Michael McCandless created LUCENE-5693: ------------------------------------------
Summary: don't write deleted documents on flush Key: LUCENE-5693 URL: https://issues.apache.org/jira/browse/LUCENE-5693 Project: Lucene - Core Issue Type: Improvement Reporter: Michael McCandless When we flush a new segment, sometimes some documents are "born deleted", e.g. if the app did a IW.deleteDocuments that matched some not-yet-flushed documents. We already compute the liveDocs on flush, but then we continue (wastefully) to send those known-deleted documents to all Codec parts. I started to implement this on LUCENE-5675 but it was too controversial. Also, I expect typically the number of deleted docs is 0, or small, so not writing "born deleted" docs won't be much of a win for most apps. Still it seems silly to write them, consuming IO/CPU in the process, only to consume more IO/CPU later for merging to re-delete them. -- This message was sent by Atlassian JIRA (v6.2#6252) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org