Yes, I take all steps. While I am inserting new data is replicating on both DC. 
But only old data is not replication in new cluster.

Thanks & Regards,
Abhishek Kumar Maheshwari
+91- 9999805591 (Mobile)
Times Internet Ltd. | A Times of India Group Company
FC - 6, Sector 16A, Film City,  Noida,  U.P. 201301 | INDIA
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From: Benjamin Roth [mailto:benjamin.r...@jaumo.com]
Sent: Tuesday, January 24, 2017 8:55 PM
To: user@cassandra.apache.org
Subject: Re: [Multi DC] Old Data Not syncing from Existing cluster to new 
Cluster

There is much more to it than just changing the RF in the keyspace!

See here: 
https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsAddDCToCluster.html

2017-01-24 16:18 GMT+01:00 Abhishek Kumar Maheshwari 
<abhishek.maheshw...@timesinternet.in<mailto:abhishek.maheshw...@timesinternet.in>>:
Hi All,

I have Cassandra stack with 2 Dc

Datacenter: DRPOCcluster
========================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address        Load       Tokens       Owns    Host ID                      
         Rack
UN  172.29.xx.xxx  256  MB   256          ?       
b6b8cbb9-1fed-471f-aea9-6a657e7ac80a  01
UN  172.29.xx.xxx  240 MB   256          ?       
604abbf5-8639-4104-8f60-fd6573fb2e17  03
UN  172.29. xx.xxx  240 MB   256          ?       
32fa79ee-93c6-4e5b-a910-f27a1e9d66c1  02
Datacenter: dc_india
====================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address        Load       Tokens       Owns    Host ID                      
         Rack
DN  172.26. .xx.xxx  78.97 GB   256          ?       
3e8133ed-98b5-418d-96b5-690a1450cd30  RACK1
DN  172.26. .xx.xxx  79.18 GB   256          ?       
7d3f5b25-88f9-4be7-b0f5-746619153543  RACK2

dc_india is old Dc which contains all data.
I update keyspace as per below:

alter KEYSPACE wls WITH replication = {'class': 'NetworkTopologyStrategy', 
'DRPOCcluster': '2','dc_india':'2'}  AND durable_writes = true;

but old data is not updating in DRPOCcluster(which is new). Also, while running 
nodetool rebuild getting below exception:
Cammand: ./nodetool rebuild -dc dc_india

Exception : nodetool: Unable to find sufficient sources for streaming range 
(-8756974555527424852,-8755484427030035332] in keyspace system_distributed

Cassandra version : 3.0.9


Thanks & Regards,
Abhishek Kumar Maheshwari
+91- 9999805591<tel:+91%2099998%2005591> (Mobile)
Times Internet Ltd. | A Times of India Group Company
FC - 6, Sector 16A, Film City,  Noida,  U.P. 201301 | INDIA
P Please do not print this email unless it is absolutely necessary. Spread 
environmental awareness.




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Benjamin Roth
Prokurist

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