Hi Reka, Pubudu
I tested a scenario where I update group groupMinInstances/groupMaxInstances
(which according the email thread should ?!).
However, what I observed is that after updating
groupMinInstances/groupMaxInstances (from 1 to 2) no new group is created.
Here are the application definitions and log is attached
(scenario starts with: TID: [0] [STRATOS] [2015-07-22 18:53:37,099] INFO
{org.apache.stratos.autoscaler.services.impl.AutoscalerServiceImpl} - Adding
application: [application-id] sub-app-update-4)
Application deployed (groupMin/Max = 1):
2015-07-22 11:53:37,217 libmultiiaas.octl DEBUG: Stratos format Application:
{"alias": "sub-app-update-4", "applicationId": "sub-app-update-4",
"components": {"cartridges": [], "groups": [{"name": "sub-app-update-4",
"groupMaxInstances": 1, "groupMinInstances": 1, "alias":
"sub-app-update-4-x0x", "cartridges": [{"cartridgeMin": 1, "cartridgeMax": 1,
"type": "c1", "subscribableInfo": {"alias": "c1-0x0", "deploymentPolicy":
"static-3", "autoscalingPolicy": "economyPolicy"}}], "groups": [{"name":
"application-update-4-2", "groupMaxInstances": 1, "groupMinInstances": 1,
"alias": "application-update-4-2-0x0", "cartridges": [{"cartridgeMin": 1,
"cartridgeMax": 1, "type": "c2", "subscribableInfo": {"alias": "c2-1x0",
"deploymentPolicy": "static-2", "autoscalingPolicy": "economyPolicy"}}],
"groups": []}]}]}}
2015-07-22 11:53:37,540 libmultiiaas.octl INFO: Application added successfully:
[application] sub-app-update-4
2015-07-22 11:53:37,770 libmultiiaas.octl DEBUG: Application deployed
successfully: [application] sub-app-update-4
2015-07-22 11:53:37,825 libmultiiaas.octl INFO: Deploying Application
sub-app-update-4 state Deployed after 0 s
2015-07-22 11:53:39,826 libmultiiaas.octl DEBUG: Application deployed
successfully: [application] sub-app-update-4
2015-07-22 11:53:39,826 root INFO: Application deployed successfully:
[application] sub-app-update-4
Updated application (groupMin/Max = 2):
{"alias": "sub-app-update-4", "applicationId": "sub-app-update-4",
"components": {"cartridges": [], "groups": [{"name": "sub-app-update-4",
"groupMaxInstances": 1, "groupMinInstances": 1, "alias":
"sub-app-update-4-x0x", "cartridges": [{"cartridgeMin": 1, "cartridgeMax": 1,
"type": "c1", "subscribableInfo": {"alias": "c1-0x0", "deploymentPolicy":
"static-3", "autoscalingPolicy": "economyPolicy"}}], "groups": [{"name":
"application-update-4-2", "groupMaxInstances": 2, "groupMinInstances": 2,
"alias": "application-update-4-2-0x0", "cartridges": [{"cartridgeMin": 1,
"cartridgeMax": 1, "type": "c2", "subscribableInfo": {"alias": "c2-1x0",
"deploymentPolicy": "static-2", "autoscalingPolicy": "economyPolicy"}}],
"groups": []}]}]}}
2015-07-22 12:03:14,356 libmultiiaas.octl INFO: Application updated
successfully: [application] sub-app-update-4
2015-07-22 12:03:14,356 root INFO: {u'status': u'success', u'message':
u'Application updated successfully: [application] sub-app-update-4'}
Application after update:
[cid:image002.png@01D0C47E.8BB235E0]
This is what I would have expected after the application update:
[cid:image003.png@01D0C47E.8BB235E0]
Please let me know if there is an issue or updating runtime
groupMinInstances/groupMaxInstances is currently not supported,
Thanks
Martin
From: Reka Thirunavukkarasu [mailto:r...@wso2.com]
Sent: Tuesday, July 21, 2015 11:25 PM
To: dev
Subject: Re: 4.1 Stratos testig: clarifying application update API
Hi Martin,
As Pubudu explained, those are the expected steps and the result of the
application update. Application Runtime can only be updated with
cartridgeMin/cartridgeMax and/or with groupMinInstances/groupMaxInstances. Even
if you update other parameters, it will get ignored by the back end.
