Hi Benedikt,
You are right , disabling performance.readdir-ahead didn't solve the issue for me.
It took a little longer to find out, and I wasn't sure if the errors were already there before turning off the setting.
Is your volume full replica or are you using an arbiter?
On Wed, Nov 18, 2020 at 1:16 PM Benedikt Kaleß <benedikt.kaless@xxxxxxxxxxx> wrote:
Dear Martin,
Do you have any new observations regarding this issue?
I just found your thread. This error of missing files on a fuse mounts is appearing on my setup with 3 replicated bricks on gluster 8.2. too.
I set performance.readdir-ahead: off but the error still occurs quite frequently.
Best regards
Bene
Am 04.11.20 um 12:07 schrieb Martín Lorenzo:
Thanks Mahdi, I'll try that option, I hope it doesn't come with a big performance penalty.Recently upgraded to 7.8 by Strahil's advice, but before that, I had the feeling that restarting the brick processes in one node in particular (the one with the most user connections) helped a lot.
I've setup an experiment/workaround on a frequently used dir. A cron script creates a directory there every minute, sleeps 2 seconds and removes it. At the same time in a different node node /mount i am listling (long format) the same base directory, every minute. On the latter, in the mount logs I am constantly getting this message every 2 - 3 minutes (checkglus12 is the dir I am creating/removing):[2020-11-04 09:53:02.087991] I [MSGID: 109063] [dht-layout.c:647:dht_layout_normalize] 0-tapeless-dht: Found anomalies in /interno/checkglus12 (gfid = 00000000-0000-0000-0000-000000000000). Holes=1 overlaps=0
The other issue I found on the logs, is that I find self-heal entries all the time, during "normal" operations. Here is an excerpt (grepping 'heal')[2020-11-03 21:33:39.189343] I [MSGID: 108026] [afr-self-heal-common.c:1744:afr_log_selfheal] 0-tapeless-replicate-1: Completed metadata selfheal on c1e69788-7211-40d4-a38c-8d21786b0438. sources=0 [1] sinks=2
[2020-11-03 21:33:47.870217] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-1: performing metadata selfheal on df127689-98ba-4a35-9bb7-32067de57615
[2020-11-03 21:33:47.875594] I [MSGID: 108026] [afr-self-heal-common.c:1744:afr_log_selfheal] 0-tapeless-replicate-1: Completed metadata selfheal on df127689-98ba-4a35-9bb7-32067de57615. sources=0 [1] sinks=2
[2020-11-03 21:50:01.331224] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-1: performing metadata selfheal on 3c316533-5f47-4267-ac19-58b3be305b94
[2020-11-03 21:50:01.340247] I [MSGID: 108026] [afr-self-heal-common.c:1744:afr_log_selfheal] 0-tapeless-replicate-1: Completed metadata selfheal on 3c316533-5f47-4267-ac19-58b3be305b94. sources=0 [1] sinks=2
[2020-11-03 21:52:45.269751] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-1: performing metadata selfheal on f2e404e2-0550-4a2e-9a79-1724e7e4c8f0
Thanks again for your helpRegards,Martin
On Wed, Nov 4, 2020 at 4:59 AM Mahdi Adnan <mahdi@xxxxxxxxx> wrote:
Hello Martín,
Try to disable "performance.readdir-ahead", we had a similar issue, and disabling "performance.readdir-ahead" solved our issue.gluster volume set tapeless performance.readdir-ahead off
On Tue, Oct 27, 2020 at 8:23 PM Martín Lorenzo <mlorenzo@xxxxxxxxx> wrote:
Hi Strahil, today we have the same number clients on all nodes, but the problem persists. I have the impression that it gets more frequent as the server capacity fills up, now we are having at least one incident per day.Regards,Martin
________On Mon, Oct 26, 2020 at 8:09 AM Martín Lorenzo <mlorenzo@xxxxxxxxx> wrote:
HI Strahil, thanks for your reply,I had one node with 13 clients, the rest with 14. I've just restarted the services on that node, now I have 14, let's see what happens.Regarding the samba repos, I wasn't aware of that, I was using centos main repo. I'll check the outBest Regards,Martin
On Tue, Oct 20, 2020 at 3:19 PM Strahil Nikolov <hunter86_bg@xxxxxxxxx> wrote:
Do you have the same ammount of clients connected to each brick ?
