tracing: If parent span is propagated with empty string, it causes th… #6263
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…e next child span to not be created (i.e. returns null span) Signed-off-by: Gary Brown <gary@brownuk.com>
Signed-off-by: Gary Brown <gary@brownuk.com>
spenceral
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* master: (59 commits) http fault: add response rate limit injection (envoyproxy#6267) xds: introduce initial_fetch_timeout option to limit initialization time (envoyproxy#6048) test: fix cpuset-threads tests (envoyproxy#6278) server: add an API for registering for notifications for server instance life… (envoyproxy#6254) remove remains of TestBase (envoyproxy#6286) dubbo_proxy: Implement the routing of Dubbo requests (envoyproxy#5973) Revert "stats: add new BoolIndicator stat type (envoyproxy#5813)" (envoyproxy#6280) runtime: codifying runtime guarded features (envoyproxy#6134) mysql_filter: fix integration test flakes (envoyproxy#6272) tls: update BoringSSL to debed9a4 (3683). (envoyproxy#6273) rewrite buffer implementation to eliminate evbuffer dependency (envoyproxy#5441) Remove the dependency from TimeSystem to libevent by using the Event::Scheduler abstraction as a delegate. (envoyproxy#6240) fuzz: fix use of literal in default initialization. (envoyproxy#6268) http: add HCM functionality required for rate limiting (envoyproxy#6242) Disable mysql_integration_test until it is deflaked. (envoyproxy#6250) test: use ipv6_only IPv6 addresses in custom cluster integration tests. (envoyproxy#6260) tracing: If parent span is propagated with empty string, it causes th… (envoyproxy#6263) upstream: fix oss-fuzz issue envoyproxy#11095. (envoyproxy#6220) Wire up panic mode subset to receive updates (envoyproxy#6221) docs: clarify xds docs with warming information (envoyproxy#6236) ...
duderino
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Mar 22, 2019
* Update API and import envoyproxy/envoy#6263 * Update istio/api
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…e next child span to not be created (i.e. returns null span)
Signed-off-by: Gary Brown gary@brownuk.com
Description:
Found an issue in Istio where if a service forwards an empty parent span id header, it results in the subsequent envoy proxy not creating a span for the outbound request, simply propagating the B3 headers to the next proxy handling the inbound request, which similarly has a problem creating a child span due to the same empty parent span id, etc.
See istio/istio#11696 for more information.
Risk Level: Low
Testing: Unit test to confirm span created even with empty parent span id.
Docs Changes: no
Release Notes: no
[Optional Fixes #Issue]
[Optional Deprecated:]