Poorvankbhatia commented on code in PR #26274:
URL: https://github.com/apache/flink/pull/26274#discussion_r1991890366
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flink-connectors/flink-connector-base/src/main/java/org/apache/flink/connector/base/sink/writer/AsyncSinkWriter.java:
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@@ -101,19 +101,25 @@ public abstract class AsyncSinkWriter<InputT,
RequestEntryT extends Serializable
/**
* Buffer to hold request entries that should be persisted into the
destination, along with its
- * size in bytes.
+ * total size in bytes.
*
- * <p>A request entry contain all relevant details to make a call to the
destination. Eg, for
- * Kinesis Data Streams a request entry contains the payload and partition
key.
+ * <p>This buffer is managed using {@link BufferWrapper}, allowing sink
implementations to
+ * define their own optimized buffering strategies. By default, {@link
DequeBufferWrapper} is
+ * used.
*
- * <p>It seems more natural to buffer InputT, ie, the events that should
be persisted, rather
- * than RequestEntryT. However, in practice, the response of a failed
request call can make it
- * very hard, if not impossible, to reconstruct the original event. It is
much easier, to just
- * construct a new (retry) request entry from the response and add that
back to the queue for
- * later retry.
+ * <p>The buffer stores {@link RequestEntryWrapper} objects rather than
raw {@link
+ * RequestEntryT} instances, as buffering wrapped entries allows for
better tracking of size and
+ * metadata. This also makes it easier to handle retries by reinserting
failed entries back into
Review Comment:
Modified this.
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