I guess something like this can show it:
gluster volume status VOL clients
gluster volume status VOL client-list
Best Regards,
Strahil Nikolov
В вторник, 20 октомври 2020 г., 15:41:45 Гринуич+3, Martín Lorenzo <mlorenzo@xxxxxxxxx> написа:
Hi, I have the following problem, I have a distributed replicated cluster set up with samba and CTDB, over fuse mount points
I am having inconsistencies across the FUSE mounts, users report that files are disappearing after being copied/moved. I take a look at the mount points on each node, and they don't display the same data
#### faulty mount point####
[root@gluster6 ARRIBA GENTE martes 20 de octubre]# ll
ls: cannot access PANEO VUELTA A CLASES CON TAPABOCAS.mpg: No such file or directory
ls: cannot access PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg: No such file or directory
total 633723
drwxr-xr-x. 5 arribagente PN 4096 Oct 19 10:52 COMERCIAL AG martes 20 de octubre
-rw-r--r--. 1 arribagente PN 648927236 Jun 3 07:16 PANEO FACHADA PALACIO LEGISLATIVO DRONE DIA Y NOCHE.mpg
-?????????? ? ? ? ? ? PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg
-?????????? ? ? ? ? ? PANEO VUELTA A CLASES CON TAPABOCAS.mpg
###healthy mount point###
[root@gluster7 ARRIBA GENTE martes 20 de octubre]# ll
total 3435596
drwxr-xr-x. 5 arribagente PN 4096 Oct 19 10:52 COMERCIAL AG martes 20 de octubre
-rw-r--r--. 1 arribagente PN 648927236 Jun 3 07:16 PANEO FACHADA PALACIO LEGISLATIVO DRONE DIA Y NOCHE.mpg
-rw-r--r--. 1 arribagente PN 2084415492 Aug 18 09:14 PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg
-rw-r--r--. 1 arribagente PN 784701444 Sep 4 07:23 PANEO VUELTA A CLASES CON TAPABOCAS.mpg
- So far the only way to solve this is to create a directory in the healthy mount point, on the same path:
[root@gluster7 ARRIBA GENTE martes 20 de octubre]# mkdir hola
- When you refresh the other mountpoint, and the issue is resolved:
[root@gluster6 ARRIBA GENTE martes 20 de octubre]# ll
total 3435600
drwxr-xr-x. 5 arribagente PN 4096 Oct 19 10:52 COMERCIAL AG martes 20 de octubre
drwxr-xr-x. 2 root root 4096 Oct 20 08:45 hola
-rw-r--r--. 1 arribagente PN 648927236 Jun 3 07:16 PANEO FACHADA PALACIO LEGISLATIVO DRONE DIA Y NOCHE.mpg
-rw-r--r--. 1 arribagente PN 2084415492 Aug 18 09:14 PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg
-rw-r--r--. 1 arribagente PN 784701444 Sep 4 07:23 PANEO VUELTA A CLASES CON TAPABOCAS.mpg
Interestingly, the error occurs on the mount point where the files were copied. They don't show up as pending heal entries. I have around 15 people using them over samba, I think I'm having this issue reported every two days.
I have an older cluster with similar issues, different gluster version, but a very similar topology (4 bricks, initially two bricks then expanded)
Please note , the bricks aren't the same size (but their replicas are), so my other suspicion is that rebalancing has something to do with it.
I'm trying to reproduce it over a small virtualized cluster, so far no results.
