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Session replication

  • US 7,668,904 B2
  • Filed: 07/28/2005
  • Issued: 02/23/2010
  • Est. Priority Date: 07/28/2005
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method for session replication,the method implemented within a multi-tiered data processing system comprising a client tier, a server tier, and a database tier;

  • each tier comprising computing devices coupled for data communications among the tiers and coupled for data communications among the devices within the server tier;

    the server tier and the database tier having disposed within them two or more replication peers;

    each replication peer comprising a module of automated computing machinery that has a same capability of storing on a replication medium sessions flushed from a replication queue as other modules similarly situated in the multi-tiered data processing system;

    the method comprising;

    enqueueing by a server in the server tier sessions on a replication queue, each session comprising information describing a group of two or more requests from a computing device in the client tier for computer resources or services; and

    flushing by the server enqueued sessions, from the replication queue to a replication peer, in dependence upon flushing criteria, for storage on a replication medium, including aggregating sessions from the replication queue for transmission to the replication peer;

    wherein flushing in dependence upon flushing criteria further comprises flushing in dependence upon queue depth.

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