ruby on rails - How does touch tmp/db_syn.txt work -


i have ruby on rails application runs on passenger. have following capistrano task:

run "touch #{current_release}/tmp/sync_db.txt"

i know how works. how passenger know source , destination databases needs synched? should configuration files?

passenger author here. passenger not sync databases, , not know sync_db.txt. whatever sync_db.txt, handled else in system.


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