[Gluster-users] Gluster 3.8.10 rebalance VMs corruption

Pranith Kumar Karampuri pkarampu at redhat.com
Thu Apr 27 11:03:35 UTC 2017


I am very positive about the two things I told you. These are the latest
things that happened for VM corruption with rebalance.

On Thu, Apr 27, 2017 at 4:30 PM, Gandalf Corvotempesta <
gandalf.corvotempesta at gmail.com> wrote:

> I think we are talking about a different bug.
>
> Il 27 apr 2017 12:58 PM, "Pranith Kumar Karampuri" <pkarampu at redhat.com>
> ha scritto:
>
>> I am not a DHT developer, so some of what I say could be a little wrong.
>> But this is what I gather.
>> I think they found 2 classes of bugs in dht
>> 1) Graceful fop failover when rebalance is in progress is missing for
>> some fops, that lead to VM pause.
>>
>> I see that https://review.gluster.org/17085 got merged on 24th on master
>> for this. I see patches are posted for 3.8.x for this one.
>>
>> 2) I think there is some work needs to be done for dht_[f]xattrop. I
>> believe this is the next step that is underway.
>>
>>
>> On Thu, Apr 27, 2017 at 12:13 PM, Gandalf Corvotempesta <
>> gandalf.corvotempesta at gmail.com> wrote:
>>
>>> Updates on this critical bug ?
>>>
>>> Il 18 apr 2017 8:24 PM, "Gandalf Corvotempesta" <
>>> gandalf.corvotempesta at gmail.com> ha scritto:
>>>
>>>> Any update ?
>>>> In addition, if this is a different bug but the "workflow" is the same
>>>> as the previous one, how is possible that fixing the previous bug
>>>> triggered this new one ?
>>>>
>>>> Is possible to have some details ?
>>>>
>>>> 2017-04-04 16:11 GMT+02:00 Krutika Dhananjay <kdhananj at redhat.com>:
>>>> > Nope. This is a different bug.
>>>> >
>>>> > -Krutika
>>>> >
>>>> > On Mon, Apr 3, 2017 at 5:03 PM, Gandalf Corvotempesta
>>>> > <gandalf.corvotempesta at gmail.com> wrote:
>>>> >>
>>>> >> This is a good news
>>>> >> Is this related to the previously fixed bug?
>>>> >>
>>>> >> Il 3 apr 2017 10:22 AM, "Krutika Dhananjay" <kdhananj at redhat.com> ha
>>>> >> scritto:
>>>> >>>
>>>> >>> So Raghavendra has an RCA for this issue.
>>>> >>>
>>>> >>> Copy-pasting his comment here:
>>>> >>>
>>>> >>> <RCA>
>>>> >>>
>>>> >>> Following is a rough algorithm of shard_writev:
>>>> >>>
>>>> >>> 1. Based on the offset, calculate the shards touched by current
>>>> write.
>>>> >>> 2. Look for inodes corresponding to these shard files in itable.
>>>> >>> 3. If one or more inodes are missing from itable, issue mknod for
>>>> >>> corresponding shard files and ignore EEXIST in cbk.
>>>> >>> 4. resume writes on respective shards.
>>>> >>>
>>>> >>> Now, imagine a write which falls to an existing "shard_file". For
>>>> the
>>>> >>> sake of discussion lets consider a distribute of three subvols -
>>>> s1, s2, s3
>>>> >>>
>>>> >>> 1. "shard_file" hashes to subvolume s2 and is present on s2
>>>> >>> 2. add a subvolume s4 and initiate a fix layout. The layout of
>>>> ".shard"
>>>> >>> is fixed to include s4 and hash ranges are changed.
>>>> >>> 3. write that touches "shard_file" is issued.
>>>> >>> 4. The inode for "shard_file" is not present in itable after a graph
>>>> >>> switch and features/shard issues an mknod.
