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From 丸子良太 / MARUKO,RYOUTA <ryota.maruko...@hitachi-solutions.com>
Subject RE: Re: CloudStack4.2.1 dnsmasq service down on VR
Date Wed, 13 Jan 2016 07:06:28 GMT
Dear Makrand,

Thank you for your answer.

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

I checked the network traffic of 8 VMs under the VR when dnsmasq service stopped.
But they were not amount of traffic, total traffic(In&Out) was about 600Kbps.

>I believe newer versions of CS have much better
>templates for VR and less issues.

I think so, I will mearsure with newer version of CS.

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: Makrand [mailto:makrandsanap@gmail.com]
>Sent: Tuesday, January 12, 2016 4:46 PM
>To: users@cloudstack.apache.org
>Subject: [!]Re: CloudStack4.2.1 dnsmasq service down on VR
>
>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:
>> Dag.Sonstebo@shapeblue.com%20|%20t:>    |      w:
>> >www.shapeblue.com <http://www.shapeblue.com>
>> >a:      53 Chandos Place, Covent Garden London WC2N 4HS UK
>> >
>> >Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue
>> Services India LLP is a company incorporated in
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>> Brasil Consultoria Ltda is a company incorporated
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>> Pty Ltd is a company registered by The Republic
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>> ShapeBlue is a registered trademark.
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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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