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Michael Busch commented on LUCENE-2555: --------------------------------------- {quote} I understand (mostly from the discussion on the PTDW) that with the move to a per-thread approach, the doc stores cannot be shared between segments created by different threads, but what about segments created by the same thread? Are we losing that functionality? {quote} We discussed that in LUCENE-2324 (close to the bottom). The problem is that doc stores only help you if you merge segments that all share the same store. With DWPT that's extremely unlikely. {quote} What are the performance implications of removing shared doc stores? {quote} I agree we have to test this when this patch is complete. My hope is that we save in other places (removing the interleaving step of the per-thread postings, no wait queue that serializes writing to doc stores) so that overall we won't be slower. > Remove shared doc stores > ------------------------ > > Key: LUCENE-2555 > URL: https://issues.apache.org/jira/browse/LUCENE-2555 > Project: Lucene - Java > Issue Type: Improvement > Components: Index > Reporter: Michael Busch > Assignee: Michael Busch > Priority: Minor > Fix For: Realtime Branch > > > With per-thread DocumentsWriters sharing doc stores across segments doesn't > make much sense anymore. > See also LUCENE-2324. -- 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: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org