[HDFS-16837] [RBF SBN] ClientGSIContext should merge RouterFederatedStates to get the max state id for each namespace

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: rbf
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: ZanderXu
• Reporter: ZanderXu
• Created: 10/Nov/22 11:10
• Updated: 28/Jan/24 07:53
• Resolved: 05/Dec/22 08:18

Description

ClientGSIContext should merge local and remote RouterFederatedState to get the max state id for each namespace.

And the related code as bellows:

@Override
public synchronized void receiveResponseState(RpcResponseHeaderProto header) {
  if (header.hasRouterFederatedState()) {
    // BUG here
    routerFederatedState = header.getRouterFederatedState();
  } else {
    lastSeenStateId.accumulate(header.getStateId());
  }
} 

Issue Links

• is caused by: HDFS-13522 HDFS-13522: Add federated nameservices states to client protocol and propagate it between routers and clients.
• relates to: HDFS-13522 HDFS-13522: Add federated nameservices states to client protocol and propagate it between routers and clients.
• links to: GitHub Pull Request #5123