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From "Fx_Bull"<jhaob...@gmail.com>
Subject why major_compaction does more performance consumption than minor_compaction ?
Date Fri, 20 Jun 2014 09:10:31 GMT
hello everyone!

Differenct between them:

1、minor_compact will select best storeFiles to compact。
2、major_compact will select all storeFiles to compact and do some clean work。

RegionServer holds only one compactSplitThread ,and only one compact task run !

3、The compaction task just scans all the storefiles and then merge one, so I hold the opinon
that major compact only cost more time than minor .

best regards!!
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