Regarding 'secstorage.session.max ' and Worker threads

[Ravi K <cl...@gmail.com>]

Hello All,

I wanted to know about Worker threads in SSVM and 'secstorage.session.max'

1. In SSVM, worker threads are responsible for handling the tasks performed
on SSVM.

2. 'secstorage.session.max' is the limit on max number of command execution
sessions that a SSVM can handle.

Does this mean that secstorage.session.max keeps limit on worker threads?

I wanted to how exactly they are related.

Thank you.

Regards,
Ravi

RE: Regarding 'secstorage.session.max ' and Worker threads

[Koushik Das <ko...@citrix.com>]

For "worker" related thread pool in SSVM agent check https://cwiki.apache.org/confluence/display/CLOUDSTACK/Agent+related+thread+pools
 

-----Original Message-----
From: Ravi K [mailto:cloud.fanatic07@gmail.com] 
Sent: Friday, 5 September 2014 11:38 AM
To: users@cloudstack.apache.org
Subject: Regarding 'secstorage.session.max ' and Worker threads

Hello All,

I wanted to know about Worker threads in SSVM and 'secstorage.session.max'

1. In SSVM, worker threads are responsible for handling the tasks performed on SSVM.

2. 'secstorage.session.max' is the limit on max number of command execution sessions that a SSVM can handle.

Does this mean that secstorage.session.max keeps limit on worker threads?

I wanted to how exactly they are related.

Thank you.

Regards,
Ravi

Re: Regarding 'secstorage.session.max ' and Worker threads

[Rohit Yadav <ro...@shapeblue.com>]

Hi Ravi,

On 05-Sep-2014, at 8:07 am, Ravi K <cl...@gmail.com> wrote:
>
> I wanted to know about Worker threads in SSVM and 'secstorage.session.max'
>
> 1. In SSVM, worker threads are responsible for handling the tasks performed
> on SSVM.

Yes. secstorage.capacity.standby is a config which is the minimal number of command execution sessions that system is able to serve immediately. secstorage.session.max is another config which is the max number of command execution sessions that a SSVM can handle.

>
> 2. 'secstorage.session.max' is the limit on max number of command execution
> sessions that a SSVM can handle.
>
> Does this mean that secstorage.session.max keeps limit on worker threads?

Yes, there is an algorithm that determines if we need more secondary storage systemvms to scale up, if we’re not able to satisfy required number of commands by these agents running in SSVM. One way to scale up is also to change the SSVM offering by creating a new offering and setting it on secstorage.service.offering.

You may read about the algorithm here: http://support.citrix.com/article/CTX137928
Hope this answers your question.

Regards,
Rohit Yadav
Software Architect, ShapeBlue
M. +41 779015219 | rohit.yadav@shapeblue.com
Blog: bhaisaab.org | Twitter: @_bhaisaab



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