apache/hadoop · error · InvalidRequestException

Filtering by replication is unsupported.

Error message

Filtering by replication is unsupported.

What it means

Error "Filtering by replication is unsupported." thrown in apache/hadoop.

Source

Thrown at hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/CacheManager.java:751

    } catch (IOException e) {
      LOG.warn("removeDirective of " + id + " failed: ", e);
      throw e;
    }
    LOG.info("removeDirective of " + id + " successful.");
  }

  public BatchedListEntries<CacheDirectiveEntry> 
        listCacheDirectives(long prevId,
            CacheDirectiveInfo filter,
            FSPermissionChecker pc) throws IOException {
    assert namesystem.hasReadLock(RwLockMode.FS);
    final int NUM_PRE_ALLOCATED_ENTRIES = 16;
    String filterPath = null;
    if (filter.getPath() != null) {
      filterPath = validatePath(filter);
    }
    if (filter.getReplication() != null) {
      throw new InvalidRequestException(
          "Filtering by replication is unsupported.");
    }

    // Querying for a single ID
    final Long id = filter.getId();
    if (id != null) {
      if (!directivesById.containsKey(id)) {
        throw new InvalidRequestException("Did not find requested id " + id);
      }
      // Since we use a tailMap on directivesById, setting prev to id-1 gets
      // us the directive with the id (if present)
      prevId = id - 1;
    }

    ArrayList<CacheDirectiveEntry> replies =
        new ArrayList<CacheDirectiveEntry>(NUM_PRE_ALLOCATED_ENTRIES);
    int numReplies = 0;
    SortedMap<Long, CacheDirective> tailMap =

View on GitHub (pinned to 2add963021)

Solutions

1. Remove the replication filter from the listDirectives query; filtering by replication is not supported.

When it happens

Trigger: listCacheDirectives with a replication filter, which is not supported.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/0f3a1601c3481866. Report an issue: GitHub.