[fix] [broker] Add consumer name for subscription stats

[hangc0276]

Fixes #xyz

Main Issue: #xyz

PIP: #xyz

Motivation

When getting topic stats, the consumer name is missing in each subscription's consumer information
With this change, the topic stats will show consumer name

 "abortedTxnCount" : 0,
  "committedTxnCount" : 0,
  "publishers" : [ ],
  "waitingPublishers" : 0,
  "subscriptions" : {
    "test_sub_v1" : {
      "msgRateOut" : 303.3964745694218,
      "msgThroughputOut" : 14215.002259022087,
      "bytesOutCounter" : 140137,
      "msgOutCounter" : 2991,
      "msgRateRedeliver" : 0.0,
      "messageAckRate" : 0.0,
      "chunkedMessageRate" : 0.0,
      "msgBacklog" : 7183,
      "backlogSize" : 75322327,
      "earliestMsgPublishTimeInBacklog" : 0,
      "msgBacklogNoDelayed" : 7183,
      "blockedSubscriptionOnUnackedMsgs" : false,
      "msgDelayed" : 0,
      "msgInReplay" : 0,
      "unackedMessages" : 0,
      "type" : "Failover",
      "activeConsumerName" : "5ce36",
      "msgRateExpired" : 0.0,
      "totalMsgExpired" : 0,
      "lastExpireTimestamp" : 0,
      "lastConsumedFlowTimestamp" : 1733206320792,
      "lastConsumedTimestamp" : 1733206321845,
      "lastAckedTimestamp" : 0,
      "lastMarkDeleteAdvancedTimestamp" : 0,
      "consumers" : [ {
        "msgRateOut" : 303.3964745694218,
        "msgThroughputOut" : 14215.002259022087,
        "bytesOutCounter" : 140137,
        "msgOutCounter" : 2991,
        "msgRateRedeliver" : 0.0,
        "messageAckRate" : 0.0,
        "chunkedMessageRate" : 0.0,
        **"consumerName" : "5ce36",**. <----- This one
        "availablePermits" : -1991,
        "unackedMessages" : 0,
        "avgMessagesPerEntry" : 4,
        "blockedConsumerOnUnackedMsgs" : false,
        "drainingHashesCount" : 0,
        "drainingHashesClearedTotal" : 0,
        "drainingHashesUnackedMessages" : 0,
        "address" : "/127.0.0.1:52700",
        "connectedSince" : "2024-12-02T22:12:00.783795-08:00",
        "clientVersion" : "2.9.2",
        "lastAckedTimestamp" : 0,
        "lastConsumedTimestamp" : 1733206321845,

Modifications

Verifying this change

• Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

• doc
• doc-required
• doc-not-needed
• doc-complete

Matching PR in forked repository

PR in forked repository:

[horizonzy]

LGTM.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.37%. Comparing base (bbc6224) to head (49ea4f4).
Report is 774 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #23671      +/-   ##
============================================
+ Coverage     73.57%   74.37%   +0.79%     
- Complexity    32624    35034    +2410     
============================================
  Files          1877     1944      +67     
  Lines        139502   147332    +7830     
  Branches      15299    16258     +959     
============================================
+ Hits         102638   109577    +6939     
- Misses        28908    29291     +383     
- Partials       7956     8464     +508     

Flag	Coverage Δ
inttests	27.31% <100.00%> (+2.72%)	⬆️
systests	24.39% <100.00%> (+0.07%)	⬆️
unittests	73.74% <100.00%> (+0.90%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ava/org/apache/pulsar/broker/service/Consumer.java	85.14% <100.00%> (-1.53%)	⬇️

... and 662 files with indirect coverage changes