gguptp commented on code in PR #195:
URL:
https://github.com/apache/flink-connector-aws/pull/195#discussion_r2028304276
##########
flink-connector-aws/flink-connector-aws-kinesis-streams/src/main/java/org/apache/flink/connector/kinesis/source/reader/polling/PollingKinesisShardSplitReader.java:
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@@ -40,6 +47,14 @@ public class PollingKinesisShardSplitReader extends
KinesisShardSplitReaderBase
private final Configuration configuration;
private final int maxRecordsToGet;
+ private final long getRecordsIntervalMillis;
+
+ private final long idleSourceGetRecordsIntervalMillis;
+
+ private long scheduledGetRecordTimeMillis = 0;
Review Comment:
hmm, given `PollingKinesisShardSplitReader` is a child class of
`KinesisShardSplitReaderBase` doesnt this variable get shared between all the
shards rather than just one particular shard?
Won't the behaviour become like this:
Shard 1 - empty poll (scheduledGetRecordTimeMillis = T+250 millis)
Shard 2 - empty poll (scheduledGetRecordTimeMillis = T1+250 millis)
...
and so on
now theres a chance that shard 1 comes up later and although it should have
been called with getrecords but since n shards came and the new
scheduledGetRecordTimeMillis becomes much more than the actual
shceduledGetRecordTimeMillis for shard 1 and this might lead to starvation of
all the shards?
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