[fix][test]Fix flaky test DispatcherBlockConsumerTest.testBrokerSubscriptionRecovery

[poorbarcode]

Fixes #17011

Motivation

1. In this test, make a batch of messages is acked, and make the remaining messages are redelivered, then try to receive the redelivered messages again. However, the sequence num is used for cmd-ack. But if the order of the messages changes, the acked messages will not be the expected messages, which makes the test unstable.

2. There is a bug that caused repeated consumption, PR [fix][broker]fix Repeated messages of shared dispatcher #18227 has fixed it.

Changes

Use the message content to determine whether the message should ack.

Documentation

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

Matching PR in forked repository

PR in forked repository:

• [ci][fix][flaky-test]DispatcherBlockConsumerTest.testBrokerSubscriptionRecover poorbarcode/pulsar#33

[codecov-commenter]

Codecov Report

Merging #18228 (7c325f6) into master (6c65ca0) will increase coverage by 3.62%.
The diff coverage is 34.49%.

@@             Coverage Diff              @@
##             master   #18228      +/-   ##
============================================
+ Coverage     34.91%   38.54%   +3.62%     
- Complexity     5707     8209    +2502     
============================================
  Files           607      683      +76     
  Lines         53396    67290   +13894     
  Branches       5712     7218    +1506     
============================================
+ Hits          18644    25934    +7290     
- Misses        32119    38396    +6277     
- Partials       2633     2960     +327     

Flag	Coverage Δ
unittests	38.54% <34.49%> (+3.62%)	⬆️

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

Impacted Files	Coverage Δ
...org/apache/bookkeeper/mledger/LedgerOffloader.java	0.00% <ø> (ø)
...che/bookkeeper/mledger/LedgerOffloaderFactory.java	0.00% <ø> (ø)
...pache/bookkeeper/mledger/LedgerOffloaderStats.java	0.00% <ø> (ø)
...ookkeeper/mledger/LedgerOffloaderStatsDisable.java	0.00% <ø> (ø)
...a/org/apache/bookkeeper/mledger/ManagedCursor.java	85.71% <ø> (ø)
...che/bookkeeper/mledger/ManagedLedgerException.java	41.17% <ø> (ø)
...bookkeeper/mledger/ManagedLedgerFactoryConfig.java	86.66% <ø> (ø)
...g/apache/bookkeeper/mledger/ManagedLedgerInfo.java	22.22% <ø> (ø)
...he/bookkeeper/mledger/OffloadedLedgerMetadata.java	0.00% <ø> (ø)
...ava/org/apache/bookkeeper/mledger/ScanOutcome.java	0.00% <ø> (ø)
... and 723 more