Github user hmcl commented on a diff in the pull request:
https://github.com/apache/storm/pull/1924#discussion_r99869121
--- Diff:
external/storm-kafka-client/src/main/java/org/apache/storm/kafka/spout/KafkaSpoutRetryExponentialBackoff.java
---
@@ -27,13 +27,15 @@
import java.util.Comparator;
import java.util.HashSet;
import java.util.Iterator;
+import java.util.Objects;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.TimeUnit;
+import org.apache.storm.utils.Time;
/**
* Implementation of {@link KafkaSpoutRetryService} using the exponential
backoff formula. The time of the nextRetry is set as follows:
- * nextRetry = failCount == 1 ? currentTime + initialDelay : currentTime +
delayPeriod^(failCount-1) where failCount = 1, 2, 3, ...
+ * nextRetry = failCount == 1 ? currentTime + initialDelay : currentTime +
delayPeriod*2^(failCount-1) where failCount = 1, 2, 3, ...
* nextRetry = Min(nextRetry, currentTime + maxDelay)
--- End diff --
OK.
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