Hi, I ran into a very strange situation regarding document retrieval slowness and want to get some advice urgently. I have 2 FSDirectory indexes each with size about 500M. I have 2 parallel search threads fetching 200 documents from these 2 indexes which usually take less then 16ms. However, everytime afer some heavy disk operations (such as copy 1G size of a file into that disk) , the document retrieval slows down to couple seconds immediately, even well after this disk operation being finished for a long time. It appears Lucene could never resume to it's original speed and I have to restart by application inorder to get it normal. Anybody has encountered similiar problems?
