How to get Websphere to reconnect after a failover

tim malamphy

How to get Websphere to reconnect after a failover
Esteemed Listers...

I hope this is not too off-topic.

In our test environment,
we have a Websphere 4.5 server on NT, whose repository
is on a Solaris UDB 7.2 database, which is stored on a
SAN. We use Veritas on the Solaris box for failover.
So if one UDB 7.2 machine has problems, it switches
the workload over to another UDB 7.2 Solaris box
within the cluster, and Veritas gives it the same
virual IP address.
But Websphere doesn't see this happen, and typically
hangs. Manually reconnecting Websphere takes a bit of
time, and defeats the purpose of automated failover.
Could someone suggest a parameter/procedure or
document which describes how to tweak Websphere so
that it will automagically reconnect to the same
database, on the same virutal IP address after a
failover? Is some type of additional software required
on the NT side?

Thanks in advance,
Tim


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cliff boley

Re: How to get Websphere to reconnect after a failover
(in response to tim malamphy)
Tim,
We've had to resort to just bouncing WebSphere to reconnect.
We had some real head scratching with Websphere after IPLs not working.
Found out that AOC was starting Websphere before DB2 finished connecting to
DDF/TCP/IP.
My Websphere dude (aka, unfortunate sod), said it looks like Websphere v5 is
getting
rid of the DB2 component altogether.
So hang in there,
cliff:-)




-----Original Message-----
From: tim malamphy [mailto:[login to unmask email]
Sent: Monday, January 19, 2004 2:23 PM
To: [login to unmask email]
Subject: How to get Websphere to reconnect after a failover


Esteemed Listers...

I hope this is not too off-topic.

In our test environment,
we have a Websphere 4.5 server on NT, whose repository
is on a Solaris UDB 7.2 database, which is stored on a
SAN. We use Veritas on the Solaris box for failover.
So if one UDB 7.2 machine has problems, it switches
the workload over to another UDB 7.2 Solaris box
within the cluster, and Veritas gives it the same
virual IP address.
But Websphere doesn't see this happen, and typically
hangs. Manually reconnecting Websphere takes a bit of
time, and defeats the purpose of automated failover.
Could someone suggest a parameter/procedure or
document which describes how to tweak Websphere so
that it will automagically reconnect to the same
database, on the same virutal IP address after a
failover? Is some type of additional software required
on the NT side?

Thanks in advance,
Tim


__________________________________
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tim malamphy

Re: How to get Websphere to reconnect after a failover
(in response to cliff boley)
Hi Cliff-

It sounds like you've got WS on the mainframe with
DB2.
If so, couldn't your automated ops package key on
message
DSNL004I %DB2T DDF START COMPLETE 381
or
DSNL519I %DB2T DSNLIRSY TCP/IP SERVICES AVAILABLE

instead of having it in the start-up list after an
IPL?


tim




--- [login to unmask email] wrote:
> Tim,
> We've had to resort to just bouncing WebSphere to
> reconnect.
> We had some real head scratching with Websphere
> after IPLs not working.
> Found out that AOC was starting Websphere before DB2
> finished connecting to
> DDF/TCP/IP.
> My Websphere dude (aka, unfortunate sod), said it
> looks like Websphere v5 is
> getting
> rid of the DB2 component altogether.
> So hang in there,
> cliff:-)
>
>
>
>
> -----Original Message-----
> From: tim malamphy [mailto:[login to unmask email]
> Sent: Monday, January 19, 2004 2:23 PM
> To: [login to unmask email]
> Subject: How to get Websphere to reconnect after a
> failover
>
>
> Esteemed Listers...
>
> I hope this is not too off-topic.
>
> In our test environment,
> we have a Websphere 4.5 server on NT, whose
> repository
> is on a Solaris UDB 7.2 database, which is stored on
> a
> SAN. We use Veritas on the Solaris box for
> failover.
> So if one UDB 7.2 machine has problems, it switches
> the workload over to another UDB 7.2 Solaris box
> within the cluster, and Veritas gives it the same
> virual IP address.
> But Websphere doesn't see this happen, and typically
> hangs. Manually reconnecting Websphere takes a bit
> of
> time, and defeats the purpose of automated failover.
> Could someone suggest a parameter/procedure or
> document which describes how to tweak Websphere so
> that it will automagically reconnect to the same
> database, on the same virutal IP address after a
> failover? Is some type of additional software
> required
> on the NT side?
>
> Thanks in advance,
> Tim
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Hotjobs: Enter the "Signing Bonus"
> Sweepstakes
> http://hotjobs.sweepstakes.yahoo.com/signingbonus
>
>
----------------------------------------------------------------------------
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> that page select
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> http://www.idugdb2-l.org.
> The IDUG List Admins can be reached at
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>
>
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cliff boley

