[Gluster-users] How to enable shared_storage?

Sun Nov 20 08:03:17 UTC 2016

To enable shared storage I used next command:
# gluster volume set all cluster.enable-shared-storage enable

But it seems that it doesn't create gluster_shared_storage automatically.

# gluster volume status gluster_shared_storage
Volume gluster_shared_storage does not exist

Do I need to manually create a volume "gluster_shared_storage"? Do I need
to manually create a folder "/var/run/gluster/shared_storage"? Do I need to
manually mount it? Or something I don't need to do?

If I use 6 cluster nodes and I need to have a shared storage on all of them
then how to create a shared storage?
It says that it have to be with replication 2 or replication 3. But if we
use shared storage on all of 6 nodes then we have only 2 ways to create a
volume:
1. Use replication 6
2. Use replication 3 with distribution.

Which way I need to use?

Sincerely,
Alexandr

On Sun, Nov 20, 2016 at 9:07 AM, Jiffin Tony Thottan <jthottan at redhat.com>
wrote:

>
>
> On 19/11/16 21:47, Alexandr Porunov wrote:
>
> Unfortunately I haven't this log file but I have
> 'run-gluster-shared_storage.log' and it has errors I don't know why.
>
> Here is the content of the 'run-gluster-shared_storage.log':
>
>
> Make sure shared storage is up and running using "gluster volume status
> gluster_shared_storage"
>
> May be the issue is related to firewalld or iptables. Try it after
> disabling them.
>
> --
>
> Jiffin
>
> [2016-11-19 10:37:01.581737] I [MSGID: 100030] [glusterfsd.c:2454:main]
> 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 3.8.5
> (args: /usr/sbin/glusterfs --volfile-server=127.0.0.1
> --volfile-id=gluster_shared_storage /run/gluster/shared_storage)
> [2016-11-19 10:37:01.641836] I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
> 0-epoll: Started thread with index 1
> [2016-11-19 10:37:01.642311] E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
> 0-glusterfs: failed to get the 'volume file' from server
> [2016-11-19 10:37:01.642340] E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
> 0-mgmt: failed to fetch volume file (key:gluster_shared_storage)
> [2016-11-19 10:37:01.642592] W [glusterfsd.c:1327:cleanup_and_exit]
> (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90) [0x7f95cd309770]
> -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536) [0x7f95cda3afc6]
> -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x7f95cda34b4b] ) 0-:
> received signum (0), shutting down
> [2016-11-19 10:37:01.642638] I [fuse-bridge.c:5793:fini] 0-fuse:
> Unmounting '/run/gluster/shared_storage'.
> [2016-11-19 10:37:18.798787] I [MSGID: 100030] [glusterfsd.c:2454:main]
> 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 3.8.5
> (args: /usr/sbin/glusterfs --volfile-server=127.0.0.1
> --volfile-id=gluster_shared_storage /run/gluster/shared_storage)
> [2016-11-19 10:37:18.813011] I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
> 0-epoll: Started thread with index 1
> [2016-11-19 10:37:18.813363] E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
> 0-glusterfs: failed to get the 'volume file' from server
> [2016-11-19 10:37:18.813386] E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
> 0-mgmt: failed to fetch volume file (key:gluster_shared_storage)
> [2016-11-19 10:37:18.813592] W [glusterfsd.c:1327:cleanup_and_exit]
> (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90) [0x7f96ba4c7770]
> -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536) [0x7f96babf8fc6]
> -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x7f96babf2b4b] ) 0-:
> received signum (0), shutting down
>
> [2016-11-19 10:37:18.813633] I [fuse-bridge.c:5793:fini] 0-fuse:
> Unmounting '/run/gluster/shared_storage'.
> [2016-11-19 10:40:33.115685] I [MSGID: 100030] [glusterfsd.c:2454:main]
> 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 3.8.5
> (args: /usr/sbin/glusterfs --volfile-server=127.0.0.1
> --volfile-id=gluster_shared_storage /run/gluster/shared_storage)
