113a2ddddd
Adds ability to filter error traces to OSProfiler. Adds command for list error traces. Change-Id: I0ec97337cae5e573fedae2b6665aa73a73fe3654
113 lines
4.3 KiB
Python
113 lines
4.3 KiB
Python
# Copyright 2016 Mirantis Inc.
|
|
# All Rights Reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
from osprofiler.drivers import base
|
|
from osprofiler import exc
|
|
|
|
|
|
class MongoDB(base.Driver):
|
|
def __init__(self, connection_str, db_name="osprofiler", project=None,
|
|
service=None, host=None, **kwargs):
|
|
"""MongoDB driver for OSProfiler."""
|
|
|
|
super(MongoDB, self).__init__(connection_str, project=project,
|
|
service=service, host=host, **kwargs)
|
|
try:
|
|
from pymongo import MongoClient
|
|
except ImportError:
|
|
raise exc.CommandError(
|
|
"To use this command, you should install "
|
|
"'pymongo' manually. Use command:\n "
|
|
"'pip install pymongo'.")
|
|
|
|
client = MongoClient(self.connection_str, connect=False)
|
|
self.db = client[db_name]
|
|
|
|
@classmethod
|
|
def get_name(cls):
|
|
return "mongodb"
|
|
|
|
def notify(self, info):
|
|
"""Send notifications to MongoDB.
|
|
|
|
:param info: Contains information about trace element.
|
|
In payload dict there are always 3 ids:
|
|
"base_id" - uuid that is common for all notifications
|
|
related to one trace. Used to simplify
|
|
retrieving of all trace elements from
|
|
MongoDB.
|
|
"parent_id" - uuid of parent element in trace
|
|
"trace_id" - uuid of current element in trace
|
|
|
|
With parent_id and trace_id it's quite simple to build
|
|
tree of trace elements, which simplify analyze of trace.
|
|
|
|
"""
|
|
data = info.copy()
|
|
data["project"] = self.project
|
|
data["service"] = self.service
|
|
self.db.profiler.insert_one(data)
|
|
|
|
if (self.filter_error_trace
|
|
and data.get("info", {}).get("etype") is not None):
|
|
self.notify_error_trace(data)
|
|
|
|
def notify_error_trace(self, data):
|
|
"""Store base_id and timestamp of error trace to a separate db."""
|
|
self.db.profiler_error.update(
|
|
{"base_id": data["base_id"]},
|
|
{"base_id": data["base_id"], "timestamp": data["timestamp"]},
|
|
upsert=True
|
|
)
|
|
|
|
def list_traces(self, fields=None):
|
|
"""Query all traces from the storage.
|
|
|
|
:param fields: Set of trace fields to return. Defaults to 'base_id'
|
|
and 'timestamp'
|
|
:return List of traces, where each trace is a dictionary containing
|
|
at least `base_id` and `timestamp`.
|
|
"""
|
|
fields = set(fields or self.default_trace_fields)
|
|
ids = self.db.profiler.find("*").distinct("base_id")
|
|
out_format = {"base_id": 1, "timestamp": 1, "_id": 0}
|
|
out_format.update({i: 1 for i in fields})
|
|
return [self.db.profiler.find(
|
|
{"base_id": i}, out_format).sort("timestamp")[0] for i in ids]
|
|
|
|
def list_error_traces(self):
|
|
"""Returns all traces that have error/exception."""
|
|
out_format = {"base_id": 1, "timestamp": 1, "_id": 0}
|
|
return self.db.profiler_error.find({}, out_format)
|
|
|
|
def get_report(self, base_id):
|
|
"""Retrieves and parses notification from MongoDB.
|
|
|
|
:param base_id: Base id of trace elements.
|
|
"""
|
|
for n in self.db.profiler.find({"base_id": base_id}, {"_id": 0}):
|
|
trace_id = n["trace_id"]
|
|
parent_id = n["parent_id"]
|
|
name = n["name"]
|
|
project = n["project"]
|
|
service = n["service"]
|
|
host = n["info"]["host"]
|
|
timestamp = n["timestamp"]
|
|
|
|
self._append_results(trace_id, parent_id, name, project, service,
|
|
host, timestamp, n)
|
|
|
|
return self._parse_results()
|