DelegationKey key = new DelegationKey();
key.readFields(fsIn);
rmState.rmSecretManagerState.masterKeyState.add(key);
} else if (childNodeName.startsWith(DELEGATION_TOKEN_PREFIX)) {
RMDelegationTokenIdentifier identifier = new RMDelegationTokenIdentifier();
identifier.readFields(fsIn);
long renewDate = fsIn.readLong();
rmState.rmSecretManagerState.delegationTokenState.put(identifier,
renewDate);
} else {
LOG.warn("Unknown file for recovering RMDelegationTokenSecretManager");