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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-8616) Redundant VPC with both routers as Master
Date Thu, 16 Jul 2015 04:48:05 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-8616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14629171#comment-14629171
] 

ASF GitHub Bot commented on CLOUDSTACK-8616:
--------------------------------------------

Github user bhaisaab commented on a diff in the pull request:

    https://github.com/apache/cloudstack/pull/587#discussion_r34755507
  
    --- Diff: systemvm/patches/debian/config/opt/cloud/bin/cs/CsFile.py ---
    @@ -35,10 +35,9 @@ def load(self):
                     self.new_config.append(line)
             except IOError:
                 logging.debug("File %s does not exist" % self.filename)
    -            return
             else:
                 logging.debug("Reading file %s" % self.filename)
    -            self.config = copy.deepcopy(self.new_config)
    +            self.config = list(self.new_config)
    --- End diff --
    
    Alright, as I mentioned in my comment if the list contains (references to) other objects
then only copy.deepcopy should be used. I was not clear about the usage, after reading the
code I think it would work since we're working with list of strings (read from file), followed
by append/insert operations; list() would be indeed faster than copy.deepcopy in this case
as well.


> Redundant VPC with both routers as Master
> -----------------------------------------
>
>                 Key: CLOUDSTACK-8616
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8616
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Virtual Router
>    Affects Versions: 4.6.0
>            Reporter: Wilder Rodrigues
>            Assignee: Wilder Rodrigues
>
> There is an intermittent problem with the keepalived on the redundant VPC routers. Sometimes
both routers stay on Master state for a while.
> We are able to reproduce it only when testing with Marvin, which executes the calls very
quick. When using the UI and following the same steps, it doesn't happen.
> Setting up:
> 1. Create a VPC using redundant VPC offering
> 2. Add 2 Tiers
> 3. Create 2 VMs in each Tier
> 4. Create ACLs to allow traffic on port 22 coming from 0.0.0.0/0
> 5. Acquire 4 public IPs
> 6. Create Port Forwarding rules - per IP - for port 22
> 7. Assign each PF created to one of the VMs
> 8. SSH to the VMs
> Testing fail over:
> 1. Stop the Master Router
> 2. Check the the Backup Router became Master
> 3. SSH to the VMs 
> Testing failure:
> 1. Delete all port forwarding rules
> 2. SSH to the VMs 
> 3. Verify that it no longer works
> Test recovering
> 1. Restart the router
> 2. Once the router is running, check that it's on Backup state
> 3. Add the port forwarding rules back
> 4. Verify that the routers are still on the same state: 1 Master and 1 Backup
>     - That's the part when it fails during the Marvin tests
>     - When 2 routers are on Master, by restarting 1 router will bring everything to a
normal state: 1 master and 1 backup
> 5. SSH to the VMs 



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