Personally I would call it SPOF (single point of failure) and you should take care of it, when you work with some HA software. HA requires not only software, but hardware HA (double switches, power sources etc). But, maybe you will have some help from devs for this.
2014-08-08 9:44 GMT+03:00 [email protected] <[email protected]>: > because if the network is not stable, this will be ocurr and file can't > open due to split brain > > ------------------------------ > [email protected] > > > *From:* Roman <[email protected]> > *Date:* 2014-08-08 14:27 > *To:* [email protected] > *Subject:* Re: Re: [Gluster-users] about split-brain > How can it be a bug, if you don't wait for synchronization to complete? > > > 2014-08-08 9:24 GMT+03:00 [email protected] <[email protected]>: > >> Is glusterfs bug ? i want to know whether have some way to avoid this >> split-brain? >> >> ------------------------------ >> [email protected] >> >> >> *From:* Roman <[email protected]> >> *Date:* 2014-08-08 14:16 >> *To:* [email protected] >> *CC:* gluster-users <[email protected]> >> *Subject:* Re: Re: [Gluster-users] about split-brain >> 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 [email protected] <[email protected]>: >> >>> Yes, I do not wait for synchronization to complete. >>> >>> ------------------------------ >>> [email protected] >>> >>> >>> *From:* Roman <[email protected]> >>> *Date:* 2014-08-08 13:53 >>> *To:* [email protected] >>> *CC:* gluster-users <[email protected]> >>> *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 [email protected] <[email protected]>: >>> >>>> 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 >>>> >>>> ------------------------------ >>>> [email protected] >>>> >>>> _______________________________________________ >>>> Gluster-users mailing list >>>> [email protected] >>>> http://supercolony.gluster.org/mailman/listinfo/gluster-users >>>> >>> >>> >>> >>> -- >>> Best regards, >>> Roman. >>> >>> >> >> >> -- >> Best regards, >> Roman. >> >> > > > -- > Best regards, > Roman. > > -- Best regards, Roman.
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