kfaraz commented on a change in pull request #12235:
URL: https://github.com/apache/druid/pull/12235#discussion_r808620269
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File path:
extensions-core/kinesis-indexing-service/src/main/java/org/apache/druid/indexing/kinesis/supervisor/KinesisSupervisor.java
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@@ -88,6 +91,11 @@
private final AWSCredentialsConfig awsCredentialsConfig;
private volatile Map<String, Long> currentPartitionTimeLag;
+ // Maintain sets of currently closed shards to find "bad" (closed and empty)
shards
+ // Poll closed shards once and store the result to avoid redundant costly
calls to kinesis
+ private final Set<String> emptyClosedShardIds = new TreeSet<>();
Review comment:
Thanks for pointing this out, @zachjsh.
I think a ConcurrentHashSet would suffice here.
cc: @AmatyaAvadhanula
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