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https://issues.apache.org/jira/browse/HDFS-14999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephen O'Donnell updated HDFS-14999:
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Fix Version/s: 3.3.1
> Avoid Potential Infinite Loop in DFSNetworkTopology
> ---------------------------------------------------
>
> Key: HDFS-14999
> URL: https://issues.apache.org/jira/browse/HDFS-14999
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Fix For: 3.3.1, 3.4.0
>
> Attachments: HDFS-14999-01.patch
>
>
> {code:java}
> do {
> chosen = chooseRandomWithStorageTypeAndExcludeRoot(root, excludeRoot,
> type);
> if (excludedNodes == null || !excludedNodes.contains(chosen)) {
> break;
> } else {
> LOG.debug("Node {} is excluded, continuing.", chosen);
> }
> } while (true);
> {code}
> Observed this loop getting stuck as part of testing HDFS-14913.
> There should be some exit condition or max retries here
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