def __init__(self, tchannel=None, dst=None, sample_rate=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
:param sample_rate:
The sample_rate determines the probability that the trace span
been sampled.
The rate of sampling is in the range [0, 1] with 0.01 precision.
By default it takes 100% sampling.
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
if sample_rate is None:
sample_rate = self.DEFAULT_RATE
assert 0 <= sample_rate <= 1
self.rate = sample_rate
self._check_point = self.rate * (1 << 64)
def __init__(self, tchannel=None, dst=None, sample_rate=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
:param sample_rate:
The sample_rate determines the probability that the trace span
been sampled.
The rate of sampling is in the range [0, 1] with 0.01 precision.
By default it takes 100% sampling.
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
if sample_rate is None:
sample_rate = self.DEFAULT_RATE
assert 0 <= sample_rate <= 1
self.rate = sample_rate
self._check_point = self.rate * (1 << 64)
def __init__(self, tchannel=None, dst=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
def __init__(self, tchannel=None, dst=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
class ZipkinTraceHook(EventHook):
"""generate zipkin-style span for tracing"""
DEFAULT_RATE = 0.01
def __init__(self, tchannel=None, dst=None, sample_rate=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
:param sample_rate:
The sample_rate determines the probability that the trace span
been sampled.
The rate of sampling is in the range [0, 1] with 0.01 precision.
By default it takes 100% sampling.
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
if sample_rate is None:
sample_rate = self.DEFAULT_RATE
assert 0 <= sample_rate <= 1
self.rate = sample_rate
self._check_point = self.rate * (1 << 64)
def _lucky(self, id):
return id < self._check_point
def before_send_request(self, request):
if not request.tracing.traceflags:
return
if not request.tracing.parent_span_id and not self._lucky(
request.tracing.trace_id):
# disable trace
request.tracing.traceflags = False
return
ann = annotation.client_send()
request.tracing.annotations.append(ann)
def before_receive_request(self, request):
if not request.tracing.traceflags:
return
request.tracing.annotations.append(annotation.server_recv())
caller_name = request.headers.get('cn')
if caller_name:
request.tracing.annotations.append(
annotation.string('cn', caller_name), )
def after_send_response(self, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{server_recv, server_send} to zipkin
ann = annotation.server_send()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_response(self, request, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{client_recv, client_send} to zipkin
ann = annotation.client_recv()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_error(self, request, error):
if not error.tracing.traceflags:
return
ann = annotation.client_recv()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])
def after_send_error(self, error):
if not error.tracing.traceflags:
return
ann = annotation.server_send()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])
class ZipkinTraceHook(EventHook):
"""generate zipkin-style span for tracing"""
def __init__(self, tchannel=None, dst=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
def before_send_request(self, request):
if not request.tracing.traceflags:
return
ann = annotation.client_send()
request.tracing.annotations.append(ann)
def before_receive_request(self, request):
if not request.tracing.traceflags:
return
ann = annotation.server_recv()
request.tracing.annotations.append(ann)
def after_send_response(self, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{server_recv, server_send} to zipkin
ann = annotation.server_send()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_response(self, request, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{client_recv, client_send} to zipkin
ann = annotation.client_recv()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_error(self, request, error):
if not error.tracing.traceflags:
return
ann = annotation.client_recv()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])
def after_send_error(self, error):
if not error.tracing.traceflags:
return
ann = annotation.server_send()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])
class ZipkinTraceHook(EventHook):
"""generate zipkin-style span for tracing"""
DEFAULT_RATE = 1.0
def __init__(self, tchannel=None, dst=None, sample_rate=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
:param sample_rate:
The sample_rate determines the probability that the trace span
been sampled.
The rate of sampling is in the range [0, 1] with 0.01 precision.
By default it takes 100% sampling.
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
if sample_rate is None:
sample_rate = self.DEFAULT_RATE
assert 0 <= sample_rate <= 1
self.rate = sample_rate
self._check_point = self.rate * (1 << 64)
def _lucky(self, id):
return id < self._check_point
def before_send_request(self, request):
if not request.tracing.traceflags:
return
if not request.tracing.parent_span_id and not self._lucky(
request.tracing.trace_id
):
# disable trace
request.tracing.traceflags = False
return
ann = annotation.client_send()
request.tracing.annotations.append(ann)
def before_receive_request(self, request):
if not request.tracing.traceflags:
return
ann = annotation.server_recv()
request.tracing.annotations.append(ann)
def after_send_response(self, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{server_recv, server_send} to zipkin
ann = annotation.server_send()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_response(self, request, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{client_recv, client_send} to zipkin
ann = annotation.client_recv()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_error(self, request, error):
if not error.tracing.traceflags:
return
ann = annotation.client_recv()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])
def after_send_error(self, error):
if not error.tracing.traceflags:
return
ann = annotation.server_send()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])
class ZipkinTraceHook(EventHook):
"""generate zipkin-style span for tracing"""
def __init__(self, tchannel=None, dst=None):
"""Log zipkin style trace.
:param tchannel:
The tchannel instance to send zipkin trace spans
:param dst:
The destination to output trace information
"""
if tchannel:
# TChannelZipkinTracer generates Base64-encoded span
# and uploads to zipkin server
self.tracer = TChannelZipkinTracer(tchannel)
else:
# DebugTracer generates json style span info and writes
# to dst. By default it writes to stdout
self.tracer = DebugTracer(dst)
def before_send_request(self, request):
if not request.tracing.traceflags:
return
ann = annotation.client_send()
request.tracing.annotations.append(ann)
def before_receive_request(self, request):
if not request.tracing.traceflags:
return
ann = annotation.server_recv()
request.tracing.annotations.append(ann)
def after_send_response(self, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{server_recv, server_send} to zipkin
ann = annotation.server_send()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_response(self, request, response):
if not response.tracing.traceflags:
return
# send out a pair of annotations{client_recv, client_send} to zipkin
ann = annotation.client_recv()
response.tracing.annotations.append(ann)
self.tracer.record([(response.tracing, response.tracing.annotations)])
def after_receive_error(self, request, error):
if not error.tracing.traceflags:
return
ann = annotation.client_recv()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])
def after_send_error(self, error):
if not error.tracing.traceflags:
return
ann = annotation.server_send()
error.tracing.annotations.append(ann)
self.tracer.record([(error.tracing, error.tracing.annotations)])