add logs for starting rebalance thread #3213

Job	Run time
build-arm64	1h 0m 56s
build	10m 43s
build-ceph	1m 47s
demo (unsecured)	4m 32s
ha (sanity)	3m 46s
demo (psk)	5m 20s
atom	30m 56s
ha (no_huge)	3m 50s
demo (dhchap)	5m 51s
discovery (container)	4m 6s
ha (ns_lb_change)	4m 7s
ha (no_subsystems)	2m 43s
discovery (embedded)	3m 47s
ha (auto_load_balance)	20m 4s
pytest (cli)	2m 49s
ha (state_transitions)	4m 54s
pytest (cli_change_lb)	8m 8s
ha (state_transitions_both_gws)	6m 21s
pytest (cli_change_keys)	3m 1s
ha (state_transitions_loop)	20m 29s
pytest (cli_change_ns_visibility)	3m 1s
ha (state_transitions_rand_loop)	25m 39s
pytest (state)	2m 58s
ha (late_registration)	4m 1s
pytest (multi_gateway)	2m 52s
ha (late_registration_loop)	9m 36s
pytest (server)	3m 13s
ha (4gws)	8m 58s
pytest (grpc)	2m 59s
ha (4gws_loop)	11m 19s
pytest (omap_lock)	3m 48s
ha (4gws_create_delete)	8m 56s
pytest (log_files)	3m 15s
ha (4gws_create_delete_loop)	15m 8s
pytest (nsid)	3m 23s
ha (namespaces)	11m 57s
pytest (psk)	2m 47s
ha (namespaces_loop)	21m 30s
pytest (dhchap)	2m 47s
ha (mtls)	3m 37s
ha (notify)	2m 18s
ha (ceph_status)	2m 18s
ha (blocklist)	2m 30s
ha (main_exit)	1m 39s
push-devel-image-to-ceph-registry	0s
push-images-to-ceph-registry	0s
	6h 8m 39s

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