Benny Halevy baf5d05631 storage_service: use atomic_vector for lifecycle_subscribers ...

So it can be modified while walked to dispatch
subscribed event notifications.

In #8143, there is a race between scylla shutdown and
notify_down(), causing use-after-free of cql_server.

Using an atomic vector itstead and futurizing
unregister_subscriber allows deleting from _lifecycle_subscribers
while walked using atomic_vector::for_each.

Fixes #8143

Test: unit(release)
DTest:
  update_cluster_layout_tests:TestUpdateClusterLayout.add_node_with_large_partition4_test(release)
  materialized_views_test.py:TestMaterializedViews.double_node_failure_during_mv_insert_4_nodes_test(release)
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
Message-Id: <20210224164647.561493-2-bhalevy@scylladb.com>

2021-03-01 20:34:42 +02:00

..

host_filter.cc

config: plug in hints::host_filter object into configuration

2020-11-17 10:24:42 +01:00

host_filter.hh

db/hints: introduce host_filter

2020-11-17 10:15:47 +01:00

manager.cc

storage_service: use atomic_vector for lifecycle_subscribers

2021-03-01 20:34:42 +02:00

manager.hh

api: allow changing hinted handoff configuration

2020-11-17 10:24:43 +01:00

resource_manager.cc

hints/resource_manager: add comments to register_manager

2020-11-19 16:34:37 +01:00

resource_manager.hh

imr: switch back to open-coded description of structures

2021-02-16 23:43:07 +01:00