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According to the Cassandra repair documentation, nodetool repair should be run in the following situations: As a best practice, you should schedule repairs weekly. Note: If deletions never occur, you should still schedule regular repairs. Be aware that setting a column to null is a delete. During node recovery. For example, when bringing a node back into ...


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cqlsh -k mykeyspace -e 'COPY fromTable(columnNames) TO STDOUT' | head -n -1 | cqlsh -k mykeyspace -e 'COPY toTable(columnNames) FROM STDIN'



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