Here are the cluster details
four nodes, replica 2, plus one arbiter hosting 2 bricks
I have 2 bricks with ~20 TB capacity and the other pair is ~48TB
Volume Name: tapeless
Type: Distributed-Replicate
Volume ID: 53bfa86d-b390-496b-bbd7-c4bba625c956
Status: Started
Snapshot Count: 0
Number of Bricks: 2 x (2 + 1) = 6
Transport-type: tcp
Bricks:
Brick1: gluster6.glustersaeta.net:/data/glusterfs/tapeless/brick_6/brick
Brick2: gluster7.glustersaeta.net:/data/glusterfs/tapeless/brick_7/brick
Brick3: kitchen-store.glustersaeta.net:/data/glusterfs/tapeless/brick_1a/brick (arbiter)
Brick4: gluster12.glustersaeta.net:/data/glusterfs/tapeless/brick_12/brick
Brick5: gluster13.glustersaeta.net:/data/glusterfs/tapeless/brick_13/brick
Brick6: kitchen-store.glustersaeta.net:/data/glusterfs/tapeless/brick_2a/brick (arbiter)
Options Reconfigured:
features.quota-deem-statfs: on
performance.client-io-threads: on
nfs.disable: on
transport.address-family: inet
features.quota: on
features.inode-quota: on
features.cache-invalidation: on
features.cache-invalidation-timeout: 600
performance.cache-samba-metadata: on
performance.stat-prefetch: on
performance.cache-invalidation: on
performance.md-cache-timeout: 600
network.inode-lru-limit: 200000
performance.nl-cache: on
performance.nl-cache-timeout: 600
performance.readdir-ahead: on
performance.parallel-readdir: on
performance.cache-size: 1GB
client.event-threads: 4
server.event-threads: 4
performance.normal-prio-threads: 16
performance.io-thread-count: 32
performance.write-behind-window-size: 8MB
storage.batch-fsync-delay-usec: 0
cluster.data-self-heal: on
cluster.metadata-self-heal: on
cluster.entry-self-heal: on
cluster.self-heal-daemon: on
performance.write-behind: on
performance.open-behind: on
Log section form faulty mount point. I think the [file exists] entries are from people trying to copy the missing files over an over
[2020-10-20 11:31:03.034220] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:32:06.684329] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:33:02.191863] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:34:05.841608] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:35:20.736633] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-1: performing metadata selfheal on 958dbd7a-3cd7-4b66-9038-76e5c5669644
[2020-10-20 11:35:20.741213] I [MSGID: 108026] [afr-self-heal-common.c:1750:afr_log_selfheal] 0-tapeless-replicate-1: Completed metadata selfheal on 958dbd7a-3cd7-4b66-9038-76e5c5669644. sources=[0] 1 sinks=2
[2020-10-20 11:35:04.278043] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
The message "I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-1: performing metadata selfheal on 958dbd7a-3cd7-4b66-9038-76e5c5669644" repeated 3 times between [2020-10-20 11:35:20.736633] and [2020-10-20 11:35:26.733298]
The message "I [MSGID: 108026] [afr-self-heal-common.c:1750:afr_log_selfheal] 0-tapeless-replicate-1: Completed metadata selfheal on 958dbd7a-3cd7-4b66-9038-76e5c5669644. sources=[0] 1 sinks=2 " repeated 3 times between [2020-10-20 11:35:20.741213] and [2020-10-20 11:35:26.737629]
[2020-10-20 11:36:02.548350] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:36:57.365537] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-1: performing metadata selfheal on f4907af2-1775-4c46-89b5-e9776df6d5c7
[2020-10-20 11:36:57.370824] I [MSGID: 108026] [afr-self-heal-common.c:1750:afr_log_selfheal] 0-tapeless-replicate-1: Completed metadata selfheal on f4907af2-1775-4c46-89b5-e9776df6d5c7. sources=[0] 1 sinks=2
[2020-10-20 11:37:01.363925] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-1: performing metadata selfheal on f4907af2-1775-4c46-89b5-e9776df6d5c7
[2020-10-20 11:37:01.368069] I [MSGID: 108026] [afr-self-heal-common.c:1750:afr_log_selfheal] 0-tapeless-replicate-1: Completed metadata selfheal on f4907af2-1775-4c46-89b5-e9776df6d5c7. sources=[0] 1 sinks=2
The message "I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0" repeated 3 times between [2020-10-20 11:36:02.548350] and [2020-10-20 11:37:36.389208]
[2020-10-20 11:38:07.367113] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:39:01.595981] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:40:04.184899] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:41:07.833470] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:42:01.871621] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:43:04.399194] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:44:04.558647] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:44:15.953600] W [MSGID: 114031] [client-rpc-fops_v2.c:2114:client4_0_create_cbk] 0-tapeless-client-5: remote operation failed. Path: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg [File exists]
