ZanderXu commented on code in PR #5013:
URL: https://github.com/apache/hadoop/pull/5013#discussion_r1005141101
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hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirRenameOp.java:
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@@ -247,10 +247,8 @@ static RenameResult renameToInt(
throws IOException {
String src = srcArg;
String dst = dstArg;
- if (NameNode.stateChangeLog.isDebugEnabled()) {
- NameNode.stateChangeLog.debug("DIR* NameSystem.renameTo: with options -"
+
- " " + src + " to " + dst);
- }
+ NameNode.stateChangeLog.debug("DIR* NameSystem.renameTo: with options={}
{} to {}",
+ Arrays.toString(options), src, dst);
Review Comment:
Oh, here is my mistake. @jianghuazhu we need `if
(NameNode.stateChangeLog.isDebugEnabled())` here, because
`Arrays.toString(options)` will cost some time to compose a string.
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