Currently, raft-based node operations with streaming use topology guards, but repair-based don't.
Topology guards ensure that if a respective session is closed (the operation has finished), each leftover operation being a part of this session fails. Thanks to that we won't incorrectly assume that e.g. the old rpc received late belongs to the newly started operation. This is especially important if the operation involves writes.
Pass a topology_guard down from raft_topology_cmd_handler to repair tasks. Repair tasks already support topology guards.
Fixes: https://github.com/scylladb/scylladb/issues/27759
No topology_guard in any version; needs backport to all versions
- (cherry picked from commit 3fe596d556)
- (cherry picked from commit 2be5ee9f9d)
Parent PR: #27839Closesscylladb/scylladb#28297
* github.com:scylladb/scylladb:
service: use session variable for streaming
service: pass topology guard to RBNO
09858b7e86