[OPNFLWPLUG-662] Longevity test using OVS 2.3.2 + 120 switches using He Plugin Created: 28/Mar/16  Updated: 27/Sep/21  Resolved: 29/Jul/16

Status: Resolved
Project: OpenFlowPlugin
Component/s: General
Affects Version/s: None
Fix Version/s: None

Type: Bug
Reporter: Saibal Roy Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified
Environment:

Operating System: All
Platform: All

Attachments: Zip Archive 120sw_OVS2.3_connect_disconnect.zip    
External issue ID: 5608
Priority: High

 Description   

Hi,

I was testing the Longevity test using OVS 2.3.2 and connecting 120 switches across the cluster(40 per controller) using latest Be Code with He Plugin.

I could see that 118 switches are connected and 2 switches are disconnected if I run it for overnight(8 hours).

Build used :
===================
Karaf distro from latest ODL Beryllium master code

Objective of test :
===================
To stress the Longevity of switches connected.

Test Steps :
============
1. Bring up healthy 3 node cluster.
2. Connect 120 switches across the cluster ( 40 per controller node) using mininet having OVS 2.3.2.

I leave this machine overnight idle for 8 hours.

Observations
============

Next morning, i could see that 118 switches are connected to the controller.2 switches are missing.

Attaching the logs for more clarity.

Thanks & Regards,
Saibal Roy.

 Comments   
Comment by Saibal Roy [ 28/Mar/16 ]

Attachment 120sw_OVS2.3_connect_disconnect.zip has been added with description: Logs for longevity test for 120switches.

Comment by Muthukumaran Kothandaraman [ 28/Mar/16 ]

Hi Saibal,

Please specify following

1. the test is with ODL Beryllium Stable branch right ?
2. configuration and topology used (how mininet and controller VMs were distributed across hw boxes - if that could help)
3. whether the disconnect happened on a specific controller (c1, c2, c3) so that examining logs and correlating would be relatively easier

Comment by Saibal Roy [ 28/Mar/16 ]

Hi Muthu,

Below are the updates.

1.Yes we are using ODL stable Beryllium.Sorry for typo.

2.Configuration and topology:

i.Controllers (c1, c2 and c3) VMs are running in Dell machine say h1, each VM has 8 vcpu and 16g RAM configuration

ii. Mininet (m1, m2 and m3) VMs with ovs version 2.3.2 are running in different Dell machine say h2, each VM has 8 vcpu and 16g RAM configuration.

m1 with 40 switches (1 to 41) connected to c1
m2 with 40 switches (41 - 81) connected to c2
m3 with 40 switches (81 - 121) connected to c3

3.Disconnection is happening in different controller.39 switches connected to c1,40 to c2 and 39 to c3.So total 118 out of 120 switches are connected.

Thanks & Regards,
Saibal Roy.

Comment by Muthukumaran Kothandaraman [ 29/Jul/16 ]

Not seen after the table-features is switched-off in Helium plugin

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