[lustre-discuss] Lustre 2.15.1 change log

Tung-Han Hsieh thhsieh at twcp1.phys.ntu.edu.tw
Thu Oct 6 08:37:52 PDT 2022


Dear Simon Guilbault and Colin Faber,

Sorry of my late replying to thank you very much for this good news.
Now we are finding chances to upgrade our clusters to 2.12.9 or 2.15.1
to take advantage of this nice bug fixing.

Best Regards,

T.H.Hsieh

On Fri, Sep 30, 2022 at 02:27:18PM -0600, Colin Faber wrote:
> It was also fixed in 2.12.8
> 
> On Fri, Sep 30, 2022, 1:28 PM Simon Guilbault <
> simon.guilbault at calculquebec.ca> wrote:
> 
> > Hi, the grant_shrink bug was fixed in 2.15.0 according to this JIRA:
> > https://jira.whamcloud.com/browse/LU-14124
> >
> > On Fri, Sep 30, 2022 at 3:59 AM Tung-Han Hsieh <
> > thhsieh at twcp1.phys.ntu.edu.tw> wrote:
> >
> >> Dear Peter,
> >>
> >> Thank you very much for your prompt reply.
> >>
> >> Actually we just encountered OST file server freezed a few hours ago,
> >> which installed Lustre-2.15.0 + zfs-2.0.7. Unfortunately all the kernel
> >> and event logs were lost. So we don't know what's going on.
> >>
> >> This system was upgraded to Lustre-2.15.0 + zfs-2.0.7 two days ago.
> >> Before that it runs Lustre-2.12.6 + zfs-0.7.13 smoothly for two years.
> >> So we suspected that this system crash was due to the Lustre upgrade.
> >> To take some actions, we just upgraded the system to Lustre-2.15.1 +
> >> zfs-2.0.7, and hope that it could run without problem.
> >>
> >> By the way, we did see some minor error messages in dmesg when mounting
> >> MDT and OST in the MDT and OST servers, respectively, with Lustre-2.15.0
> >> and 2.15.1:
> >>
> >> [ 1049.086838] systemd-udevd[6131]: Process '/usr/sbin/lctl set_param
> >> 'osc.*.grant_shrink=1'' failed with exit code 2.
> >>
> >> I guess this command should be run in the clients, but not valid in MDT
> >> and OST. Our /etc/udev/rules.d/99-lustre.rules reads:
> >>
> >> ========================================================================
> >> KERNEL=="obd", MODE="0666"
> >>
> >> # set sysfs values on client
> >> SUBSYSTEM=="lustre", ACTION=="change", ENV{PARAM}=="?*",
> >> RUN+="/usr/sbin/lctl set_param '$env{PARAM}=$env{SETTING}'"
> >> # setup linux routes for mr on lustre load
> >> SUBSYSTEM=="module", ACTION=="add", DEVPATH=="/module/lustre",
> >> RUN+="/usr/sbin/lnetctl setup-mrrouting"
> >> ========================================================================
> >>
> >> and /etc/udev/rules.d/99-lustre-server.rules reads:
> >>
> >> ========================================================================
> >> # Ensure block devices re-added to the system allow for large writes
> >> (LU-9551)
> >> # Currently applies only to ldiskfs-formatted devices
> >> ACTION!="add|change",    GOTO="l_tunedisk_end"
> >> SUBSYSTEM!="block",      GOTO="l_tunedisk_end"
> >> ENV{ID_FS_TYPE}!="ext4", GOTO="l_tunedisk_end"
> >>
> >> ENV{ID_FS_LABEL}=="MGS|*-MDT*|*-OST*", RUN+="/usr/sbin/l_tunedisk /dev/%k"
> >>
> >> LABEL="l_tunedisk_end"
> >> ========================================================================
> >>
> >> Further, when running Lustre-2.12.6 + zfs-0.7.3, we have to manually set
> >>
> >>         lctl set_para osc.*.grant_shrink=0
> >>
> >> in order to maintain reasonable performance when transferring large files.
> >> Is it necessary to do that for Lustre-2.15.X + zfs-2.0.7 ?
> >>
> >>
> >> Cheers,
> >>
> >> T.H.Hsieh
> >>
> >>
> >> On Fri, Sep 30, 2022 at 07:18:53AM +0000, Peter Jones wrote:
> >> > There is a general problem with the Lustre.org wiki ATM. Hopefully
> >> service will be restored shortly. In the meantime is there a specific piece
> >> of information that you wanted to know? The list of fixed issues is also
> >> available in JIRA for example -
> >> https://jira.whamcloud.com/secure/ReleaseNote.jspa?projectId=10000&version=15891
> >> >
> >> > ???On 2022-09-30, 12:09 AM, "lustre-discuss on behalf of Tung-Han
> >> Hsieh" <lustre-discuss-bounces at lists.lustre.org on behalf of
> >> thhsieh at twcp1.phys.ntu.edu.tw> wrote:
> >> >
> >> >     Dear All,
> >> >
> >> >     Could anyone point out where to find the Lustre-2.15.1 change log ?
> >> >
> >> >     This URL found in Lustre website is invalid:
> >> >
> >> >     https://wiki.lustre.org/Lustre_2.15.1_Changelog
> >> >
> >> >     Thank you very much.
> >> >
> >> >
> >> >     T.H.Hsieh
> >> >     _______________________________________________
> >> >     lustre-discuss mailing list
> >> >     lustre-discuss at lists.lustre.org
> >> >     http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org
> >> >
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> >>
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