From 7a35c637bc8b8aedd679cd8b5ea6ea588bccdb71 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Sun, 24 Apr 2005 11:48:52 +0000
Subject: [PATCH] Add replication FAQ item.
---
doc/FAQ | 15 ++++++++++++++-
doc/src/FAQ/FAQ.html | 16 +++++++++++++++-
2 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/doc/FAQ b/doc/FAQ
index f1bb92b1892..5aa0135972e 100644
--- a/doc/FAQ
+++ b/doc/FAQ
@@ -1,7 +1,7 @@
Frequently Asked Questions (FAQ) for PostgreSQL
- Last updated: Sun Apr 24 07:27:43 EDT 2005
+ Last updated: Sun Apr 24 07:48:48 EDT 2005
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@@ -78,6 +78,7 @@
4.19) Why do I get "relation with OID ##### does not exist" errors
when accessing temporary tables in PL/PgSQL functions?
4.20) What encryption options are available?
+ 4.21) What replication solutions are available?
_________________________________________________________________
General Questions
@@ -755,3 +756,15 @@
* Database user passwords are automatically encrypted when stored in
the system tables.
* The server can also run using an encrypted file system.
+
+ 4.21) What replication solutions are available?
+
+ Though "replication" is a single term, there are two major replication
+ technologies. Multi-master replication allows read/write queries to be
+ sent to multiple replicated computers. This capability has a serious
+ performance impact. Pgcluster is the most popular such solution
+ available for PostgreSQL. Master-slave replication allows a single
+ master to receive read/write queries, with slaves able to accept only
+ read/SELECT queries. The most popular master-slave PostgreSQL
+ replication solution is Slony. There are also commercial and
+ hardware-based replication solutions available.
diff --git a/doc/src/FAQ/FAQ.html b/doc/src/FAQ/FAQ.html
index d20eca6e901..28f08b5138c 100644
--- a/doc/src/FAQ/FAQ.html
+++ b/doc/src/FAQ/FAQ.html
@@ -10,7 +10,7 @@
alink="#0000ff">
<H1>Frequently Asked Questions (FAQ) for PostgreSQL</H1>
- <P>Last updated: Sun Apr 24 07:27:43 EDT 2005</P>
+ <P>Last updated: Sun Apr 24 07:48:48 EDT 2005</P>
<P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)
@@ -115,6 +115,7 @@
does not exist" errors when accessing temporary tables in PL/PgSQL
functions?<BR>
<A href="#4.20">4.20</A>) What encryption options are available?<BR>
+ <A href="#4.21">4.21</A>) What replication solutions are available?<BR>
<HR>
@@ -984,5 +985,18 @@ length</TD></TR>
<LI>The server can also run using an encrypted file system.</LI>
</UL>
+ <H3><A name="4.21">4.21</A>) What replication solutions are available?
+ </H3>
+ <P>Though "replication" is a single term, there are two major replication
+ technologies. Multi-master replication allows read/write queries to be
+ sent to multiple replicated computers. This capability has a
+ serious performance impact. <A href="http://pgfoundry.org/projects/pgcluster/">
+ Pgcluster</A> is the most popular such solution available for PostgreSQL.
+ Master-slave replication allows a single master to receive read/write
+ queries, with slaves able to accept only read/<SMALL>SELECT</SMALL> queries.
+ The most popular master-slave PostgreSQL replication solution is
+ <A href="http://gborg.postgresql.org/project/slony1/projdisplay.php">
+ Slony</A>. There are also commercial and hardware-based replication
+ solutions available.</P>
</BODY>
</HTML>
--
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