postgres-xc-general Mailing List for Postgres-XC (Page 31)

On Mon, Aug 5, 2013 at 10:01 PM, Afonso Bione <aag...@gm...> wrote:

> Dear Friends,
>
> Could someone give me a clue about this error:
> "unexpected EOF on client connection"
> My topology is
> node 0 (192.168.0.100)
> gtm, gtm_proxy, and datanode1 on node0,
>
> on node1 (other machine) (192.168.0.101)
> gtm_proxy linked to GTM (node0)
> coodinator2 linked to gtm_proxy (node1) and pooler (datanode2)
> datanode2 linked to gtm_proxy (node1)
>    any ideas?
>
Without more information like the logs of the server(s) involved, the
version used, or the SQL pattern used to reproduce this problem, it is
going to be hard to guess what is actually wrong in your cluster.
-- 
Michael

Dear Friends,

Could someone give me a clue about this error:
"unexpected EOF on client connection"
My topology is
node 0 (192.168.0.100)
gtm, gtm_proxy, and datanode1 on node0,

on node1 (other machine) (192.168.0.101)
gtm_proxy linked to GTM (node0)
coodinator2 linked to gtm_proxy (node1) and pooler (datanode2)
datanode2 linked to gtm_proxy (node1)
   any ideas?

Best Regards
Afonso Bione

Hello;

My e-mail account was hacked this morning and bad fraud message was sent to
some of my e-mail recipients.   It's asking your help to me.   Please
ignore it.

I regained control over my e-mail account and will change the account for
security.   Please allow me a couple of days for this.

Thank you very much;
----------
Koichi Suzuki

Hi Afonso,


> but i got another error:
>
> ERROR: SAVEPOINT is not yet supported.
>
> Could you help me again?
> install moodle is very important for my research on "University Federal
> Rural  of Pernambuco" -  Brazil
>

I think Moodle uses ODBC to connect to PostgreSQL.

Please try to change the settings as per this link to see if that helps.
Note, you might get more errors if the settings don't work, so YMMV. Try
the "Nop" or "Transaction" values.

http://www.postgresql.org/message-id/447...@tp...

HTH,
Nikhils

 Best Regards
> Afonso Bione
>
>
> On Fri, Aug 2, 2013 at 12:56 PM, Sean Hogan <se...@co...> wrote:
>
>>  Hi,
>>
>> I'm beginning to evaluate Postgres-XC as a possible replacement for a
>> pgpool-II cluster.  It looks intriguing so far.
>>
>> In the 1.1 beta release notes at
>> http://postgres-xc.sourceforge.net/docs/1_1_beta/release-xc-1-1.html,
>> under Restrictions, it says "DML cannot be used in plpgsql functions".
>> Should that say "DDL"?  What is the reason for the restriction?
>>
>> Thanks,
>> Sean
>>
>>
>> ------------------------------------------------------------------------------
>> Get your SQL database under version control now!
>> Version control is standard for application code, but databases havent
>> caught up. So what steps can you take to put your SQL databases under
>> version control? Why should you start doing it? Read more to find out.
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk
>> _______________________________________________
>> Postgres-xc-general mailing list
>> Pos...@li...
>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>>
>>
>
>
> ------------------------------------------------------------------------------
> Get your SQL database under version control now!
> Version control is standard for application code, but databases havent
> caught up. So what steps can you take to put your SQL databases under
> version control? Why should you start doing it? Read more to find out.
> http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>
>


-- 
StormDB - http://www.stormdb.com
The Database Cloud

Thanks for the help,

but i got another error:

ERROR: SAVEPOINT is not yet supported.

