Thanks All
------------------ ???????? ------------------ ??????: "Jeff Jirsa";<jji...@gmail.com>; ????????: 2017??9??28??(??????) ????9:16 ??????: "user"<user@cassandra.apache.org>; ????: Re: data loss in different DC Your quorum writers are only guaranteed to be on half+1 nodes - there??s no guarantee which nodes those will be. For strong consistency with multiple DCs, You can either: - write at quorum and read at quorum from any dc, or - write each_quorum and read local_quorum from any dc, or - write at local_quorum and read local_quorum from the same DC only -- Jeff Jirsa > On Sep 28, 2017, at 2:41 AM, Peng Xiao <2535...@qq.com> wrote: > > Dear All, > > We have a cluster with one DC1:RF=3,another DC DC2:RF=1 only for ETL,but we > found that sometimes we can query records in DC1,while not able not find the > same record in DC2 with local_quorum.How it happens? > Could anyone please advise? > looks we can only run repair to fix it. > > Thanks, > Peng Xiao --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
