/usr/lib/python2.7/dist-packages/osprofiler/drivers/redis_driver.py is in python-osprofiler 1.15.2-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | # Copyright 2016 Mirantis Inc.
# Copyright 2016 IBM Corporation.
# 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 oslo_config import cfg
from oslo_serialization import jsonutils
import six.moves.urllib.parse as parser
from osprofiler.drivers import base
from osprofiler import exc
class Redis(base.Driver):
def __init__(self, connection_str, db=0, project=None,
service=None, host=None, **kwargs):
"""Redis driver for OSProfiler."""
super(Redis, self).__init__(connection_str, project=project,
service=service, host=host)
try:
from redis import StrictRedis
except ImportError:
raise exc.CommandError(
"To use this command, you should install "
"'redis' manually. Use command:\n "
"'pip install redis'.")
parsed_url = parser.urlparse(self.connection_str)
self.db = StrictRedis(host=parsed_url.hostname,
port=parsed_url.port,
db=db)
self.namespace = "osprofiler:"
@classmethod
def get_name(cls):
return "redis"
def notify(self, info):
"""Send notifications to Redis.
: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
Redis.
"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
key = self.namespace + data["base_id"] + "_" + data["trace_id"] + "_" + \
data["timestamp"]
self.db.set(key, jsonutils.dumps(data))
def list_traces(self, query="*", fields=[]):
"""Returns array of all base_id fields that match the given criteria
:param query: string that specifies the query criteria
:param fields: iterable of strings that specifies the output fields
"""
for base_field in ["base_id", "timestamp"]:
if base_field not in fields:
fields.append(base_field)
ids = self.db.scan_iter(match=self.namespace + query)
traces = [jsonutils.loads(self.db.get(i)) for i in ids]
result = []
for trace in traces:
result.append({key: value for key, value in trace.iteritems()
if key in fields})
return result
def get_report(self, base_id):
"""Retrieves and parses notification from Redis.
:param base_id: Base id of trace elements.
"""
for key in self.db.scan_iter(match=self.namespace + base_id + "*"):
data = self.db.get(key)
n = jsonutils.loads(data)
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()
class RedisSentinel(Redis, base.Driver):
def __init__(self, connection_str, db=0, project=None,
service=None, host=None, conf=cfg.CONF, **kwargs):
"""Redis driver for OSProfiler."""
super(RedisSentinel, self).__init__(connection_str, project=project,
service=service, host=host)
try:
from redis.sentinel import Sentinel
except ImportError:
raise exc.CommandError(
"To use this command, you should install "
"'redis' manually. Use command:\n "
"'pip install redis'.")
self.conf = conf
socket_timeout = self.conf.profiler.socket_timeout
parsed_url = parser.urlparse(self.connection_str)
sentinel = Sentinel([(parsed_url.hostname, int(parsed_url.port))],
socket_timeout=socket_timeout)
self.db = sentinel.master_for(self.conf.profiler.sentinel_service_name,
socket_timeout=socket_timeout)
@classmethod
def get_name(cls):
return "redissentinel"
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