Just for curiosity:
> @@ -93,14 +94,16 @@ public class UpgradeIndexMergePolicy ext
> if (oldSegments.isEmpty())
> return null;
>
> - MergeSpecification spec = base.findMergesForOptimize(segmentInfos,
> maxSegmentCount, oldSegments);
> + MergeSpecification spec = base.findMergesForOptimize(segmentInfos,
> + maxSegmentCount, oldSegments);
>
> if (spec != null) {
> // remove all segments that are in merge specification from
> oldSegments,
> // the resulting set contains all segments that are left over
> // and will be merged to one additional segment:
> for (final OneMerge om : spec.merges) {
> - oldSegments.removeAll(om.segments);
> + for(SegmentInfo info : om.segments) {
> + oldSegments.remove(info);
> + }
> }
> }
This can be simply be optimized by using views:
oldSegments.keySet().removeAll(om.segments);
Uwe
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