8000 Remove our inadequate kluge that tried to get AIX's various broken ve… · postgrespro/postgres_cluster@db16e77 · GitHub
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Remove our inadequate kluge that tried to get AIX's various broken versions
of getaddrinfo() to work. Instead, recommend updating the OS to get a working version of getaddrinfo. Per recent discussions.
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‎doc/src/sgml/installation.sgml

Lines changed: 64 additions & 51 deletions
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@@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.321 2009/04/27 16:27:35 momjian Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/installation.sgml,v 1.322 2009/06/11 19:00:14 tgl Exp $ -->
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<chapter id="installation">
44
<title><![%standalone-include[<productname>PostgreSQL</>]]>
@@ -2090,7 +2090,7 @@ kill `cat /usr/local/pgsql/data/postmaster.pid`
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<para>
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On AIX 4.3.2, you need <filename>libm.a</filename> that is in the
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fileset bos.adt.libm. Try the following command:
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fileset <literal>bos.adt.libm</>. Try the following command:
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<screen>
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$ lslpp -l bos.adt.libm
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</screen>
@@ -2120,11 +2120,11 @@ $ lslpp -l bos.adt.libm
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<para>
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AIX 5.3 has a problem
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where <structname>sockadr_storage</structname> is not defined to
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where <structname>sockaddr_storage</structname> is not defined to
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be large enough. In version 5.3, IBM increased the size of
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<structname>sockaddr_un</structname>, the address structure for
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Unix-domain sockets, but did not correspondingly increase the
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size of <structname>sockadr_storage</structname>. The result of
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size of <structname>sockaddr_storage</structname>. The result of
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this is that attempts to use Unix-domain sockets with PostgreSQL
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lead to libpq overflowing the data structure. TCP/IP connections
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work OK, but not Unix-domain sockets, which prevents the
@@ -2142,7 +2142,66 @@ $ lslpp -l bos.adt.libm
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</sect3>
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<sect3>
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<title>Memory Management</title>
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<title>Internet address issues</title>
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<para>
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PostgreSQL relies on the system's <function>getaddrinfo</> function
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to parse IP addresses in <varname>listen_addresses</>,
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<filename>pg_hba.conf</>, etc. Older versions of AIX have assorted
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bugs in this function. If you have problems related to these settings,
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updating to the latest fix pack for your AIX release should fix it.
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</para>
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<!-- http://archives.postgresql.org/message-id/6064jt6cfm.fsf_-_@dba2.int.libertyrms.com -->
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<para>
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One user reports:
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</para>
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<para>
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When implementing PostgreSQL version 8.1 on AIX 5.3, we
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periodically ran into problems where the statistics collector
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would <quote>mysteriously</quote> not come up successfully. This
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appears to be the result of unexpected behaviour in the IPv6
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implementation. It looks like PostgreSQL and IPv6 do not play
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very well together at this time on AIX.
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</para>
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<para>
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Any of the following actions <quote>fix</quote> the problem.
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<itemizedlist>
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<listitem>
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<para>
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Delete the IPv6 address for localhost:
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<screen>
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(as root)
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# ifconfig lo0 inet6 ::1/0 delete
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</screen>
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</para>
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</listitem>
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<listitem>
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<para>
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Remove IPv6 from net services. The
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file <filename>/etc/netsvc.conf</filename> on AIX is roughly
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equivalent to <filename>/etc/nsswitch.conf</filename> on
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Solaris/Linux. The default, on AIX, is thus:
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<programlisting>
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hosts=local,bind
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</programlisting>
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Replace this with:
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<programlisting>
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hosts=local4,bind4
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</programlisting>
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to deactivate searching for IPv6 addresses.
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</para>
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</listitem>
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</itemizedlist>
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</para>
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</sect3>
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<sect3>
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<title>Memory management</title>
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<!-- http://archives.postgresql.org/message-id/603bgqmpl9.fsf@dba2.int.libertyrms.com -->
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<para>
@@ -2292,52 +2351,6 @@ createlang: language installation failed: ERROR: could not load library "/opt/d
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</biblioentry>
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</bibliography>
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</sect3>
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<sect3>
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<title>Statistics Collector Issues</title>
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<!-- http://archives.postgresql.org/message-id/6064jt6cfm.fsf_-_@dba2.int.libertyrms.com -->
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<para>
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When implementing PostgreSQL version 8.1 on AIX 5.3, we
2302-
periodically ran into problems where the statistics collector
2303-
would <quote>mysteriously</quote> not come up successfully. This
2304-
appears to be the result of unexpected behaviour in the IPv6
2305-
implementation. It looks like PostgreSQL and IPv6 do not play
2306-
very well together at this time on AIX.
2307-
</para>
2308-
2309-
<para>
2310-
Any of the following actions <quote>fix</quote> the problem.
2311-
<itemizedlist>
2312-
<listitem>
2313-
<para>
2314-
Delete the IPv6 address for localhost:
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<screen>
2316-
(as root)
2317-
# ifconfig lo0 inet6 ::1/0 delete
2318-
</screen>
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</para>
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</listitem>
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<listitem>
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<para>
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Remove IPv6 from net services. The
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file <filename>/etc/netsvc.conf</filename> on AIX is roughly
2326-
equivalent to <filename>/etc/nsswitch.conf</filename> on
2327-
Solaris/Linux. The default, on AIX, is thus:
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<programlisting>
2329-
hosts=local,bind
2330-
</programlisting>
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Replace this with:
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<programlisting>
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hosts=local4,bind4
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</programlisting>
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to deactivate searching for IPv6 addresses.
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</para>
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</listitem>
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</itemizedlist>
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</para>
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</sect3>
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</sect2>
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<sect2 id="installation-notes-cygwin">

‎src/backend/libpq/ip.c

Lines changed: 1 addition & 37 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/libpq/ip.c,v 1.46 2009/06/11 14:48:58 momjian Exp $
11+
* $PostgreSQL: pgsql/src/backend/libpq/ip.c,v 1.47 2009/06/11 19:00:15 tgl Exp $
1212
*
1313
* This file and the IPV6 implementation were initially provided by
1414
* Nigel Kukard <nkukard@lbsd.net>, Linux Based Systems Design
@@ -74,45 +74,9 @@ pg_getaddrinfo_all(const char *hostname, const char *servname,
7474
return getaddrinfo_unix(servname, hintp, result);
7575
#endif
7676

77-
#ifndef _AIX
7877
/* NULL has special meaning to getaddrinfo(). */
7978
rc = getaddrinfo((!hostname || hostname[0] == '\0') ? NULL : hostname,
8079
servname, hintp, result);
81-
#else /* _AIX */
82-
83-
/*
84-
* Various versions of AIX have various bugs in getaddrinfo()'s handling
85-
* of the servname parameter, including failing entirely if it's not NULL
86-
* and failing to zero sin_port when it is NULL :-(. Avoid these by
87-
* always passing NULL and handling the port number for ourselves.
88-
*/
89-
rc = getaddrinfo((!hostname || hostname[0] == '\0') ? NULL : hostname,
90-
NULL, hintp, result);
91-
92-
if (rc == 0)
93-
{
94-
struct addrinfo *addr;
95-
unsigned short port = 0;
96-
97-
if (servname && *servname)
98-
port = atoi(servname);
99-
100-
for (addr = *result; addr; addr = addr->ai_next)
101-
{
102-
switch (addr->ai_family)
103-
{
104-
case AF_INET:
105-
((struct sockaddr_in *) addr->ai_addr)->sin_port = htons(port);
106-
break;
107-
#ifdef HAVE_IPV6
108-
case AF_INET6:
109-
((struct sockaddr_in6 *) addr->ai_addr)->sin6_port = htons(port);
110-
break;
111-
#endif
112-
}
113-
}
114-
}
115-
#endif /* _AIX */
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11781
return rc;
11882
}

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