What's meant by active replication & passive replication?
madhav kamal
Greenhorn
Joined: Oct 16, 2005
Posts: 18
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Originally posted by Laxmi: What's meant by active replication & passive replication?
Active Replication : each replica is identical to the main service and attempts to service each request. An interceptor is used to block extra responses. [ Hot Backups]
Passive Replication : the primary service handles all requests. The state of the replicas is periodically synchronized. In the event that the primary service fails, one of the replicas takes over after its state is synchronized [Warm Backups].
Regards<br /> <br /><br />##################################<br />When making a decision of minor importance I have always found it advantageous to consider all the pros and cons. In vital matters, however, such as the choice of a mate or profession, the decisions should come from the unconscious, from somewhere within ourselves<br />Sigmund Freud
amol deshpande
Ranch Hand
Joined: Sep 05, 2003
Posts: 162
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In addition to madhav's response, Both are fault tolerance techniques.
I agree. Here's the link: http://ej-technologies/jprofiler - if it wasn't for jprofiler, we would need to
run our stuff on 16 servers instead of 3.
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