[Gluster-users] Getting glusterfs to expand volume size to brick size
Atin Mukherjee
amukherj at redhat.com
Tue Apr 17 16:59:38 UTC 2018
On Tue, 17 Apr 2018 at 10:06, Nithya Balachandran <nbalacha at redhat.com>
wrote:
> That might be the reason. Perhaps the volfiles were not regenerated after
> upgrading to the version with the fix.
>
Bumping up the op-version is necessary in this case as (AFAIK) the code was
handling this based on the op-version check.
>
> There is a workaround detailed in [2] for the time being (you will need to
> copy the shell script into the correct directory for your Gluster release).
>
>
> [2] https://bugzilla.redhat.com/show_bug.cgi?id=1517260#c19
>
>
>
> On 17 April 2018 at 09:58, Artem Russakovskii <archon810 at gmail.com> wrote:
>
>> To clarify, I was on 3.13.2 previously, recently updated to 4.0.1, and
>> the bug seems to persist in 4.0.1.
>>
>>
>> Sincerely,
>> Artem
>>
>> --
>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>> <http://www.apkmirror.com/>, Illogical Robot LLC
>> beerpla.net | +ArtemRussakovskii
>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>> <http://twitter.com/ArtemR>
>>
>> On Mon, Apr 16, 2018 at 9:27 PM, Artem Russakovskii <archon810 at gmail.com>
>> wrote:
>>
>>> pylon:/var/lib/glusterd/vols/dev_apkmirror_data # ack shared-brick-count
>>> dev_apkmirror_data.pylon.mnt-pylon_block3-dev_apkmirror_data.vol
>>> 3: option shared-brick-count 3
>>>
>>> dev_apkmirror_data.pylon.mnt-pylon_block2-dev_apkmirror_data.vol
>>> 3: option shared-brick-count 3
>>>
>>> dev_apkmirror_data.pylon.mnt-pylon_block1-dev_apkmirror_data.vol
>>> 3: option shared-brick-count 3
>>>
>>>
>>> Sincerely,
>>> Artem
>>>
>>> --
>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>> beerpla.net | +ArtemRussakovskii
>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>> <http://twitter.com/ArtemR>
>>>
>>> On Mon, Apr 16, 2018 at 9:22 PM, Nithya Balachandran <
>>> nbalacha at redhat.com> wrote:
>>>
>>>> Hi Artem,
>>>>
>>>> Was the volume size correct before the bricks were expanded?
>>>>
>>>> This sounds like [1] but that should have been fixed in 4.0.0. Can you
>>>> let us know the values of shared-brick-count in the files in
>>>> /var/lib/glusterd/vols/dev_apkmirror_data/ ?
>>>>
>>>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1541880
>>>>
>>>> On 17 April 2018 at 05:17, Artem Russakovskii <archon810 at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi Nithya,
>>>>>
>>>>> I'm on Gluster 4.0.1.
>>>>>
>>>>> I don't think the bricks were smaller before - if they were, maybe
>>>>> 20GB because Linode's minimum is 20GB, then I extended them to 25GB,
>>>>> resized with resize2fs as instructed, and rebooted many times over since.
>>>>> Yet, gluster refuses to see the full disk size.