>>>> >>> 5. With new layout of .shard, lets say "shard_file" hashes to s3 and
>>>> >>> mknod (shard_file) on s3 succeeds. But, the shard_file is already
>>>> present on
>>>> >>> s2.
>>>> >>>
>>>> >>> So, we have two files on two different subvols of dht representing
>>>> same
>>>> >>> shard and this will lead to corruption.
>>>> >>>
>>>> >>> </RCA>
>>>> >>>
>>>> >>> Raghavendra will be sending out a patch in DHT to fix this issue.
>>>> >>>
>>>> >>> -Krutika
>>>> >>>
>>>> >>>
>>>> >>> On Tue, Mar 28, 2017 at 11:49 PM, Pranith Kumar Karampuri
>>>> >>> <pkarampu at redhat.com> wrote:
>>>> >>>>
>>>> >>>>
>>>> >>>>
>>>> >>>> On Mon, Mar 27, 2017 at 11:29 PM, Mahdi Adnan <
>>>> mahdi.adnan at outlook.com>
>>>> >>>> wrote:
>>>> >>>>>
>>>> >>>>> Hi,
>>>> >>>>>
>>>> >>>>>
>>>> >>>>> Do you guys have any update regarding this issue ?
>>>> >>>>
>>>> >>>> I do not actively work on this issue so I do not have an accurate
>>>> >>>> update, but from what I heard from Krutika and Raghavendra(works
>>>> on DHT) is:
>>>> >>>> Krutika debugged initially and found that the issue seems more
>>>> likely to be
>>>> >>>> in DHT, Satheesaran who helped us recreate this issue in lab found
>>>> that just
>>>> >>>> fix-layout without rebalance also caused the corruption 1 out of 3
>>>> times.
>>>> >>>> Raghavendra came up with a possible RCA for why this can happen.
>>>> >>>> Raghavendra(CCed) would be the right person to provide accurate
>>>> update.
>>>> >>>>>
>>>> >>>>>
>>>> >>>>>
>>>> >>>>> --
>>>> >>>>>
>>>> >>>>> Respectfully
>>>> >>>>> Mahdi A. Mahdi
>>>> >>>>>
>>>> >>>>> ________________________________
>>>> >>>>> From: Krutika Dhananjay <kdhananj at redhat.com>
>>>> >>>>> Sent: Tuesday, March 21, 2017 3:02:55 PM
>>>> >>>>> To: Mahdi Adnan
>>>> >>>>> Cc: Nithya Balachandran; Gowdappa, Raghavendra; Susant Palai;
>>>> >>>>> gluster-users at gluster.org List
>>>> >>>>>
>>>> >>>>> Subject: Re: [Gluster-users] Gluster 3.8.10 rebalance VMs
>>>> corruption
>>>> >>>>>
>>>> >>>>> Hi,
>>>> >>>>>
>>>> >>>>> So it looks like Satheesaran managed to recreate this issue. We
>>>> will be
>>>> >>>>> seeking his help in debugging this. It will be easier that way.
>>>> >>>>>
>>>> >>>>> -Krutika
>>>> >>>>>
>>>> >>>>> On Tue, Mar 21, 2017 at 1:35 PM, Mahdi Adnan <
>>>> mahdi.adnan at outlook.com>
>>>> >>>>> wrote:
>>>> >>>>>>
>>>> >>>>>> Hello and thank you for your email.
>>>> >>>>>> Actually no, i didn't check the gfid of the vms.
>>>> >>>>>> If this will help, i can setup a new test cluster and get all
>>>> the data
>>>> >>>>>> you need.
