Re: [HACKERS] SR slaves and .pgpass

2010-06-14 Thread Magnus Hagander
On Mon, Jun 14, 2010 at 04:56, Fujii Masao masao.fu...@gmail.com wrote:
 On Fri, Jun 11, 2010 at 7:14 PM, Heikki Linnakangas
 heikki.linnakan...@enterprisedb.com wrote:
 On 09/06/10 08:24, Fujii Masao wrote:

 On Wed, Jun 9, 2010 at 12:52 PM, Andrew Dunstanand...@dunslane.net
  wrote:

 There is precedent for .pgpass being a bit ambiguous. See the way
 localhost is used.

 OK. The attached patch allows us to use replication in the database
 field of the .pgpass file, for the replication connection.

 Thanks, committed with some rewording of the docs and comments. I hope I
 made them better, not worse.

 I could confirm that this has been committed via git log, but not find
 the related post on the pgsql-committers. Is there a problem in the
 mailing-list?

The cvs server has a delivery of the email to the mailinglist server
at least, so it's not there that has the problem. However, there were
a lot of unexplained issues across multiple hub.org hosted machines
that day (and nearby, iirc), including the mailserver and the dns
servers. It was probably eaten by one of those issues.


-- 
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 Me: http://www.hagander.net/
 Work: http://www.redpill-linpro.com/

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Re: [HACKERS] SR slaves and .pgpass

2010-06-13 Thread Fujii Masao
On Fri, Jun 11, 2010 at 7:14 PM, Heikki Linnakangas
heikki.linnakan...@enterprisedb.com wrote:
 On 09/06/10 08:24, Fujii Masao wrote:

 On Wed, Jun 9, 2010 at 12:52 PM, Andrew Dunstanand...@dunslane.net
  wrote:

 There is precedent for .pgpass being a bit ambiguous. See the way
 localhost is used.

 OK. The attached patch allows us to use replication in the database
 field of the .pgpass file, for the replication connection.

 Thanks, committed with some rewording of the docs and comments. I hope I
 made them better, not worse.

I could confirm that this has been committed via git log, but not find
the related post on the pgsql-committers. Is there a problem in the
mailing-list?

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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Re: [HACKERS] SR slaves and .pgpass

2010-06-11 Thread Heikki Linnakangas

On 09/06/10 08:24, Fujii Masao wrote:

On Wed, Jun 9, 2010 at 12:52 PM, Andrew Dunstanand...@dunslane.net  wrote:

There is precedent for .pgpass being a bit ambiguous. See the way
localhost is used.


OK. The attached patch allows us to use replication in the database
field of the .pgpass file, for the replication connection.


Thanks, committed with some rewording of the docs and comments. I hope I 
made them better, not worse.


--
  Heikki Linnakangas
  EnterpriseDB   http://www.enterprisedb.com

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Re: [HACKERS] SR slaves and .pgpass

2010-06-11 Thread Fujii Masao
On Fri, Jun 11, 2010 at 7:14 PM, Heikki Linnakangas
heikki.linnakan...@enterprisedb.com wrote:
 On 09/06/10 08:24, Fujii Masao wrote:

 On Wed, Jun 9, 2010 at 12:52 PM, Andrew Dunstanand...@dunslane.net
  wrote:

 There is precedent for .pgpass being a bit ambiguous. See the way
 localhost is used.

 OK. The attached patch allows us to use replication in the database
 field of the .pgpass file, for the replication connection.

 Thanks, committed with some rewording of the docs and comments. I hope I
 made them better, not worse.

Yep. Thank a lot.

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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Re: [HACKERS] SR slaves and .pgpass

2010-06-08 Thread Fujii Masao
On Tue, Jun 8, 2010 at 1:13 PM, Tom Lane t...@sss.pgh.pa.us wrote:
 Fujii Masao masao.fu...@gmail.com writes:
 Hmm.. is it worth going back to my proposal?

 I don't recall exactly what proposal you might be referring to, but

http://archives.postgresql.org/pgsql-hackers/2010-01/msg00400.php

 I'm hesitant to put any large amount of work into hacking .pgpass
 processing for this.  The whole business of replication authorization
 is likely to get revisited in 9.1, no?  I think a cheap-and-cheerful
 solution is about right for the moment.

Fair enough. My proposal patch might be too large to apply at this
point.

 -   snprintf(conninfo_repl, sizeof(conninfo_repl), %s 
 replication=true, conninfo);
 +   snprintf(conninfo_repl, sizeof(conninfo_repl), %s 
 database=replication replication=true, conninfo);

Tom's proposal is very small, but we cannot distinguish the password
for replication purpose from that for the real database named replication.
Is this OK? I can live with this as far as it's documented.

