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From keith-turner <>
Subject [GitHub] accumulo pull request #244: Discuss ACCUMULO-3079: collapsing the iterator s...
Date Fri, 21 Apr 2017 22:12:11 GMT
Github user keith-turner commented on a diff in the pull request:
    --- Diff: core/src/main/java/org/apache/accumulo/core/iterators/
    @@ -58,21 +58,21 @@ protected void setSource(SortedKeyValueIterator<Key,Value> source)
       public Key getTopKey() {
         if (seenSeek == false)
           throw new IllegalStateException("never been seeked");
    -    return getSource().getTopKey();
    +    return source.getTopKey();
    --- End diff --
    I experimented with making the VersioningIterator and Filter not call WrappingIterator.getSource()
multiple times in their loops.  I saw a noticeable difference, like 5% increase for the VersioningIterator.
 I change the code to call getSource() once before the loop and store the source in a local

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