[GitHub] jai1 edited a comment on issue #3118: UnAcked message tracker based on HashedWheelTimer and TimePartitioned

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jai1 edited a comment on issue #3118: UnAcked message tracker based on HashedWheelTimer and TimePartitioned
URL: https://github.com/apache/pulsar/pull/3118#issuecomment-444284382
 
 
   I would suggest to modify UnAckedMessageTracker instead of creating a new class.
   
   - Change ConsumerConfig => `setAckTimeout(time, timeunit, numOfSlots); // assert (numOfSlots >= 2);`
   - In UnAckedMessageTracker 
   1.  Currently there are only two slots instead use List<HashSet<MessageId>> of size  numOfSlots. 
   2. Divide newAckTimeout = ackTimeout/(numOfSlots - 1); 
   3. add new messages to `list.get(0)`
   4. On acktimeout redeliver `list.get(list.size() - 1)`;

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