smengcl commented on a change in pull request #2176:
URL: https://github.com/apache/hadoop/pull/2176#discussion_r467222131
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
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@@ -516,6 +516,11 @@
public static final int
DFS_NAMENODE_SNAPSHOT_SKIPLIST_MAX_SKIP_LEVELS_DEFAULT = 0;
+ public static final String DFS_NAMENODE_SNAPSHOT_TRASHROOT_ENABLED =
+ "dfs.namenode.snapshot.trashroot.enabled";
+ public static final boolean DFS_NAMENODE_SNAPSHOT_TRASHROOT_ENABLED_DEFAULT =
Review comment:
Got it. I will put it in `FSNameSystem` as private config then as it is
used there, similar to HDFS-15481
[did](https://github.com/apache/hadoop/blob/e072d33327b8f5d38b74a15e279d492ad379a47c/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/SnapshotManager.java#L88-L96).
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