Re: How to get Websphere to reconnect after a failover
(in response to tim malamphy)
Tim,
that's what we did.
It just took a couple of iterations to get it figured out.
cliff:-)

-----Original Message-----
From: tim malamphy [mailto:[login to unmask email]
Sent: Tuesday, January 20, 2004 9:34 AM
To: [login to unmask email]
Subject: Re: How to get Websphere to reconnect after a failover


Hi Cliff-

It sounds like you've got WS on the mainframe with
DB2.
If so, couldn't your automated ops package key on
message
DSNL004I %DB2T DDF START COMPLETE 381
or
DSNL519I %DB2T DSNLIRSY TCP/IP SERVICES AVAILABLE

instead of having it in the start-up list after an
IPL?


tim




--- [login to unmask email] wrote:
> Tim,
> We've had to resort to just bouncing WebSphere to
> reconnect.
> We had some real head scratching with Websphere
> after IPLs not working.
> Found out that AOC was starting Websphere before DB2
> finished connecting to
> DDF/TCP/IP.
> My Websphere dude (aka, unfortunate sod), said it
> looks like Websphere v5 is
> getting
> rid of the DB2 component altogether.
> So hang in there,
> cliff:-)
>
>
>
>
> -----Original Message-----
> From: tim malamphy [mailto:[login to unmask email]
> Sent: Monday, January 19, 2004 2:23 PM
> To: [login to unmask email]
> Subject: How to get Websphere to reconnect after a
> failover
>
>
> Esteemed Listers...
>
> I hope this is not too off-topic.
>
> In our test environment,
> we have a Websphere 4.5 server on NT, whose
> repository
> is on a Solaris UDB 7.2 database, which is stored on
> a
> SAN. We use Veritas on the Solaris box for
> failover.
> So if one UDB 7.2 machine has problems, it switches
> the workload over to another UDB 7.2 Solaris box
> within the cluster, and Veritas gives it the same
> virual IP address.
> But Websphere doesn't see this happen, and typically
> hangs. Manually reconnecting Websphere takes a bit
> of
> time, and defeats the purpose of automated failover.
> Could someone suggest a parameter/procedure or
> document which describes how to tweak Websphere so
> that it will automagically reconnect to the same
> database, on the same virutal IP address after a
> failover? Is some type of additional software
> required
> on the NT side?
>
> Thanks in advance,
> Tim
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Hotjobs: Enter the "Signing Bonus"
> Sweepstakes
> http://hotjobs.sweepstakes.yahoo.com/signingbonus
>
>
----------------------------------------------------------------------------
> -----
> Welcome to the IDUG DB2-L list. To unsubscribe, go
> to the archives and home
> page at
> http://www.idugdb2-l.org/archives/db2-l.html. From
> that page select
> "Join or Leave the list". The IDUG DB2-L FAQ is at
> http://www.idugdb2-l.org.
> The IDUG List Admins can be reached at
> [login to unmask email] Find
> out the latest on IDUG conferences at
> http://conferences.idug.org/index.cfm
>
>
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> to the archives and home page at
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> List Admins can be reached at
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> on IDUG conferences at
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