diff --git a/doc/FAQ b/doc/FAQ
index c04ab443097af4d7b3b2fb8613d05052dde234ce..17fbde44fc7fa3df91853258a7cfd7f9c9f71e7e 100644
--- a/doc/FAQ
+++ b/doc/FAQ
@@ -1,7 +1,7 @@
Frequently Asked Questions (FAQ) for PostgreSQL
- Last updated: Sat Jan 29 22:51:43 EST 2005
+ Last updated: Sat Jan 29 22:59:12 EST 2005
Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
@@ -38,20 +38,14 @@
3.1) How do I install PostgreSQL somewhere other than
/usr/local/pgsql?
- 3.2) When I start postmaster, I get a Bad System Call or core dumped
- message. Why?
- 3.3) When I try to start postmaster, I get IpcMemoryCreate errors.
- Why?
- 3.4) When I try to start postmaster, I get IpcSemaphoreCreate errors.
- Why?
- 3.5) How do I control connections from other hosts?
- 3.6) How do I tune the database engine for better performance?
- 3.7) What debugging features are available?
- 3.8) Why do I get "Sorry, too many clients" when trying to connect?
- 3.9) What is in the pgsql_tmp directory?
- 3.10) Why do I need to do a dump and restore to upgrade PostgreSQL
+ 3.2) How do I control connections from other hosts?
+ 3.3) How do I tune the database engine for better performance?
+ 3.4) What debugging features are available?
+ 3.5) Why do I get "Sorry, too many clients" when trying to connect?
+ 3.6) What is in the pgsql_tmp directory?
+ 3.7) Why do I need to do a dump and restore to upgrade PostgreSQL
releases?
- 3.11) What computer hardware should I use?
+ 3.8) What computer hardware should I use?
Operational Questions
@@ -419,43 +413,7 @@
Specify the --prefix option when running configure.
- 3.2) When I start postmaster, I get a Bad System Call or core dumped
- message. Why?
-
- It could be a variety of problems, but first check to see that you
- have System V extensions installed in your kernel. PostgreSQL requires
- kernel support for shared memory and semaphores.
-
- 3.3) When I try to start postmaster, I get IpcMemoryCreate errors. Why?
-
- You either do not have shared memory configured properly in your
- kernel or you need to enlarge the shared memory available in the
- kernel. The exact amount you need depends on your architecture and how
- many buffers and backend processes you configure for postmaster. For
- most systems, with default numbers of buffers and processes, you need
- a minimum of ~1 MB. See the PostgreSQL Administrator's Guide/Server
- Run-time Environment/Managing Kernel Resources section for more
- detailed information about shared memory and semaphores.
-
- 3.4) When I try to start postmaster, I get IpcSemaphoreCreate errors. Why?
-
- If the error message is IpcSemaphoreCreate: semget failed (No space
- left on device) then your kernel is not configured with enough
- semaphores. Postgres needs one semaphore per potential backend
- process. A temporary solution is to start postmaster with a smaller
- limit on the number of backend processes. Use -N with a parameter less
- than the default of 32. A more permanent solution is to increase your
- kernel's SEMMNS and SEMMNI parameters.
-
- Inoperative semaphores can also cause crashes during heavy database
- access.
-
- If the error message is something else, you might not have semaphore
- support configured in your kernel at all. See the PostgreSQL
- Administrator's Guide for more detailed information about shared
- memory and semaphores.
-
- 3.5) How do I control connections from other hosts?
+ 3.2) How do I control connections from other hosts?
By default, PostgreSQL only allows connections from the local machine
using Unix domain sockets or TCP/IP connections. Other machines will
@@ -463,7 +421,7 @@
postgresql.conf and enable host-based authentication by modifying the
file $PGDATA/pg_hba.conf accordingly.
- 3.6) How do I tune the database engine for better performance?
+ 3.3) How do I tune the database engine for better performance?
Certainly, indexes can speed up queries. The EXPLAIN ANALYZE command
allows you to see how PostgreSQL is interpreting your query, and which
@@ -495,7 +453,7 @@
You can also use the CLUSTER command to group data in tables to match
an index. See the CLUSTER manual page for more details.
- 3.7) What debugging features are available?
+ 3.4) What debugging features are available?
PostgreSQL has several features that report status information that
can be valuable for debugging purposes.
@@ -550,7 +508,7 @@ log_*
in the client's current directory. Linux requires a compile with
-DLINUX_PROFILE for proper profiling.
