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Posted to users@cloudstack.apache.org by 丸子良太 / MARUKO，RYOUTA <ry...@hitachi-solutions.com> on 2016/01/07 07:07:48 UTC
CloudStack4.2.1 dnsmasq service down on VR
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.
RE: Re: CloudStack4.2.1 dnsmasq service down on VR
Posted by 丸子良太 / MARUKO，RYOUTA <ry...@hitachi-solutions.com>.
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
>> >India and is operated under license from Shape Blue Ltd. Shape Blue
>> Brasil Consultoria Ltda is a company incorporated
>> >in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue SA
>> Pty Ltd is a company registered by The Republic
>> >of South Africa and is traded under license from Shape Blue Ltd.
>> ShapeBlue is a registered trademark.
>> >This email and any attachments to it may be confidential and are intended
>> solely for the use of the individual to whom
>> >it is addressed. Any views or opinions expressed are solely those of the
>> author and do not necessarily represent those
>> >of Shape Blue Ltd or related companies. If you are not the intended
>> recipient of this email, you must neither take any
>> >action based upon its contents, nor copy or show it to anyone. Please
>> contact the sender if you believe you have received
>> >this email in error.
>> >
>> >
>> >
>> >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
RE: CloudStack4.2.1 dnsmasq service down on VR
Posted by 丸子良太 / MARUKO，RYOUTA <ry...@hitachi-solutions.com>.
Dear Dag,
Thank you for your answer.
>As already mentioned - with newer versions of CloudStack more issues will have been fixed and you will be less likely
>to have any problems.
I understand your suggestion.
I will do it.
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: Tuesday, January 12, 2016 6:33 PM
>To: users@cloudstack.apache.org
>Subject: [!]Re: CloudStack4.2.1 dnsmasq service down on VR
>
>Hi Ryota,
>
>as pointed out by Makrand it can sometimes happen, mainly in environments with high VR load / throughput. In some cases
>we do advise an upgrade of the system VM service offering to give then more CPU and Memory resources, but I wouldn’t suggest
>that in your case without knowing the full picture.
>
>As already mentioned - with newer versions of CloudStack more issues will have been fixed and you will be less likely
>to have any problems.
>
>Regards,
>
>Dag Sonstebo
>Cloud Architect
>ShapeBlue
>
>
>
>
>
>
>On 12/01/2016, 07:46, "Makrand" <ma...@gmail.com> wrote:
>
>>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
>>> >India and is operated under license from Shape Blue Ltd. Shape Blue
>>> Brasil Consultoria Ltda is a company incorporated
>>> >in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue SA
>>> Pty Ltd is a company registered by The Republic
>>> >of South Africa and is traded under license from Shape Blue Ltd.
>>> ShapeBlue is a registered trademark.
>>> >This email and any attachments to it may be confidential and are intended
>>> solely for the use of the individual to whom
>>> >it is addressed. Any views or opinions expressed are solely those of the
>>> author and do not necessarily represent those
>>> >of Shape Blue Ltd or related companies. If you are not the intended
>>> recipient of this email, you must neither take any
>>> >action based upon its contents, nor copy or show it to anyone. Please
>>> contact the sender if you believe you have received
>>> >this email in error.
>>> >
>>> >
>>> >
>>> >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
>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/>
Re: CloudStack4.2.1 dnsmasq service down on VR
Posted by Dag Sonstebo <Da...@shapeblue.com>.
Hi Ryota,
as pointed out by Makrand it can sometimes happen, mainly in environments with high VR load / throughput. In some cases we do advise an upgrade of the system VM service offering to give then more CPU and Memory resources, but I wouldn’t suggest that in your case without knowing the full picture.
As already mentioned - with newer versions of CloudStack more issues will have been fixed and you will be less likely to have any problems.
Regards,
Dag Sonstebo
Cloud Architect
ShapeBlue
On 12/01/2016, 07:46, "Makrand" <ma...@gmail.com> wrote:
>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
>> >India and is operated under license from Shape Blue Ltd. Shape Blue
>> Brasil Consultoria Ltda is a company incorporated
>> >in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue SA
>> Pty Ltd is a company registered by The Republic
>> >of South Africa and is traded under license from Shape Blue Ltd.
>> ShapeBlue is a registered trademark.
>> >This email and any attachments to it may be confidential and are intended
>> solely for the use of the individual to whom
>> >it is addressed. Any views or opinions expressed are solely those of the
>> author and do not necessarily represent those
>> >of Shape Blue Ltd or related companies. If you are not the intended
>> recipient of this email, you must neither take any
>> >action based upon its contents, nor copy or show it to anyone. Please
>> contact the sender if you believe you have received
>> >this email in error.
>> >
>> >
>> >
>> >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
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/>
Re: CloudStack4.2.1 dnsmasq service down on VR
Posted by Makrand <ma...@gmail.com>.
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
> >India and is operated under license from Shape Blue Ltd. Shape Blue
> Brasil Consultoria Ltda is a company incorporated
> >in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue SA
> Pty Ltd is a company registered by The Republic
> >of South Africa and is traded under license from Shape Blue Ltd.
> ShapeBlue is a registered trademark.
> >This email and any attachments to it may be confidential and are intended
> solely for the use of the individual to whom
> >it is addressed. Any views or opinions expressed are solely those of the
> author and do not necessarily represent those
> >of Shape Blue Ltd or related companies. If you are not the intended
> recipient of this email, you must neither take any
> >action based upon its contents, nor copy or show it to anyone. Please
> contact the sender if you believe you have received
> >this email in error.
> >
> >
> >
> >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
RE: CloudStack4.2.1 dnsmasq service down on VR
Posted by 丸子良太 / MARUKO，RYOUTA <ry...@hitachi-solutions.com>.
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
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**************************************************
>-----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
>India and is operated under license from Shape Blue Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated
>in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue SA Pty Ltd is a company registered by The Republic
>of South Africa and is traded under license from Shape Blue Ltd. ShapeBlue is a registered trademark.
>This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom
>it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those
>of Shape Blue Ltd or related companies. If you are not the intended recipient of this email, you must neither take any
>action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received
>this email in error.
>
>
>
>On 07/01/2016, 06:07, "丸子良太 / MARUKO，RYOUTA" <ry...@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/>
Re: CloudStack4.2.1 dnsmasq service down on VR
Posted by Dag Sonstebo <Da...@shapeblue.com>.
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
[cid:image408f18.png@d6320974.44a60a41]
Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue Services India LLP is a company incorporated in India and is operated under license from Shape Blue Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue SA Pty Ltd is a company registered by The Republic of South Africa and is traded under license from Shape Blue Ltd. ShapeBlue is a registered trademark.
This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd or related companies. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error.
On 07/01/2016, 06:07, "丸子良太 / MARUKO，RYOUTA" <ry...@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/>