Could you help me again?
install moodle is very important for my research on "University Federal
Rural  of Pernambuco" -  Brazil
Best Regards
Afonso Bione


On Fri, Aug 2, 2013 at 12:56 PM, Sean Hogan <se...@co...> wrote:

>  Hi,
>
> I'm beginning to evaluate Postgres-XC as a possible replacement for a
> pgpool-II cluster.  It looks intriguing so far.
>
> In the 1.1 beta release notes at
> http://postgres-xc.sourceforge.net/docs/1_1_beta/release-xc-1-1.html,
> under Restrictions, it says "DML cannot be used in plpgsql functions".
> Should that say "DDL"?  What is the reason for the restriction?
>
> Thanks,
> Sean
>
>
> ------------------------------------------------------------------------------
> Get your SQL database under version control now!
> Version control is standard for application code, but databases havent
> caught up. So what steps can you take to put your SQL databases under
> version control? Why should you start doing it? Read more to find out.
> http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>
>

Thanks Michael for announcing.

----------
Koichi Suzuki


2013/7/23 Michael Paquier <mic...@gm...>

> Hi all,
>
> The list of accepted presentations for Postgres Open is out and there is a
> Postgres-XC presentation:
> http://www.postgresopen.org/2013/schedule/presentations/320/
>
> This is about dynamic cluster management.
> Regards,
> --
> Michael
>
>
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>
>

Hi all,

The list of accepted presentations for Postgres Open is out and there is a
Postgres-XC presentation:
http://www.postgresopen.org/2013/schedule/presentations/320/

This is about dynamic cluster management.
Regards,
-- 
Michael

Hi,
Thanks for replies ;-),

So are chances to add this feature into the project?
Now i must use Pgpool-II to creating load balancing fuctionality ( in 
master-salve configuration :/), configuration master-master in this case 
will be much better...

Regards,
W dniu 2013-07-22 03:08, 鈴木 幸市 pisze:
> Priority depends upon how it is demanded.  Yes, so far, the priority 
> is not high.  On the other hand, I expect the development effort is 
> not too much.
> ---
> Koichi Suzuki
>
>
>
> On 2013/07/21, at 22:46, Michael Paquier <mic...@gm... 
> <mailto:mic...@gm...>> wrote:
>
>>
>>
>>
>> On Sun, Jul 21, 2013 at 10:10 PM, Tomasz Straszewski 
>> <str...@gm... <mailto:str...@gm...>> 
>> wrote:
>>
>>     W dniu 2013-07-21 00:01, Michael Paquier pisze:
>>>
>>>
>>>
>>>     On Sun, Jul 21, 2013 at 12:24 AM, Tomasz Straszewski
>>>     <str...@gm...
>>>     <mailto:str...@gm...>> wrote:
>>>
>>>         Hi,
>>>
>>>         I have a question about transactions, i readed that
>>>         postgres-xc doesn't
>>>         support savepoints. What happens if transaction fails ?
>>>
>>>     All the modifications done by this transaction are dropped on
>>>     all the nodes involved as it rollbacks.
>>>     -- 
>>>     Michael
>>
>>     Hi,
>>     I have one more question.
>>
>>     Are plans to add functionality of creating save points in future
>>     releases ?
>>
>> It is not explicitly listed in the roadmap maintained by the main 
>> developers:
>> http://postgres-xc.sourceforge.net/
>> And as I recall it is not a high priority.
>> -- 
>> Michael
>> ------------------------------------------------------------------------------
>> See everything from the browser to the database with AppDynamics
>> Get end-to-end visibility with application monitoring from AppDynamics
>> Isolate bottlenecks and diagnose root cause in seconds.
>> Start your free trial of AppDynamics Pro today!
>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk_______________________________________________
>> Postgres-xc-general mailing list
>> Pos...@li...
>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>

Sent from my IPhone

On Jul 21, 2013, at 9:08 PM, 鈴木 幸市<ko...@in...> wrote:

> Priority depends upon how it is demanded.  Yes, so far, the priority is not high.  On the other hand, I expect the development effort is not too much.

I agree, it is probably not bad.