> [2016-11-19 10:40:33.124218] I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
> 0-epoll: Started thread with index 1
> [2016-11-19 10:40:33.124722] E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
> 0-glusterfs: failed to get the 'volume file' from server
> [2016-11-19 10:40:33.124738] E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
> 0-mgmt: failed to fetch volume file (key:gluster_shared_storage)
>
>
> [2016-11-19 10:40:33.124869] W [glusterfsd.c:1327:cleanup_and_exit]
> (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90) [0x7f23576a9770]
> -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536) [0x7f2357ddafc6]
> -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x7f2357dd4b4b] ) 0-:
> received signum (0), shutting down
>
> [2016-11-19 10:40:33.124896] I [fuse-bridge.c:5793:fini] 0-fuse:
> Unmounting '/run/gluster/shared_storage'.
> [2016-11-19 10:44:36.029838] I [MSGID: 100030] [glusterfsd.c:2454:main]
> 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 3.8.5
> (args: /usr/sbin/glusterfs --volfile-server=127.0.0.1
> --volfile-id=gluster_shared_storage /run/gluster/shared_storage)
> [2016-11-19 10:44:36.043705] I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker]
> 0-epoll: Started thread with index 1
> [2016-11-19 10:44:36.044082] E [glusterfsd-mgmt.c:1586:mgmt_getspec_cbk]
> 0-glusterfs: failed to get the 'volume file' from server
> [2016-11-19 10:44:36.044106] E [glusterfsd-mgmt.c:1686:mgmt_getspec_cbk]
> 0-mgmt: failed to fetch volume file (key:gluster_shared_storage)
>
>
> [2016-11-19 10:44:36.044302] W [glusterfsd.c:1327:cleanup_and_exit]
> (-->/lib64/libgfrpc.so.0(rpc_clnt_handle_reply+0x90) [0x7fbd9dced770]
> -->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x536) [0x7fbd9e41efc6]
> -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x7fbd9e418b4b] ) 0-:
> received signum (0), shutting down
>
> [2016-11-19 10:44:36.044356] I [fuse-bridge.c:5793:fini] 0-fuse:
> Unmounting '/run/gluster/shared_storage'.
>
> Can you help me to figure out what I am doing wrong?
>
> Sincerely,
> Alexandr
>
> On Sat, Nov 19, 2016 at 3:18 PM, Saravanakumar Arumugam <
> sarumuga at redhat.com> wrote:
>
>>
>>
>> On 11/19/2016 04:13 PM, Alexandr Porunov wrote:
>>
>> It still doesn't work..
>>
>> I have created that dir:
>> # mkdir -p /var/run/gluster/shared_storage
>>
>> and then:
>> # mount -t glusterfs 127.0.0.1:gluster_shared_storage
>> /var/run/gluster/shared_storage
>> Mount failed. Please check the log file for more details.
>>
>> Where to find a proper file to read logs? Because "/var/log/glusterfs/"
>> has a lot of log files.
>>
>>
>> You can  find mount logs like this :  "directory_mounted".log inside
>> /var/log/glusterfs
>> There is some issue in your setup...check this log and share it here.
>>
>>
>> Sincerely,
>> Alexandr
>>
>> On Sat, Nov 19, 2016 at 11:16 AM, Saravanakumar Arumugam <
>> sarumuga at redhat.com> wrote:
>>
>>>
>>> On 11/19/2016 01:39 AM, Alexandr Porunov wrote:
>>>
>>>> Hello,
>>>>
>>>> I try to enable shared storage for Geo-Replication but I am not sure
>>>> that I do it properly.
>>>>
>>>> Here is what I do:
>>>> # gluster volume set all cluster.enable-shared-storage enable
>>>> volume set: success
>>>>
>>>> # mount -t glusterfs 127.0.0.1:gluster_shared_storage
>>>> /var/run/gluster/shared_storage
>>>> ERROR: Mount point does not exist
>>>> Please specify a mount point
>>>> Usage:
>>>> man 8 /sbin/mount.glusterfs
>>>>
>>>>
>>>> This error means /var/run/gluster/shared_storage directory does NOT
>>> exists.
>>>
>>> But, running the  command (gluster volume set all
>>> cluster.enable-shared-storage enable)
>>> should carry out the mounting automatically. (so, there is no need to
>>> manually mount).
>>>
>>> Check after running "gluster volume set all
>>> cluster.enable-shared-storage enable"
>>>     1. gluster volume info
>>>      2. glusterfs process started with volfile-id as
>>> gluster_shared_storage.
>>>
>>> Thanks,
>>> Saravana
>>>
>>>
>>
>>
>
>
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