Regards,

-- 
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NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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Re: [HACKERS] SR slaves and .pgpass

2010-06-08 Thread Andrew Dunstan



Fujii Masao wrote:

Tom's proposal is very small, but we cannot distinguish the password
for replication purpose from that for the real database named replication.
Is this OK? I can live with this as far as it's documented.

  


There is precedent for .pgpass being a bit ambiguous. See the way 
localhost is used.


cheers

andrew

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Re: [HACKERS] SR slaves and .pgpass

2010-06-08 Thread Fujii Masao
On Wed, Jun 9, 2010 at 12:52 PM, Andrew Dunstan and...@dunslane.net wrote:
 There is precedent for .pgpass being a bit ambiguous. See the way
 localhost is used.

OK. The attached patch allows us to use replication in the database
field of the .pgpass file, for the replication connection.

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center


pgpass_v1.patch
Description: Binary data

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Re: [HACKERS] SR slaves and .pgpass

2010-06-07 Thread Fujii Masao
On Mon, Jun 7, 2010 at 5:42 AM, Andrew Dunstan and...@dunslane.net wrote:

 The docs state, w.r.t. $subject:

   The password can be provided either in the primary_conninfo string
   or in a separate ~/.pgpass file on the standby server.

 I tried this with a database name of replication in the .pgpass file,
 which matches what we need to use in pg_hba.conf, but it failed miserably,
 and only worked when I used a wildcard for the database name in the .pgpass
 file.

 If this is expected it needs to be documented more clearly; if not, it's a
 bug.

Yep, this is expected, so we need to improve the doc. What about:


diff --git a/doc/src/sgml/high-availability.sgml
b/doc/src/sgml/high-availability.sgml
index 5c0d9ab..458a4e2 100644
--- a/doc/src/sgml/high-availability.sgml
+++ b/doc/src/sgml/high-availability.sgml
@@ -819,7 +819,9 @@ hostreplication foo
192.168.1.100/32md5
 para
  The host name and port number of the primary, connection user name,
  and password are specified in the filenamerecovery.conf/ file or
- the corresponding environment variable on the standby.
+ in a separate filename~/.pgpass/ on the standby (In the latter case,
+ literaldatabase/ field in a filename~/.pgpass/ file must be
+ literal*/).
  For example, if the primary is running on host IP
literal192.168.1.50/,
  port literal5432/literal, the superuser's name for replication is
  literalfoo/, and the password is literalfoopass/, the
administrator
diff --git a/doc/src/sgml/recovery-config.sgml
b/doc/src/sgml/recovery-config.sgml
index 439db3f..cc351f8 100644
--- a/doc/src/sgml/recovery-config.sgml
+++ b/doc/src/sgml/recovery-config.sgml
@@ -268,9 +268,11 @@ restore_command = 'copy
C:\\server\\archivedir\\%f %p'  # Windows
   primary (see
   xref linkend=streaming-replication-authentication).
   A password needs to be provided too, if the primary demands password
-  authentication.  (The password can be provided either in
+  authentication.  The password can be provided either in
   the varnameprimary_conninfo/varname string or in a separate
-  filename~/.pgpass/ file on the standby server.)
+  filename~/.pgpass/ file on the standby server (in the
latter case,
+  literaldatabase/ field in a filename~/.pgpass/ file must be
+  literal*/).
   Do not specify a database name in the
   varnameprimary_conninfo/varname string.
  /para

Regards,

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NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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Re: [HACKERS] SR slaves and .pgpass

2010-06-07 Thread Tom Lane
Fujii Masao masao.fu...@gmail.com writes:
 On Mon, Jun 7, 2010 at 5:42 AM, Andrew Dunstan and...@dunslane.net wrote:
 I tried this with a database name of replication in the .pgpass file,
 which matches what we need to use in pg_hba.conf, but it failed miserably,
 and only worked when I used a wildcard for the database name in the .pgpass
 file.
 
 If this is expected it needs to be documented more clearly; if not, it's a
 bug.

 Yep, this is expected, so we need to improve the doc.

Why don't we improve the code, instead?  In particular make
libpqrcv_connect() do

-   snprintf(conninfo_repl, sizeof(conninfo_repl), %s replication=true, 
conninfo);
+   snprintf(conninfo_repl, sizeof(conninfo_repl), %s database=replication 
replication=true, conninfo);

I don't think it's unlikely that someone would try to enter a
replication-specific password into ~/.pgpass.

regards, tom lane

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Re: [HACKERS] SR slaves and .pgpass

2010-06-07 Thread Andrew Dunstan



Tom Lane wrote:

Why don't we improve the code, instead?  In particular make
libpqrcv_connect() do

-   snprintf(conninfo_repl, sizeof(conninfo_repl), %s replication=true, 
conninfo);
+   snprintf(conninfo_repl, sizeof(conninfo_repl), %s database=replication 
replication=true, conninfo);

I don't think it's unlikely that someone would try to enter a
replication-specific password into ~/.pgpass.


