Pankaj,
Thank you for the reply.
Using GSM APIs look to be a reasonable way to in order to handle this
problem. But I have a question:
1- how will load balancer understand that a new node is added to the
system?
Thanks.
pankaj jairath wrote:
>
> Hello Legolas,
>
> You can still achieve this concept within GlassFish v2, by using the
> Self Management feature.
> -
> https://glassfish.dev.java.net/javaee5/selfmanagement/selfmanagementhome.html
>
> Primarly what you can do is write your custom MBean which listens for
> GMS events (lets say failure) and causes another instance to added and
> started within the same cluster. For this you can use the AMX APIs to do
> this programmatically OR even set up mail alert rule that can send
> alerts to sys admin when it finds logs of certain type (in this case GMS
> failure of another peer node of the cluster). This way administrator can
> rely on the alert notification and take appropriate steps.
>
> - https://glassfish.dev.java.net/javaee5/amx/
> - https://glassfish.dev.java.net/javaee5/docs/DG/beapd.html
>
> On a different note, a more intensive solution is Open High Availability
> Clusters - Open HA Cluster.
> - http://opensolaris.org/os/community/ha-clusters
> - http://opensolaris.org/os/community/ha-clusters/ohac/Documentation/
>
> This provides HA solution using a combination of hardware and software
> entities. It provides for the notion of backup nodes as well.
>
> regards
> Pankaj
>
> legolas wrote:
>> Hi
>> Thank you for you reply.
>> Is there any way to have such feature?
>> Any hardware that can do that or any other kind of software which can do
>> this?
>>
>> Thanks
>>
>> Kshitiz Saxena wrote:
>>
>>> Hi Legolas,
>>>
>>> The load-balancer plugin available with glassfish does not provide any
>>> such feature of active/passive instances. All instances listed in
>>> load-balancer.xml are used for load-balancing purposes if they are
>>> healthy and enabled.
>>>
>>> Thanks,
>>> Kshitiz
>>>
>>> legolas wood wrote:
>>>
>>>> Hi
>>>> Thank you for reading my post
>>>> Is there any plan to add active/passive instances support in glassfish
>>>> load balancer plugin?
>>>> for example we could have 3 glassfish instance and load balancer
>>>> plugin utilize two of them at any time, it means that if one of those
>>>> two active instance goes down, lb plugin send the load to instance
>>>> number 3, and send some alarm notification about the failed server....
>>>>
>>>>
>>>> thanks
>>>>
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>>>
>>>
>>>
>>
>>
>
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