box.ctl.wait_ro()

box.ctl.wait_ro([timeout])¶

Wait until box.info.ro is true.

Parameters:	timeout (number) – maximum number of seconds to wait
Return:	nil, or error may be thrown due to timeout or fiber cancellation

Example:

tarantool> box.info().ro
---
- false
...

tarantool> n = box.ctl.wait_ro(0.1)
---
- error: timed out
...