Yeah, in my case I'm just setting up a basic zone with a XenServer host.

The code in NetUtils checks for null or "" on the variable in question
that's passed in. However, in a certain case, null for that variable can
slip by and lead to a NPE.

        if ((one == null || one.equals(""))

                &&

                (other == null || other.equals("")))

        {

            return true;

        }

if other == null, this will not catch it and it can throw a NPE later.


On Wed, Jan 1, 2014 at 9:51 PM, Marcus Sorensen <shadow...@gmail.com> wrote:

> You can do "git blame (file)" and it will show you each line and the
> commit. You can also do a git log on the file.  The issue may not be as
> obvious as that, though, there may be something totally unrelated causing
> that object to end up null in this code. Or it may be specific to your
> setup, some obscure bug nobody else is hitting.
> On Jan 1, 2014 4:22 PM, "Mike Tutkowski" <mike.tutkow...@solidfire.com>
> wrote:
>
> > This is in 4.3.
> >
> > I know the file is NetUtils, but I'm not sure in Git how to look at the
> > history of a particular file like I could do in SVN.
> >
> >
> > On Wed, Jan 1, 2014 at 3:55 PM, Marcus Sorensen <shadow...@gmail.com>
> > wrote:
> >
> > > Which branch? I see these in master, you can check out the commit just
> > > before these and see if it helps:
> > >
> > > commit b477e4e830597100f0c0171dd8e56f4033bd07aa
> > > Author: Daan Hoogland <dhoogl...@schubergphilis.com>
> > > Date:   Tue Dec 31 12:52:51 2013 +0100
> > >
> > >     some xtra cases
> > >
> > > commit 2cf356e047e26977c1d294fafc57e986c04fc5f4
> > > Author: Daan Hoogland <dhoogl...@schubergphilis.com>
> > > Date:   Tue Dec 31 12:25:17 2013 +0100
> > >
> > >     isSameIsolationId
> > >
> > > commit 04570eefed9a0ee1eca1fd700ed5732ba67150ce
> > > Author: Daan Hoogland <d...@onecht.net>
> > > Date:   Fri Dec 20 16:47:58 2013 +0100
> > >
> > >     check vlans and other isolation types
> > >
> > > commit d50517e931e68daef6735bd18273499fee0d4649
> > > Author: Sateesh Chodapuneedi <sate...@apache.org>
> > > Date:   Tue Dec 31 07:16:35 2013 +0530
> > >
> > > I also have a commit just after these, but it was pretty minor and
> > > only to KVM agent code.
> > >
> > > On Wed, Jan 1, 2014 at 3:27 PM, Mike Tutkowski
> > > <mike.tutkow...@solidfire.com> wrote:
> > > > Hey guys,
> > > >
> > > > The NPE I saw last night was related to "isolation id." Is it
> possible
> > > this
> > > > NPE is related to something new that was put that you are talking
> about
> > > > here?
> > > >
> > > > Thank!
> > > >
> > > > ERROR [c.c.a.ApiServer] (1583467451@qtp-185135566-2:ctx-ae5d80b2
> > > > ctx-5c12c4d9) unhandled exception executing api command:
> > > createVlanIpRange
> > > > java.lang.NullPointerException
> > > >     at
> > com.cloud.utils.net.NetUtils.isSameIsolationId(NetUtils.java:1419)
> > > >     at com.cloud.configuration.ConfigurationManagerImpl.
> > > > createVlanAndPublicIpRange(ConfigurationManagerImpl.java:2474)
> > > >     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> > > >     at sun.reflect.NativeMethodAccessorImpl.invoke(
> > > > NativeMethodAccessorImpl.java:57)
> > > >     at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> > > > DelegatingMethodAccessorImpl.java:43)
> > > >     at java.lang.reflect.Method.invoke(Method.java:616)
> > > >     at org.springframework.aop.support.AopUtils.
> > > > invokeJoinpointUsingReflection(AopUtils.java:317)
> > > >     at org.springframework.aop.framework.ReflectiveMethodInvocation.
> > > > invokeJoinpoint(ReflectiveMethodInvocation.java:183)
> > > >     at
> > > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
> > > > ReflectiveMethodInvocation.java:150)
> > > >     at com.cloud.event.ActionEventInterceptor.invoke(
> > > > ActionEventInterceptor.java:50)
> > > >     at
> > > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
> > > > ReflectiveMethodInvocation.java:161)
> > > >     at
> org.springframework.aop.interceptor.ExposeInvocationInterceptor.
> > > > invoke(ExposeInvocationInterceptor.java:91)
> > > >     at
> > > org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
> > > > ReflectiveMethodInvocation.java:172)
> > > >     at org.springframework.aop.framework.JdkDynamicAopProxy.
> > > > invoke(JdkDynamicAopProxy.java:204)
> > > >     at sun.proxy.$Proxy96.createVlanAndPublicIpRange(Unknown Source)
> > > >     at org.apache.cloudstack.api.command.admin.vlan.
> > > > CreateVlanIpRangeCmd.execute(CreateVlanIpRangeCmd.java:211)
> > > >     at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:161)
> > > >     at com.cloud.api.ApiServer.queueCommand(ApiServer.java:530)
> > > >     at com.cloud.api.ApiServer.handleRequest(ApiServer.java:373)
> > > >     at
> > > com.cloud.api.ApiServlet.processRequestInContext(ApiServlet.java:322)
> > > >     at com.cloud.api.ApiServlet.access$000(ApiServlet.java:52)
> > > >     at com.cloud.api.ApiServlet$1.run(ApiServlet.java:114)
> > > >     at org.apache.cloudstack.managed.context.impl.
> > > > DefaultManagedContext$1.call(DefaultManagedContext.java:56)
> > > >     at
> > org.apache.cloudstack.managed.context.impl.DefaultManagedContext.