>>>>>
>>>>> Here's the status detail output:
>>>>>
>>>>> gluster volume status dev_apkmirror_data detail
>>>>> Status of volume: dev_apkmirror_data
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Brick : Brick pylon:/mnt/pylon_block1/dev_apkmirror_data
>>>>> TCP Port : 49152
>>>>> RDMA Port : 0
>>>>> Online : Y
>>>>> Pid : 1263
>>>>> File System : ext4
>>>>> Device : /dev/sdd
>>>>> Mount Options : rw,relatime,data=ordered
>>>>> Inode Size : 256
>>>>> Disk Space Free : 23.0GB
>>>>> Total Disk Space : 24.5GB
>>>>> Inode Count : 1638400
>>>>> Free Inodes : 1625429
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Brick : Brick pylon:/mnt/pylon_block2/dev_apkmirror_data
>>>>> TCP Port : 49153
>>>>> RDMA Port : 0
>>>>> Online : Y
>>>>> Pid : 1288
>>>>> File System : ext4
>>>>> Device : /dev/sdc
>>>>> Mount Options : rw,relatime,data=ordered
>>>>> Inode Size : 256
>>>>> Disk Space Free : 24.0GB
>>>>> Total Disk Space : 25.5GB
>>>>> Inode Count : 1703936
>>>>> Free Inodes : 1690965
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> Brick : Brick pylon:/mnt/pylon_block3/dev_apkmirror_data
>>>>> TCP Port : 49154
>>>>> RDMA Port : 0
>>>>> Online : Y
>>>>> Pid : 1313
>>>>> File System : ext4
>>>>> Device : /dev/sde
>>>>> Mount Options : rw,relatime,data=ordered
>>>>> Inode Size : 256
>>>>> Disk Space Free : 23.0GB
>>>>> Total Disk Space : 24.5GB
>>>>> Inode Count : 1638400
>>>>> Free Inodes : 1625433
>>>>>
>>>>>
>>>>>
>>>>> What's interesting here is that the gluster volume size is exactly 1/3
>>>>> of the total (8357M * 3 = 25071M). Yet, each block device is separate, and
>>>>> the total storage available is 25071M on each brick.
>>>>>
>>>>> The fstab is as follows:
>>>>> /dev/disk/by-id/scsi-0Linode_Volume_pylon_block1 /mnt/pylon_block1
>>>>> ext4 defaults 0 2
>>>>> /dev/disk/by-id/scsi-0Linode_Volume_pylon_block2 /mnt/pylon_block2
>>>>> ext4 defaults 0 2
>>>>> /dev/disk/by-id/scsi-0Linode_Volume_pylon_block3 /mnt/pylon_block3
>>>>> ext4 defaults 0 2
>>>>>
>>>>> localhost:/dev_apkmirror_data /mnt/dev_apkmirror_data1 glusterfs
>>>>> defaults,_netdev,fopen-keep-cache,direct-io-mode=enable 0 0
>>>>> localhost:/dev_apkmirror_data /mnt/dev_apkmirror_data2 glusterfs
>>>>> defaults,_netdev,fopen-keep-cache,direct-io-mode=enable 0 0
>>>>> localhost:/dev_apkmirror_data /mnt/dev_apkmirror_data3 glusterfs
>>>>> defaults,_netdev,fopen-keep-cache,direct-io-mode=enable 0 0
>>>>> localhost:/dev_apkmirror_data /mnt/dev_apkmirror_data_ganesha
>>>>> nfs4 defaults,_netdev,bg,intr,soft,timeo=5,retrans=5,actimeo=10,retry=5 0 0
>>>>>
>>>>> The latter entry is for an nfs ganesha test, in case it matters
>>>>> (which, btw, fails miserably with all kinds of stability issues about
>>>>> broken pipes).
>>>>>
>>>>> Note: this is a test server, so all 3 bricks are attached and mounted
>>>>> on the same server.
>>>>>
>>>>>
>>>>> Sincerely,
>>>>> Artem
>>>>>
>>>>> --
>>>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>> beerpla.net | +ArtemRussakovskii
>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>> <http://twitter.com/ArtemR>
>>>>>
>>>>> On Sun, Apr 15, 2018 at 10:56 PM, Nithya Balachandran <
>>>>> nbalacha at redhat.com> wrote:
>>>>>
>>>>>> What version of Gluster are you running? Were the bricks smaller
>>>>>> earlier?
>>>>>>
>>>>>> Regards,
>>>>>> Nithya
>>>>>>
>>>>>> On 15 April 2018 at 00:09, Artem Russakovskii <archon810 at gmail.com>
>>>>>> wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> I have a 3-brick replicate volume, but for some reason I can't get
>>>>>>> it to expand to the size of the bricks. The bricks are 25GB, but even after
>>>>>>> multiple gluster restarts and remounts, the volume is only about 8GB.
>>>>>>>
>>>>>>> I believed I could always extend the bricks (we're using Linode
>>>>>>> block storage, which allows extending block devices after they're created),
>>>>>>> and gluster would see the newly available space and extend to use it.
