Hello,
We are using glusterfs version 3.7.2.
There are few i/o errors reported during our testing and i/o errors are due to split brain files.
We tried to find the split brain files with "gluster volume heal <vol> info split-brain".
But strangely the command shows that the number of split brain files count is zero.
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# Brick1> gluster volume heal c_glusterfs info split-brain
Brick oamhost:/opt/lvmdir/c2/brick/
Number of entries in split-brain: 0
Brick oamhost:/opt/lvmdir/c2/brick/
Number of entries in split-brain: 0
#
# Brick2> gluster volume heal c_glusterfs info split-brain
Brick oamhost:/opt/lvmdir/c2/brick/
Number of entries in split-brain: 0
Brick oamhost:/opt/lvmdir/c2/brick/
Number of entries in split-brain: 0
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We checked below commands on the files on which IO errors are reported i.e config.ior
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000300> cat config.ior
IOR:000000000000002B49444C3A6F6D672E6F72672F436F734E616D696E672F4E616D696E67436F6E746578744578743A312E300000000000010000000000000058000102000000000C31302E36372E32392E333600DE020000000000255374616E64617264496D706C4E616D652F4E616D655365727665722D504F412F5F726F6F74000000000000010000000000000008000000004A414300
Brick1> getfattr -d -m . -e hex config.ior
# file: config.ior
trusted.afr.c_glusterfs-client-5=0x000000000000000000000000
trusted.afr.dirty=0x000000000000000000000000
trusted.bit-rot.version=0x000000000000000255c0c95f0002ebc7
trusted.gfid=0xa88805cdad454e71b30a97f88fdceed8
Brick2> cat config.ior
IOR:000000000000002B49444C3A6F6D672E6F72672F436F734E616D696E672F4E616D696E67436F6E746578744578743A312E300000000000010000000000000058000102000000000C31302E36372E32392E333600DE020000000000255374616E64617264496D706C4E616D652F4E616D655365727665722D504F412F5F726F6F74000000000000010000000000000008000000004A414300
Brick2> getfattr -d -m . -e hex config.ior
# file: config.ior
trusted.afr.c_glusterfs-client-4=0x000000040000000100000000
trusted.bit-rot.version=0x000000000000000255c0e3cf0006246e
trusted.gfid=0x0b6d4b8a18c247f8abf59065eb85beb2
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From the extended attributes, an entry split-brain seems to be appeared. Since gfid is different for the original file and its replica.
Can you please let us know why the split-brain files are not shown in "gluster volume heal <vol> info split-brain" command?
Kindly let us know if any known issue exists.
Thanks & Regards,
Lakshmi Anusha
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