Directory createOutput and openInput should take an IOContext
-------------------------------------------------------------
Key: LUCENE-2793
URL: https://issues.apache.org/jira/browse/LUCENE-2793
Project: Lucene - Java
Issue Type: Improvement
Components: Store
Reporter: Michael McCandless
Today for merging we pass down a larger readBufferSize than for searching
because we get better performance.
I think we should generalize this to a class (IOContext), which would hold the
buffer size, but then could hold other flags like DIRECT (bypass OS's buffer
cache), SEQUENTIAL, etc.
Then, we can make the DirectIOLinuxDirectory fully usable because we would only
use DIRECT/SEQUENTIAL during merging.
This will require fixing how IW pools readers, so that a reader opened for
merging is not then used for searching, and vice/versa. Really, it's only all
the open file handles that need to be different -- we could in theory share del
docs, norms, etc, if that were somehow possible.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
