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From Makrand <makrandsa...@gmail.com>
Subject Re: CloudStack4.2.1 dnsmasq service down on VR
Date Tue, 12 Jan 2016 07:46:17 GMT
Ryota,

I've observed many issue with VR (CS 4.3), especially when they are running
for long time and handle considerable amount of traffic (more number of
VMs). Sometimes you will have /var full and sometimes VRs just don't hand
out any IPs to newly created VMs. Doing (clean) network restart works for
90% of networks issues. I believe newer versions of CS have much better
templates for VR and less issues.

Was there much activity happening on your VR when dnsmsq service stopped?

Makrand

On Tue, Jan 12, 2016 at 11:32 AM, 丸子良太 / MARUKO,RYOUTA <
ryota.maruko.fd@hitachi-solutions.com> wrote:

> Dear Dag,
>
> Thank you for your answer.
>
> I checked the VR log(/var/log/kern.log).
> It shows that the VR had been out of memory,
> and OOMKiller on VR occurred to stop apache2 & dnsmasq service.
>
> Do you have a such experience(out of memory on the VR)?
>
> Regards
>
> **************************************************
> Ryota Maruko
> Hitachi Solusions East Japan,Ltd.
> HPC Group
> PHS:070-6954-1466  FAX:022-266-2247
> mailto:ryota.maruko.fd@hitachi-solutions.com
> **************************************************
>
> >-----Original Message-----
> >From: Dag Sonstebo [mailto:Dag.Sonstebo@shapeblue.com]
> >Sent: Thursday, January 07, 2016 6:27 PM
> >To: users@cloudstack.apache.org
> >Subject: [!]Re: CloudStack4.2.1 dnsmasq service down on VR
> >
> >Hi Ryouta,
> >
> >there shouldn’t be any requirements for restarting VRs on a regular
> basis, but obviously do it (or restart network with
> >cleanup) when you hit problems.
> >
> >Having your VR up for a year is not bad going, and there could obviously
> be a number of root causes for the dnsmasq service
> >stopping. Also keep in mind 4.2 is a few years old now, and any issues or
> bugs will most likely be fixed in later releases.
> >
> >Regards,
> >
> >Dag Sonstebo
> >Cloud Architect
> >ShapeBlue
> >
> >
> >
> >
> >
> >
> >
> >ShapeBlue <http://www.shapeblue.com>    Dag Sonstebo
> >ShapeBlue
> >d:       | s: +44 203 603 0540 <tel:|%20s:%20+44%20203%20603%200540>
> >e:      Dag.Sonstebo@shapeblue.com | t:  <mailto:
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> >
> >On 07/01/2016, 06:07, "丸子良太 / MARUKO,RYOUTA" <
> ryota.maruko.fd@hitachi-solutions.com> wrote:
> >
> >>Hello.
> >>
> >>Please tearch me about the problem.
> >>
> >>I made 2 VMs(VM1/VM2) one year ago.
> >>A few days ago, I tried to ping from VM1 to VM2.
> >>But it was unrearchable, previously it was no problem.
> >>
> >>"# ping VM2.domainXXX" (.domainXXX is the guestnetwork setting domain)
> >>
> >>I checked up the VR log, So "dnsmasq" service on VR was down.
> >>I don't know why the service was down.
> >>Will it be better that I periodically restart VR?
> >>
> >>~~~~~~
> >>CloudStack 4.2.1
> >>XenServer 6.1.0
> >>~~~~~~
> >>
> >>Regard.
> >>
> >
> >Find out more about ShapeBlue and our range of CloudStack related
> services:
> >IaaS Cloud Design & Build <
> http://shapeblue.com/iaas-cloud-design-and-build//>  | CSForge – rapid
> IaaS deployment
> >framework <http://shapeblue.com/csforge/>
> >CloudStack Consulting <http://shapeblue.com/cloudstack-consultancy/>  |
> CloudStack Software Engineering
> ><http://shapeblue.com/cloudstack-software-engineering/>
> >CloudStack Infrastructure Support <
> http://shapeblue.com/cloudstack-infrastructure-support/>  | CloudStack
> Bootcamp
> >Training Courses <http://shapeblue.com/cloudstack-training/>
>
>


-- 
Best,
Makrand

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