[GitHub] [pulsar] laxpio commented on issue #5669: Pulsar Broker restart fail owing to create functions/assignments topic fail

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laxpio commented on issue #5669: Pulsar Broker restart fail owing to create functions/assignments topic fail
URL: https://github.com/apache/pulsar/issues/5669#issuecomment-561978582
 
 
    i modify the code，deal NUll return，and now can not reproduce it.
   original code：
   org/apache/bookkeeper/mledger/impl/ManagedLedgerImpl.java
   ```
   PositionImpl startReadOperationOnLedger(PositionImpl position) {
           long ledgerId = ledgers.ceilingKey(position.getLedgerId()); // ceilingKey return will null
           if (ledgerId != position.getLedgerId()) {
               // The ledger pointed by this position does not exist anymore. It was deleted because it was empty. We need
               // to skip on the next available ledger
               position = new PositionImpl(ledgerId, 0);
           }
   
           return position;
       }
   ```

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