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Improve description of read/write traffic scalability

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Greg Smith, after a suggestion of James Bruce
This commit is contained in:
Alvaro Herrera 2011-05-03 11:34:27 -03:00
parent 155743ad31
commit 5614857096
1 changed files with 4 additions and 3 deletions
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7
doc/src/sgml/high-availability.sgml
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@ -188,9 +188,10 @@ protocol to make nodes agree on a serializable transactional order.
<para> <para>
With statement-based replication middleware, a program intercepts With statement-based replication middleware, a program intercepts
every SQL query and sends it to one or all servers. Each server every SQL query and sends it to one or all servers. Each server
operates independently. Read-write queries are sent to all servers, operates independently. Read-write queries must be sent to all servers,
while read-only queries can be sent to just one server, allowing so that every server receives any changes. But read-only queries can be
the read workload to be distributed. sent to just one server, allowing the read workload to be distributed
among them.
</para> </para>
<para> <para>