Check this article: http://www.ngdata.com/visualizing-hbase-flushes-and-compactions/
Regards KASHIF *************************************************************************************** This e-mail and attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient's) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -----Original Message----- From: Fx_Bull [mailto:[email protected]] Sent: 20 June 2014 14:41 To: user Subject: why major_compaction does more performance consumption than minor_compaction ? 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!!
