apache/hadoop · error · IOException

Problem removing ${name} from ${this}

Error message

Problem removing ${name} from ${this}

What it means

After removing all version entries, deleteKey removes the base-name alias that holds the key's Metadata; a KeyStoreException there is wrapped as 'Problem removing <name> from <uri>'. If this fires, version entries may already be gone while the metadata alias remains, so the key is only half-deleted until a successful retry.

Source

Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/JavaKeyStoreProvider.java:486

        throw new IOException("Key " + name + " does not exist in " + this);
      }
      for(int v=0; v < meta.getVersions(); ++v) {
        String versionName = buildVersionName(name, v);
        try {
          if (keyStore.containsAlias(versionName)) {
            keyStore.deleteEntry(versionName);
          }
        } catch (KeyStoreException e) {
          throw new IOException("Problem removing " + versionName + " from " +
              this, e);
        }
      }
      try {
        if (keyStore.containsAlias(name)) {
          keyStore.deleteEntry(name);
        }
      } catch (KeyStoreException e) {
        throw new IOException("Problem removing " + name + " from " + this, e);
      }
      cache.remove(name);
      changed = true;
    } finally {
      writeLock.unlock();
    }
  }

  KeyVersion innerSetKeyVersion(String name, String versionName, byte[] material,
                                String cipher) throws IOException {
    try {
      keyStore.setKeyEntry(versionName, new SecretKeySpec(material, cipher),
          password, null);
    } catch (KeyStoreException e) {
      throw new IOException("Can't store key " + versionName + " in " + this,
          e);
    }
    changed = true;

View on GitHub (pinned to 2add963021)

Solutions

1. Retry deleteKey once the store is healthy: it will re-run both loops and finish removing the metadata alias
2. Verify with `hadoop key list -provider <uri>` that the alias is really gone
3. Restore the keystore from backup if the store is corrupt

try { provider.deleteKey(name); } catch (IOException e) { if (String.valueOf(e.getMessage()).startsWith("Problem removing " + name)) { // metadata alias may remain: verify with getMetadata and retry after store repair } throw e; }

When it happens

Trigger: Same keystore-level failures as the version loop: corrupt or degraded store, provider rejection, concurrent writers; this specific message means the failure happened on the final metadata-alias removal.

Common situations: Corruption hitting mid-delete; keystores on flaky storage; another process renaming/rewriting the keystore file during the delete.

Related errors

• Problem removing ${versionName} from ${this}
• Can't store key ${versionName} in ${this}
• Can't store keystore ${this}
• Can't set metadata key ${entry.getKey()}
• Wrong key length. Required ${options.getBitLength()}, but go

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/999f90d08220d617. Report an issue: GitHub.