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MDEV-10829: innodb_numa_interleave=1, use numa numa_get_mems_allowed
Using numa_all_nodes_ptr was excessively optimistic. Due to constraints in systemd, containers or otherwise mysqld could of been limited to a smaller set of cpus. Use the numa_get_mems_allowed library function to see what we can interleave between before doing so. The alternative is to fail interleaving overall. Signed-off-by: Daniel Black <daniel.black@au.ibm.com>
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