(cherry picked from commit 605ed85c291a6250b077da32a49dbb35f3b78bf7) Conflicts: hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestFsDatasetImpl.java (cherry picked from commit f6efb58b0735fa19a93fa9acae05666cdba8997a) Conflicts: hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/FsVolumeSpi.java hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/TestDirectoryScanner.java
HADOOP-17627. Backport to branch-3.2 HADOOP-17371, HADOOP-17621, HADOOP-17625 to update Jetty to 9.4.39. (#2879)
HDFS-15621. Datanode DirectoryScanner uses excessive memory (#2849). Contributed by Stephen O'Donnell
For the latest information about Hadoop, please visit our website at: http://hadoop.apache.org/ and our wiki, at: http://wiki.apache.org/hadoop/ This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See <http://www.wassenaar.org/> for more information. The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this Apache Software Foundation distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code. The following provides more details on the included cryptographic software: Hadoop Core uses the SSL libraries from the Jetty project written by mortbay.org.
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