bitflicker64 commented on code in PR #3232:
URL: https://github.com/apache/hugegraph/pull/3232#discussion_r4090999317


##########
hugegraph-store/hg-store-node/src/main/java/org/apache/hugegraph/store/node/controller/PartitionAPI.java:
##########
@@ -87,8 +87,9 @@ public Map<String, Object> getPartitions(
             raft.setGroupId(engine.getGroupId());
             raft.setLeader(engine.getLeader());
             raft.setRole(engine.getRaftNode().getNodeState().name());
-            raft.setConf(engine.getCurrentConf().toString());
+            // jraft only lists peers and learners on the leader
             if (engine.isLeader()) {
+                raft.setConf(engine.getCurrentConf().toString());

Review Comment:
   Fixed in 8dd3665. The three leader-only calls now run in one `try` block and 
are set only if all succeed; on `IllegalStateException` the group is logged and 
left like a follower (`conf`, `peers`, `learners` null). Added 
`testGetPartitionsWhenLeaderStepsDown`, where `isLeader()` returns true and the 
node methods throw: it fails on fc017f8 with `Not leader` and passes now. 
hg-store-node tests: 9 run, 0 failures.
   



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