Hi Tom:
So, the failing ec code is also 10+2 here:
ceph osd erasure-code-profile set glasgow-ec \
k=10 \
m=2 \
crush-failure-domain=osd
Test EC codes which have succeeded, so far are:
k=4, m=2 failure-domain=osd
k=4, m=2 failure-domain=host
k=8, m=2 failure-domain=osd
EC codes which have failed
k=6, m=2 failure-domain=osd
k=10, m=2 failure-domain=osd
It seems likely that jerasure ec pools (at least) are not compatible with libradosstriper
if k is not a power of 2.
I suggest this be submitted as a bug?