Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/2183#discussion_r69153934
--- Diff:
flink-streaming-connectors/flink-connector-cassandra/src/main/java/org/apache/flink/streaming/connectors/cassandra/CassandraTupleWriteAheadSink.java
---
@@ -110,11 +92,25 @@ public void close() throws Exception {
}
@Override
- protected void sendValues(Iterable<IN> values, long timestamp) throws
Exception {
- //verify that no query failed until now
- if (exception != null) {
- throw new Exception(exception);
- }
+ protected boolean sendValues(Iterable<IN> values, long timestamp)
throws Exception {
+ int updatesSent = 0;
+ final AtomicInteger updatesConfirmed = new AtomicInteger(0);
+
+ final AtomicContainer<Throwable> exception = new
AtomicContainer<>();
+
+ FutureCallback<ResultSet> callback = new
FutureCallback<ResultSet>() {
+ @Override
+ public void onSuccess(ResultSet resultSet) {
+ updatesConfirmed.incrementAndGet();
+ }
+
+ @Override
+ public void onFailure(Throwable throwable) {
+ exception.set(throwable);
--- End diff --
Do we always want to report the last set exception or the first exception
which occurred? In the latter case we would have to use the
`AtomicReference#compareAndSet(null, throwable)` method.
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