[Gluster-devel] Gluster-devel Digest, Vol 14, Issue 56
余长财
yu.changcai at 99cloud.net
Fri May 15 01:28:23 UTC 2015
dear all，
Recently, I have a test to rebalance, I seem to be a bug.
I used the cluster version is v3.6.2 tag.
The case I did is below.
1. create a volume with dht number 2
2. write a few files in the volume
3. add-brick to the volume
4. rebalance fix-layout
5. find a file which would be rebalance to other brick
6. continuing write something to the file
7. exec the rebalance to move file to where they should be
After the rebalance, we saw something has been lost when it were write during the rebalance.
Could anyone help me with it?
> On May 14, 2015, at 8:00 PM, gluster-devel-request at gluster.org wrote:
>
>
> Send Gluster-devel mailing list submissions to
> gluster-devel at gluster.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://www.gluster.org/mailman/listinfo/gluster-devel
> or, via email, send a message with subject or body 'help' to
> gluster-devel-request at gluster.org
>
> You can reach the person managing the list at
> gluster-devel-owner at gluster.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Gluster-devel digest..."
>
>
> Today's Topics:
>
> 1. Re: Rebalance failure wrt trashcan (Nithya Balachandran)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 14 May 2015 07:08:46 -0400 (EDT)
> From: Nithya Balachandran <nbalacha at redhat.com>
> To: SATHEESARAN <sasundar at redhat.com>
> Cc: Gluster Devel <gluster-devel at gluster.org>
> Subject: Re: [Gluster-devel] Rebalance failure wrt trashcan
> Message-ID:
> <786595040.14130930.1431601726039.JavaMail.zimbra at redhat.com>
> Content-Type: text/plain; charset=utf-8
>
> The rebalance failure is due to the interaction of the lookup-unhashed changes and rebalance local crawl changes. I will send a patch shortly.
>
> Regards,
> Nithya
>
>
>
>
> ----- SATHEESARAN <sasundar at redhat.com> wrote:
>> On 05/14/2015 12:55 PM, Vijay Bellur wrote:
>>> On 05/14/2015 09:00 AM, SATHEESARAN wrote:
>>>> Hi All,
>>>>
>>>> I was using glusterfs-3.7 beta2 build (
>>>> glusterfs-3.7.0beta2-0.0.el6.x86_64 )
>>>> I have seen rebalance failure in one of the node.
>>>>
>>>> [2015-05-14 12:17:03.695156] E
>>>> [dht-rebalance.c:2368:gf_defrag_settle_hash] 0-vmstore-dht: fix layout
>>>> on /.trashcan/internal_op failed
>>>> [2015-05-14 12:17:03.695636] E [MSGID: 109016]
>>>> [dht-rebalance.c:2528:gf_defrag_fix_layout] 0-vmstore-dht: Fix layout
>>>> failed for /.trashcan
>>>>
>>>> Does it have any impact ?
>>>>
>>>
>>> I don't think there should be any impact due to this. rebalance should
>>> continue fine without any problems. Do let us know if you observe the
>>> behavior to be otherwise.
>>>
>>> -Vijay
>> I tested the same functionally and I don't find any impact as such, but
>> the 'gluster volume status <vol-name>' reports the rebalance as a FAILURE.
>> Any tool ( for example oVirt ), consuming the output from 'gluster
>> volume status <vol> --xml' would report the rebalance operation as FAILURE
>>
>> [root@ ~]# gluster volume rebalance vmstore start
>> volume rebalance: vmstore: success: Rebalance on vmstore has been
>> started successfully. Use rebalance status command to check status of
>> the rebalance process.
>> ID: 68a12fc9-acd5-4f24-ba2d-bfc070ad5668
>>
>> [root@~]# gluster volume rebalance vmstore status
>> Node Rebalanced-files size
>> scanned failures skipped status run time in secs
>> --------- ----------- -----------
>> ----------- ----------- ----------- ------------ --------------
>> localhost 0
>> 0Bytes 2 0 0 completed
>> 0.00
>> 10.70.37.58 0
>> 0Bytes 0 3 0 failed 0.00
>> volume rebalance: vmstore: success:
>>
>> [root@~]# gluster volume status vmstore
>> Status of volume: vmstore
>> Gluster process TCP Port RDMA Port Online Pid
>> ------------------------------------------------------------------------------
>> ......
>>
>> Task Status of Volume vmstore
>> ------------------------------------------------------------------------------
>> Task : Rebalance
>> ID : 68a12fc9-acd5-4f24-ba2d-bfc070ad5668
>> Status : failed
>>
>> Snip from --xml tasks :
>> <tasks>
>> <task>
>> <type>Rebalance</type>
>> <id>68a12fc9-acd5-4f24-ba2d-bfc070ad5668</id>
>> <status>4</status>
>> <statusStr>failed</statusStr>
>> </task>
>> </tasks>
>>
>> Even this is the case with remove-brick with data migration too
>>
>> -- sas
>>
>> _______________________________________________
>> Gluster-devel mailing list
>> Gluster-devel at gluster.org
>> http://www.gluster.org/mailman/listinfo/gluster-devel
>
>
>
> ------------------------------
>
> _______________________________________________
> Gluster-devel mailing list
> Gluster-devel at gluster.org
> http://www.gluster.org/mailman/listinfo/gluster-devel
>
>
> End of Gluster-devel Digest, Vol 14, Issue 56
> *********************************************
>
>
—————————
余长财 技术部
浙江九州云信息科技有限公司
地址：上海市卢湾区局门路427号1号楼206室
网址：http://www.99cloud.net <http://www.99cloud.netm/>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.gluster.org/pipermail/gluster-devel/attachments/20150515/d61652b6/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 8880_???-????11(09-29-10-15-06).png
Type: image/png
Size: 8880 bytes
Desc: not available
URL: <http://www.gluster.org/pipermail/gluster-devel/attachments/20150515/d61652b6/attachment-0001.png>
More information about the Gluster-devel
mailing list