SpringCloud/spring-cloud-sleuth
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buildmaster
2017-11-22 14:27:33 +00:00
parent 18392ddc23
commit ab50acf11a
3 changed files with 42 additions and 3 deletions
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15
spring-cloud-sleuth.xml
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@@ -1233,7 +1233,20 @@ TraceFilter myTraceFilter(BeanFactory beanFactory, final Tracer tracer) {
<simpara>Sometimes you want to create a manual Span that will wrap a call to an external service which is not instrumented.
What you can do is to create a span with the <literal>peer.service</literal> tag that will contain a value of the service that you want to call.
Below you can see an example of a call to Redis that is wrapped in such a span.</simpara>
<programlisting language="java" linenumbering="unnumbered">Unresolved directive in spring-cloud-sleuth.adoc - include::../../../..//spring-cloud-sleuth-zipkin/src/test/java/org/springframework/cloud/sleuth/zipkin/HttpZipkinSpanReporterTest.java[tags=service_name,indent=0]</programlisting>
<programlisting language="java" linenumbering="unnumbered">org.springframework.cloud.sleuth.Span newSpan = tracer.createSpan("redis");
try {
newSpan.tag("redis.op", "get");
newSpan.tag("lc", "redis");
newSpan.logEvent(org.springframework.cloud.sleuth.Span.CLIENT_SEND);
// call redis service e.g
// return (SomeObj) redisTemplate.opsForHash().get("MYHASH", someObjKey);
} finally {
newSpan.tag("peer.service", "redisService");
newSpan.tag("peer.ipv4", "1.2.3.4");
newSpan.tag("peer.port", "1234");
newSpan.logEvent(org.springframework.cloud.sleuth.Span.CLIENT_RECV);
tracer.close(newSpan);
}</programlisting>
<important>
<simpara>Remember not to add both <literal>peer.service</literal> tag and the <literal>SA</literal> tag! You have to add only <literal>peer.service</literal>.</simpara>
</important>