Add replication FAQ item.

diff --git a/doc/FAQ b/doc/FAQ
index f1bb92b1892b30bae9744b2e11438ed01460121c..5aa0135972e23bf594cc06d110394799a0ead903 100644 (file)
--- 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 ([email protected])
    
@@ -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 d20eca6e901db4881f977a2a9934d56b07fc4ca8..28f08b5138c6426571eacd62aa35dfdb6bef34a1 100644 (file)
--- a/doc/src/FAQ/FAQ.html
+++ b/doc/src/FAQ/FAQ.html
@@ -10,7 +10,7 @@
   alink="#0000ff">
     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 (
     "mailto:[email protected]">[email protected])
@@ -115,6 +115,7 @@
     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?
      
 
     
@@ -984,5 +985,18 @@ length
     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.