>>>>>>>
>>>>>>> Multiple Google searches, and I'm still nowhere. Any ideas?
>>>>>>>
>>>>>>> df | ack "block|data"
>>>>>>> Filesystem
>>>>>>> 1M-blocks Used Available Use% Mounted on
>>>>>>> /dev/sdd
>>>>>>> 25071M 1491M 22284M 7% /mnt/pylon_block1
>>>>>>> /dev/sdc
>>>>>>> 26079M 1491M 23241M 7% /mnt/pylon_block2
>>>>>>> /dev/sde
>>>>>>> 25071M 1491M 22315M 7% /mnt/pylon_block3
>>>>>>> localhost:/dev_apkmirror_data
>>>>>>> 8357M 581M 7428M 8% /mnt/dev_apkmirror_data1
>>>>>>> localhost:/dev_apkmirror_data
>>>>>>> 8357M 581M 7428M 8% /mnt/dev_apkmirror_data2
>>>>>>> localhost:/dev_apkmirror_data
>>>>>>> 8357M 581M 7428M 8% /mnt/dev_apkmirror_data3
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> gluster volume info
>>>>>>>
>>>>>>> Volume Name: dev_apkmirror_data
>>>>>>> Type: Replicate
>>>>>>> Volume ID: cd5621ee-7fab-401b-b720-08863717ed56
>>>>>>> Status: Started
>>>>>>> Snapshot Count: 0
>>>>>>> Number of Bricks: 1 x 3 = 3
>>>>>>> Transport-type: tcp
>>>>>>> Bricks:
>>>>>>> Brick1: pylon:/mnt/pylon_block1/dev_apkmirror_data
>>>>>>> Brick2: pylon:/mnt/pylon_block2/dev_apkmirror_data
>>>>>>> Brick3: pylon:/mnt/pylon_block3/dev_apkmirror_data
>>>>>>> Options Reconfigured:
>>>>>>> disperse.eager-lock: off
>>>>>>> cluster.lookup-unhashed: auto
>>>>>>> cluster.read-hash-mode: 0
>>>>>>> performance.strict-o-direct: on
>>>>>>> cluster.shd-max-threads: 12
>>>>>>> performance.nl-cache-timeout: 600
>>>>>>> performance.nl-cache: on
>>>>>>> cluster.quorum-count: 1
>>>>>>> cluster.quorum-type: fixed
>>>>>>> network.ping-timeout: 5
>>>>>>> network.remote-dio: enable
>>>>>>> performance.rda-cache-limit: 256MB
>>>>>>> performance.parallel-readdir: on
>>>>>>> network.inode-lru-limit: 500000
>>>>>>> performance.md-cache-timeout: 600
>>>>>>> performance.cache-invalidation: on
>>>>>>> performance.stat-prefetch: on
>>>>>>> features.cache-invalidation-timeout: 600
>>>>>>> features.cache-invalidation: on
>>>>>>> performance.io-thread-count: 32
>>>>>>> server.event-threads: 4
>>>>>>> client.event-threads: 4
>>>>>>> performance.read-ahead: off
>>>>>>> cluster.lookup-optimize: on
>>>>>>> performance.client-io-threads: on
>>>>>>> performance.cache-size: 1GB
>>>>>>> transport.address-family: inet
>>>>>>> performance.readdir-ahead: on
>>>>>>> nfs.disable: on
>>>>>>> cluster.readdir-optimize: on
>>>>>>>
>>>>>>>
>>>>>>> Thank you.
>>>>>>>
>>>>>>> Sincerely,
>>>>>>> Artem
>>>>>>>
>>>>>>> --
>>>>>>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>>>>>>> <http://www.apkmirror.com/>, Illogical Robot LLC
>>>>>>> beerpla.net | +ArtemRussakovskii
>>>>>>> <https://plus.google.com/+ArtemRussakovskii> | @ArtemR
>>>>>>> <http://twitter.com/ArtemR>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Gluster-users mailing list
>>>>>>> Gluster-users at gluster.org
>>>>>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
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--
- Atin (atinm)
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