Improved monitoring of replica state during large binlog load #670

Job	Run time
Build images	2m 8s
test (GODOG_FEATURE=active_nodes.feature make test)	6m 59s
test (GODOG_FEATURE=async.feature make test)	3m 47s
test (GODOG_FEATURE=cascade_replicas.feature make test)	6m 54s
test (GODOG_FEATURE=CLI.feature make test)	4m 1s
test (GODOG_FEATURE=crash_recovery.feature make test)	4m 19s
test (GODOG_FEATURE=events_reenable.feature make test)	1m 59s
test (GODOG_FEATURE=failover.feature make test)	12m 25s
test (GODOG_FEATURE=free_space.feature make test)	6m 3s
test (GODOG_FEATURE=host_discovery.feature make test)	3m 29s
test (GODOG_FEATURE=host_management.feature make test)	3m 3s
test (GODOG_FEATURE=maintenance.feature make test)	4m 23s
test (GODOG_FEATURE=offline_mode.feature make test)	2m 11s
test (GODOG_FEATURE=priority.feature make test)	5m 45s
test (GODOG_FEATURE=readonly_filesystem.feature make test)	2m 4s
test (GODOG_FEATURE=recovery.feature make test)	3m 6s
test (GODOG_FEATURE=repair.feature make test)	9m 41s
test (GODOG_FEATURE=repl_mon.feature make test)	3m 28s
test (GODOG_FEATURE=statefile.feature make test)	4m 8s
test (GODOG_FEATURE=switchover_from.feature make test)	11m 35s
test (GODOG_FEATURE=switchover_to.feature make test)	12m 36s
test (GODOG_FEATURE=zk_failure.feature make test)	7m 22s
test (GODOG_FEATURE=zk_maintenance.feature make test)	4m 8s
	2h 5m 34s

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