> > > > callWithContext(DefaultManagedContext.java:103)
> > > >     at
> > org.apache.cloudstack.managed.context.impl.DefaultManagedContext.
> > > > runWithContext(DefaultManagedContext.java:53)
> > > >     at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:111)
> > > >
> > > >
> > > > On Wed, Jan 1, 2014 at 2:33 PM, Marcus Sorensen <shadow...@gmail.com
> >
> > > wrote:
> > > >
> > > >> That's just it. The isolation type *is* provided when creating
> > > >> physical network. If I create a physical network with isolation type
> > > >> 'VXLAN', and then add traffic type of 'Public', it doesn't obey it.
> > > >> There's physical_networks and networks, when the zone is created, an
> > > >> entry goes in network that is Public/Vlan, hardcoded. The Public
> > > >> traffic type uses this, regardless of what the physical_network its
> > > >> being added to says. So if we updated the the public network table
> row
> > > >> with the correct isolation method for that physical network we are
> > > >> adding traffic type to when we add the public traffic type, that
> would
> > > >> work. It's worth noting that a zone can only have one physical
> network
> > > >> with traffic type of public.
> > > >>
> > > >> On Wed, Jan 1, 2014 at 12:37 PM, Daan Hoogland <
> > daan.hoogl...@gmail.com
> > > >
> > > >> wrote:
> > > >> >> While I've got your attention, what's the deal with isolation
> > method
> > > vs
> > > >> broadcast method? These are always set to the same thing as far as
> > I've
> > > >> seen.
> > > >> >
> > > >> > I've been asking this but haven't found the answer yet. There is
> an
> > > >> > overlap but both have some extra values the other hasn't.
> > > >> >
> > > >> > I don't like either of your solutions but haven't got a good
> > > >> > alternative. Best would be to be able to set the isolation type on
> > > >> > each physical network on creation. The wizard and zone creation
> api
> > > >> > command would have to be extended and allow for vlan as default.
> > > >> >
> > > >> > regards,
> > > >> >
> > > >> > On Wed, Jan 1, 2014 at 8:53 AM, Marcus Sorensen <
> > shadow...@gmail.com>
> > > >> wrote:
> > > >> >> I suppose the answer might be to update the network with the
> proper
> > > >> >> isolation method when the traffic type is added. Look up the
> > physical
> > > >> >> network's isolation method, grab network object for the public
> > > network,
> > > >> and
> > > >> >> set the right isolation.
> > > >> >> On Jan 1, 2014 12:46 AM, "Marcus Sorensen" <shadow...@gmail.com>
> > > wrote:
> > > >> >>
> > > >> >>>   I ran into an issue today that I'm still trying to wrap my
> head
> > > >> >>> around, and I wanted to bounce this off of you guys. I have a
> > > physical
> > > >> >>> network whose isolation method is set to 'VXLAN' (v4.3+). I add
> my
> > > >> >>> Public traffic type to it. I'd assume that nics generated for
> > public
> > > >> >>> traffic would have the standard vxlan://  URI for  isolation URI
> > and
> > > >> >>> broadcast URI, but they just have a vlan://. Digging into it, it
> > > seems
> > > >> >>> that public traffic is hard-coded to BroadcastDomainType.Vlan. I
> > > fixed
> > > >> >>> this fairly easily for my testing, there were only a few places
> to
> > > >> >>> fix, by pulling the BroadcastDomainType from the network object
> > > rather
> > > >> >>> than hardcoding it, but that found another problem. This only
> > works
> > > if
> > > >> >>> I change the broadcast type in the 'networks' mysql table by
> hand,
> > > as
> > > >> >>> during zone deployment the public network creation is also
> > > hard-coded
> > > >> >>> to vlan.
> > > >> >>>
> > > >> >>>   I'm not sure how to go about fixing this, since the Public,
> > > Control,
> > > >> >>> Management networks are created upon zone deployment, (see
> > > >> >>> createDefaultSystemNetworks). The immediate thing that jumped
> out
> > > was
> > > >> >>> a config variable for public isolation method, set prior to zone
> > > >> >>> deployment, or perhaps even one that overrides what's in the
> > table.
> > > >> >>>
> > > >> >>>   While I've got your attention, what's the deal with isolation
> > > method
> > > >> >>> vs broadcast method? These are always set to the same thing as
> far
> > > as
> > > >> >>> I've seen.
> > > >> >>>
> > > >>
> > > >
> > > >
> > > >
> > > > --
> > > > *Mike Tutkowski*
> > > > *Senior CloudStack Developer, SolidFire Inc.*
> > > > e: mike.tutkow...@solidfire.com
> > > > o: 303.746.7302
> > > > Advancing the way the world uses the
> > > > cloud<http://solidfire.com/solution/overview/?video=play>
> > > > *™*
> > >
> >
> >
> >
> > --
> > *Mike Tutkowski*
> > *Senior CloudStack Developer, SolidFire Inc.*
> > e: mike.tutkow...@solidfire.com
> > o: 303.746.7302
> > Advancing the way the world uses the
> > cloud<http://solidfire.com/solution/overview/?video=play>
> > *™*
> >
>



-- 
*Mike Tutkowski*
*Senior CloudStack Developer, SolidFire Inc.*
e: mike.tutkow...@solidfire.com
o: 303.746.7302
Advancing the way the world uses the
cloud<http://solidfire.com/solution/overview/?video=play>
*™*

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