Michael McCandless created LUCENE-6233:
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Summary: CheckIndex is dog slow when checking term vectors
Key: LUCENE-6233
URL: https://issues.apache.org/jira/browse/LUCENE-6233
Project: Lucene - Core
Issue Type: Bug
Reporter: Michael McCandless
Assignee: Michael McCandless
I'm working on a test that creates a biggish index and I noticed the CheckIndex
takes a surprisingly long time to check term vectors.
I profiled it and uncovered that we spend a lot of time (not sure this explains
all of it) in Terms.getMin/getMax. Since CompressingTermVectorsReader doesn't
impl these methods efficiently (which is fine), we fallback to super's impl,
which does a digit-by-digit binary search using seekCeil.
But for TVs this sometimes results in a linear scan.
I think CheckIndex should not check Terms.getMin/Max for TVs?
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