nodece commented on code in PR #25536:
URL: https://github.com/apache/pulsar/pull/25536#discussion_r3091369753


##########
pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LoadBalancerTest.java:
##########
@@ -708,18 +711,19 @@ public void testLeaderElection() throws Exception {
                 }
             }
             // Make sure all brokers see the same leader
-            log.info("Old leader is : {}", oldLeader.getBrokerId());
+            log.info().attr("brokerId", oldLeader.getBrokerId()).log("Old 
leader");

Review Comment:
   **`"Old leader"` lost the "is" context from `"Old leader is : {}"` — the 
message now reads ambiguously without the verb.**
   
   ```suggestion
               log.info().attr("brokerId", oldLeader.getBrokerId()).log("Old 
leader is");
   ```



##########
pulsar-broker/src/test/java/org/apache/pulsar/broker/loadbalance/LoadBalancerTest.java:
##########
@@ -432,8 +433,10 @@ public void testTopicAssignmentWithExistingBundles() 
throws Exception {
 
             long expectedValue = expectedAssignments[i];
             double variation = Math.abs(actualValue - expectedValue) * 100.0 / 
expectedValue;
-            log.info("Topic assignment - {}, actual: {}, expected baseline: 
{}, variation: {}/%",
-                    lookupAddresses[i], actualValue, expectedValue, 
String.format("%.2f", variation));
+            log.info().attr("address", lookupAddresses[i]).attr("actual", 
actualValue)
+                    .attr("expectedBaseline", expectedValue)
+                    .attr("variation", String.format("%.2f", variation))

Review Comment:
   **`"variation"` attr lost the `%` unit from the original `"variation: {}/% 
"` message.**
   
   Suggestion: rename the attr to make the unit self-documenting:
   ```suggestion
                       .attr("variationPct", String.format("%.2f", variation))
   ```



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