Botond Dénes

I now remember why `_ready_list` had a hardcoded size of 1. This is not because CPU concurrency is 1, but because otherwise the CPU concurrency can be completely bypassed. This...

> * [test_mv_topology_change.dev.1](https://jenkins.scylladb.com//job/scylla-master/job/scylla-ci/13963/testReport/junit/topology_custom/test_mv_topology_change/Tests___Unit_Tests___test_mv_topology_change_dev_1) [🔍](https://github.com/scylladb/scylladb/issues?q=is:issue+is:open+test_mv_topology_change.dev.1) > > * [test_mv_topology_change.dev.2](https://jenkins.scylladb.com//job/scylla-master/job/scylla-ci/13963/testReport/junit/topology_custom/test_mv_topology_change/Tests___Unit_Tests___test_mv_topology_change_dev_2) [🔍](https://github.com/scylladb/scylladb/issues?q=is:issue+is:open+test_mv_topology_change.dev.2) > > * [test_mv_topology_change.dev.3](https://jenkins.scylladb.com//job/scylla-master/job/scylla-ci/13963/testReport/junit/topology_custom/test_mv_topology_change/Tests___Unit_Tests___test_mv_topology_change_dev_3) [🔍](https://github.com/scylladb/scylladb/issues?q=is:issue+is:open+test_mv_topology_change.dev.3) https://github.com/scylladb/scylladb/issues/21912

@scylladb/scylla-maint ping for merge.

TODO: test with transitions

New in v2: * Register the `scylla table` command, solving the ambiguous `scylla table` in the test.

> [Exception] - raft::request_aborted: Abort requested while waiting for entry with idx: 272, term: 1 @kbr-scylla what is this and why is it happening in a cql_test_env test?

> > @kbr-scylla what is this > > It's an error that happens if you interrupt Raft (e.g. by shutdown) while it's in the middle of applying a command >...

> * [test_mv_topology_change.dev.2](https://jenkins.scylladb.com//job/scylla-master/job/scylla-ci/13778/testReport/junit/topology_custom/test_mv_topology_change/Tests___Unit_Tests___test_mv_topology_change_dev_2) [🔍](https://github.com/scylladb/scylladb/issues?q=is:issue+is:open+test_mv_topology_change.dev.2) > > * [test_mv_topology_change.dev.3](https://jenkins.scylladb.com//job/scylla-master/job/scylla-ci/13778/testReport/junit/topology_custom/test_mv_topology_change/Tests___Unit_Tests___test_mv_topology_change_dev_3) [🔍](https://github.com/scylladb/scylladb/issues?q=is:issue+is:open+test_mv_topology_change.dev.3) https://github.com/scylladb/scylladb/issues/21912

> [test_random_failures[stop_before_streaming-restart_coordinator_node].debug.3](https://jenkins.scylladb.com//job/scylla-master/job/scylla-ci/13778/testReport/junit/topology_random_failures/test_random_failures/Tests___Unit_Tests___test_random_failures_stop_before_streaming_restart_coordinator_node__debug_3) [🔍](https://github.com/scylladb/scylladb/issues?q=is:issue+is:open+test_random_failures%5Bstop_before_streaming-restart_coordinator_node%5D.debug.3) https://github.com/scylladb/scylladb/issues/21872

> [test_database_with_data_in_sstables_is_a_mutation_source_reverse_reader_conversion_cg0](https://jenkins.scylladb.com//job/scylla-master/job/scylla-ci/13902/testReport/junit/boost/database_test/test_database_with_data_in_sstables_is_a_mutation_source_reverse_reader_conversion_cg0) [🔍](https://github.com/scylladb/scylladb/issues?q=is:issue+is:open+test_database_with_data_in_sstables_is_a_mutation_source_reverse_reader_conversion_cg0) https://github.com/scylladb/scylladb/issues/21983