apache/hadoop · error · UnsupportedOperationException

Cannot call getEZForPath on a symlink to a non-DistributedFi

Error message

Cannot call getEZForPath on a symlink to a non-DistributedFileSystem: {} -> {}

What it means

Error "Cannot call getEZForPath on a symlink to a non-DistributedFileSystem: {} -> {}" thrown in apache/hadoop.

Source

Thrown at hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java:3011

      throws IOException {
    statistics.incrementReadOps(1);
    storageStatistics.incrementOpCounter(OpType.GET_ENCRYPTION_ZONE);
    Preconditions.checkNotNull(path);
    Path absF = fixRelativePart(path);
    return new FileSystemLinkResolver<EncryptionZone>() {
      @Override
      public EncryptionZone doCall(final Path p) throws IOException {
        return dfs.getEZForPath(getPathName(p));
      }

      @Override
      public EncryptionZone next(final FileSystem fs, final Path p)
          throws IOException {
        if (fs instanceof DistributedFileSystem) {
          DistributedFileSystem myDfs = (DistributedFileSystem) fs;
          return myDfs.getEZForPath(p);
        } else {
          throw new UnsupportedOperationException(
              "Cannot call getEZForPath"
                  + " on a symlink to a non-DistributedFileSystem: " + path
                  + " -> " + p);
        }
      }
    }.resolve(this, absF);
  }

  /* HDFS only */
  public RemoteIterator<EncryptionZone> listEncryptionZones()
      throws IOException {
    statistics.incrementReadOps(1);
    storageStatistics.incrementOpCounter(OpType.LIST_ENCRYPTION_ZONE);
    return dfs.listEncryptionZones();
  }

  /* HDFS only */
  public void reencryptEncryptionZone(final Path zone,

View on GitHub (pinned to 2add963021)

Solutions

1. Call getEZForPath on the resolved HDFS path, not a symlink to another filesystem.
2. Verify the path belongs to a DistributedFileSystem before querying its encryption zone.

When it happens

Trigger: getEZForPath is invoked through a symlink whose target is not a DistributedFileSystem, so no encryption zone information is available.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/da05d41d5a54e029. Report an issue: GitHub.