  


+1. It's highly likely - that's how we got here in the first place. It 
seems to me like a perfectly reasonable thing to do.


cheers

andrew

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Re: [HACKERS] SR slaves and .pgpass

2010-06-07 Thread Fujii Masao
On Tue, Jun 8, 2010 at 12:42 AM, Tom Lane t...@sss.pgh.pa.us wrote:
 Fujii Masao masao.fu...@gmail.com writes:
 On Mon, Jun 7, 2010 at 5:42 AM, Andrew Dunstan and...@dunslane.net wrote:
 I tried this with a database name of replication in the .pgpass file,
 which matches what we need to use in pg_hba.conf, but it failed miserably,
 and only worked when I used a wildcard for the database name in the .pgpass
 file.

 If this is expected it needs to be documented more clearly; if not, it's a
 bug.

 Yep, this is expected, so we need to improve the doc.

 Why don't we improve the code, instead?  In particular make
 libpqrcv_connect() do

 -       snprintf(conninfo_repl, sizeof(conninfo_repl), %s replication=true, 
 conninfo);
 +       snprintf(conninfo_repl, sizeof(conninfo_repl), %s 
 database=replication replication=true, conninfo);

What if the real database named replication exists? How can we
specify the password only for replication purpose in that case?

BTW, to distinguish the replication connection from the connection
to the real database named replication, I proposed changing the
.pgpass code so that it accepts the keyword only for replication,
like pg_hba.conf. But it was rejected, and as the result of the
discussion, we had consensus to not change the code.
http://archives.postgresql.org/pgsql-hackers/2010-01/msg00400.php

 I don't think it's unlikely that someone would try to enter a
 replication-specific password into ~/.pgpass.

Agreed.

But I think that we don't need to specify other than the wildcard
in the database field of .pgpass to use the replication-specific
password if the replication-specific user is supplied in .pgpass.
So the current code is enough for me. Am I missing something?

Regards,

-- 
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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Re: [HACKERS] SR slaves and .pgpass

2010-06-07 Thread Tom Lane
Fujii Masao masao.fu...@gmail.com writes:
 But I think that we don't need to specify other than the wildcard
 in the database field of .pgpass to use the replication-specific
 password if the replication-specific user is supplied in .pgpass.
 So the current code is enough for me. Am I missing something?

You're looking at it from the perspective of somebody who knows
exactly how the code works.  What Andrew tried is exactly what
95% of other people would try.  There doesn't seem to me to be
any very good argument against making it work for them.

regards, tom lane

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Re: [HACKERS] SR slaves and .pgpass

2010-06-07 Thread Fujii Masao
On Tue, Jun 8, 2010 at 12:01 PM, Tom Lane t...@sss.pgh.pa.us wrote:
 Fujii Masao masao.fu...@gmail.com writes:
 But I think that we don't need to specify other than the wildcard
 in the database field of .pgpass to use the replication-specific
 password if the replication-specific user is supplied in .pgpass.
 So the current code is enough for me. Am I missing something?

 You're looking at it from the perspective of somebody who knows
 exactly how the code works.  What Andrew tried is exactly what
 95% of other people would try.  There doesn't seem to me to be
 any very good argument against making it work for them.

Hmm.. is it worth going back to my proposal?

Regards,

-- 
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NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

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Re: [HACKERS] SR slaves and .pgpass

2010-06-07 Thread Tom Lane
Fujii Masao masao.fu...@gmail.com writes:
 Hmm.. is it worth going back to my proposal?

I don't recall exactly what proposal you might be referring to, but
I'm hesitant to put any large amount of work into hacking .pgpass
processing for this.  The whole business of replication authorization
is likely to get revisited in 9.1, no?  I think a cheap-and-cheerful
solution is about right for the moment.

regards, tom lane

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[HACKERS] SR slaves and .pgpass

2010-06-06 Thread Andrew Dunstan


The docs state, w.r.t. $subject:

   The password can be provided either in the primary_conninfo string
   or in a separate ~/.pgpass file on the standby server.

I tried this with a database name of replication in the .pgpass file, 
which matches what we need to use in pg_hba.conf, but it failed 
miserably, and only worked when I used a wildcard for the database name 
in the .pgpass file.


If this is expected it needs to be documented more clearly; if not, it's 
a bug.


I expect this to be quite  a common thing to do - many people will be 
like me and dislike putting passwords in config files.


cheers

andrerw

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