I’m using an IndexSearcher created from an IndexWriter (NRT mode).

Up until now the IW was kept open forever.

I want to properly handle cases where an indexing task failed and call 
IW.rollback to discard the incomplete changes. 

The problem I’m facing is that rollback also closes the writer.

Q1: Can I somehow keep using the same IndexSearcher instance after the writer 
is closed? 

Q2: Can I rollback the changes without closing the writer?

 

Creating a new IndexSearcher is possible but can be a bit fragile as it is used 
by many threads concurrently.

 

 

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