> ---
> Koichi Suzuki
> 
> 
> 
> On 2013/07/21, at 22:46, Michael Paquier <mic...@gm...> wrote:
> 
>> 
>> 
>> 
>> On Sun, Jul 21, 2013 at 10:10 PM, Tomasz Straszewski <str...@gm...> wrote:
>> W dniu 2013-07-21 00:01, Michael       Paquier pisze:
>>> 
>>> 
>>> 
>>> On Sun, Jul 21, 2013 at 12:24 AM, Tomasz Straszewski <str...@gm...> wrote:
>>> Hi,
>>> 
>>> I have a question about transactions, i readed that postgres-xc doesn't
>>> support savepoints. What happens if transaction fails ?
>>> All the modifications done by this transaction are dropped on all the nodes involved as it rollbacks.
>>> -- 
>>> Michael
>> 
>> Hi,
>> I have one more question.
>> 
>> Are plans to add functionality of creating save points in future releases ?
>> It is not explicitly listed in the roadmap maintained by the main developers:
>> http://postgres-xc.sourceforge.net/
>> And as I recall it is not a high priority.
>> -- 
>> Michael
>> ------------------------------------------------------------------------------
>> See everything from the browser to the database with AppDynamics
>> Get end-to-end visibility with application monitoring from AppDynamics
>> Isolate bottlenecks and diagnose root cause in seconds.
>> Start your free trial of AppDynamics Pro today!
>> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk_______________________________________________
>> Postgres-xc-general mailing list
>> Pos...@li...
>> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
> 
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general

On 20 July 2013 20:54, Tomasz Straszewski <str...@gm...>wrote:

> Hi,
>
> I have a question about transactions, i readed that postgres-xc doesn't
> support savepoints. What happens if transaction fails ?
>

Attempt to create savepoint will return "Not Supported" error, so the
transaction aborts at the point where you create the savepoint.



>
> My application use postgreSQL and implement savepoint dao class with
> create savepoint in database. I want to migrate from postgreSQL to
> postgres-xc and i don't know what to do in this situation.
>
> Regards
>
>
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>

Priority depends upon how it is demanded.  Yes, so far, the priority is not high.  On the other hand, I expect the development effort is not too much.
---
Koichi Suzuki



On 2013/07/21, at 22:46, Michael Paquier <mic...@gm...> wrote:

> 
> 
> 
> On Sun, Jul 21, 2013 at 10:10 PM, Tomasz Straszewski <str...@gm...> wrote:
> W dniu 2013-07-21 00:01, Michael Paquier pisze:
>> 
>> 
>> 
>> On Sun, Jul 21, 2013 at 12:24 AM, Tomasz Straszewski <str...@gm...> wrote:
>> Hi,
>> 
>> I have a question about transactions, i readed that postgres-xc doesn't
>> support savepoints. What happens if transaction fails ?
>> All the modifications done by this transaction are dropped on all the nodes involved as it rollbacks.
>> -- 
>> Michael
> 
> Hi,
> I have one more question.
> 
> Are plans to add functionality of creating save points in future releases ?
> It is not explicitly listed in the roadmap maintained by the main developers:
> http://postgres-xc.sourceforge.net/
> And as I recall it is not a high priority.
> -- 
> Michael
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk_______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general

On Sun, Jul 21, 2013 at 10:10 PM, Tomasz Straszewski <
str...@gm...> wrote:

>  W dniu 2013-07-21 00:01, Michael Paquier pisze:
>
>
>
>
> On Sun, Jul 21, 2013 at 12:24 AM, Tomasz Straszewski <
> str...@gm...> wrote:
>
>> Hi,
>>
>> I have a question about transactions, i readed that postgres-xc doesn't
>> support savepoints. What happens if transaction fails ?
>>
> All the modifications done by this transaction are dropped on all the
> nodes involved as it rollbacks.
>  --
> Michael
>
>
> Hi,
> I have one more question.
>
> Are plans to add functionality of creating save points in future releases ?
>
It is not explicitly listed in the roadmap maintained by the main
developers:
http://postgres-xc.sourceforge.net/
And as I recall it is not a high priority.
-- 
Michael

W dniu 2013-07-21 00:01, Michael Paquier pisze:
>
>
>
> On Sun, Jul 21, 2013 at 12:24 AM, Tomasz Straszewski 
> <str...@gm... <mailto:str...@gm...>> 
> wrote:
>
>     Hi,
>
>     I have a question about transactions, i readed that postgres-xc
>     doesn't
>     support savepoints. What happens if transaction fails ?
>
> All the modifications done by this transaction are dropped on all the 
> nodes involved as it rollbacks.
> -- 
> Michael

Hi,
I have one more question.

