Hi Rahul, how did you add that dc3 to cluster? The rule of thumb here is to do rebuild from each node, for example like here https://docs.datastax.com/en/archived/cassandra/3.0/cassandra/operations/opsAddDCToCluster.html
On Wed, 21 Aug 2019 at 12:57, Rahul Reddy <rahulreddy1...@gmail.com> wrote: > > Hi sefan, > > I'm adding new DC3 to exiting cluster and see discripencies couple of > millions in Nodetool cfstats in new DC. > > My table size is 50gb > I'm trying to run copy entire table. > > Copy table to 'full_tablr.csv' with delimiter ','; > > If I run above command from dc3. Does it get the data only from dc3? > > > > On Wed, Aug 21, 2019, 6:46 AM Stefan Miklosovic > <stefan.mikloso...@instaclustr.com> wrote: >> >> Hi Rahul, >> >> what is your motivation behind this? Why do you want to make sure the >> count is same? What is the purpose of that? All you should care about >> is that Cassandra will return you right results. It was designed from >> the very bottom to do that for you, you should not be bothered too >> much about such discrepancies, they will be always there in general. >> But the important fact is that once queried, you can rest assured it >> is returned (and consequentially repaired if data not match) as they >> should. >> >> What copy command you are talking about precisely, why you cant use just >> repair? >> >> On Wed, 21 Aug 2019 at 12:14, Rahul Reddy <rahulreddy1...@gmail.com> wrote: >> > >> > Hello, >> > >> > I have 3 datacenters . Want to make sure record count is same in all dc's >> > . If I run copy command node1 in dc1 does it get the data from only dc1? >> > Nodetool cfstats I'm seeing discrepancies in partitions count is it >> > because we didn't run cleanup after adding few nodes and remove them?. To >> > rule out any discripencies I want to run copy command from 3 DC's and >> > compare. Please let me know if copy command extracts data from the DC only >> > I ran it from? >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >> For additional commands, e-mail: user-h...@cassandra.apache.org >> --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
