Justin,
Be advised, overdependence on DirectIODirectory can lead to other problems,
which vary based on the amount of data, access patterns, resource
utilization, etc. I have seen issues in a few places. If you are running a
fork, the problems can be even more pronounced and less understood. You
Hi,
There is a workaround available called DirectIODirectory. You can
subclass it and override useDirectIO() method to return true only for
fdt files. It wraps another FSDirectory (e.g. MMapDirectory) and
delegates everything back to it, but for those where useDirectIO()
returns true it
Is there any way to keep field data files out of the operating system's
page cache? We only use fdt for highlighting and don't need to keep it warm
in memory. From what I understand, the operating system is in control of
what files get loaded into the page cache. Does Lucene have any mechanisms