[2020-10-20 11:44:15.953819] W [MSGID: 114031] [client-rpc-fops_v2.c:2114:client4_0_create_cbk] 0-tapeless-client-2: remote operation failed. Path: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg [File exists]
[2020-10-20 11:44:15.954072] W [MSGID: 114031] [client-rpc-fops_v2.c:2114:client4_0_create_cbk] 0-tapeless-client-3: remote operation failed. Path: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg [File exists]
[2020-10-20 11:44:15.954680] W [fuse-bridge.c:2606:fuse_create_cbk] 0-glusterfs-fuse: 31043294: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg => -1 (File exists)
[2020-10-20 11:44:15.963175] W [fuse-bridge.c:2606:fuse_create_cbk] 0-glusterfs-fuse: 31043306: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg => -1 (File exists)
[2020-10-20 11:44:15.971839] W [fuse-bridge.c:2606:fuse_create_cbk] 0-glusterfs-fuse: 31043318: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg => -1 (File exists)
[2020-10-20 11:44:16.010242] W [fuse-bridge.c:2606:fuse_create_cbk] 0-glusterfs-fuse: 31043403: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg => -1 (File exists)
[2020-10-20 11:44:16.020291] W [fuse-bridge.c:2606:fuse_create_cbk] 0-glusterfs-fuse: 31043415: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg => -1 (File exists)
[2020-10-20 11:44:16.028857] W [fuse-bridge.c:2606:fuse_create_cbk] 0-glusterfs-fuse: 31043427: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg => -1 (File exists)
The message "W [MSGID: 114031] [client-rpc-fops_v2.c:2114:client4_0_create_cbk] 0-tapeless-client-5: remote operation failed. Path: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg [File exists]" repeated 5 times between [2020-10-20 11:44:15.953600] and [2020-10-20 11:44:16.027785]
The message "W [MSGID: 114031] [client-rpc-fops_v2.c:2114:client4_0_create_cbk] 0-tapeless-client-2: remote operation failed. Path: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg [File exists]" repeated 5 times between [2020-10-20 11:44:15.953819] and [2020-10-20 11:44:16.028331]
The message "W [MSGID: 114031] [client-rpc-fops_v2.c:2114:client4_0_create_cbk] 0-tapeless-client-3: remote operation failed. Path: /PN/arribagente/PLAYER 2020/ARRIBA GENTE martes 20 de octubre/PANEO NIÑOS ESCUELAS CON TAPABOCAS.mpg [File exists]" repeated 5 times between [2020-10-20 11:44:15.954072] and [2020-10-20 11:44:16.028355]
[2020-10-20 11:45:03.572106] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:45:40.080010] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
The message "I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0" repeated 2 times between [2020-10-20 11:45:40.080010] and [2020-10-20 11:47:10.871801]
[2020-10-20 11:48:03.913129] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:49:05.082165] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:50:06.725722] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:51:04.254685] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:52:07.903617] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:53:01.420513] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-tapeless-replicate-0: performing metadata selfheal on 3c316533-5f47-4267-ac19-58b3be305b94
[2020-10-20 11:53:01.428657] I [MSGID: 108026] [afr-self-heal-common.c:1750:afr_log_selfheal] 0-tapeless-replicate-0: Completed metadata selfheal on 3c316533-5f47-4267-ac19-58b3be305b94. sources=[0] sinks=1 2
The message "I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0" repeated 3 times between [2020-10-20 11:52:07.903617] and [2020-10-20 11:53:12.037835]
[2020-10-20 11:54:02.208354] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:55:04.360284] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:56:09.508092] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:57:02.580970] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
[2020-10-20 11:58:06.230698] I [MSGID: 108031] [afr-common.c:2581:afr_local_discovery_cbk] 0-tapeless-replicate-0: selecting local read_child tapeless-client-0
Let me know if you need something else. Thank you for you suppoort!
Best Regards,
Martin Lorenzo
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