>>>> >>>>>>
>>>> >>>>>> Get Outlook for Android
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> From: Nithya Balachandran
>>>> >>>>>> Sent: Monday, March 20, 20:57
>>>> >>>>>> Subject: Re: [Gluster-users] Gluster 3.8.10 rebalance VMs
>>>> corruption
>>>> >>>>>> To: Krutika Dhananjay
>>>> >>>>>> Cc: Mahdi Adnan, Gowdappa, Raghavendra, Susant Palai,
>>>> >>>>>> gluster-users at gluster.org List
>>>> >>>>>>
>>>> >>>>>> Hi,
>>>> >>>>>>
>>>> >>>>>> Do you know the GFIDs of the VM images which were corrupted?
>>>> >>>>>>
>>>> >>>>>> Regards,
>>>> >>>>>>
>>>> >>>>>> Nithya
>>>> >>>>>>
>>>> >>>>>> On 20 March 2017 at 20:37, Krutika Dhananjay <
>>>> kdhananj at redhat.com>
>>>> >>>>>> wrote:
>>>> >>>>>>
>>>> >>>>>> I looked at the logs.
>>>> >>>>>>
>>>> >>>>>> From the time the new graph (since the add-brick command you
>>>> shared
>>>> >>>>>> where bricks 41 through 44 are added) is switched to (line 3011
>>>> onwards in
>>>> >>>>>> nfs-gfapi.log), I see the following kinds of errors:
>>>> >>>>>>
>>>> >>>>>> 1. Lookups to a bunch of files failed with ENOENT on both
>>>> replicas
>>>> >>>>>> which protocol/client converts to ESTALE. I am guessing these
>>>> entries got
>>>> >>>>>> migrated to
>>>> >>>>>>
>>>> >>>>>> other subvolumes leading to 'No such file or directory' errors.
>>>> >>>>>>
>>>> >>>>>> DHT and thereafter shard get the same error code and log the
>>>> >>>>>> following:
>>>> >>>>>>
>>>> >>>>>>  0 [2017-03-17 14:04:26.353444] E [MSGID: 109040]
>>>> >>>>>> [dht-helper.c:1198:dht_migration_complete_check_task]
>>>> 17-vmware2-dht:
>>>> >>>>>> <gfid:a68ce411-e381-46a3-93cd-d2af6a7c3532>: failed     to
>>>> lookup the file
>>>> >>>>>> on vmware2-dht [Stale file handle]
>>>> >>>>>>   1 [2017-03-17 14:04:26.353528] E [MSGID: 133014]
>>>> >>>>>> [shard.c:1253:shard_common_stat_cbk] 17-vmware2-shard: stat
>>>> failed:
>>>> >>>>>> a68ce411-e381-46a3-93cd-d2af6a7c3532 [Stale file handle]
>>>> >>>>>>
>>>> >>>>>> which is fine.
>>>> >>>>>>
>>>> >>>>>> 2. The other kind are from AFR logging of possible split-brain
>>>> which I
>>>> >>>>>> suppose are harmless too.
>>>> >>>>>> [2017-03-17 14:23:36.968883] W [MSGID: 108008]
>>>> >>>>>> [afr-read-txn.c:228:afr_read_txn] 17-vmware2-replicate-13:
>>>> Unreadable
>>>> >>>>>> subvolume -1 found with event generation 2 for gfid
>>>> >>>>>> 74d49288-8452-40d4-893e-ff4672557ff9. (Possible split-brain)
>>>> >>>>>>
>>>> >>>>>> Since you are saying the bug is hit only on VMs that are
>>>> undergoing IO
>>>> >>>>>> while rebalance is running (as opposed to those that remained
>>>> powered off),
>>>> >>>>>>
>>>> >>>>>> rebalance + IO could be causing some issues.
>>>> >>>>>>
>>>> >>>>>> CC'ing DHT devs
>>>> >>>>>>
>>>> >>>>>> Raghavendra/Nithya/Susant,
>>>> >>>>>>
>>>> >>>>>> Could you take a look?
>>>> >>>>>>
>>>> >>>>>> -Krutika
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> On Sun, Mar 19, 2017 at 4:55 PM, Mahdi Adnan <
>>>> mahdi.adnan at outlook.com>
>>>> >>>>>> wrote:
>>>> >>>>>>
>>>> >>>>>> Thank you for your email mate.