- 3.8) Why do I get "Sorry, too many clients" when trying to connect?
+ 3.5) Why do I get "Sorry, too many clients" when trying to connect?
You need to increase postmaster's limit on how many concurrent backend
processes it can start.
@@ -570,7 +528,7 @@ log_*
that PostgreSQL has a limit on the number of allowed backend processes
is so your system won't run out of resources.
- 3.9) What is in the pgsql_tmp directory?
+ 3.6) What is in the pgsql_tmp directory?
This directory contains temporary files generated by the query
executor. For example, if a sort needs to be done to satisfy an ORDER
@@ -581,7 +539,7 @@ log_*
remain if a backend crashes during a sort. A stop and restart of the
postmaster will remove files from those directories.
- 3.10) Why do I need to do a dump and restore to upgrade between major
+ 3.7) Why do I need to do a dump and restore to upgrade between major
PostgreSQL releases?
The PostgreSQL team makes only small changes between minor releases,
@@ -596,7 +554,7 @@ log_*
script can be used to upgrade without a dump/restore. The release
notes mention whether pg_upgrade is available for the release.
- 3.11) What computer hardware should I use?
+ 3.8) What computer hardware should I use?
Because PC hardware is mostly compatible, people tend to believe that
all PC hardware is of equal quality. It is not. ECC RAM, SCSI, and
diff --git a/doc/src/FAQ/FAQ.html b/doc/src/FAQ/FAQ.html
index 797b708f8f874d00e043930058c840e1fce1884e..b7e62d9f1fe3ee5365831cdb02f08df4b00ef7dc 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: Sat Jan 29 22:51:43 EST 2005</P>
+ <P>Last updated: Sat Jan 29 22:59:12 EST 2005</P>
<P>Current maintainer: Bruce Momjian (<A href=
"mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</A>)<BR>
@@ -56,24 +56,18 @@
<H2 align="center">Administrative Questions</H2>
<A href="#3.1">3.1</A>) How do I install PostgreSQL somewhere other
than <I>/usr/local/pgsql</I>?<BR>
- <A href="#3.2">3.2</A>) When I start <I>postmaster</I>, I get a
- <I>Bad System Call</I> or core dumped message. Why?<BR>
- <A href="#3.3">3.3</A>) When I try to start <I>postmaster</I>, I
- get <I>IpcMemoryCreate</I> errors. Why?<BR>
- <A href="#3.4">3.4</A>) When I try to start <I>postmaster</I>, I
- get <I>IpcSemaphoreCreate</I> errors. Why?<BR>
- <A href="#3.5">3.5</A>) How do I control connections from other
+ <A href="#3.2">3.2</A>) How do I control connections from other
hosts?<BR>
- <A href="#3.6">3.6</A>) How do I tune the database engine for
+ <A href="#3.3">3.3</A>) How do I tune the database engine for
better performance?<BR>
- <A href="#3.7">3.7</A>) What debugging features are available?<BR>
- <A href="#3.8">3.8</A>) Why do I get <I>"Sorry, too many
+ <A href="#3.4">3.4</A>) What debugging features are available?<BR>
+ <A href="#3.5">3.5</A>) Why do I get <I>"Sorry, too many
clients"</I> when trying to connect?<BR>
- <A href="#3.9">3.9</A>) What is in the <I>pgsql_tmp</I>
+ <A href="#3.6">3.6</A>) What is in the <I>pgsql_tmp</I>
directory?<BR>
- <A href="#3.10">3.10</A>) Why do I need to do a dump and restore
+ <A href="#3.7">3.7</A>) Why do I need to do a dump and restore
to upgrade PostgreSQL releases?<BR>
- <A href="#3.11">3.11</A>) What computer hardware should I use?<BR>
+ <A href="#3.8">3.8</A>) What computer hardware should I use?<BR>
<H2 align="center">Operational Questions</H2>
@@ -544,47 +538,7 @@
<P>Specify the <I>--prefix</I> option when running
<I>configure</I>.</P>
- <H4><A name="3.2">3.2</A>) When I start <I>postmaster</I>, I get a
- <I>Bad System Call</I> or core dumped message. Why?</H4>
-
- <P>It could be a variety of problems, but first check to see that
- you have System V extensions installed in your kernel. PostgreSQL
- requires kernel support for shared memory and semaphores.</P>
-
- <H4><A name="3.3">3.3</A>) When I try to start <I>postmaster</I>, I
- get <I>IpcMemoryCreate</I> errors. Why?</H4>
-
- <P>You either do not have shared memory configured properly in your
