io_flush: lock DB while flushing
io_flush: lock DB while flushing

It means that you can't create/remove table/column while flushing.

groonga/groonga,komainu8/groonga,naoa/groonga,naoa/groonga,kenhys/groonga,komainu8/groonga,groonga/groonga,groonga/groonga,naoa/groonga,groonga/groonga,komainu8/groonga,groonga/groonga,komainu8/groonga,groonga/groonga,kenhys/groonga,naoa/groonga,naoa/groonga,groonga/groonga,naoa/groonga,kenhys/groonga,komainu8/groonga,naoa/groonga,komainu8/groonga,kenhys/groonga,komainu8/groonga,naoa/groonga,groonga/groonga,kenhys/groonga,kenhys/groonga,kenhys/groonga,komainu8/groonga,kenhys/groonga