When the prefetch-fd cache was separated from the main one, the prefetch default parameters ended up with 0,0 values, unintentionally. They should be somewhat non-zero, probably a function of the default values of the main fdcache.
PR29098: debuginfod - set default prefetch cache size to >0 Added default value to fdcache_prefetch_mds and fdcache_prefetch_fds. Defaults to one half of corresponding fdcache's values. Signed-off-by: Noah Sanci <nsanci@redhat.com>