bshashikant commented on a change in pull request #2595:
URL: https://github.com/apache/hadoop/pull/2595#discussion_r567939782
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/metrics/NameNodeMetrics.java
##########
@@ -459,4 +472,23 @@ public void addEditLogTailInterval(long elapsed) {
q.add(elapsed);
}
}
+ public void incrNumSnapshotDelete() {
+ numSnapshotTotalDeleteOp.incr();
Review comment:
Its already an existing metric...Let's remove it.
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/SnapshotManager.java
##########
@@ -519,6 +520,14 @@ public void deleteSnapshot(final INodesInPath iip, final
String snapshotName,
final List<XAttr> xattrs = Lists.newArrayListWithCapacity(1);
xattrs.add(snapshotXAttr);
+ // Check if snapshot is already marked as deleted.
+ // If already marked deleted, metric for out of order snapshot deletion
+ // won't be incremented.
+ XAttr existingXAttr = FSDirXAttrOp.getXAttrByPrefixedName(
+ fsdir, INodesInPath.append(iip, snapshot.getRoot(),
Review comment:
we can use snaphot.getRoot().isMarkedAsDeleted() here instead?
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/metrics/NameNodeMetrics.java
##########
@@ -459,4 +472,23 @@ public void addEditLogTailInterval(long elapsed) {
q.add(elapsed);
}
}
+ public void incrNumSnapshotDelete() {
+ numSnapshotTotalDeleteOp.incr();
+ }
+ public void incrOutOfOrderSnapshotDelete() {
+ numSnapshotOutOfOrderDeleteOp.incr();
+ }
+ public void incrInOrderSnapshotDelete() {
+ numSnapshotInOrderDeleteOp.incr();
+ }
Review comment:
its better to move these 2 metrics to SnapshotMetrcics.
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