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  1. Cassandra
  2. CASSANDRA-12816

Rebuild failing while adding new datacenter

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    • Severity:
      Critical
    • Since Version:

      Description

      Hello All,

      I have single datacenter with 3 C* nodes and we are trying to expand the cluster to another region/DC. I am seeing the below error while doing a "nodetool rebuild – name_of_existing_data_center" .

      [user@machine ~]$ nodetool rebuild DC1
      nodetool: Unable to find sufficient sources for streaming range (-402178150752044282,-396707578307430827] in keyspace system_distributed
      See 'nodetool help' or 'nodetool help <command>'.
      [user@machine ~]$
      
      user@cqlsh> SELECT * from system_schema.keyspaces where keyspace_name='system_distributed';
      
       keyspace_name | durable_writes | replication
      ---------------+----------------+-------------------------------------------------------------------------------------
       system_distributed |           True | {'class': 'org.apache.cassandra.locator.SimpleStrategy', 'replication_factor': '3'}
      
      (1 rows)
      

      To overcome this I have updated system_distributed keyspace to DC1:3 and DC2:3 with NetworkTopologyStrategy

      C* Version - 3.0.8

      Is this a bug that is introduced in 3.0.8 version of cassandra? as I haven't seen this issue with the older versions?

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            • Assignee:
              Unassigned
              Reporter:
              jaid Jai Bheemsen Rao Dhanwada
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              • Created:
                Updated: