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1284c18647
Currently, tablet allocation intentionally ignores current load ( introduced by the commit #1e407ab) which could cause identical shard selection when allocating a small number of tablets in the same topology. When a tablet allocator is asked to allocate N tablets (where N is smaller than the number of shards on a node), it selects the first N lowest shards. If multiple such tables are created, each allocator run picks the same shards, leading to tablet imbalance across shards. This change initializes the load sketch with the current shard load, scaled into the [0,1] range, ensuring allocation still remains even while starting from globally least-loaded shards. Fixes https://github.com/scylladb/scylladb/issues/27620 Closes https://github.com/scylladb/scylladb/pull/27802 Closes scylladb/scylladb#28106