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#!/usr/bin/env python
# Copyright (c) Authors of Clover
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
from clover.orchestration import kube_client
from clover.tracing.tracing import Tracing
def _get_svc_pods(svc_name, namespace):
k8s_client = kube_client.KubeClient()
svc = k8s_client.find_svc_by_namespace(svc_name=svc_name,
namespace=namespace)
if not svc:
err_msg = 'Failed to locate service %s in %s namespace' \
% (svc_name, namespace)
print err_msg
return False, [err_msg]
pods = k8s_client.find_pod_by_namespace()
if not pods:
err_msg = 'No pod found in namespace %s' % namespace
return False, [err_msg]
svc_pods = {}
for p,l in pods.items():
pod_labels = l.get('labels')
svc_selector_dict = svc[service_name].get('selector')
for svc_select_key in svc_selector_dict:
if svc_select_key in pod_labels:
if svc_selector_dict[svc_select_key] == pod_labels[svc_select_key]:
svc_pods[p] = l
return svc_pods
def validate_perf(tracing, test_id, svc_name, control_svc, variant_svc):
ret_dict = {}
ret_dict[control_svc] = {}
ret_dict[control_svc]['in'] = {}
ret_dict[control_svc]['in']['total'] = 0
ret_dict[control_svc]['in']['average'] = 0
ret_dict[control_svc]['out'] = {}
ret_dict[control_svc]['out']['total'] = 0
ret_dict[control_svc]['out']['average'] = 0
ret_dict[variant_svc] = {}
ret_dict[variant_svc]['in'] = {}
ret_dict[variant_svc]['in']['total'] = 0
ret_dict[variant_svc]['in']['average'] = 0
ret_dict[variant_svc]['out'] = {}
ret_dict[variant_svc]['out']['total'] = 0
ret_dict[variant_svc]['out']['average'] = 0
req_id_dict = {}
def _fill_up_ret_dict(direction, svc, duration, out_svc=None):
sum = ret_dict[svc][direction]['average'] * \
ret_dict[svc][direction]['total'] + \
int(duration)
ret_dict[svc][direction]['total'] += 1
ret_dict[svc][direction]['average'] = \
float(sum) / float(ret_dict[svc][direction]['total'])
if direction == 'out' and out_svc:
# tracking the out service from svc
# TODO(s3wong): this assumes only ONE direction from
# service to another service, which may not be true
# in essence, the data structure should track (srv, out)
# pairs and calculate average that way
ret_dict[svc][direction]['out_svc'] = out_svc
def _check_req_id(req_id, svc=None, node_id=None,
duration=None, direction=None,
out_svc=None):
if req_id not in req_id_dict:
req_id_dict[req_id] = {}
if svc:
req_id_dict[req_id]['svc'] = svc
else:
req_id_dict[req_id]['node_id'] = node_id
req_id_dict[req_id]['duration'] = int(duration)
req_id_dict[req_id]['direction'] = direction
if direction == 'out' and out_svc:
req_id_dict[req_id]['out_svc'] = out_svc
trace_ids = tracing.getRedisTraceids(test_id)
for trace_id in trace_ids:
span_ids = tracing.getRedisSpanids(trace_id)
for span in span_ids:
out_svc = None
duration = tracing.getRedisSpanValue(span, trace_id, 'duration')
node_id = tracing.getRedisTagsValue(span, trace_id, 'node_id')
upstream_cluster = tracing.getRedisTagsValue(span, trace_id, 'upstream_cluster')
req_id = tracing.getRedisTagsValue(span, trace_id, 'guid:x-request-id')
if upstream_cluster.startswith('in.'):
direction = 'in'
else:
direction = 'out'
out_svc = upstream_cluster.split('.')[1]
if control_svc in node_id:
_fill_up_ret_dict(direction, control_svc, duration, out_svc=out_svc)
_check_req_id(req_id, svc=control_svc)
elif variant_svc in node_id:
_fill_up_ret_dict(direction, variant_svc, duration, out_svc=out_svc)
_check_req_id(req_id, svc=variant_svc)
else:
# client to svc or server from svc as client
if out_svc and out_svc == svc_name:
_check_req_id(req_id, node_id=node_id, direction=direction,
duration=duration, out_svc=out_svc)
for req_id, svc_dict in req_id_dict.items():
node_id = svc_dict.get('node_id')
if not node_id:
continue
pod_name = node_id.split('~')[2]
svc = svc_dict.get('svc')
if pod_name not in ret_dict.get(svc):
ret_dict[svc][pod_name] = {}
ret_dict[svc][pod_name]['total'] = 0
ret_dict[svc][pod_name]['direction'] = svc_dict.get('direction')
if svc_dict.get('out_svc'):
ret_dict[svc][pod_name]['out_svc'] = svc_dict.get('out_svc')
ret_dict[svc][pod_name]['average'] = 0
sum = ret_dict[svc][pod_name]['average'] * \
ret_dict[svc][pod_name]['total'] + \
svc_dict.get('duration')
ret_dict[svc][pod_name]['total'] += 1
ret_dict[svc][pod_name]['average'] = \
float(sum) / float(ret_dict[svc][pod_name]['total'])
return ret_dict
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