>>>> >>>>>>
>>>> >>>>>> Yes, im aware of this but, to save costs i chose replica 2, this
>>>> >>>>>> cluster is all flash.
>>>> >>>>>>
>>>> >>>>>> In version 3.7.x i had issues with ping timeout, if one hosts
>>>> went
>>>> >>>>>> down for few seconds the whole cluster hangs and become
>>>> unavailable, to
>>>> >>>>>> avoid this i adjusted the ping timeout to 5 seconds.
>>>> >>>>>>
>>>> >>>>>> As for choosing Ganesha over gfapi, VMWare does not support
>>>> Gluster
>>>> >>>>>> (FUSE or gfapi) im stuck with NFS for this volume.
>>>> >>>>>>
>>>> >>>>>> The other volume is mounted using gfapi in oVirt cluster.
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> --
>>>> >>>>>>
>>>> >>>>>> Respectfully
>>>> >>>>>> Mahdi A. Mahdi
>>>> >>>>>>
>>>> >>>>>> From: Krutika Dhananjay <kdhananj at redhat.com>
>>>> >>>>>> Sent: Sunday, March 19, 2017 2:01:49 PM
>>>> >>>>>>
>>>> >>>>>> To: Mahdi Adnan
>>>> >>>>>> Cc: gluster-users at gluster.org
>>>> >>>>>> Subject: Re: [Gluster-users] Gluster 3.8.10 rebalance VMs
>>>> corruption
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> While I'm still going through the logs, just wanted to point out
>>>> a
>>>> >>>>>> couple of things:
>>>> >>>>>>
>>>> >>>>>> 1. It is recommended that you use 3-way replication (replica
>>>> count 3)
>>>> >>>>>> for VM store use case
>>>> >>>>>>
>>>> >>>>>> 2. network.ping-timeout at 5 seconds is way too low. Please
>>>> change it
>>>> >>>>>> to 30.
>>>> >>>>>>
>>>> >>>>>> Is there any specific reason for using NFS-Ganesha over
>>>> gfapi/FUSE?
>>>> >>>>>>
>>>> >>>>>> Will get back with anything else I might find or more questions
>>>> if I
>>>> >>>>>> have any.
>>>> >>>>>>
>>>> >>>>>> -Krutika
>>>> >>>>>>
>>>> >>>>>> On Sun, Mar 19, 2017 at 2:36 PM, Mahdi Adnan <
>>>> mahdi.adnan at outlook.com>
>>>> >>>>>> wrote:
>>>> >>>>>>
>>>> >>>>>> Thanks mate,
>>>> >>>>>>
>>>> >>>>>> Kindly, check the attachment.
>>>> >>>>>>
>>>> >>>>>> --
>>>> >>>>>>
>>>> >>>>>> Respectfully
>>>> >>>>>> Mahdi A. Mahdi
>>>> >>>>>>
>>>> >>>>>> From: Krutika Dhananjay <kdhananj at redhat.com>
>>>> >>>>>> Sent: Sunday, March 19, 2017 10:00:22 AM
>>>> >>>>>>
>>>> >>>>>> To: Mahdi Adnan
>>>> >>>>>> Cc: gluster-users at gluster.org
>>>> >>>>>> Subject: Re: [Gluster-users] Gluster 3.8.10 rebalance VMs
>>>> corruption
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> In that case could you share the ganesha-gfapi logs?
>>>> >>>>>>
>>>> >>>>>> -Krutika
>>>> >>>>>>
>>>> >>>>>> On Sun, Mar 19, 2017 at 12:13 PM, Mahdi Adnan
>>>> >>>>>> <mahdi.adnan at outlook.com> wrote:
>>>> >>>>>>
>>>> >>>>>> I have two volumes, one is mounted using libgfapi for ovirt
>>>> mount, the
>>>> >>>>>> other one is exported via NFS-Ganesha for VMWare which is the
>>>> one im testing
>>>> >>>>>> now.
