[HDFS-14079] RBF: RouterAdmin should have failover concept for router

• Type: Sub-task
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.1.1
• Assignee: Surendra Singh Lilhore
• Reporter: Surendra Singh Lilhore
• Created: 14/Nov/18 12:32
• Updated: 25/Jun/19 05:51

Description

Currenlty RouterAdmin connect with only one router for admin operation, if the configured router is down then router admin command is failing. It should allow to configure all the router admin address.

    // Initialize RouterClient
    try {
      String address = getConf().getTrimmed(
          RBFConfigKeys.DFS_ROUTER_ADMIN_ADDRESS_KEY,
          RBFConfigKeys.DFS_ROUTER_ADMIN_ADDRESS_DEFAULT);
      InetSocketAddress routerSocket = NetUtils.createSocketAddr(address);
      client = new RouterClient(routerSocket, getConf());
    } catch (RPC.VersionMismatch v) {
      System.err.println(
          "Version mismatch between client and server... command aborted");
      return exitCode;
    }