IDS Forum

RE: Re: Listener thread not starting

Posted By: Marcus Haarmann
Date: Thursday, 21 July 2011, at 4:44 a.m.

In Response To: Re: Listener thread not starting (Martin Fuerderer)

Hi Martin,

I was just asking, because 11.10FC3 does NOT start up the DB in this
case, but 11.70 does.
I assume, this is related to a change in 11.5 which allows dynamic
start/stop of listeners.
In case there is no way to prevent startup when the listener port cannot
be bound, we have to think
about an external solution, that is true.

Best regards,

Marcus

-----Original Message-----
From: Martin Fuerderer [mailto:MARTINFU@de.ibm.com]
Sent: Thursday, July 21, 2011 10:35 AM
To: ids@iiug.org
Subject: Re: Listener thread not starting [24419]

Hi,

as far as I know you will not be able to accomplish your goal using only
Informix software (packaged within the Informix Bundle). At least if you
are serious about it, you will need something like Linux-HA (sometimes
also called "Heartbeat", though I think meanwhile this is only a subset
of Linux-HA).

Start by looking at http://www.linux-ha.org/

There's a lot of information provided ... it should give you some ideas
(fancy terms are "split brain", "STONITH", etc.).

And there even is a "Resource Agent" for Informix available for
"Heartbeat" ...:
http://www.linux-ha.org/wiki/Resource_Agents
http://linux-ha.org/doc/man-pages/re-ra-ids.html

Regards, Martin
--
Martin Fuerderer
IBM Informix Development Munich, Germany Information Management

Read about the Informix Warehouse Accelerator:
http://tinyurl.com/the-iwa-blog

IBM Deutschland Research & Development GmbH Chairman of the Supervisory
Board: Martin Jetter Board of Management: Dirk Wittkopp Corporate Seat:
Boeblingen, Germany
Reg.-Gericht: Amtsgericht Stuttgart, HRB 243294

ids-bounces@iiug.org wrote on 07/21/2011 10:07:05 AM:
>
> Hi experts,
>
> we are in the process of migrating some IDS 11.10FC3 / Linux Instances

> to 11.70 FC3.
> We are using shared disks via Fibre Channel SAN and cold standby
> instances in some places, which are configured to start the DB on the
> same partitions.
> Until now, we could make sure the second instance is not started on
> the same disk partitions by naming a DBSERVERALIAS, which cannot bind
> locally.
> In this case, an accidentally executed oninit would NOT start up the
> DB Instance, but terminate when the IP binding phase is unsuccessful.
> Now in 11.70, we only get a message that the listener thread cannot
> bind

> to the address
> but the DB continues starting.
>
> Is there a way to prevent this ? There can be ugly effects if two
> instances, which are not connected using SDS operate on the same hard
> disk partitions ...
>
> Thanks for any reply,
>
> Marcus Haarmann
>
>
>

************************************************************************
*******

> Forum Note: Use "Reply" to post a response in the discussion forum.
>

************************************************************************
*******
Forum Note: Use "Reply" to post a response in the discussion forum.

Messages In This Thread

• Listener thread not starting
  Marcus Haarmann -- Thursday, 21 July 2011, at 4:07 a.m.
  • Re: Listener thread not starting
    Martin Fuerderer -- Thursday, 21 July 2011, at 4:34 a.m.
    • RE: Re: Listener thread not starting
      Marcus Haarmann -- Thursday, 21 July 2011, at 4:44 a.m.

IDS Forum is maintained by Administrator with WebBBS 5.12.