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<chapter id="failover">

<title>Failover, Replication, Load Balancing, and Clustering Options</title>

<para>

Slony is an example of this type of replication, with per-table

granularity. It updates the backup server in batches, so therepliation

granularity. It updates the backup server in batches, so thereplication

is asynchronous and might lose data during a fail over.

</para>

</sect1>