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HDFS-10396. Using -diff option with DistCp may get "Comparison method violates its general contract" exception. Contributed by Yongjun Zhang.

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This commit is contained in:
Yongjun Zhang 2016-06-28 23:15:13 -07:00
parent 26b5e6116f
commit 8113855b3a
1 changed files with 2 additions and 2 deletions
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4
hadoop-tools/hadoop-distcp/src/main/java/org/apache/hadoop/tools/DiffInfo.java
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@ -38,8 +38,8 @@ public int compare(DiffInfo d1, DiffInfo d2) {
static final Comparator<DiffInfo> targetComparator = new Comparator<DiffInfo>() {
@Override
public int compare(DiffInfo d1, DiffInfo d2) {
return d1.target == null ? -1 :
(d2.target == null ? 1 : d1.target.compareTo(d2.target));
return d1.target == null ? ((d2.target == null)? 0 : -1) :
(d2.target == null ? 1 : d1.target.compareTo(d2.target));
}
};