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Ning Li commented on LUCENE-847: -------------------------------- Hmm, it's actually possible to have concurrent merges with SerialMergeScheduler. Making SerialMergeScheduler.merge synchronize on SerialMergeScheduler will serialize all merges. A merge can still be concurrent with a ram flush. Making SerialMergeScheduler.merge synchronize on IndexWriter will serialize all merges and ram flushes. > Factor merge policy out of IndexWriter > -------------------------------------- > > Key: LUCENE-847 > URL: https://issues.apache.org/jira/browse/LUCENE-847 > Project: Lucene - Java > Issue Type: Improvement > Components: Index > Reporter: Steven Parkes > Assignee: Steven Parkes > Fix For: 2.3 > > Attachments: concurrentMerge.patch, LUCENE-847.patch.txt, > LUCENE-847.patch.txt, LUCENE-847.take3.patch, LUCENE-847.take4.patch, > LUCENE-847.take5.patch, LUCENE-847.take6.patch, LUCENE-847.take7.patch, > LUCENE-847.txt > > > If we factor the merge policy out of IndexWriter, we can make it pluggable, > making it possible for apps to choose a custom merge policy and for easier > experimenting with merge policy variants. -- 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]