[one-users] [one-user] AppFlow 4.2 Scalling Function

[Carlos Martín Sánchez]

Hi,

What is happening is that the wizard is creating a template with these
values:
# Periods = 60
Period = 3

This is a bug [1] that we solved after the final release, but somehow we
forgot to include it in the known issues page. I'll add a warning in the
documentation with the workaround:

$ sudo wget
http://dev.opennebula.org/projects/opennebula/repository/revisions/5c7b370f6be5f4f9167d508bdd31b580f05dafd4/raw/src/sunstone/public/js/plugins/oneflow-templates.js-O
/usr/lib/one/sunstone/public/js/plugins/oneflow-templates.js

$ sudo wget
http://dev.opennebula.org/projects/opennebula/repository/revisions/970c34464a1d5a71f3a9dfdd3d77d62883400857/raw/src/sunstone/public/js/plugins/oneflow-services.js-O
/usr/lib/one/sunstone/public/js/plugins/oneflow-services.js



Best regards

[1] http://dev.opennebula.org/issues/2249
--
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September, 2013
--
Carlos Martín, MSc
Project Engineer
OpenNebula - The Open-source Solution for Data Center Virtualization
www.OpenNebula.org | cmartin at opennebula.org |
@OpenNebula<http://twitter.com/opennebula><cmartin at opennebula.org>


On Wed, Sep 4, 2013 at 10:52 AM, Naza <naza1715 at gmail.com> wrote:

> In the opennebula sunstone oneflow service elasticity policies, it says
> that
>
> # Periods = Number of periods that the expression must be true before the
> elasticity is triggered
>
> Period = Duration, in seconds, of each period in '# Periods'
>
> My configuration as follow (refer to the attachment)
>
> # Periods = 3
> Period = 60
>
> I instantiate this template.
>
> When I run 'oneflow show' command it shows:
>
> nebula at z2-hn01:~$ oneflow show 4
> SERVICE 4
> INFORMATION
> ID                  : 4
> NAME                : test-oneflow-service
> USER                : nebula
> GROUP               : oneadmin
> STRATEGY            : straight
> SERVICE STATE       : RUNNING
> SHUTDOWN            : shutdown
>
> PERMISSIONS
>
> OWNER               : um-
> GROUP               : ---
> OTHER               : ---
>
> ROLE frontend
> ROLE STATE          : RUNNING
> VM TEMPLATE         : 3
> CARNIDALITY         : 1
> MIN VMS             : 1
> MAX VMS             : 1
> COOLDOWN            : 15s
> SHUTDOWN            : shutdown
> NODES INFORMATION
>  VM_ID NAME                    STAT UCPU    UMEM
> HOST                       TIME
>     21 frontend_0_(service_4)  runn    0      8G z2-nc06                0d
> 01h01
>
> ROLE db_master
> ROLE STATE          : RUNNING
> PARENTS             : frontend
> VM TEMPLATE         : 4
> CARNIDALITY         : 2
> MIN VMS             : 1
> MAX VMS             : 3
> COOLDOWN            : 15s
> SHUTDOWN            : shutdown
> NODES INFORMATION
>  VM_ID NAME                    STAT UCPU    UMEM
> HOST                       TIME
>     22 db_master_0_(service_4) runn    0      8G z2-nc05                0d
> 00h59
>     23 db_master_1_(service_4) runn    0      8G z2-nc04                0d
> 00h22
>
> ELASTICITY RULES
>
> ADJUST       EXPRESSION                                       EVALS
> PERIOD  COOL
> + 1          MEM_USED_PERC[2.8] > 1.5                         37 /
> 3s   60s
> + 1          DISK_USED_PERC_SDA2[--] > 50                     0 / 6
> 3s   60s
>
>
> LOG
> MESSAGES
> 09/04/13 15:26 [I] New state: DEPLOYING
> 09/04/13 15:31 [I] New state: RUNNING
> 09/04/13 16:05 [I] Role db_master scaling up from 1 to 2 nodes
> 09/04/13 16:05 [I] New state: SCALING
> 09/04/13 16:07 [I] New state: COOLDOWN
> 09/04/13 16:08 [I] New state: RUNNING
>
> Questions:
> 1) EVALS value is truncated when it has to digit number (37)
> 2) I set 'Period = 60' but it shows 3s
> 3) I set '# Periods = 3' but it shows 6
> 4) Refer to the LOG, it took about half an hour to scale up. I am not sure
> why it is not after (# Periods * Period) which is about 3 minutes (3 *
> 60s).
>
> Please correct me if I misunderstand the oneflow settings.
>
> Regards,
> Naza
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
>
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