in ons-core/ons-trace-core/src/main/java/org/apache/rocketmq/ons/open/trace/core/common/OnsTraceContext.java [157:167]
public String toString() {
StringBuilder sb = new StringBuilder(1024);
sb.append(traceType).append("_").append(groupName)
.append("_").append(regionId).append("_").append(isSuccess).append("_");
if (traceBeans != null && traceBeans.size() > 0) {
for (OnsTraceBean bean : traceBeans) {
sb.append(bean.getMsgId() + "_" + bean.getTopic() + "_");
}
}
return "OnsTraceContext{" + sb.toString() + '}';
}