OK. I'll double check the reports. So presumably when merges occur outside of transaction control (post commit) the post-merge update of the segments_N file is managed safely somehow? I can see the logic in continuing file changes outside of transaction control because the document updates are safely committed (flushed as new segments) and the merges are essentially just a background tidying of committed state that can fail with no detrimental effect on the previous transaction.
On 5 Oct 2010, at 23:31, Michael McCandless wrote: > Hmm that shouldn't be the case, I think? > > In both 2.4 and 2.9.x (and all later versions), neither .prepareCommit > nor .commit wait for merges. > > That said, if a merge happens to complete before you call those > methods, then it is in fact committed. > > Mike > > On Tue, Oct 5, 2010 at 1:13 PM, Mark Harwood <markharw...@yahoo.co.uk> wrote: >> Having upgraded a live system from 2.4 to 2.9.3 the client is reporting a >> change in merge behaviour that is causing some issues with their update >> monitoring logic. >> >> The suggestion is that any merge operations now complete as part of the >> IW.prepareCommit() call rather than previously when they ran in the >> background after IW.commit calls. >> This seems to make sense to me but I couldn't see any direct reference to >> this change in behaviour in changes.txt. >> >> Can anyone confirm this change between versions? >> >> Cheers, >> Mark >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
