Github user synhershko commented on a diff in the pull request: https://github.com/apache/lucenenet/pull/171#discussion_r63530524 --- Diff: src/Lucene.Net.Core/Index/LiveIndexWriterConfig.cs --- @@ -149,7 +149,11 @@ internal LiveIndexWriterConfig(Analyzer analyzer, LuceneVersion matchVersion) useCompoundFile = IndexWriterConfig.DEFAULT_USE_COMPOUND_FILE_SYSTEM; openMode = OpenMode_e.CREATE_OR_APPEND; similarity = IndexSearcher.DefaultSimilarity; +#if FEATURE_TASKMERGESCHEDULER + mergeScheduler = new TaskMergeScheduler(); +#else mergeScheduler = new ConcurrentMergeScheduler(); +#endif --- End diff -- I am not sure I am following - you only need a setter for MergeScheduler in this class (`LiveIndexWriterConfig`) and then override it when initialized if wanted. Since IndexWriter is initialized with a LiveIndexWriterConfig, you are all set.
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