On Tue, Aug 31, 2010 at 4:06 PM, Jonathan Ellis <jbel...@gmail.com> wrote: > does http://wiki.apache.org/cassandra/DistributedDeletes and > http://wiki.apache.org/cassandra/MemtableSSTable help? > > On Tue, Aug 31, 2010 at 3:04 PM, Dwight Smith > <dwight.sm...@alcatel-lucent.com> wrote: >> Hi >> >> >> >> I am running a three node cluster, everything works as expected. After >> running my application for ~60K iterations, I stopped the application, then >> performed >> >> Nodetool flush on my Keyspace, the a nodetool compact, repeating this for >> each node in the cluster. >> >> >> >> Then I exported with sstabletojson on one of my CFs and upon examining the >> json – all the entries had the tombstone flag true. >> >> >> >> This is correct, since all the application processes completed correctly, >> and the entries should be removed. >> >> >> >> Now for the question: I understood that a nodetool compact would cause the >> tombstone entries to be removed, is this true? >> >> >> >> Thanks >> >> >> >> 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. > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of Riptano, the source for professional Cassandra support > http://riptano.com >
The tombstones have to be older then GCGracePeriod before major compact will remove them.
