diff options
Diffstat (limited to '')
| -rw-r--r-- | changelog.d/5771.feature | 1 | ||||
| -rw-r--r-- | synapse/federation/transport/server.py | 43 | ||||
| -rw-r--r-- | synapse/http/servlet.py | 2 | ||||
| -rw-r--r-- | synapse/logging/opentracing.py | 144 | ||||
| -rw-r--r-- | synapse/replication/http/_base.py | 16 |
5 files changed, 123 insertions, 83 deletions
diff --git a/changelog.d/5771.feature b/changelog.d/5771.feature new file mode 100644 index 0000000000..f2f4de1fdd --- /dev/null +++ b/changelog.d/5771.feature @@ -0,0 +1 @@ +Make Opentracing work in worker mode. diff --git a/synapse/federation/transport/server.py b/synapse/federation/transport/server.py index a17148fc3c..dc53b4b170 100644 --- a/synapse/federation/transport/server.py +++ b/synapse/federation/transport/server.py @@ -38,7 +38,12 @@ from synapse.http.servlet import ( parse_string_from_args, ) from synapse.logging.context import run_in_background -from synapse.logging.opentracing import start_active_span_from_context, tags +from synapse.logging.opentracing import ( + start_active_span, + start_active_span_from_request, + tags, + whitelisted_homeserver, +) from synapse.types import ThirdPartyInstanceID, get_domain_from_id from synapse.util.ratelimitutils import FederationRateLimiter from synapse.util.versionstring import get_version_string @@ -288,20 +293,28 @@ class BaseFederationServlet(object): logger.warn("authenticate_request failed: %s", e) raise - # Start an opentracing span - with start_active_span_from_context( - request.requestHeaders, - "incoming-federation-request", - tags={ - "request_id": request.get_request_id(), - tags.SPAN_KIND: tags.SPAN_KIND_RPC_SERVER, - tags.HTTP_METHOD: request.get_method(), - tags.HTTP_URL: request.get_redacted_uri(), - tags.PEER_HOST_IPV6: request.getClientIP(), - "authenticated_entity": origin, - "servlet_name": request.request_metrics.name, - }, - ): + request_tags = { + "request_id": request.get_request_id(), + tags.SPAN_KIND: tags.SPAN_KIND_RPC_SERVER, + tags.HTTP_METHOD: request.get_method(), + tags.HTTP_URL: request.get_redacted_uri(), + tags.PEER_HOST_IPV6: request.getClientIP(), + "authenticated_entity": origin, + "servlet_name": request.request_metrics.name, + } + + # Only accept the span context if the origin is authenticated + # and whitelisted + if origin and whitelisted_homeserver(origin): + scope = start_active_span_from_request( + request, "incoming-federation-request", tags=request_tags + ) + else: + scope = start_active_span( + "incoming-federation-request", tags=request_tags + ) + + with scope: if origin: with ratelimiter.ratelimit(origin) as d: await d diff --git a/synapse/http/servlet.py b/synapse/http/servlet.py index fd07bf7b8e..c186b31f59 100644 --- a/synapse/http/servlet.py +++ b/synapse/http/servlet.py @@ -300,7 +300,7 @@ class RestServlet(object): http_server.register_paths( method, patterns, - trace_servlet(servlet_classname, method_handler), + trace_servlet(servlet_classname)(method_handler), servlet_classname, ) diff --git a/synapse/logging/opentracing.py b/synapse/logging/opentracing.py index 6b706e1892..4abea4474b 100644 --- a/synapse/logging/opentracing.py +++ b/synapse/logging/opentracing.py @@ -174,10 +174,48 @@ from twisted.internet import defer from synapse.config import ConfigError +# Helper class + + +class _DummyTagNames(object): + """wrapper of opentracings tags. We need to have them if we + want to reference them without opentracing around. Clearly they + should never actually show up in a trace. `set_tags` overwrites + these with the correct ones.""" + + INVALID_TAG = "invalid-tag" + COMPONENT = INVALID_TAG + DATABASE_INSTANCE = INVALID_TAG + DATABASE_STATEMENT = INVALID_TAG + DATABASE_TYPE = INVALID_TAG + DATABASE_USER = INVALID_TAG + ERROR = INVALID_TAG + HTTP_METHOD = INVALID_TAG + HTTP_STATUS_CODE = INVALID_TAG + HTTP_URL = INVALID_TAG + MESSAGE_BUS_DESTINATION = INVALID_TAG + PEER_ADDRESS = INVALID_TAG + PEER_HOSTNAME = INVALID_TAG + PEER_HOST_IPV4 = INVALID_TAG + PEER_HOST_IPV6 = INVALID_TAG + PEER_PORT = INVALID_TAG + PEER_SERVICE = INVALID_TAG + SAMPLING_PRIORITY = INVALID_TAG + SERVICE = INVALID_TAG + SPAN_KIND = INVALID_TAG + SPAN_KIND_CONSUMER = INVALID_TAG + SPAN_KIND_PRODUCER = INVALID_TAG + SPAN_KIND_RPC_CLIENT = INVALID_TAG + SPAN_KIND_RPC_SERVER = INVALID_TAG + + try: import opentracing + + tags = opentracing.tags except ImportError: opentracing = None + tags = _DummyTagNames try: from jaeger_client import Config as JaegerConfig from synapse.logging.scopecontextmanager import LogContextScopeManager @@ -252,10 +290,6 @@ def init_tracer(config): scope_manager=LogContextScopeManager(config), ).initialize_tracer() - # Set up tags to be opentracing's tags - global tags - tags = opentracing.tags - # Whitelisting @@ -334,8 +368,8 @@ def start_active_span_follows_from(operation_name, contexts): return scope -def start_active_span_from_context( - headers, +def start_active_span_from_request( + request, operation_name, references=None, tags=None, @@ -344,9 +378,9 @@ def start_active_span_from_context( finish_on_close=True, ): """ - Extracts a span context from Twisted Headers. + Extracts a span context from a Twisted Request. args: - headers (twisted.web.http_headers.Headers) + headers (twisted.web.http.Request) For the other args see opentracing.tracer @@ -360,7 +394,9 @@ def start_active_span_from_context( if opentracing is None: return _noop_context_manager() - header_dict = {k.decode(): v[0].decode() for k, v in headers.getAllRawHeaders()} + header_dict = { + k.decode(): v[0].decode() for k, v in request.requestHeaders.getAllRawHeaders() + } context = opentracing.tracer.extract(opentracing.Format.HTTP_HEADERS, header_dict) return opentracing.tracer.start_active_span( @@ -448,7 +484,7 @@ def set_operation_name(operation_name): @only_if_tracing -def inject_active_span_twisted_headers(headers, destination): +def inject_active_span_twisted_headers(headers, destination, check_destination=True): """ Injects a span context into twisted headers in-place @@ -467,7 +503,7 @@ def inject_active_span_twisted_headers(headers, destination): https://github.com/jaegertracing/jaeger-client-python/blob/master/jaeger_client/constants.py """ - if not whitelisted_homeserver(destination): + if check_destination and not whitelisted_homeserver(destination): return span = opentracing.tracer.active_span @@ -479,7 +515,7 @@ def inject_active_span_twisted_headers(headers, destination): @only_if_tracing -def inject_active_span_byte_dict(headers, destination): +def inject_active_span_byte_dict(headers, destination, check_destination=True): """ Injects a span context into a dict where the headers are encoded as byte strings @@ -511,7 +547,7 @@ def inject_active_span_byte_dict(headers, destination): @only_if_tracing -def inject_active_span_text_map(carrier, destination=None): +def inject_active_span_text_map(carrier, destination, check_destination=True): """ Injects a span context into a dict @@ -532,7 +568,7 @@ def inject_active_span_text_map(carrier, destination=None): https://github.com/jaegertracing/jaeger-client-python/blob/master/jaeger_client/constants.py """ - if destination and not whitelisted_homeserver(destination): + if check_destination and not whitelisted_homeserver(destination): return opentracing.tracer.inject( @@ -689,65 +725,43 @@ def tag_args(func): return _tag_args_inner -def trace_servlet(servlet_name, func): +def trace_servlet(servlet_name, extract_context=False): """Decorator which traces a serlet. It starts a span with some servlet specific - tags such as the servlet_name and request information""" - if not opentracing: - return func + tags such as