Glusterfs now in healing mode:

Receiver:
[root@clei21 ~]# arcstat.py 1
    time read miss miss% dmis dm% pmis pm% mmis mm% arcsz     c
13:24:49     0     0      0     0    0     0    0     0    0   4.6G   31G
13:24:50   154    80     51    80   51     0    0    80   51   4.6G   31G
13:24:51   179    62     34    62   34     0    0    62   42   4.6G   31G
13:24:52   148    68     45    68   45     0    0    68   45   4.6G   31G
13:24:53   140    64     45    64   45     0    0    64   45   4.6G   31G
13:24:54   124    48     38    48   38     0    0    48   38   4.6G   31G
13:24:55   157    80     50    80   50     0    0    80   50   4.7G   31G
13:24:56   202    68     33    68   33     0    0    68   41   4.7G   31G
13:24:57   127    54     42    54   42     0    0    54   42   4.7G   31G
13:24:58   126    50     39    50   39     0    0    50   39   4.7G   31G
13:24:59   116    40     34    40   34     0    0    40   34   4.7G   31G

Sender
[root@clei22 ~]# arcstat.py 1
    time read miss miss% dmis dm% pmis pm% mmis mm% arcsz     c
13:28:37     8     2     25     2   25     0    0     2   25   468M   31G
13:28:38 1.2K   727     62   727   62     0    0   525   54   469M   31G
13:28:39   815   508     62   508   62     0    0   376   55   469M   31G
13:28:40   994   624     62   624   62     0    0   450   54   469M   31G
13:28:41   783   456     58   456   58     0    0   338   50   470M   31G
13:28:42   916   541     59   541   59     0    0   390   50   470M   31G
13:28:43   768   437     56   437   57     0    0   313   48   471M   31G
13:28:44   877   534     60   534   60     0    0   393   53   470M   31G
13:28:45   957   630     65   630   65     0    0   450   57   470M   31G
13:28:46   819   479     58   479   58     0    0   357   51   471M   31G

On Thu, Mar 2, 2017 at 7:18 PM, Juan Pablo <pablo.localhost@gmail.com> wrote:

hey,
what are you using for zfs? get an arc status and show please
2017-03-02 9:57 GMT-03:00 Arman Khalatyan <arm2arm@gmail.com>:
no,
ZFS itself is not on top of lvm. only ssd was spitted by lvm for slog(10G) and cache (the rest)
but in any-case the ssd does not help much on glusterfs/ovirt load it has almost 100% cache misses....:( (terrible performance compare with nfs)
On Thu, Mar 2, 2017 at 1:47 PM, FERNANDO FREDIANI <fernando.frediani@upx.com> wrote:
Am I understanding correctly, but you have Gluster on the top of ZFS which is on the top of LVM ? If so, why the usage of LVM was necessary ? I have ZFS with any need of LVM.

Fernando

On 02/03/2017 06:19, Arman Khalatyan wrote:
Hi,

I use 3 nodes with zfs and glusterfs.

Are there any suggestions to optimize it?

host zfs config 4TB-HDD+250GB-SSD:
[root@clei22 ~]# zpool status
pool: zclei22
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0 errors on Tue Feb 28 14:16:07 2017
config:

    NAME                                    STATE     READ WRITE CKSUM
    zclei22                                 ONLINE       0     0     0
    HGST_HUS724040ALA640_PN2334PBJ4SV6T1 ONLINE       0     0     0
    logs
    lv_slog                               ONLINE       0     0     0
    cache
    lv_cache                              ONLINE       0     0     0

errors: No known data errors

Name:
GluReplica
Volume ID:
ee686dfe-203a-4caa-a691-26353460cc48
Volume Type:
Replicate (Arbiter)
Replica Count:
2 + 1
Number of Bricks:
3
Transport Types:
TCP, RDMA
Maximum no of snapshots:
256
Capacity:
3.51 TiB total, 190.56 GiB used, 3.33 TiB free

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