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1b233a25fd
The gossiper can call `storage_service::on_change` frequently (see scylladb/scylla-enterprise#5613), which may cause high CPU load and even trigger OOMs or related issues. This PR adds a temporary cache for `system.peers` to resolve host_id -> ip without hitting storage on every call. The cache is short-lived to handle the unlikely case where `system.peers` is updated directly via CQL. This is a temporary fix; a more thorough solution is tracked in https://github.com/scylladb/scylladb/issues/25620. Fixes scylladb/scylladb#25660 backport: this patch needs to be backported to all supported versions (2025.1/2/3). - (cherry picked from commit91c633371e) - (cherry picked from commitde5dc4c362) - (cherry picked from commit4b907c7711) Parent PR: #25658 Closes scylladb/scylladb#25762 * github.com:scylladb/scylladb: storage_service: move get_host_id_to_ip_map to system_keyspace system_keyspace: use peers cache in get_ip_from_peers_table storage_service: move get_ip_from_peers_table to system_keyspace