shibd opened a new pull request, #22489:
URL: https://github.com/apache/pulsar/pull/22489

   ### Motivation
   #22351
   
   After #22034, the calculation formula for the ledger number should be: 
`totalEntries / entriesPerLedger + 1`, However, since the creation of the 
ledger is asynchronous, sometimes the last ledger is not created before the 
function returns.
   
   
https://github.com/apache/pulsar/blob/57a616eaa79096af5b49db89c99cd39ccc94ec00/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedLedgerImpl.java#L1775-L1778
   
   ### Modifications
   - Add `retryStrategically((test) -> ledger.getState() == 
ManagedLedgerImpl.State.LedgerOpened,10, 200)` to make sure later ledger 
creates success.
   - Modify the ledger quantity and assertions related to `makePosition`.
   
   ### Verifying this change
   - After running it 100 times locally, this test is stable.
   
   ### Documentation
   
   <!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
   
   - [ ] `doc` <!-- Your PR contains doc changes. -->
   - [ ] `doc-required` <!-- Your PR changes impact docs and you will update 
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   - [x] `doc-not-needed` <!-- Your PR changes do not impact docs -->
   - [ ] `doc-complete` <!-- Docs have been already added -->
   
   ### Matching PR in forked repository
   


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