the servlet_name and request information - @wraps(func) - @defer.inlineCallbacks - def _trace_servlet_inner(request, *args, **kwargs): - with start_active_span( - "incoming-client-request", - tags={ + Args: + servlet_name (str): The name to be used for the span's operation_name + extract_context (bool): Whether to attempt to extract the opentracing + context from the request the servlet is handling. + + """ + + def _trace_servlet_inner_1(func): + if not opentracing: + return func + + @wraps(func) + @defer.inlineCallbacks + def _trace_servlet_inner(request, *args, **kwargs): + request_tags = { "request_id": request.get_request_id(), tags.SPAN_KIND: tags.SPAN_KIND_RPC_SERVER, tags.HTTP_METHOD: request.get_method(), tags.HTTP_URL: request.get_redacted_uri(), tags.PEER_HOST_IPV6: request.getClientIP(), - "servlet_name": servlet_name, - }, - ): - result = yield defer.maybeDeferred(func, request, *args, **kwargs) - return result - - return _trace_servlet_inner - - -# Helper class - + } -class _DummyTagNames(object): - """wrapper of opentracings tags. We need to have them if we - want to reference them without opentracing around. Clearly they - should never actually show up in a trace. `set_tags` overwrites - these with the correct ones.""" + if extract_context: + scope = start_active_span_from_request( + request, servlet_name, tags=request_tags + ) + else: + scope = start_active_span(servlet_name, tags=request_tags) - INVALID_TAG = "invalid-tag" - COMPONENT = INVALID_TAG - DATABASE_INSTANCE = INVALID_TAG - DATABASE_STATEMENT = INVALID_TAG - DATABASE_TYPE = INVALID_TAG - DATABASE_USER = INVALID_TAG - ERROR = INVALID_TAG - HTTP_METHOD = INVALID_TAG - HTTP_STATUS_CODE = INVALID_TAG - HTTP_URL = INVALID_TAG - MESSAGE_BUS_DESTINATION = INVALID_TAG - PEER_ADDRESS = INVALID_TAG - PEER_HOSTNAME = INVALID_TAG - PEER_HOST_IPV4 = INVALID_TAG - PEER_HOST_IPV6 = INVALID_TAG - PEER_PORT = INVALID_TAG - PEER_SERVICE = INVALID_TAG - SAMPLING_PRIORITY = INVALID_TAG - SERVICE = INVALID_TAG - SPAN_KIND = INVALID_TAG - SPAN_KIND_CONSUMER = INVALID_TAG - SPAN_KIND_PRODUCER = INVALID_TAG - SPAN_KIND_RPC_CLIENT = INVALID_TAG - SPAN_KIND_RPC_SERVER = INVALID_TAG + with scope: + result = yield defer.maybeDeferred(func, request, *args, **kwargs) + return result + return _trace_servlet_inner -tags = _DummyTagNames + return _trace_servlet_inner_1 diff --git a/synapse/replication/http/_base.py b/synapse/replication/http/_base.py index 2e0594e581..c4be9273f6 100644 --- a/synapse/replication/http/_base.py +++ b/synapse/replication/http/_base.py @@ -22,6 +22,7 @@ from six.moves import urllib from twisted.internet import defer +import synapse.logging.opentracing as opentracing from synapse.api.errors import ( CodeMessageException, HttpResponseException, @@ -165,8 +166,12 @@ class ReplicationEndpoint(object): # have a good idea that the request has either succeeded or failed on # the master, and so whether we should clean up or not. while True: + headers = {} + opentracing.inject_active_span_byte_dict( + headers, None, check_destination=False + ) try: - result = yield request_func(uri, data) + result = yield request_func(uri, data, headers=headers) break except CodeMessageException as e: if e.code != 504 or not cls.RETRY_ON_TIMEOUT: @@ -205,7 +210,14 @@ class ReplicationEndpoint(object): args = "/".join("(?P<%s>[^/]+)" % (arg,) for arg in url_args) pattern = re.compile("^/_synapse/replication/%s/%s$" % (self.NAME, args)) - http_server.register_paths(method, [pattern], handler, self.__class__.__name__) + http_server.register_paths( + method, + [pattern], + opentracing.trace_servlet(self.__class__.__name__, extract_context=True)( + handler + ), + self.__class__.__name__, + ) def _cached_handler(self, request, txn_id, **kwargs): """Called on new incoming requests when caching is enabled. Checks |