Are plans to add functionality of creating save points in future releases ?

Reagrds.

On Sun, Jul 21, 2013 at 12:24 AM, Tomasz Straszewski <
str...@gm...> wrote:

> Hi,
>
> I have a question about transactions, i readed that postgres-xc doesn't
> support savepoints. What happens if transaction fails ?
>
All the modifications done by this transaction are dropped on all the nodes
involved as it rollbacks.
-- 
Michael

Hi,

I have a question about transactions, i readed that postgres-xc doesn't 
support savepoints. What happens if transaction fails ?

My application use postgreSQL and implement savepoint dao class with 
create savepoint in database. I want to migrate from postgreSQL to 
postgres-xc and i don't know what to do in this situation.

Regards

Thank you Mason for the quick response.   Following is my quick answer to
the question.  I hope it helps.

Best;
----------
Koichi Suzuki


2013/7/9 Adam Dec <ada...@gm...>

> Hi!
>
> I am considering to use Postgres XC in my project, I have some basic
> questions:
>
> 1. What is the project vision (in long term)?
>

We will continue to innovate read/write scalability, availability and
operation such as:
1. Continue to improve the planner to produce better distributed query
planning for various applications.
2. More scalability in read applications.
3. Integration with HA middleware (external project)
4. Simpler configuration/operation interface. (both internal/external
project)


> 2. How quick/often is the dev support in case of any critical issues?
>

So far, we don't have dedicated supporting farm.   I believe any PostgreSQL
supporting companies can provide XC support.


> 3. Is there any risk that project can be closed in the future?
>

If I interprete "any risk" exactly, no one can anser "no".   So far,
support for the project is nice and I find no reason to stop the project in
several years.


> 4. Are there any examples of production deployments?
>

Not yet.  Many people are trying XC to use in production.


> 5. Do you have any project references?
>

http://www.enterprisedb.com/services/postgres-xc
http://www.interdb.jp/techinfo/pgxc/ (Japanese)
http://virtualization.sys-con.com/node/2318433
http://www.ntt.co.jp/journal/1205/files/jn201205038.pdf  (Japanese)


> Regards,
>
> Adam Dec
>
>
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>
>

----------
Koichi Suzuki


---------- Forwarded message ----------
From: Koichi Suzuki <koi...@gm...>
Date: 2013/7/5
Subject: Postgres-XC 1.1 beta is out
To: pos...@li..., postgres-xc-general <
pos...@li...>, pgsql-announce <
pgs...@po...>


Postgres-XC 1.1 beta is now out.   Thank you very much for waiting long.

Source tarball is available at
https://sourceforge.net/projects/postgres-xc/files/Version_1.1/

Document hage is at http://postgres-xc.sourceforge.net/docs/1_1_beta/

Release note is at
http://postgres-xc.sourceforge.net/docs/1_1_beta/release-xc-1-1.html

Enjoy.
----------
Koichi Suzuki

Hi Adam,

On Tue, Jul 9, 2013 at 7:25 AM, Adam Dec <ada...@gm...> wrote:

> Hi!
>
> I am considering to use Postgres XC in my project, I have some basic
> questions:
>
> 1. What is the project vision (in long term)?
>

Koichi Suzuki can probably best answer this, but since Postgres-XC is open
source, you have the freedom to modify it. As part of our vision for our
version, we have added data node to data node communication for MPP
parallelism, high availability, and multi-tenant security.

We want to make improvements for more flexibility.

Also, we are seeing that adding support for distributed constraints may be
important to help adoption.


