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Posted to dev@cloudstack.apache.org by Marcus Sorensen <sh...@gmail.com> on 2012/10/31 01:36:31 UTC
Router command slowness
Occasionally in the agent logs I see:
sudo: unable to resolve host r-410-VM
When virtual router commands are run. I decided to dig into it today,
and added "127.0.0.1 r-410-VM" to the /etc/hosts file on the router.
WOW, what a difference, most of the router commands are far faster
now. Adding IPs for example is pretty much instant, rather than 15-20
seconds. I'll push a change to /etc/init.d/cloud-early-config if
nobody objects.
Re: Router command slowness
Posted by Marcus Sorensen <sh...@gmail.com>.
Yes, it IS specific to VPC, and is fixed. It makes sense that someone
would have left it out due to the VPC router having several IPs,
unfortunately iptables wants to resolve our hostname. The fix is in
master.
On Wed, Oct 31, 2012 at 7:58 AM, Marcus Sorensen <sh...@gmail.com> wrote:
> It may be specific to VPC routers. I did some testing and it didn't seem to
> cause any issues, although I'll revisit in the normal single network case.
> In any case an entry should only be added if none exists.
>
> On Oct 31, 2012 2:38 AM, "Jayapal Reddy Uradi"
> <ja...@citrix.com> wrote:
>>
>> In my setup router /etc/hosts contain the following entry.
>> 10.1.1.1 r-51-TEST
>> From the VM if I ping to r-51-TEST it is resolved to 10.1.1.1
>>
>> Is your router has the above entry ?
>>
>> Thanks,
>> Jayapal
>>
>> > -----Original Message-----
>> > From: Rohit Yadav [mailto:rohit.yadav@citrix.com]
>> > Sent: Wednesday, October 31, 2012 1:39 PM
>> > To: cloudstack-dev@incubator.apache.org
>> > Subject: Re: Router command slowness
>> >
>> >
>> > On 31-Oct-2012, at 6:06 AM, Marcus Sorensen <sh...@gmail.com>
>> > wrote:
>> >
>> > > Occasionally in the agent logs I see:
>> > >
>> > > sudo: unable to resolve host r-410-VM
>> > >
>> > > When virtual router commands are run. I decided to dig into it today,
>> > > and added "127.0.0.1 r-410-VM" to the /etc/hosts file on the router.
>> > > WOW, what a difference, most of the router commands are far faster
>> > > now. Adding IPs for example is pretty much instant, rather than 15-20
>> > > seconds. I'll push a change to /etc/init.d/cloud-early-config if
>> > > nobody objects.
>> >
>> > Awesome. Before committing please check if there can be any service
>> > which
>> > may fail because of this?
>> > I don't know of any, ship it!
>> >
>> > Regards.
RE: Router command slowness
Posted by Marcus Sorensen <sh...@gmail.com>.
It may be specific to VPC routers. I did some testing and it didn't seem to
cause any issues, although I'll revisit in the normal single network case.
In any case an entry should only be added if none exists.
On Oct 31, 2012 2:38 AM, "Jayapal Reddy Uradi" <
jayapalreddy.uradi@citrix.com> wrote:
> In my setup router /etc/hosts contain the following entry.
> 10.1.1.1 r-51-TEST
> From the VM if I ping to r-51-TEST it is resolved to 10.1.1.1
>
> Is your router has the above entry ?
>
> Thanks,
> Jayapal
>
> > -----Original Message-----
> > From: Rohit Yadav [mailto:rohit.yadav@citrix.com]
> > Sent: Wednesday, October 31, 2012 1:39 PM
> > To: cloudstack-dev@incubator.apache.org
> > Subject: Re: Router command slowness
> >
> >
> > On 31-Oct-2012, at 6:06 AM, Marcus Sorensen <sh...@gmail.com>
> > wrote:
> >
> > > Occasionally in the agent logs I see:
> > >
> > > sudo: unable to resolve host r-410-VM
> > >
> > > When virtual router commands are run. I decided to dig into it today,
> > > and added "127.0.0.1 r-410-VM" to the /etc/hosts file on the router.
