how to create a snapshot of entire Node and copy all snapshot to one directory
You can backup a Cassandra node by running the snapshot command:
$ nodetool snapshot
When you take a snapshot of a table, the backup is created in the snapshots subdirectory of the table. For example:
/path/ to/ data/ keyspace_name/ table_name-UUID/ snapshots/ snapshot_name/
Note that in Cassandra a snapshot is equivalent to a cold backup since SSTables are immutable (they don't change once written to disk).
For more information, see Backing up and restoring data in Apache Cassandra. Cheers!
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