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59fdf4b5f0
In several exception handlers, only `raft::request_aborted` was being caught and rethrown, while `seastar::abort_requested_exception` was falling through to the generic catch(...) block. This caused the exception to be incorrectly treated as a failure that triggers rollback, instead of being recognized as an abort signal.
For example, during tablet draining, the error log showed: "tablets draining failed with seastar::abort_requested_exception (abort requested). Aborting the topology operation"
This change adds `seastar::abort_requested_exception` handling alongside `raft::request_aborted` in all places where it was missing. When rethrown, these exceptions propagate up to the main `run()` loop where `handle_topology_coordinator_error()` recognizes them as normal abort signals and allows the coordinator to exit gracefully without triggering unnecessary rollback operations.
Fixes: scylladb/scylladb#27255
No backport: The problem was only seen in tests and not reported in customer tickets, so it's enough to fix it in the main branch.
- (cherry picked from commit 37e3dacf33)
Parent PR: #27314
Closes scylladb/scylladb#27662
* https://github.com/scylladb/scylladb:
topology_coordinator: handle seastar::abort_requested_exception alongside raft::request_aborted
topology_coordinator: consistently rethrow `raft::request_aborted` for direct/global commands