Hi,
Does anyone know why does TraceIdContext:: toTraceIdString return a 16-digit value if the high bytes are all zero and a 32-digit value otherwise?
This seems very intentional but pretty weird, e.g.: if I have two IDs:
0000000000000000123456789abcdef00000000000000001123456789abcdef0
(The only difference is in the high bites, the first is all the way zero, the second is one in the last place)
I will get:
123456789abcdef00000000000000001123456789abcdef0
Which is weird to me and also can lead issues if the user expects a fixed-length value from that method.
39 replies
try {
Enumeration<NetworkInterface> nics = NetworkInterface.getNetworkInterfaces();
while (nics.hasMoreElements()) {
NetworkInterface nic = nics.nextElement();
Enumeration<InetAddress> addresses = nic.getInetAddresses();
while (addresses.hasMoreElements()) {
InetAddress address = addresses.nextElement();
if (address.isSiteLocalAddress()) return address.getHostAddress();
}
}
} catch (Exception e) {
// don't crash the caller if there was a problem reading nics.
log("error reading nics", e);
}
return null;
}
1 reply
Trying to implement cassandra tracing using https://github.com/openzipkin/brave-cassandra/tree/master/cassandra#server. Readme says "The easiest way to get started is to place this project's "all" jar in cassandra's lib directory”
what’s “all" jar?
2 replies
Hello, is it normal for the first service (frontend) of an application to be left out by zipkin dependencies ?
i have 3 services running in kubernetes :
service1 exposed to the world, it calls service2, then service2 calls service 3
in the discover page, i see the 3 services calling each other, but in the dependency, i only see service2 and 3
zipkin-dependency debug log shows "20/12/22 10:04:35 DEBUG DependencyLinker: root's client is unknown; skipping" when parsing service1 trace,
does that ring something to someone ? am i missing something ?
9 replies
5 replies
1 reply
1 reply
I also have another question about processing trace data for application monitoring. I have seen different backend support like skywalking on openzipkin page. Im also considering using elk stack for extracting useful monitoring data from traces. Are there any other suggestions for zipkin data processing and extracting monitoring data. (I'm still searching which tool to use for this and for best practices)
Im still new to tracing concepts and trying to learn how these should work. So, some of my questions might not makes sense. Sorry for those in advance
1 reply
ZIPKIN_DSN = os.environ.get("ZIPKIN_DSN", "http://zipkin:9411/api/v2/spans")
def default_handler(encoded_span):
body = encoded_span
app.logger.debug("body %s", body)
return requests.post(
ZIPKIN_DSN,
data=body,
headers={"Content-Type": "application/json"},
)
1 reply
1 reply
hello guys.. I recently installed zipkin server and integrated it with 4 microservices (out of dozens waiting for the integration) ... my server configuration for zipkin is 8 CPUs and 8GB RAM ... but it seems the server is burning the CPU down ... when I issue the TOP command it gives me 500% usage of zipkin service running .... the zipkin gui is pretty much unusable.. i can access it on IP:9411/zipkin/ but when I hit dependencies or trace .. it keeps on loading in the middle and shows nothing...
Any idea why it is so CPU expensive ???
6 replies
java -DSTORAGE_TYPE=elasticsearch -DES_SSL_NO_VERIFY=true -DES_HOSTS=https://node1.elastic.com:9500 -DES_HTTP_LOGGING=BASIC -DES_USERNAME=elastic -DES_PASSWORD=xxx -jar zipkin-server*.jar, but it doesn`t work. It log com.linecorp.armeria.client.endpoint.EmptyEndpointGroupException, and elasticsearch log javax.net.ssl.SSLHandshakeException: no cipher suites in common. Can anyone resolved it , thank you very much!
hi
I am bringing in my kafka instrumentation to zipkin.
what is recommended: Brave: Kafka Interceptor(https://github.com/openzipkin-contrib/brave-kafka-interceptor) or Brave Kafka instrumentation(https://github.com/openzipkin/brave/tree/master/instrumentation/kafka-clients)
1 reply