There are lots of possible reasons for the increase in time. How many
nodes host the 10 instances? What does the application actually do?
How much time does it take to start one instance when it has the
application deployed?
I expect that the time to start one instance is probably about 65
seconds too.
Tom
On 9/23/2010 9:20 PM, Elena Asarina wrote:
> Hi Tom,
>
> I've deployed an app when instance were up. Then executed a simple
> script that did:
>
> asadmin stop-cluster <cluster_name>
> sleep 10
> asadmin start-cluster <cluster_name>
> sleep 10
>
> and so on 4 times. I've measured start/stop time for each
> start/stop command. Then took an average start time and stop time
> (really the time was stable). I did it before and after the
> deployment. And before the deployment the average start time was 15
> second, after the deployment - 65 seconds.
>
> Thank you,
>
> Elena
>
> Tom Mueller wrote:
>> To clarify what you did...you deployed the application to the cluster
>> while the instances were down, and then the time for start-cluster on
>> the first start of the cluster was 65 seconds? That would seem to be
>> reasonable, as this start-cluster requires synchronizing the
>> application to all of the instances. The actual sync time depends on
>> the network bandwidth you have and the speed of your DAS, but 65
>> seconds would seem reasonable for a 19MB application. I expect that
>> if you stop the cluster and restart it, the start time should go
>> down, probably not to the original 15 seconds, because the instances
>> need to load the application, but it should go down to something
>> below 65 seconds.
>>
>> Tom
>>
>>
>> On 9/23/2010 7:00 PM, Elena Asarina wrote:
>>> Hi,
>>>
>>> I've deployed to the 10-instances cluster one 19 Mb application.
>>> After that start cluster time changed from 15 seconds to 65 seconds.
>>> It it OK or not?
>>>
>>> Thank you,
>>>
>>> Elena
>>>
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