[HDFS-16359] RBF: RouterRpcServer#invokeAtAvailableNs does not take effect when retrying

• 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: Tao Li
• Reporter: Tao Li
• Created: 27/Nov/21 16:05
• Updated: 11/Feb/24 23:18
• Resolved: 02/Dec/21 14:11

Description

RouterRpcServer#invokeAtAvailableNs does not take effect when retrying. See HDFS-15543.

The original code of RouterRpcServer#getNameSpaceInfo looks like this:

private Set<FederationNamespaceInfo> getNameSpaceInfo(String nsId) {
  Set<FederationNamespaceInfo> namespaceInfos = new HashSet<>();
  for (FederationNamespaceInfo ns : namespaceInfos) {
    if (!nsId.equals(ns.getNameserviceId())) {
      namespaceInfos.add(ns);
    }
  }
  return namespaceInfos;
}  

And namespaceInfos is always empty here.

Issue Links

• is related to: HDFS-16369 RBF: Fix the retry logic of RouterRpcServer#invokeAtAvailableNs
• links to: GitHub Pull Request #3731