zentol commented on a change in pull request #6782: [FLINK-9083][Cassandra
Connector] Add async backpressure support to Cassandra Connector
URL: https://github.com/apache/flink/pull/6782#discussion_r235141641
##########
File path:
flink-connectors/flink-connector-cassandra/src/main/java/org/apache/flink/streaming/connectors/cassandra/CassandraSink.java
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@@ -354,6 +359,23 @@ protected Cluster buildCluster(Cluster.Builder builder) {
return this;
}
+ /**
+ * Sets the maximum allowed number of concurrent requests for
this sink.
+ *
+ * <p>This call has no effect if {@link
CassandraSinkBuilder#enableWriteAheadLog()} is called.
+ *
+ * @param maxConcurrentRequests maximum number of concurrent
requests allowed
+ * @param timeout timeout duration when acquiring a permit to
execute
+ * @param unit timeout unit when acquiring a permit to execute
+ * @return this builder
+ */
+ public CassandraSinkBuilder<IN> setMaxConcurrentRequests(int
maxConcurrentRequests, long timeout, TimeUnit unit) {
Review comment:
I would use java 8 `Duration` here.
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