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More HA wording improvements.

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This commit is contained in:
Bruce Momjian 2006-11-22 18:15:34 +00:00
parent b035722f29
commit 2a55984162
1 changed files with 9 additions and 8 deletions
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17
doc/src/sgml/high-availability.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/high-availability.sgml,v 1.13 2006/11/22 18:14:26 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/high-availability.sgml,v 1.14 2006/11/22 18:15:34 momjian Exp $ -->
<chapter id="high-availability">
<title>High Availability and Load Balancing</title>
@ -226,7 +226,6 @@ protocol to make nodes agree on a serializable transactional order.
server works independently, and periodically communicates with
the other servers to identify conflicting transactions. The
conflicts can be resolved by users or conflict resolution rules.
rules.
</para>
</listitem>
</varlistentry>
@ -252,12 +251,14 @@ protocol to make nodes agree on a serializable transactional order.
<listitem>
<para>
Many of the above solutions allow multiple servers handle multiple sessions, but none allow a single query to use
multiple server to complete fas to This allows multiple servers to work concurrently on a single
query. One possible way this could work is for the data to be
split among servers and for each server to execute its part of
the query and results sent to a central server to be combined
and returned to the user. Pgpool-II has this capability.
Many of the above solutions allow multiple servers to handle
multiple queries, but none allow a single query to use multiple
servers to complete faster. This solution allows multiple
servers to work concurrently on a single query. This is usually
accomplished by splitting the data among servers and having
each server execute its part of the query and return results
to a central server where they are combined and returned to
the user. Pgpool-II has this capability.
</para>
</listitem>
</varlistentry>