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Posted to dev@curator.apache.org by "Mike Drob (JIRA)" <ji...@apache.org> on 2016/02/26 00:41:18 UTC
[jira] [Updated] (CURATOR-262) Issue with ExponentialBackoffRetry
[ https://issues.apache.org/jira/browse/CURATOR-262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mike Drob updated CURATOR-262:
------------------------------
Labels: newbie (was: )
> Issue with ExponentialBackoffRetry
> ----------------------------------
>
> Key: CURATOR-262
> URL: https://issues.apache.org/jira/browse/CURATOR-262
> Project: Apache Curator
> Issue Type: Bug
> Reporter: Dimitar Dyankov
> Assignee: Jordan Zimmerman
> Labels: newbie
>
> Hi,
> Looking at the ExponentialBackOff Strategy for the apache curator I found this issue :
> @Override
> protected int getSleepTimeMs(int retryCount, long elapsedTimeMs)
> {
> // copied from Hadoop's RetryPolicies.java
> int sleepMs = baseSleepTimeMs * Math.max(1, random.nextInt(1 << (retryCount + 1)));
> if ( sleepMs > maxSleepMs )
> {
> log.warn(String.format("Sleep extension too large (%d). Pinning to %d", sleepMs, maxSleepMs));
> sleepMs = maxSleepMs;
> }
> return sleepMs;
> }
> since sleepMs is an Integer and retryCount could be as large as 29 we could fall into an integer overflow case and therefore sleepMs being a negative number.
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