apache/hadoop · error · RuntimeException

Could not create ZK paths

Error message

Could not create ZK paths

What it means

Error "Could not create ZK paths" thrown in apache/hadoop.

Source

Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java:288

      currentMaxSeqNum = currentSeqNum + seqNumBatchSize;
      LOG.info("Fetched initial range of seq num, from {} to {} ",
          currentSeqNum+1, currentMaxSeqNum);
    } catch (Exception e) {
      throw new IOException("Could not start Sequence Counter", e);
    }
    try {
      keyIdSeqCounter = new SharedCount(zkClient, ZK_DTSM_KEYID_ROOT, 0);
      if (keyIdSeqCounter != null) {
        keyIdSeqCounter.start();
      }
    } catch (Exception e) {
      throw new IOException("Could not start KeyId Counter", e);
    }
    try {
      createPersistentNode(ZK_DTSM_MASTER_KEY_ROOT);
      createPersistentNode(ZK_DTSM_TOKENS_ROOT);
    } catch (Exception e) {
      throw new RuntimeException("Could not create ZK paths");
    }
    try {
      keyCache = CuratorCache.bridgeBuilder(zkClient, ZK_DTSM_MASTER_KEY_ROOT)
          .build();
      CuratorCacheListener keyCacheListener = CuratorCacheListener.builder()
          .forCreatesAndChanges((oldNode, node) -> {
            try {
              processKeyAddOrUpdate(node.getData());
            } catch (IOException e) {
              LOG.error("Error while processing Curator keyCacheListener "
                  + "NODE_CREATED / NODE_CHANGED event");
              throw new UncheckedIOException(e);
            }
          })
          .forDeletes(childData -> processKeyRemoved(childData.getPath()))
          .build();
      keyCache.listenable().addListener(keyCacheListener);
      keyCache.start();

View on GitHub (pinned to 2add963021)

Solutions

1. Creating the working ZK paths failed. Ensure the parent znode exists and the configured auth has CREATE permission under the namespace.

When it happens

Trigger: Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/ZKDelegationTokenSecretManager.java:288 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/a60ff3e2a914bb94. Report an issue: GitHub.