> > > WOW, what a difference, most of the router commands are far faster
> > > now. Adding IPs for example is pretty much instant, rather than 15-20
> > > seconds. I'll push a change to /etc/init.d/cloud-early-config if
> > > nobody objects.
> >
> > Awesome. Before committing please check if there can be any service which
> > may fail because of this?
> > I don't know of any, ship it!
> >
> > Regards.
>
RE: Router command slowness
Posted by Jayapal Reddy Uradi <ja...@citrix.com>.
In my setup router /etc/hosts contain the following entry.
10.1.1.1 r-51-TEST
>From the VM if I ping to r-51-TEST it is resolved to 10.1.1.1
Is your router has the above entry ?
Thanks,
Jayapal
> -----Original Message-----
> From: Rohit Yadav [mailto:rohit.yadav@citrix.com]
> Sent: Wednesday, October 31, 2012 1:39 PM
> To: cloudstack-dev@incubator.apache.org
> Subject: Re: Router command slowness
>
>
> On 31-Oct-2012, at 6:06 AM, Marcus Sorensen <sh...@gmail.com>
> wrote:
>
> > Occasionally in the agent logs I see:
> >
> > sudo: unable to resolve host r-410-VM
> >
> > When virtual router commands are run. I decided to dig into it today,
> > and added "127.0.0.1 r-410-VM" to the /etc/hosts file on the router.
> > WOW, what a difference, most of the router commands are far faster
> > now. Adding IPs for example is pretty much instant, rather than 15-20
> > seconds. I'll push a change to /etc/init.d/cloud-early-config if
> > nobody objects.
>
> Awesome. Before committing please check if there can be any service which
> may fail because of this?
> I don't know of any, ship it!
>
> Regards.
Re: Router command slowness
Posted by Rohit Yadav <ro...@citrix.com>.
On 31-Oct-2012, at 6:06 AM, Marcus Sorensen <sh...@gmail.com> wrote:
> Occasionally in the agent logs I see:
>
> sudo: unable to resolve host r-410-VM
>
> When virtual router commands are run. I decided to dig into it today,
> and added "127.0.0.1 r-410-VM" to the /etc/hosts file on the router.
> WOW, what a difference, most of the router commands are far faster
> now. Adding IPs for example is pretty much instant, rather than 15-20
> seconds. I'll push a change to /etc/init.d/cloud-early-config if
> nobody objects.
Awesome. Before committing please check if there can be any service which may fail because of this?
I don't know of any, ship it!
Regards.
Re: Router command slowness
Posted by Marcus Sorensen <sh...@gmail.com>.
Virtual router deploys/reboots in 1/3 the time! Woo hoooooo!
On Oct 30, 2012 7:11 PM, "Ahmad Emneina" <Ah...@citrix.com> wrote:
> +1 this sounds immense and promising.
>
> Ahmad
>
> On Oct 30, 2012, at 5:37 PM, "Marcus Sorensen" <sh...@gmail.com>
> wrote:
>
> > Occasionally in the agent logs I see:
> >
> > sudo: unable to resolve host r-410-VM
> >
> > When virtual router commands are run. I decided to dig into it today,
> > and added "127.0.0.1 r-410-VM" to the /etc/hosts file on the router.
> > WOW, what a difference, most of the router commands are far faster
> > now. Adding IPs for example is pretty much instant, rather than 15-20
> > seconds. I'll push a change to /etc/init.d/cloud-early-config if
> > nobody objects.
>
Re: Router command slowness
Posted by Ahmad Emneina <Ah...@citrix.com>.
+1 this sounds immense and promising.
Ahmad
On Oct 30, 2012, at 5:37 PM, "Marcus Sorensen" <sh...@gmail.com> wrote:
> Occasionally in the agent logs I see:
>
> sudo: unable to resolve host r-410-VM
>
> When virtual router commands are run. I decided to dig into it today,
> and added "127.0.0.1 r-410-VM" to the /etc/hosts file on the router.
> WOW, what a difference, most of the router commands are far faster
> now. Adding IPs for example is pretty much instant, rather than 15-20
> seconds. I'll push a change to /etc/init.d/cloud-early-config if
> nobody objects.