jt2594838 commented on a change in pull request #460:
URL: https://github.com/apache/iotdb/pull/460#discussion_r537400875
##########
File path:
server/src/main/java/org/apache/iotdb/db/engine/compaction/no/NoCompactionTsFileManagement.java
##########
@@ -56,7 +56,7 @@ public NoCompactionTsFileManagement(String storageGroupName,
String storageGroup
if (sequence) {
return new ArrayList<>(sequenceFileTreeSet);
} else {
- return unSequenceFileList;
+ return new ArrayList<>(unSequenceFileList);
Review comment:
But it may be changed indide, making an iteration throws a
ConcurrentModificationException.
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