[YARN-1860] cancelDelegationToken should survive RM failover

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Zhijie Shen
• Reporter: Zhijie Shen
• Created: 21/Mar/14 00:02
• Updated: 21/Mar/14 00:02

Description

The problem of cancelDelegationToken is a bit different from that of renewDelegationToken. Say when the cancel op is almost done (AbstractDelegationTokenSecretManager removes the DT from its cache, and RMStateStore removes it form FS/ZK), and just before returning response to the client, RM failover. The new AbstractDelegationTokenSecretManager cache will not have the DT, and the following cancelDelegationToken will fail at

    if (info == null) {
      throw new InvalidToken("Token not found");
    }

in AbstractDelegationTokenSecretManager#cancelToken