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count = len(metrics)
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if self.flush_count % FLUSH_LOGGING_PERIOD == 0:
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self.log_count = 0
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if count:
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try:
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emitter.http_emitter(metrics, log, self.api_host)
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except Exception:
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log.exception("Error running emitter.")
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should_log = self.flush_count <= FLUSH_LOGGING_INITIAL \
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or self.log_count <= FLUSH_LOGGING_COUNT
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log_func = log.info
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if not should_log:
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log_func = log.debug
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log_func(
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"Flush #%s: flushed %s metric%s" %
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(self.flush_count,
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count,
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util.plural(count)))
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if self.flush_count == FLUSH_LOGGING_INITIAL:
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log.info(
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"First flushes done, %s flushes will be logged every %s flushes." %
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(FLUSH_LOGGING_COUNT, FLUSH_LOGGING_PERIOD))
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except Exception:
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log.exception("Error flushing metrics")
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