Desperate help needed for Replication

Started by Chris M. Gambleover 22 years ago6 messagesgeneral
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#1Chris M. Gamble
chris.gamble@cpbinc.com

I am trying to perform what I best understand as Multi-master asynchronous replication for postgres 7.3.3 servers. After researching, I tried the pgReplication project (and made the simple modification as listed in their mailing lists), but was not able to build the environment needed for Redhat 7.3.

My question is: is anyone doing this type of replication, and if you are not using pgReplicate, then what are you using?

Thank you,

#2Martín Marqués
martin@bugs.unl.edu.ar
In reply to: Chris M. Gamble (#1)
Re: Desperate help needed for Replication

El Jue 23 Oct 2003 19:41, Chris M. Gamble escribió:

I am trying to perform what I best understand as Multi-master asynchronous

replication for postgres 7.3.3 servers. After researching, I tried the
pgReplication project (and made the simple modification as listed in their
mailing lists), but was not able to build the environment needed for Redhat
7.3.

My question is: is anyone doing this type of replication, and if you are not

using pgReplicate, then what are you using?

1) I think the best shot should be eRServ

http://gborg.postgresql.org/project/erserver/projdisplay.php

2) Upgrade your DB server to 7.3.4. Your actual version has a serious bug
which can cause crashes of the system.

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Martín Marqués | mmarques@unl.edu.ar
Programador, Administrador, DBA | Centro de Telemática
Universidad Nacional
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#3Chris M. Gamble
chris.gamble@cpbinc.com
In reply to: Martín Marqués (#2)
Re: Desperate help needed for Replication

Isnt the erserv project limited to Read-only slave stations?

When I looked at it, it did not seem to indicate that I could make an update on any of the postgres servers and have that update replicated to all others. It looked as though I could only update at 1 server.

Show quoted text

El Jue 23 Oct 2003 19:41, Chris M. Gamble escribió:

I am trying to perform what I best understand as Multi-master asynchronous

replication for postgres 7.3.3 servers. After researching, I tried the
pgReplication project (and made the simple modification as listed in their
mailing lists), but was not able to build the environment needed for Redhat
7.3.

My question is: is anyone doing this type of replication, and if you are not

using pgReplicate, then what are you using?

1) I think the best shot should be eRServ

http://gborg.postgresql.org/project/erserver/projdisplay.php

2) Upgrade your DB server to 7.3.4. Your actual version has a serious bug
which can cause crashes of the system.

#4Martín Marqués
martin@bugs.unl.edu.ar
In reply to: Chris M. Gamble (#3)
Re: Desperate help needed for Replication

Yes, just saw that about the multi-master. It's in the feature request list.
Anyway, it's the best replication I've got my hands on. Else, you might have
to buy some commercial Replication aplicaction, but I don't know which would
be suitable for you're needs.

El Jue 23 Oct 2003 19:55, Chris M. Gamble escribió:

Isnt the erserv project limited to Read-only slave stations?

When I looked at it, it did not seem to indicate that I could make an

update on any of the postgres servers and have that update replicated to all
others. It looked as though I could only update at 1 server.

El Jue 23 Oct 2003 19:41, Chris M. Gamble escribió:

I am trying to perform what I best understand as Multi-master

asynchronous

replication for postgres 7.3.3 servers. After researching, I tried the
pgReplication project (and made the simple modification as listed in their
mailing lists), but was not able to build the environment needed for

Redhat

7.3.

My question is: is anyone doing this type of replication, and if you are

not

using pgReplicate, then what are you using?

1) I think the best shot should be eRServ

http://gborg.postgresql.org/project/erserver/projdisplay.php

2) Upgrade your DB server to 7.3.4. Your actual version has a serious bug
which can cause crashes of the system.

---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster

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Martín Marqués | mmarques@unl.edu.ar
Programador, Administrador, DBA | Centro de Telemática
Universidad Nacional
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-----------------------------------------------------------------

#5Andrew Sullivan
andrew@libertyrms.info
In reply to: Martín Marqués (#2)
Re: Desperate help needed for Replication

On Thu, Oct 23, 2003 at 07:53:08PM -0300, Martin Marques wrote:

El Jue 23 Oct 2003 19:41, Chris M. Gamble escribi?:

I am trying to perform what I best understand as Multi-master asynchronous

replication for postgres 7.3.3 servers. After researching, I tried the

1) I think the best shot should be eRServ

It most certainly would not. Erserver is good for exactly one thing
(and some people think it isn't good at this): single-master,
possibly-multi-slave asynchronous replication. Given its current
design, it will _never_ be able to do multi-master replication unless
it is "data merge" sort of stuff (e.g. table1 and table 2 on db1;
table 3 and table 4 on db2; and table1, table 2, table3, and table4
on db3).

A

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Andrew Sullivan                         204-4141 Yonge Street
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#6Andrew Sullivan
andrew@libertyrms.info
In reply to: Chris M. Gamble (#3)
Re: Desperate help needed for Replication

On Thu, Oct 23, 2003 at 05:55:10PM -0500, Chris M. Gamble wrote:

update replicated to all others. It looked as though I could
only update at 1 server.

That's right. At the moment, AFAIK, nobody can offer what you want,
although I have heard suggestions otherwise. The distance that IK
travels is limited :-/

A
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Andrew Sullivan 204-4141 Yonge Street
Afilias Canada Toronto, Ontario Canada
<andrew@libertyrms.info> M2P 2A8
+1 416 646 3304 x110