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hexiaoqiao pushed a commit to branch trunk
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The following commit(s) were added to refs/heads/trunk by this push:
new b0bfd09c41a HDFS-16798. HDFS-16798. SerialNumberMap should decrease
current counter if the item exist. (#4987). Contributed by ZanderXu.
b0bfd09c41a is described below
commit b0bfd09c41a1afa2e019f8a2482f1689a348bbde
Author: ZanderXu <xuzengqiang5...@gmail.com>
AuthorDate: Sun Oct 9 18:58:09 2022 +0800
HDFS-16798. HDFS-16798. SerialNumberMap should decrease current counter if
the item exist. (#4987). Contributed by ZanderXu.
Signed-off-by: He Xiaoqiao <hexiaoq...@apache.org>
---
.../java/org/apache/hadoop/hdfs/server/namenode/SerialNumberMap.java | 1 +
1 file changed, 1 insertion(+)
diff --git
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/SerialNumberMap.java
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/SerialNumberMap.java
index d9a41428b55..ff116b51188 100644
---
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/SerialNumberMap.java
+++
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/SerialNumberMap.java
@@ -68,6 +68,7 @@ public class SerialNumberMap<T> {
}
Integer old = t2i.putIfAbsent(t, sn);
if (old != null) {
+ current.getAndDecrement();
return old;
}
i2t.put(sn, t);
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