>>>> >>>>>>
>>>> >>>>>> --
>>>> >>>>>>
>>>> >>>>>> Respectfully
>>>> >>>>>> Mahdi A. Mahdi
>>>> >>>>>>
>>>> >>>>>> From: Krutika Dhananjay <kdhananj at redhat.com>
>>>> >>>>>> Sent: Sunday, March 19, 2017 8:02:19 AM
>>>> >>>>>>
>>>> >>>>>> To: Mahdi Adnan
>>>> >>>>>> Cc: gluster-users at gluster.org
>>>> >>>>>> Subject: Re: [Gluster-users] Gluster 3.8.10 rebalance VMs
>>>> corruption
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> On Sat, Mar 18, 2017 at 10:36 PM, Mahdi Adnan
>>>> >>>>>> <mahdi.adnan at outlook.com> wrote:
>>>> >>>>>>
>>>> >>>>>> Kindly, check the attached new log file, i dont know if it's
>>>> helpful
>>>> >>>>>> or not but, i couldn't find the log with the name you just
>>>> described.
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> No. Are you using FUSE or libgfapi for accessing the volume? Or
>>>> is it
>>>> >>>>>> NFS?
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> -Krutika
>>>> >>>>>>
>>>> >>>>>> --
>>>> >>>>>>
>>>> >>>>>> Respectfully
>>>> >>>>>> Mahdi A. Mahdi
>>>> >>>>>>
>>>> >>>>>> From: Krutika Dhananjay <kdhananj at redhat.com>
>>>> >>>>>> Sent: Saturday, March 18, 2017 6:10:40 PM
>>>> >>>>>>
>>>> >>>>>> To: Mahdi Adnan
>>>> >>>>>> Cc: gluster-users at gluster.org
>>>> >>>>>> Subject: Re: [Gluster-users] Gluster 3.8.10 rebalance VMs
>>>> corruption
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> mnt-disk11-vmware2.log seems like a brick log. Could you attach
>>>> the
>>>> >>>>>> fuse mount logs? It should be right under /var/log/glusterfs/
>>>> directory
>>>> >>>>>>
>>>> >>>>>> named after the mount point name, only hyphenated.
>>>> >>>>>>
>>>> >>>>>> -Krutika
>>>> >>>>>>
>>>> >>>>>> On Sat, Mar 18, 2017 at 7:27 PM, Mahdi Adnan <
>>>> mahdi.adnan at outlook.com>
>>>> >>>>>> wrote:
>>>> >>>>>>
>>>> >>>>>> Hello Krutika,
>>>> >>>>>>
>>>> >>>>>> Kindly, check the attached logs.
>>>> >>>>>>
>>>> >>>>>> --
>>>> >>>>>>
>>>> >>>>>> Respectfully
>>>> >>>>>> Mahdi A. Mahdi
>>>> >>>>>>
>>>> >>>>>> From: Krutika Dhananjay <kdhananj at redhat.com>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> Sent: Saturday, March 18, 2017 3:29:03 PM
>>>> >>>>>> To: Mahdi Adnan
>>>> >>>>>> Cc: gluster-users at gluster.org
>>>> >>>>>> Subject: Re: [Gluster-users] Gluster 3.8.10 rebalance VMs
>>>> corruption
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> Hi Mahdi,
>>>> >>>>>>
>>>> >>>>>> Could you attach mount, brick and rebalance logs?
>>>> >>>>>>
>>>> >>>>>> -Krutika
>>>> >>>>>>
>>>> >>>>>> On Sat, Mar 18, 2017 at 12:14 AM, Mahdi Adnan
>>>> >>>>>> <mahdi.adnan at outlook.com> wrote:
>>>> >>>>>>
>>>> >>>>>> Hi,
>>>> >>>>>>
>>>> >>>>>> I have upgraded to Gluster 3.8.10 today and ran the add-brick
>>>> >>>>>> procedure in a volume contains few VMs.
