Multipath 0.8.8 reports High CPU usage when having Lun's using Multipath

[Ninoy Radhakrishnan]

https://access.redhat.com/solutions/7059978

This is the similar bug reported by Redhat.

The issue is seen with Multipath 0.8.8 with Ubuntu 22.04 or lower. Especially with Ubuntu 22.04 the frequency is higher.

IF we use a compiled Multipath 0.9.4 or installed from MAntic package repo, the nodes seem to be fine.

Seems this impacting 0.8.8 till 0.9.3.
https://github.com/opensvc/multipath-tools/pull/31/commits/38851dcaafe31073655761228db7f09ffc5a9a58

[Kian Parvin (kian-parvin)]

Hi,

Thanks for the report. Was this targeted at the correct project? This is the bug report location for Canonical's Livepatch Client. I'm not sure I see the relation with Multipath.

[Ninoy Radhakrishnan (nradhakrishnan)]

Hi,

Please let me know, where I should file for Multipath.

Thanks,
Ninoy Radhakrishnan (he/him/his)
DevOps Solutions Architect
[phone]

> On May 21, 2024, at 8:40 AM, Kian Parvin <email address hidden> wrote:
>
> Hi,
>
> Thanks for the report. Was this targeted at the correct project? This is
> the bug report location for Canonical's Livepatch Client. I'm not sure I
> see the relation with Multipath.
>
> ** Changed in: canonical-livepatch-client
> Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/2066068
>
> Title:
> Multipath 0.8.8 reports High CPU usage when having Lun's using
> Multipath
>
> Status in Canonical Livepatch Client:
> Incomplete
>
> Bug description:
> https://access.redhat.com/solutions/7059978
>
> This is the similar bug reported by Redhat.
>
> The issue is seen with Multipath 0.8.8 with Ubuntu 22.04 or lower.
> Especially with Ubuntu 22.04 the frequency is higher.
>
> IF we use a compiled Multipath 0.9.4 or installed from MAntic package
> repo, the nodes seem to be fine.
>
> Seems this impacting 0.8.8 till 0.9.3.
> https://github.com/opensvc/multipath-tools/pull/31/commits/38851dcaafe31073655761228db7f09ffc5a9a58
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/canonical-livepatch-client/+bug/2066068/+subscriptions
>

[Kian Parvin (kian-parvin)]

Normally bugs for Ubuntu packages can be filed at https://bugs.launchpad.net/ubuntu/+source/<package-name>/+bugs

So you could file this bug at https://bugs.launchpad.net/ubuntu/+source/multipath-tools and probably check that there is no matching bug already. Hope that helps.

[Ninoy Radhakrishnan (nradhakrishnan)]

Thank you! Filed in the link provided.

Thanks,
Ninoy Radhakrishnan (he/him/his)
DevOps Solutions Architect
[phone]

> On May 21, 2024, at 9:31 AM, Kian Parvin <email address hidden> wrote:
>
> Normally bugs for Ubuntu packages can be filed at
> https://bugs.launchpad.net/ubuntu/+source/<package-name>/+bugs
>
> So you could file this bug at
> https://bugs.launchpad.net/ubuntu/+source/multipath-tools and probably
> check that there is no matching bug already. Hope that helps.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/2066068
>
> Title:
> Multipath 0.8.8 reports High CPU usage when having Lun's using
> Multipath
>
> Status in Canonical Livepatch Client:
> Incomplete
>
> Bug description:
> https://access.redhat.com/solutions/7059978
>
> This is the similar bug reported by Redhat.
>
> The issue is seen with Multipath 0.8.8 with Ubuntu 22.04 or lower.
> Especially with Ubuntu 22.04 the frequency is higher.
>
> IF we use a compiled Multipath 0.9.4 or installed from MAntic package
> repo, the nodes seem to be fine.
>
> Seems this impacting 0.8.8 till 0.9.3.
> https://github.com/opensvc/multipath-tools/pull/31/commits/38851dcaafe31073655761228db7f09ffc5a9a58
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/canonical-livepatch-client/+bug/2066068/+subscriptions
>