admin@glassfish.java.net

Re: startup synchronization

From: Byron Nevins <byron.nevins_at_oracle.com>
Date: Tue, 18 May 2010 13:25:36 -0700

V2 should have a start script in the instance's bin directory


On 5/18/2010 1:16 PM, Comerford, Sean wrote:
> At least using 2.1 b60e, I don't know of any way to start an instance w/o
> the DAS running.
>
> Start-instance yields " Unable to connect to admin-server at given host:
> [vwtsas01] and port: [4848]. Please check if this server is up and running
> and that the host and port provided are correct. CLI137 Command
> start-instance failed."
>
> If there's an option to override, we'd love to know about it... or at least
> see it added in the future :-)
>
> On 5/18/10 2:22 PM, "Bill Shannon"<bill.shannon_at_oracle.com> wrote:
>
>
>> Comerford, Sean wrote on 05/18/10 05:49 AM:
>>
>>> You guys have probably heard this RFE before but Iıll reiterate it just
>>> in case itıs something that can be fixed easily / hasnıt been already in v3:
>>>
>>> There should be an option to start a clustered instance WITHOUT synching
>>> with the DAS at all (i.e. Start and just use the last known configuration).
>>>
>>> Currently, if your DAS goes down, you canıt (re)start any instances
>>> until itıs back up which could be very problematic in case of a
>>> catastrophic failure to the DAS.
>>>
>> The intent is that, if the DAS is down when the instance starts up,
>> the startup will continue with a warning. My understanding is that
>> that's what v2 does, is that not the case?
>>
>> We haven't quite got to that point with v3, however...
>>
>> And, if the DAS later comes up, and it is discovered that the instance
>> is out of sync with the DAS, the instance will need to be restarted.
>> We'll probably need a policy flag to control whether the instance
>> restarts automatically in this case or whether the administrator is
>> informed that the instance needs to be restarted.
>>
>>
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Byron Nevins  -  Oracle Corporation
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