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体验新版 GitCode,发现更多精彩内容 >>
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23cf3986
编写于
4月 30, 2005
作者:
B
Bruce Momjian
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23cf3986
Frequently Asked Questions (FAQ) for PostgreSQL
Last updated: Fri Apr 29 23:5
1:45
EDT 2005
Last updated: Fri Apr 29 23:5
3:16
EDT 2005
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
...
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doc/src/FAQ/FAQ.html
浏览文件 @
23cf3986
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@@ -10,7 +10,7 @@
alink=
"#0000ff"
>
<H1>
Frequently Asked Questions (FAQ) for PostgreSQL
</H1>
<P>
Last updated: Fri Apr 29 23:5
1:45
EDT 2005
</P>
<P>
Last updated: Fri Apr 29 23:5
3:16
EDT 2005
</P>
<P>
Current maintainer: Bruce Momjian (
<A
href=
"mailto:pgman@candle.pha.pa.us"
>
pgman@candle.pha.pa.us
</A>
)
...
...
@@ -987,20 +987,22 @@ length</TD></TR>
<H3><A
name=
"4.21"
>
4.21
</A>
) What replication solutions are available?
</H3>
<P>
Though "replication" is a single term, there are several technologies
for doing replication, with advantages and disadvantages for each.
</P>
<P>
Master/slave replication allows a single master to receive read/write
queries, while slaves can only accept read/
<SMALL>
SELECT
</SMALL>
queries.
The most popular freely available master-slave PostgreSQL replication
solution is
<A
href=
"http://gborg.postgresql.org/project/slony1/projdisplay.php"
>
queries, while slaves can only accept read/
<SMALL>
SELECT
</SMALL>
queries. The most popular freely available master-slave PostgreSQL
replication solution is
<A
href=
"http://gborg.postgresql.org/project/slony1/projdisplay.php"
>
Slony-I
</A>
.
</P>
<P>
Multi-master replication allows read/write queries to be sent to
multiple replicated computers. This capability also has a severe
impact on performance due to the need to synchronize changes between
servers.
<A
href=
"http://pgfoundry.org/projects/pgcluster/"
>
Pgcluster
</a>
is the
most popular such solution freely available for PostgreSQL.
</P>
multiple replicated computers. This capability also has a severe
impact
on performance due to the need to synchronize changes between servers.
<A
href=
"http://pgfoundry.org/projects/pgcluster/"
>
Pgcluster
</a>
is the
most popular such solution freely available for PostgreSQL.
</P>
<P>
There are also commercial and hardware-based replication solutions
available supporting a variety of replication models.
</P>
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