- kernel or you need to enlarge the shared memory available in the
- kernel. The exact amount you need depends on your architecture and
- how many buffers and backend processes you configure for
- <I>postmaster</I>. For most systems, with default numbers of
- buffers and processes, you need a minimum of ~1 MB. See the <A
- href="http://www.postgresql.org/docs/current/static/kernel-resources.html">PostgreSQL
- Administrator's Guide/Server Run-time Environment/Managing Kernel Resources</A>
- section for more detailed information about shared memory and semaphores.</P>
-
- <H4><A name="3.4">3.4</A>) When I try to start <I>postmaster</I>, I
- get <I>IpcSemaphoreCreate</I> errors. Why?</H4>
-
- <P>If the error message is <I>IpcSemaphoreCreate: semget failed (No
- space left on device)</I> then your kernel is not configured with
- enough semaphores. Postgres needs one semaphore per potential
- backend process. A temporary solution is to start <I>postmaster</I>
- with a smaller limit on the number of backend processes. Use
- <I>-N</I> with a parameter less than the default of 32. A more
- permanent solution is to increase your kernel's
- <SMALL>SEMMNS</SMALL> and <SMALL>SEMMNI</SMALL> parameters.</P>
-
- <P>Inoperative semaphores can also cause crashes during heavy
- database access.</P>
-
- <P>If the error message is something else, you might not have
- semaphore support configured in your kernel at all. See the
- PostgreSQL Administrator's Guide for more detailed information
- about shared memory and semaphores.</P>
-
- <H4><A name="3.5">3.5</A>) How do I control connections from other
+ <H4><A name="3.2">3.2</A>) How do I control connections from other
hosts?</H4>
<P>By default, PostgreSQL only allows connections from the local
@@ -594,7 +548,7 @@
host-based authentication by modifying the file
<I>$PGDATA/pg_hba.conf</I> accordingly.</P>
- <H4><A name="3.6">3.6</A>) How do I tune the database engine for
+ <H4><A name="3.3">3.3</A>) How do I tune the database engine for
better performance?</H4>
<P>Certainly, indexes can speed up queries. The
@@ -633,7 +587,7 @@
data in tables to match an index. See the <SMALL>CLUSTER</SMALL>
manual page for more details.</P>
- <H4><A name="3.7">3.7</A>) What debugging features are
+ <H4><A name="3.4">3.4</A>) What debugging features are
available?</H4>
<P>PostgreSQL has several features that report status information
@@ -691,7 +645,7 @@
file will be put in the client's current directory. Linux requires
a compile with <I>-DLINUX_PROFILE</I> for proper profiling.</P>
- <H4><A name="3.8">3.8</A>) Why do I get <I>"Sorry, too many
+ <H4><A name="3.5">3.5</A>) Why do I get <I>"Sorry, too many
clients"</I> when trying to connect?</H4>
<P>You need to increase <I>postmaster</I>'s limit on how many
@@ -716,7 +670,7 @@
the number of allowed backend processes is so your system won't run
out of resources.</P>
- <H4><A name="3.9">3.9</A>) What is in the <I>pgsql_tmp</I> directory?</H4>
+ <H4><A name="3.6">3.6</A>) What is in the <I>pgsql_tmp</I> directory?</H4>
<P>This directory contains temporary files generated by the query
executor. For example, if a sort needs to be done to satisfy an
@@ -728,7 +682,7 @@
remain if a backend crashes during a sort. A stop and restart of the
<I>postmaster</I> will remove files from those directories.</P>
- <H4><A name="3.10">3.10</A>) Why do I need to do a dump and restore
+ <H4><A name="3.7">3.7</A>) Why do I need to do a dump and restore
to upgrade between major PostgreSQL releases?</H4>
<P>The PostgreSQL team makes only small changes between minor releases,
@@ -744,7 +698,7 @@
The release notes mention whether <I>pg_upgrade</I> is available for the
release.</P>
- <H4><A name="3.11">3.11</A>) What computer hardware should I use?</H4>
+ <H4><A name="3.8">3.8</A>) What computer hardware should I use?</H4>
<P>Because PC hardware is mostly compatible, people tend to believe that
all PC hardware is of equal quality. It is not. ECC RAM, SCSI, and