slievrly commented on code in PR #7005:
URL: https://github.com/apache/incubator-seata/pull/7005#discussion_r1845494242


##########
server/src/main/java/org/apache/seata/server/coordinator/DefaultCore.java:
##########
@@ -308,65 +321,75 @@ public GlobalStatus rollback(String xid) throws 
TransactionException {
 
     @Override
     public boolean doGlobalRollback(GlobalSession globalSession, boolean 
retrying) throws TransactionException {
-        boolean success = true;
-        // start rollback event
-        MetricsPublisher.postSessionDoingEvent(globalSession, retrying);
+        return SessionHolder.lockAndExecute(globalSession, () -> {

Review Comment:
   Expect lock-free implementation to reduce code complexity and increase 
maintainability.



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