Ing. Luca Lazzeroni - Trend Servizi Srl
2018-Jan-16 13:26 UTC
[Gluster-users] Strange messages in mnt-xxx.log
Hi, I'm testing gluster 3.12.4 and, by inspecting log files /var/log/glusterfs/mnt-gv0.log (gv0 is the volume name), I found many lines saying: [2018-01-15 09:45:41.066914] I [MSGID: 109063] [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies in (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0 [2018-01-15 09:45:45.755021] I [MSGID: 109063] [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies in (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0 [2018-01-15 14:02:29.171437] I [MSGID: 109063] [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies in (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0 What do they mean ? Is there any real problem ? Thank you, -- Ing. Luca Lazzeroni Responsabile Ricerca e Sviluppo Trend Servizi Srl Tel: 0376/631761 Web: https://www.trendservizi.it
Hi, On 16 January 2018 at 18:56, Ing. Luca Lazzeroni - Trend Servizi Srl < luca at trendservizi.it> wrote:> Hi, > > I'm testing gluster 3.12.4 and, by inspecting log files > /var/log/glusterfs/mnt-gv0.log (gv0 is the volume name), I found many lines > saying: > > [2018-01-15 09:45:41.066914] I [MSGID: 109063] > [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies in > (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0 > [2018-01-15 09:45:45.755021] I [MSGID: 109063] > [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies in > (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0 > [2018-01-15 14:02:29.171437] I [MSGID: 109063] > [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies in > (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0 > > What do they mean ? Is there any real problem ? > >Please provide the following details: gluster volume info what clients you are using and what operations being performed Any steps to reproduce this issue. Thanks, Nithya Thank you,> > > -- > Ing. Luca Lazzeroni > Responsabile Ricerca e Sviluppo > Trend Servizi Srl > Tel: 0376/631761 > Web: https://www.trendservizi.it > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://lists.gluster.org/mailman/listinfo/gluster-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20180117/f39418ff/attachment.html>
Ing. Luca Lazzeroni - Trend Servizi Srl
2018-Jan-17 10:34 UTC
[Gluster-users] [Possibile SPAM] Re: Strange messages in mnt-xxx.log
Here's the volume info:
Volume Name: gv2a2
Type: Replicate
Volume ID: 83c84774-2068-4bfc-b0b9-3e6b93705b9f
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x (2 + 1) = 3
Transport-type: tcp
Bricks:
Brick1: gluster1:/bricks/brick2/gv2a2
Brick2: gluster3:/bricks/brick3/gv2a2
Brick3: gluster2:/bricks/arbiter_brick_gv2a2/gv2a2 (arbiter)
Options Reconfigured:
storage.owner-gid: 107
storage.owner-uid: 107
user.cifs: off
features.shard: on
cluster.shd-wait-qlength: 10000
cluster.shd-max-threads: 8
cluster.locking-scheme: granular
cluster.data-self-heal-algorithm: full
cluster.server-quorum-type: server
cluster.quorum-type: auto
cluster.eager-lock: enable
network.remote-dio: enable
performance.low-prio-threads: 32
performance.io-cache: off
performance.read-ahead: off
performance.quick-read: off
transport.address-family: inet
nfs.disable: off
performance.client-io-threads: off
The only client I'm using is FUSE client used to mount the gluster
volume. On the gluster volume there is a maximum of 15 files ("big"
files because they host VM images) accessed by qemu-kvm as normal files
on the FUSE mounted volume.
By inspecting the code I've found that the message is logged in 2
situations:
1) A real "Hole" in DHT
2) A "virgin" file being created
I think this is the second situation because that message appears only
when I create a new qcow2 volume to host VM image.
Il 17/01/2018 04:54, Nithya Balachandran ha scritto:> Hi,
>
>
> On 16 January 2018 at 18:56, Ing. Luca Lazzeroni - Trend Servizi Srl
> <luca at trendservizi.it <mailto:luca at trendservizi.it>>
wrote:
>
> Hi,
>
> I'm testing gluster 3.12.4 and, by inspecting log files
> /var/log/glusterfs/mnt-gv0.log (gv0 is the volume name), I found
> many lines saying:
>
> [2018-01-15 09:45:41.066914] I [MSGID: 109063]
> [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies
> in (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1
> overlaps=0
> [2018-01-15 09:45:45.755021] I [MSGID: 109063]
> [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies
> in (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1
> overlaps=0
> [2018-01-15 14:02:29.171437] I [MSGID: 109063]
> [dht-layout.c:716:dht_layout_normalize] 0-gv0-dht: Found anomalies
> in (null) (gfid = 00000000-0000-0000-0000-000000000000). Holes=1
> overlaps=0
>
> What do they mean ? Is there any real problem ?
>
>
> Please provide the following details:
> gluster volume info
> what clients you are using and what operations being performed
> Any steps to reproduce this issue.
>
> Thanks,
> Nithya
>
> Thank you,
>
>
> --
> Ing. Luca Lazzeroni
> Responsabile Ricerca e Sviluppo
> Trend Servizi Srl
> Tel: 0376/631761
> Web: https://www.trendservizi.it
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org <mailto:Gluster-users at
gluster.org>
> http://lists.gluster.org/mailman/listinfo/gluster-users
> <http://lists.gluster.org/mailman/listinfo/gluster-users>
>
>
--
Ing. Luca Lazzeroni
Responsabile Ricerca e Sviluppo
Trend Servizi Srl
Tel: 0376/631761
Web: https://www.trendservizi.it
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