as rcoli just reminded me, i should be more clear that it is 1 _active_ memtable per CF, but there may be several pending flush.
space from deletions is only reclaimed after GCGraceSeconds has elapsed AND a major compaction is run. default for the former is 10 days. the latter is not automatic. On Thu, Jul 8, 2010 at 11:32 AM, Dwight Smith <dwight.sm...@alcatel-lucent.com> wrote: > Thanks - I found on Wiki that the memtables and sstables are on a per CF > basis. > > Sorry about the mail client formatting - I have no choice - corporate > controlled:) > > Now I am concerned about the deletions - what areas should I investigate > to understand the concerns you raise? > > Thanks again > > -----Original Message----- > From: Benjamin Black [mailto:b...@b3k.us] > Sent: Thursday, July 08, 2010 11:28 AM > To: user@cassandra.apache.org > Subject: Re: Use of multiple Keyspaces > > (and I'm sure someone will correct me if I am wrong on that) > > On Thu, Jul 8, 2010 at 11:24 AM, Benjamin Black <b...@b3k.us> wrote: >> There is a memtable per CF, regardless of how many keyspaces you have. > > > ------------------------------------------------------------------------------------------------------------------- > CONFIDENTIALITY NOTICE: This e-mail and any files attached may contain > confidential and proprietary information of Alcatel-Lucent and/or its > affiliated entities. Access by the intended recipient only is authorized. Any > liability arising from any party acting, or refraining from acting, on any > information contained in this e-mail is hereby excluded. If you are not the > intended recipient, please notify the sender immediately, destroy the > original transmission and its attachments and do not disclose the contents to > any other person, use it for any purpose, or store or copy the information in > any medium. Copyright in this e-mail and any attachments belongs to > Alcatel-Lucent and/or its affiliated entities. > >
