[Gluster-users] about split-brain

[Roman]

So try your tests again, but wait for synchronization first. You can check
the state of files on servers with getfattr -d -m. -e hex
/path-to-file-on-gluster-server
both should return 0x000000000000000000000000


2014-08-08 9:11 GMT+03:00 hwh at sangfor.com <hwh at sangfor.com>:

> Yes, I do not wait for synchronization to complete.
>
> ------------------------------
> hwh at sangfor.com
>
>
> *From:* Roman <romeo.r at gmail.com>
> *Date:* 2014-08-08 13:53
> *To:* hwh at sangfor.com
> *CC:* gluster-users <gluster-users at gluster.org>
> *Subject:* Re: [Gluster-users] about split-brain
> Hello,
>
> Did you wait for synchronization to complete before plugging second server
> off? Usually it need 10-15 minutes. Sometimes faster.
>
>
> 2014-08-08 5:19 GMT+03:00 hwh at sangfor.com <hwh at sangfor.com>:
>
>>  hi:
>>
>> I have a problem about split-brain, details as below:
>>
>> PC1 and PC2 is AFR, stored a file 1.txt
>>
>> 1. write "123" to 1.txt, then 1.txt in pc1 is same with 1.txt in PC2,
>> content is "123"
>>
>> 2. PC1  network disconnect, write "45" to 1.txt, then  content of 1.txt
>> in pc1 is "123",
>>
>>    content of 1.txt in pc2 is "12345"
>>
>> 3. PC2  network disconnect, but PC1 network is good, write "67" to 1.txt,
>>  then  content of 1.txt in pc1 is "12367",
>>
>>    content of 1.txt in pc1 is "12345"
>>
>> 4. so split brain occur
>>
>>
>> how glusterfs avoid this? Have some ways to solve? this is my questions.
>> thank you
>>
>> ------------------------------
>> hwh at sangfor.com
>>
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://supercolony.gluster.org/mailman/listinfo/gluster-users
>>
>
>
>
> --
> Best regards,
> Roman.
>
>


-- 
Best regards,
Roman.
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