Re: Automatic operation at application statup - once for each instance
Re: Automatic operation at application statup - once for each instance
- Subject: Re: Automatic operation at application statup - once for each instance
- From: Eugene Khablov <email@hidden>
- Date: Tue, 04 Jul 2006 11:12:28 +0400
- Thread-topic: Automatic operation at application statup - once for each instance
If I'm not mistaken the maintenance operation could be hit more then once
when called from a DirectAction if timeouts have happened during generating
response for DA. And so at the least the maintenance operation should be
started in separate thread in DA to avoid timeouts.
Eugene Khablov
On 3/22/06 6:43 PM, "Pierre Bernard" <email@hidden> wrote:
> Integrate your maintenance operations in a direct action.
> Call that from a crontab script using curl.
> Let the load balancer decide which instance to hit.
>
> Pierre
>
>
> On Mar 22, 2006, at 3:36 PM, Doug Andrews wrote:
>
>> You could add an argument into JavaMonitor for one instance but not
>> the others.
>> (-mainInstance TRUE)
>> Retrieve this property within your code with System.getProperty
>> ("mainInstance")
>>
>>
>>
>>
>> On Mar 22, 2006, at 8:32 AM, François Reboursier wrote:
>>
>>> Hi list,
>>>
>>> I perform some maintenance operations at application startup by
>>> catching the WOApplication.ApplicationDidFinishLaunchingNotification
>>> It works fine in testing, but in deployment mode the maintenance
>>> code is called many times (once for each instance): this is
>>> perfectly logical.
>>>
>>> Is there a way to get the current instance number (to only
>>> perform the maintenance in instance #1 ) ?
>>> is there an other way to call this method one time, and one time
>>> only ?
>>>
>>> Thanks for your ideas!
>>>
>>> Regards,
>>> François _______________________________________________
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---
Eugene Khablov
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