Floyd, Implementing a custom merge policy involves a concrete implementation Lucene.Net.Index.MergePolicy. The only documentation to point you to are the javadocs as the API between Java Lucene & Lucene.Net are identical:
http://lucene.apache.org/java/2_9_2/api/all/org/apache/lucene/index/Merg ePolicy.html For an implementation example take a look at Lucene.Net.Index.LogMergePolicy. Michael -----Original Message----- From: Floyd Wu [mailto:[email protected]] Sent: Tuesday, March 09, 2010 7:14 PM To: [email protected] Subject: Re: About processing handling during merge time Hi Michael, If I want to create a custom merge policy that act "Never do merge during work day". Where to start? I read something about merge policy could be related with scheduler, but I'm not sure the relationship between these two objects. many thanks. Floyd 2010/3/9 Michael Garski <[email protected]> > Floyd, > > Long-running merges are an issue with large indexes due to the CPU and > I/O overhead required to perform the merge, but there are a few things > you can do to reduce that time: > > 1) Create a custom merge policy to give you control over when merges > occur and what segments are merged > 2) Shard your index into smaller pieces that are searched together using > a MultiSearcher - this will keep your indexes smaller. > > Michael > > -----Original Message----- > From: Floyd Wu [mailto:[email protected]] > Sent: Monday, March 08, 2010 1:45 AM > To: [email protected] > Subject: About processing handling during merge time > > Hi all, > > I have a problem that my index files is 33.4gb now, and when I insert > new > index through Lucene.Net few times. Lucene will execute merge index > files > automatically. The problem is during merge executed, writer.lock file > will > be created and all operations such as read/write index files were all > stopped. > (for a long time and there were no any status or flag to know Lucene > were > executeing merge process.) > > Are there any solutions to avoid this "long time lock" situation? > > Thanks in advanced. > > Floyd > >
