Github user milleruntime commented on a diff in the pull request:
https://github.com/apache/accumulo/pull/159#discussion_r84969204
--- Diff:
core/src/main/java/org/apache/accumulo/core/iterators/system/SourceSwitchingIterator.java
---
@@ -162,6 +162,10 @@ private void readNext(boolean initialSeek) throws
IOException {
private boolean switchSource() throws IOException {
if (!source.isCurrent()) {
source = source.getNewDataSource();
+ // if our source actually changed, then attempt to close the
previous iterator
+ if (iter != null) {
--- End diff --
Thanks for the help @keith-turner ! Merged in 4a83688
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