because Subsegment too long then trace log daemonSocket.send error

[feizhangyong]

when file download
Subsegment is too long
daemonSocket.send error

→ I want to fix it

then error is fixed
→ db trace logs are nothing

[willarmiros]

Hi @feizhangyong - feel free to submit a PR if you have a fix for this issue ready!

[feizhangyong]

@willarmiros
sorry ,not fix it
①BatchBaseApplication.java
AWSXRayRecorderBuilder builder = AWSXRayRecorderBuilder.standard().withDefaultPlugins().withSamplingStrategy(new
NoSamplingStrategy()).withSegmentListener(new SLF4JSegmentListener());

②log is too long ,so i change the log

these log are changed, sizes are ok

③after endSegment,
segment.subsegmentsList sizes also be too long
why?

[feizhangyong]

trace map and trace logs can be see,

The log (too long) part is not output to trace log

[willarmiros]

If you are getting subsegment too long errors, it is likely because the metadata you are adding is too big to fit into a UDP socket which is 64 KB. I would suggest removing or trimming the metadata you're adding to be less than 64 kB.

[feizhangyong]

thank you
control →service → logic
parent son grandson

add this, Asserting Parent-Child Relationships of Classes

@Override
protected Object processXRayTrace(ProceedingJoinPoint pjp) throws Throwable {
	Subsegment subsegment = AWSXRay.beginSubsegment(pjp.getSignature().getDeclaringTypeName() + "." + pjp.getSignature().getName());
	**subsegment.setParentId(subsegment.getParentSegment().getId());**

UDPEmitter overwrite it
loop Subsegment,
Iterator iterator = subsegment.getSubsegments().iterator();
while (iterator.hasNext()) {
Subsegment childSubsegment = iterator.next();
sendSubsegment(childSubsegment);
iterator.remove();

→After the top-level response is completed, it is possible to resolve this issue.

[feizhangyong]

message too long
are fixed
should i need to post a pullrequest to overwrite UDPEmitter ?
@willarmiros

[feizhangyong]

If you are getting subsegment too long errors, it is likely because the metadata you are adding is too big to fit into a UDP socket which is 64 KB. I would suggest removing or trimming the metadata you're adding to be less than 64 kB.
@willarmiros

thank you ,

[willarmiros]

No need for a PR here - glad the issue was resolved!