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https://issues.apache.org/jira/browse/BOOKKEEPER-827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhaijia updated BOOKKEEPER-827:
-------------------------------
    Description: 
Current bookie compaction in GarbageCollector has two settings: 
'compactionMaxOutstandingRequests' and 'compactionRate'. They are throttling 
and limiting the compaction by entries. 
But from a bandwidth perspective, it would be good that we could throttle and 
limit compaction by bytes, which would really reflect the bandwidth of disk. 

So in this enhancement, we added another "by bytes" option when doing 
compaction in GarbageCollector:
"boolean isThrottleByBytes": true when use by bytes, false when use by entries;
"int maxOutstandingRequests": by entries, number of entries before flush;
"int compactionRateByEntries": by entries, number of concurrent entries;
"int maxOutstandingRequestsBytes: by bytes, number of bytes that entries have 
occupied before flush. 
"int compactionRateByBytes": by bytes, number of bytes of entries before flush.

  was:
Current bookie compaction in GarbageCollector has two settings: 
'compactionMaxOutstandingRequests' and 'compactionRate'. They are throttling 
and limiting the compaction by entries. 
But from a bandwidth perspective, it would be good that we could throttle and 
limit compaction by bytes, which would really reflect the bandwidth of disk. 
So in this enhancement, we added another "by bytes" option when doing 
compaction in GarbageCollector:
"boolean isThrottleByBytes": true when use by bytes, false when use by entries;
"int maxOutstandingRequests": by entries, number of entries before flush.
"int compactionRate": by entries, number of entries ;
+    final int maxOutstandingRequestsBytes;
+    final int compactionRateByEntries;
+    final int compactionRateByBytes;


> change throttle in GarbageCollector to use either "by entry" or "by byte"
> -------------------------------------------------------------------------
>
>                 Key: BOOKKEEPER-827
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-827
>             Project: Bookkeeper
>          Issue Type: Improvement
>          Components: bookkeeper-server
>    Affects Versions: 4.3.0
>            Reporter: zhaijia
>            Assignee: zhaijia
>             Fix For: 4.4.0, 4.3.1
>
>
> Current bookie compaction in GarbageCollector has two settings: 
> 'compactionMaxOutstandingRequests' and 'compactionRate'. They are throttling 
> and limiting the compaction by entries. 
> But from a bandwidth perspective, it would be good that we could throttle and 
> limit compaction by bytes, which would really reflect the bandwidth of disk. 
> So in this enhancement, we added another "by bytes" option when doing 
> compaction in GarbageCollector:
> "boolean isThrottleByBytes": true when use by bytes, false when use by 
> entries;
> "int maxOutstandingRequests": by entries, number of entries before flush;
> "int compactionRateByEntries": by entries, number of concurrent entries;
> "int maxOutstandingRequestsBytes: by bytes, number of bytes that entries have 
> occupied before flush. 
> "int compactionRateByBytes": by bytes, number of bytes of entries before 
> flush.



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