Please note that you can update application only when it is in deployed mode.
After application is created, if you need to update, then you will have to
delete the application and create it again. Currently application update is not
available when the application is in created mode.
Thanks,
Reka
On Wed, Jul 22, 2015 at 11:29 AM, Pubudu Gunatilaka
<pubu...@wso2.com<mailto:pubu...@wso2.com>> wrote:
Hi Martin,
You can update only carridgeMin and cartridgeMax at runtime in application
update. Even you can update the deployment policy which uses the application.
But you cannot change the deployment policy in application at runtime.
In your case, as you have used two different deployment policies, it won't
work. It will use the previous deployment policy. I have tested following
scenario.
1. Use the deployment policy with partition max as 1.
2. Deploy the application with cartridgeMin 1.
3. Update the same deployment policy with partition max 2.
4. Update application at runtime to cartridgeMin 2.
4. Another instance spawned successfully.
Thank you!
On Wed, Jul 22, 2015 at 9:25 AM, Martin Eppel (meppel)
<mep...@cisco.com<mailto:mep...@cisco.com>> wrote:
Hi,
I am currently testing the API to update an application (most notably to update
the cartridge cartridgeMin / cartridgeMax in a cartridge deployment policy).
My main question is which are the parameters which are currently supported to
be updated as part of application update.
I have tested updating (increasing the value) of cartridge cartridgeMin /
cartridgeMax of a cartridge policy which works fine, as long as the cartridge
deployment policy is correspondingly configured:
e.g. updating min/max from 1/1 to 2/2 and (using the deployment policy
“static-2”) with a partitionMax set to 2.
However, updating the deployment policy either not supported or fails to work.
For example, if I start initially with cartridgeMin / cartridgeMax = 1 and a
deployment policy “static-1” (with a partitionMax set to 1) and then update
the cartridge policy cartridgeMin / cartridgeMax = 2 and the deployment policy
“static-2” ( with a partitionMax set to 2) the cartridge instances are not
properly spun up to 2.
I am not sure if updating the deployment policy (or any other parameters beyond
min / max in the cartridge policy, e.g min / max in group policy etc …) is
currently supported or not, which brings me back to my initial question which
parameters are supported as part of application “update”, please clarify.
Also, is the case supported when decreasing the values, e.g. updating the
cartridgeMin / cartridgeMax = 2 to 1 ?
Just in case I attached the policy files and log to the email, application,
cartridge group json see below inline
Thanks
Martin
Before application update:
Application json:
{"alias": "sub-app-update-1", "applicationId": "sub-app-update-1",
"components": {"cartridges": [], "groups": [{"name": "sub-app-update-1",
"groupMaxInstances": 1, "groupMinInstances": 1, "alias":
"sub-app-update-1-x0x", "cartridges": [{"cartridgeMin": 1, "cartridgeMax": 1,
"type": "c1", "subscribableInfo": {"alias": "c1-0x0", "deploymentPolicy":
"static-1", "autoscalingPolicy": "economyPolicy"}}], "groups": []}]}}
Cartridge-group.json:
{"name": "sub-app-update-1", "dependencies": {"terminationBehaviour":
"terminate-none", "startupOrders": []}, "cartridges": ["c1"], "groups": []}
application update json:
{"alias": "sub-app-update-1", "applicationId": "sub-app-update-1",
"components": {"cartridges": [], "groups": [{"name": "sub-app-update-1",
"groupMaxInstances": 1, "groupMinInstances": 1, "alias":
"sub-app-update-1-x0x", "cartridges": [{"cartridgeMin": 2, "cartridgeMax": 2,
"type": "c1", "subscribableInfo": {"alias": "c1-0x0", "deploymentPolicy":
"static-2", "autoscalingPolicy": "economyPolicy"}}], "groups": []}]}}
Deployment policies (attached):
static-1.json, static-2.json
Application (before / after update):
[cid:image004.png@01D0C47E.8BB235E0]
--
Pubudu Gunatilaka
Software Engineer
WSO2, Inc.: http://wso2.com<http://wso2.com/>
lean.enterprise.middleware
mobile: +94 77 4078049
--
Reka Thirunavukkarasu
Senior Software Engineer,
WSO2, Inc.:http://wso2.com,
Mobile: +94776442007