>>>> >>>>>>
>>>> >>>>>> After the completion of rebalance, i have rebooted the VMs, some
>>>> of
>>>> >>>>>> ran just fine, and others just crashed.
>>>> >>>>>>
>>>> >>>>>> Windows boot to recovery mode and Linux throw xfs errors and
>>>> does not
>>>> >>>>>> boot.
>>>> >>>>>>
>>>> >>>>>> I ran the test again and it happened just as the first one, but
>>>> i have
>>>> >>>>>> noticed only VMs doing disk IOs are affected by this bug.
>>>> >>>>>>
>>>> >>>>>> The VMs in power off mode started fine and even md5 of the disk
>>>> file
>>>> >>>>>> did not change after the rebalance.
>>>> >>>>>>
>>>> >>>>>> anyone else can confirm this ?
>>>> >>>>>>
>>>> >>>>>> Volume info:
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> Volume Name: vmware2
>>>> >>>>>>
>>>> >>>>>> Type: Distributed-Replicate
>>>> >>>>>>
>>>> >>>>>> Volume ID: 02328d46-a285-4533-aa3a-fb9bfeb688bf
>>>> >>>>>>
>>>> >>>>>> Status: Started
>>>> >>>>>>
>>>> >>>>>> Snapshot Count: 0
>>>> >>>>>>
>>>> >>>>>> Number of Bricks: 22 x 2 = 44
>>>> >>>>>>
>>>> >>>>>> Transport-type: tcp
>>>> >>>>>>
>>>> >>>>>> Bricks:
>>>> >>>>>>
>>>> >>>>>> Brick1: gluster01:/mnt/disk1/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick2: gluster03:/mnt/disk1/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick3: gluster02:/mnt/disk1/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick4: gluster04:/mnt/disk1/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick5: gluster01:/mnt/disk2/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick6: gluster03:/mnt/disk2/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick7: gluster02:/mnt/disk2/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick8: gluster04:/mnt/disk2/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick9: gluster01:/mnt/disk3/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick10: gluster03:/mnt/disk3/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick11: gluster02:/mnt/disk3/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick12: gluster04:/mnt/disk3/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick13: gluster01:/mnt/disk4/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick14: gluster03:/mnt/disk4/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick15: gluster02:/mnt/disk4/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick16: gluster04:/mnt/disk4/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick17: gluster01:/mnt/disk5/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick18: gluster03:/mnt/disk5/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick19: gluster02:/mnt/disk5/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick20: gluster04:/mnt/disk5/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick21: gluster01:/mnt/disk6/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick22: gluster03:/mnt/disk6/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick23: gluster02:/mnt/disk6/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick24: gluster04:/mnt/disk6/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick25: gluster01:/mnt/disk7/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick26: gluster03:/mnt/disk7/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick27: gluster02:/mnt/disk7/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick28: gluster04:/mnt/disk7/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick29: gluster01:/mnt/disk8/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick30: gluster03:/mnt/disk8/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick31: gluster02:/mnt/disk8/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick32: