Kefu Chai c628fa4e9e tools: enhance scylla sstable shard-of to support tablets ...

before this change, `scylla sstable shard-of` didn't support tablets,
because:

- with tablets enabled, data distribution uses the scheduler
- this replaces the previous method of mapping based on vnodes and shard numbers
- as a result, we can no longer deduce sstable mapping from token ranges

in this change, we:
- read `system.tablets` table to retrieve tablet information
- print the tablet's replica set (list of <host, shard> pairs)
- this helps users determine where a given sstable is hosted

This approach provides the closest equivalent functionality of
`shard-of` in the tablet era.

Fixes scylladb/scylladb#16488
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>

2024-08-15 15:49:55 +08:00

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