Re: Cassandra data loss in come DC

2017-08-02 Thread Jeff Jirsa
Cassandra doesn't guarantee writes make it to all replicas unless you use a sufficiently high consistency level or run nodetool repair What consistency level did you use for writes? Have you run repair? -- Jeff Jirsa > On Aug 2, 2017, at 6:27 AM, Peng Xiao <2535...@qq.com> wrote: > > Hi

Cassandra data loss in come DC

2017-08-02 Thread Peng Xiao
Hi there, We have a three DCs Cluster (two DCs with RF=3,one remote DC with RF=1),we currently find that in DC1/DC2 select count(*) from t=1250,while in DC3 select count(*) from t=750. looks some data is missing in DC3(remote DC).there are no node down or anything exceptional. we only