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eb7be9010d
We switched to the size-based load balancing, which now has more strict requirements for load stats. We no longer need only per-node stats, but also per-tablet stats. Bootstrapping a node triggers stats refresh, but allocating tablets on table creation didn't. So after creating a table, load balancer couldn't make progress for up to 60s (stats refresh period). This makes tests take longer, and can even cause failures if tests are using a low-enough timeout. Fixes https://github.com/scylladb/scylladb/issues/27921 No backport becuse only master is vulnerable (size-based load balancing). Closes scylladb/scylladb#27926 * https://github.com/scylladb/scylladb: test: cluster: Add reproducer for missed notification in topology coordinator topology_coordinator: Wake up the state machine after stats refresh topology_coordinator: Move tablet_load_stats_refresh_before_rebalancing injection earlier topology_coordinator: Fix potential missed notification topology_coordinator: Refresh load stats after table is created or altered tablets: Do a group0 read barrier on tablet load stats refresh topology_coordinator: Ensure stats are refreshed in the gossip scheduling group test: Use ManagerClient.{disable,enable}_tablet_balancing() test: Add missing calls to disable_tablet_balancing() in tests which use move_tablet() API test: pylib: Introduce ManagerClient.{disable,enable}_tablet_balancing()