Pavel Emelyanov f240d5760c migration_manager: Split notifier from main class ...

The _listeners list on migration_manager class and the corresponding
notify_xxx helpers have nothing to do with the its instances, they
are just transport for notification delivery.

At the same time some services need the migration manager to be alive
at their stop time to unregister from it, while the manager itself
may need them for its needs.

The proposal is to move the migration notifier into a complete separate
sharded "service". This service doesn't need anything, so it's started
first and stopped last.

While it's not effectively a "migration" notifier, we inherited the name
from Cassandra and renaming it will "scramble neurons in the old-timers'
brains but will make it easier for newcomers" as Avi says.

Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>

2020-01-15 14:28:19 +03:00

..

boost

cdc: Listen for migration callbacks on all shards

2020-01-14 16:35:41 +01:00

lib

migration_manager: Split notifier from main class

2020-01-15 14:28:19 +03:00

manual

tests: move all test source files to their new locations

2019-12-16 17:47:42 +03:00

perf

everywhere: Use serialized(foo) instead of data_value(foo).serialize()

2020-01-14 12:17:12 +02:00

resource

cdc: add schema_change test for cdc_options

2020-01-05 14:39:23 +02:00

unit

tests: move all test source files to their new locations

2019-12-16 17:47:42 +03:00