[Starlingx-discuss] Alarm "Memory threshold"

Thu Feb 18 15:40:25 UTC 2021

Thank Liu.

On Thu, Feb 18, 2021 at 8:22 PM Liu, Tao <Tao.Liu at windriver.com> wrote:

> Yes, you can modify the host memory reservation via system command.
>
>
>
> # system host-memory-modify -m <Platform Reserved MiB> <hostname or id>
> <processor>
>
> system host-memory-modify -m 6400 1 0
>
>
>
> # show current memory configuration
>
> system host-memory-show <hostname or id> <processor>
>
> system host-memory-list <hostname or id>
>
>
>
> Tao
>
>
>
> *From:* open infra <openinfradn at gmail.com>
> *Sent:* Wednesday, February 17, 2021 9:55 PM
> *To:* Ildiko Vancsa <ildiko.vancsa at gmail.com>
> *Cc:* Rai, Ankush <Ankush.Rai at commscope.com>;
> starlingx-discuss at lists.starlingx.io
> *Subject:* Re: [Starlingx-discuss] Alarm "Memory threshold"
>
>
>
> [Please note: This e-mail is from an EXTERNAL e-mail address]
>
> Hi,
>
>
>
> Is there a way we can adjust memory and CPU of controller-0 before we
> deploy starlingx?
>
> In my case without having a single VM under OpenStack has following memory
> usage though host machine (I use AIO simplex on the virtualized
> environment) has enough memory.
>
>
>
> controller-0:~$ free -m
>               total        used        free      shared  buff/cache
> available
> Mem:          17894       11131         406          65        6356
>  5967
> Swap:             0           0           0
>
>
>
> On Sun, Feb 14, 2021 at 7:55 PM Ildiko Vancsa <ildiko.vancsa at gmail.com>
> wrote:
>
> Hi,
>
> I saw that you have a ‘reserved for platform’ memory entry with the value
> of 4600 MiB.
>
> I’ve found entries below that report platform memory usage having an over
> 100% value:
>
> daemon.log:2021-02-14T07:14:55.000 controller-0 collectd[130887]: info
> platform memory usage: Usage: 114.7%; Reserved: 4600.0 MiB, Platform:
> 5274.3 MiB (Base: 4684.1, k8s-system: 590.2), k8s-addon: 0.0
>
> So while the overall memory usage in the system isn’t over the threshold I
> assume the usage of that reserved amount of memory still exceeds it. Have
> you seen any configuration option to increase the amount of platform memory?
>
> You can also look into collectd if that leads you closer to what it is
> reading to get those values.
>
> I don’t have access to a StarlingX install to look into this, so I cannot
> tell where to look for that.
>
> I found some documentation for Kubernetes to set memory limits, but I’m
> not sure that applies here. (
> https://kubernetes.io/docs/tasks/administer-cluster/manage-resources/memory-default-namespace/
> )
>
> Have you looked into the above already?
>
> Thanks,
> Ildikó
>
>
> > On Feb 14, 2021, at 10:51, Rai, Ankush <Ankush.Rai at commscope.com> wrote:
> >
> > Not sure exactly which log file to check. Captured some data here,
> please check if this can help.
> >
> > Software Version: 20.06
> > Memory:
> > Reserved for Platform: 4600 MiB
> > Usable Total: 13293 MiB
> > Available: 13293 MiB
> >
> > The fm has logged these events.
> >
> > fm-event.log:2021-02-10T08:57:25.000 controller-0 fmManager: info {
> "event_log_id" : "100.103", "reason_text" : "Platform Memory threshold
> exceeded ; threshold 80.00%, actual 88.83%", "entity_instance_id" :
> "region=RegionOne.system=6e232236-df0a-4bc5-9006-76f782b5493f.host=controller-0",
> "severity" : "major", "state" : "set", "timestamp" : "2021-02-10
> 08:57:25.484131" }
> > fm-event.log:2021-02-10T09:17:55.000 controller-0 fmManager: info {
> "event_log_id" : "100.103", "reason_text" : "Platform Memory threshold
> exceeded ; threshold 90.00%, actual 95.19%", "entity_instance_id" :
> "region=RegionOne.system=6e232236-df0a-4bc5-9006-76f782b5493f.host=controller-0",
> "severity" : "critical", "state" : "set", "timestamp" : "2021-02-10
> 09:17:55.482154" }
> >
>
> [snip]
>
> >
> > From: Ildiko Vancsa <ildiko.vancsa at gmail.com>
> > Sent: Sunday, February 14, 2021 2:42 PM
> > To: Rai, Ankush <Ankush.Rai at commscope.com>
> > Cc: starlingx-discuss at lists.starlingx.io
> > Subject: Re: [Starlingx-discuss] Alarm "Memory threshold"
> >
> >
> > Hi Ankush,
> >
> > Do you have any log entries on the system you could share here that show
> the memory readings the alarm might be triggered by?
> >
> > Thanks,
> > Ildikó
> >
> >
> > > On Feb 14, 2021, at 09:26, Rai, Ankush <Ankush.Rai at commscope.com>
> wrote:
> > >
> > > Hi,
> > >
> > > Below alarm is getting raised for every node of the central and edge
> cloud.
> > >
> > > “Platform Memory threshold exceeded ; threshold 90.00%, actual 95.19%”
> > >
> > > It looks to be the false alarm as nodes are having enough available
> memory. Please config the root cause of this alarm.
> > >
> > > Thanks,
> > > Ankush
> > >
> > >
> > > _______________________________________________
> > > Starlingx-discuss mailing list
> > > Starlingx-discuss at lists.starlingx.io
> > >
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