Nikolay Izhikov created IGNITE-18999:
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             Summary: Snapshot only primary copies of partitions
                 Key: IGNITE-18999
                 URL: https://issues.apache.org/jira/browse/IGNITE-18999
             Project: Ignite
          Issue Type: Improvement
            Reporter: Nikolay Izhikov


Ignite must provide an option to snapshot only primary copies of partitions.
This will improve:
  * snapshot creation time.
  * disk usage during snapshot creation.
  * space amount to store snapshot.
This will lead to the following disadvantages during restore process:
  * rebalance (can be omitted with custom file copy script and cellular 
affinity)
  * index.bin rebuild - performance improved in IGNITE-18271




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