Will rabbitmq-diagnostics is_booting return True when indices are being rebuilt?

[jpoehls]

Sometimes during startup, RabbitMQ will need to rebuild indices. This can take quite a while. I'm looking for a way to easily check whether RabbitMQ is starting up. rabbitmqctl status returns an error during this entire "rebuilding indices" period. Would rabbitmq-diagnostics is_booting be a solution here?

[johanrhodin]

Yes, this is what it will return if rebuilding indices:

$ rabbitmq-diagnostics is_booting
Asking node rabbit@test-peppy-cobalt-zebra-01 for its boot status ...
RabbitMQ on node rabbit@test-peppy-cobalt-zebra-01 is booting

At the same time this could be seen in the logs:

2021-10-13 21:24:00.403518+00:00 [info] <0.32420.27> Making sure data directory '/var/lib/rabbitmq/mnesia/rabbit@test-peppy-cobalt-zebra-01/msg_stores/vhosts/1W2FO8RHS92ZAZ51D5IB2IXY3' for vhost 'vhost9'
exists
2021-10-13 21:24:00.406999+00:00 [info] <0.32420.27> Starting message stores for vhost 'vhost9'
2021-10-13 21:24:00.407200+00:00 [info] <0.32424.27> Message store "1W2FO8RHS92ZAZ51D5IB2IXY3/msg_store_transient": using rabbit_msg_store_ets_index to provide index
2021-10-13 21:24:00.409024+00:00 [info] <0.32420.27> Started message store of type transient for vhost 'vhost9'
2021-10-13 21:24:00.409236+00:00 [info] <0.32428.27> Message store "1W2FO8RHS92ZAZ51D5IB2IXY3/msg_store_persistent": using rabbit_msg_store_ets_index to provide index
2021-10-13 21:24:00.411337+00:00 [info] <0.32420.27> Started message store of type persistent for vhost 'vhost9'
2021-10-13 21:24:00.659100+00:00 [info] <0.2492.28> Making sure data directory '/var/lib/rabbitmq/mnesia/rabbit@test-peppy-cobalt-zebra-01/msg_stores/vhosts/2MB3HZTJJCNTC3EHN00A6UOAW' for vhost 'vhost93'
exists