sijie commented on issue #570: Multiple active entrylogs
    The implementation would become simpler, because it is a complex logic to 
handle and maintain slotmap in configured number of Entrylogs per LedgerDir 
design/implementation and it needs to be thoroughly analyzed/tested from 
multi-thread perspective. But most importantly the garbagecollection component 
becomes much simpler because there is no need of compaction in entrylog per 
ledger approach. So there is huge gain in indirect performance because of 
absence of IO activity for compaction and huge improvement in space reclamation 
during compaction.
   This needs to be clarified. It would have the benefits if you have small 
number of ledgers, I don't think it is good for large number of ledgers. It is 
good if you think from Salesforce's use case; however it is not, if you think 
from other use cases. This is good to be called out before you are claiming all 
the benefits here.

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