Take the 2-minute tour ×
Server Fault is a question and answer site for professional system and network administrators. It's 100% free, no registration required.

I was reading an article about youtube in it's early years http://highscalability.com/youtube-architecture and came across the term Replica Lag. What exactly is that?

share|improve this question
add comment

1 Answer

up vote 2 down vote accepted

Replica lag is the delay between updating a database on the main server and having it replicated to all other servers.

In a heavily loaded database system it can take some time for updates to be processed by all the other servers.

share|improve this answer
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.