wu-sheng commented on a change in pull request #6715:
URL: https://github.com/apache/skywalking/pull/6715#discussion_r611621944
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File path:
apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/context/trace/TraceSegment.java
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@@ -39,13 +39,13 @@
private String traceSegmentId;
/**
- * The refs of parent trace segments, except the primary one. For most RPC
call, {@link #refs} contains only one
+ * The refs of parent trace segments, except the primary one. For most RPC
call, {@link #traceSegmentRef} contains only one
* element, but if this segment is a start span of batch process, the
segment faces multi parents, at this moment,
- * we use this {@code #refs} to link them.
+ * we only related the first parent TraceSegment.
Review comment:
```suggestion
* we only cached the first parent segment reference.
```
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