IndexWriter.setMaxMergeDocs gives non-backwards-compatible exception "out of
the box"
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Key: LUCENE-1013
URL: https://issues.apache.org/jira/browse/LUCENE-1013
Project: Lucene - Java
Issue Type: Bug
Components: Index
Affects Versions: 2.3
Reporter: Michael McCandless
Assignee: Michael McCandless
Fix For: 2.3
Yonik hit this (see details in LUCENE-994): because we have switched
to LogByteSizeMergePolicy by default in IndexWriter, which uses MB to
limit max size of merges (setMaxMergeMB), when an existing app calls
setMaxMergeDocs (or getMaxMergeDocs) it will hit an
IllegalArgumentException on dropping in the new JAR.
I think the simplest solution is to fix LogByteSizeMergePolicy to
allow setting of the max by either MB or by doc count, just like how
in LUCENE-1007 allows flushing by either MB or docCount or both.
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