gluster04:/mnt/disk8/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick33: gluster01:/mnt/disk9/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick34: gluster03:/mnt/disk9/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick35: gluster02:/mnt/disk9/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick36: gluster04:/mnt/disk9/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick37: gluster01:/mnt/disk10/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick38: gluster03:/mnt/disk10/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick39: gluster02:/mnt/disk10/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick40: gluster04:/mnt/disk10/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick41: gluster01:/mnt/disk11/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick42: gluster03:/mnt/disk11/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick43: gluster02:/mnt/disk11/vmware2
>>>> >>>>>>
>>>> >>>>>> Brick44: gluster04:/mnt/disk11/vmware2
>>>> >>>>>>
>>>> >>>>>> Options Reconfigured:
>>>> >>>>>>
>>>> >>>>>> cluster.server-quorum-type: server
>>>> >>>>>>
>>>> >>>>>> nfs.disable: on
>>>> >>>>>>
>>>> >>>>>> performance.readdir-ahead: on
>>>> >>>>>>
>>>> >>>>>> transport.address-family: inet
>>>> >>>>>>
>>>> >>>>>> performance.quick-read: off
>>>> >>>>>>
>>>> >>>>>> performance.read-ahead: off
>>>> >>>>>>
>>>> >>>>>> performance.io-cache: off
>>>> >>>>>>
>>>> >>>>>> performance.stat-prefetch: off
>>>> >>>>>>
>>>> >>>>>> cluster.eager-lock: enable
>>>> >>>>>>
>>>> >>>>>> network.remote-dio: enable
>>>> >>>>>>
>>>> >>>>>> features.shard: on
>>>> >>>>>>
>>>> >>>>>> cluster.data-self-heal-algorithm: full
>>>> >>>>>>
>>>> >>>>>> features.cache-invalidation: on
>>>> >>>>>>
>>>> >>>>>> ganesha.enable: on
>>>> >>>>>>
>>>> >>>>>> features.shard-block-size: 256MB
>>>> >>>>>>
>>>> >>>>>> client.event-threads: 2
>>>> >>>>>>
>>>> >>>>>> server.event-threads: 2
>>>> >>>>>>
>>>> >>>>>> cluster.favorite-child-policy: size
>>>> >>>>>>
>>>> >>>>>> storage.build-pgfid: off
>>>> >>>>>>
>>>> >>>>>> network.ping-timeout: 5
>>>> >>>>>>
>>>> >>>>>> cluster.enable-shared-storage: enable
>>>> >>>>>>
>>>> >>>>>> nfs-ganesha: enable
>>>> >>>>>>
>>>> >>>>>> cluster.server-quorum-ratio: 51%
>>>> >>>>>>
>>>> >>>>>> Adding bricks:
>>>> >>>>>>
>>>> >>>>>> gluster volume add-brick vmware2 replica 2
>>>> >>>>>> gluster01:/mnt/disk11/vmware2 gluster03:/mnt/disk11/vmware2
>>>> >>>>>> gluster02:/mnt/disk11/vmware2 gluster04:/mnt/disk11/vmware2
>>>> >>>>>>
>>>> >>>>>> starting fix layout:
>>>> >>>>>>
>>>> >>>>>> gluster volume rebalance vmware2 fix-layout start
>>>> >>>>>>
>>>> >>>>>> Starting rebalance:
>>>> >>>>>>
>>>> >>>>>> gluster volume rebalance vmware2  start
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>> --
>>>> >>>>>>
>>>> >>>>>> Respectfully
>>>> >>>>>> Mahdi A. Mahdi
>>>> >>>>>>
>>>> >>>>>> _______________________________________________
>>>> >>>>>> Gluster-users mailing list
>>>> >>>>>> Gluster-users at gluster.org
>>>> >>>>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>>
>>>> >>>>>
>>>> >>>>>
>>>> >>>>> _______________________________________________
>>>> >>>>> Gluster-users mailing list
>>>> >>>>> Gluster-users at gluster.org
>>>> >>>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>>> >>>>
>>>> >>>>
>>>> >>>>
>>>> >>>>
>>>> >>>> --
>>>> >>>> Pranith
>>>> >>>
>>>> >>>
>>>> >>>
>>>> >>> _______________________________________________
>>>> >>> Gluster-users mailing list
>>>> >>> Gluster-users at gluster.org
>>>> >>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>>> >
>>>> >
>>>>
>>>
>>
>>
>> --
>> Pranith
>>
>


-- 
Pranith
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