> 2. How quick/often is the dev support in case of any critical issues?
>

At StormDB, we offer support for both XC and our StormDB version. For some
it is worthwhile to be able to contact someone when there are XC issues. We
have customers running specially patched XC versions to address issues, and
we have contributed these patches back.

Just letting you know there are options. We have spoken to other PostgreSQL
consulting companies that are considering offering XC support as well,
possibly having StormDB help out for level 2/3 support.



>  3. Is there any risk that project can be closed in the future?
>

Here, too, NTT Data can better answer from their point of view.  Even if
NTT Data pulls out of further development, StormDB plans on continuing
development and support of XC and StormDB.


> 4. Are there any examples of production deployments?
> 5. Do you have any project references?
>
>
We are supporting users in production, not sure if they want to discuss
publicly.


Regards,

-- 
Mason Sharp

StormDB - http://www.stormdb.com
The Database Cloud
Postgres-XC Support and Services

Hi!

I am considering to use Postgres XC in my project, I have some basic
questions:

1. What is the project vision (in long term)?
2. How quick/often is the dev support in case of any critical issues?
3. Is there any risk that project can be closed in the future?
4. Are there any examples of production deployments?
5. Do you have any project references?

Regards,

Adam Dec

Postgres-XC 1.1 beta is now out.   Thank you very much for waiting long.

Source tarball is available at
https://sourceforge.net/projects/postgres-xc/files/Version_1.1/

Document hage is at http://postgres-xc.sourceforge.net/docs/1_1_beta/

Release note is at
http://postgres-xc.sourceforge.net/docs/1_1_beta/release-xc-1-1.html

Enjoy.
----------
Koichi Suzuki

Hi Afonso,
1.1 is not ready yet. The team is working on preparing for beta. We will
release beta next week.


On Thu, Jul 4, 2013 at 4:16 PM, Afonso Bione <aag...@gm...> wrote:

> HI,
> I need to install the new version to make same tests with Moodle
> please where can I find it?
>
> best regards]
> Afonso Bione
>
>
> ------------------------------------------------------------------------------
> This SF.net email is sponsored by Windows:
>
> Build for Windows Store.
>
> http://p.sf.net/sfu/windows-dev2dev
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
>
>


-- 
Best Wishes,
Ashutosh Bapat
EntepriseDB Corporation
The Postgres Database Company

HI,
I need to install the new version to make same tests with Moodle
please where can I find it?

best regards]
Afonso Bione

If it doesn't work, here's a backup you can try.

git://github.com/postgres-xc/postgres-xc.git

---
Koichi Suzuki



On 2013/06/25, at 10:45, Michael Paquier <mic...@gm...> wrote:

> On Tue, Jun 25, 2013 at 12:54 AM, Adam Dec <ada...@gm...> wrote:
>> Do I need any credential to clone Postgres XC from GIT repository.
>> I would like to test version 1.1.
> You need no credential when fetching in read mode the GIT repo on
> sourceforce. Use this URL to clone it:
> git://postgres-xc.git.sourceforge.net/gitroot/postgres-xc/postgres-xc
> --
> Michael
> 
> ------------------------------------------------------------------------------
> This SF.net email is sponsored by Windows:
> 
> Build for Windows Store.
> 
> http://p.sf.net/sfu/windows-dev2dev
> _______________________________________________
> Postgres-xc-general mailing list
> Pos...@li...
> https://lists.sourceforge.net/lists/listinfo/postgres-xc-general
> 

On Tue, Jun 25, 2013 at 12:54 AM, Adam Dec <ada...@gm...> wrote:
> Do I need any credential to clone Postgres XC from GIT repository.
> I would like to test version 1.1.
You need no credential when fetching in read mode the GIT repo on
sourceforce. Use this URL to clone it:
git://postgres-xc.git.sourceforge.net/gitroot/postgres-xc/postgres-xc
--
Michael

Hi al!!

Do I need any credential to clone Postgres XC from GIT repository.
I would like to test version 1.1.

Regards,

Adam Dec