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  1. Hadoop HDFS
  2. HDFS-14999

Avoid Potential Infinite Loop in DFSNetworkTopology

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 3.3.1, 3.4.0
    • None
    • None
    • Reviewed

    Description

          do {
            chosen = chooseRandomWithStorageTypeAndExcludeRoot(root, excludeRoot,
                type);
            if (excludedNodes == null || !excludedNodes.contains(chosen)) {
              break;
            } else {
              LOG.debug("Node {} is excluded, continuing.", chosen);
            }
          } while (true);
      

      Observed this loop getting stuck as part of testing HDFS-14913.

      There should be some exit condition or max retries here

      Attachments

        1. HDFS-14999-01.patch
          5 kB
          Ayush Saxena

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              ayushtkn Ayush Saxena
              ayushtkn Ayush Saxena
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              Dates

                Created:
                Updated:
                Resolved: