HDFS-11511. Support Timeout when checking single disk. Contributed by…

… Hanisha Koneru.

LICENSE.txt

@@ -2659,4 +2659,24 @@ available under the Creative Commons By Attribution 3.0 License.
         available upon request from time to time. For the avoidance of doubt,
         this trademark restriction does not form part of this License.
 
-        Creative Commons may be contacted at https://creativecommons.org/.
+        Creative Commons may be contacted at https://creativecommons.org/.
+--------------------------------------------------------------------------------
+
+For: hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs
+/server/datanode/checker/AbstractFuture.java and
+hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs
+/server/datanode/checker/TimeoutFuture.java
+
+Copyright (C) 2007 The Guava Authors
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License. You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+License for the specific language governing permissions and limitations under
+the License.

hadoop-hdfs-project/hadoop-hdfs/dev-support/findbugsExcludeFile.xml

@@ -240,4 +240,16 @@
         <Method name="getBlockLayoutRedundancy" />
         <Bug pattern="BIT_IOR_OF_SIGNED_BYTE" />
     </Match>
+    <Match>
+        <Class name="org.apache.hadoop.hdfs.server.datanode.checker.AbstractFuture" />
+        <Bug pattern="DLS_DEAD_STORE_OF_CLASS_LITERAL" />
+    </Match>
+    <Match>
+        <Class name="org.apache.hadoop.hdfs.server.datanode.checker.AbstractFuture" />
+        <Bug pattern="DLS_DEAD_LOCAL_STORE" />
+    </Match>
+    <Match>
+        <Class name="org.apache.hadoop.hdfs.server.datanode.checker.AbstractFuture" />
+        <Bug pattern="NS_DANGEROUS_NON_SHORT_CIRCUIT" />
+    </Match>
  </FindBugsFilter>