Please cherrypick to lower branches

Hello, Now that we're gradually switching to github PRs for code review, there appears to be a tendency to leave the commits in the trunk. I am sweeping through the commits in trunk and found a lot of goodies can be cherry picked without conflicts to branch-3.3. Unless it's something experimenta

Apache Hadoop qbt Report: trunk+JDK11 on Linux/x86_64

For more details, see https://ci-hadoop.apache.org/job/hadoop-qbt-trunk-java11-linux-x86_64/142/ [Mar 22, 2021 2:43:32 AM] (noreply) HADOOP-17952. Fix the wrong CIDR range example in Proxy User documentation. (#2780) [Mar 22, 2021 4:12:27 AM] (noreply) YARN-10706. Upgrade com.github.eirslett:fr

[jira] [Created] (HDFS-15915) Race condition with async edits logging due to updating txId outside of the namesystem log

Konstantin Shvachko created HDFS-15915: -- Summary: Race condition with async edits logging due to updating txId outside of the namesystem log Key: HDFS-15915 URL: https://issues.apache.org/jira/browse/HDFS-159

Apache Hadoop qbt Report: trunk+JDK8 on Linux/x86_64

For more details, see https://ci-hadoop.apache.org/job/hadoop-qbt-trunk-java8-linux-x86_64/455/ [Mar 22, 2021 2:43:32 AM] (noreply) HADOOP-17952. Fix the wrong CIDR range example in Proxy User documentation. (#2780) [Mar 22, 2021 4:12:27 AM] (noreply) YARN-10706. Upgrade com.github.eirslett:fro

[jira] [Created] (HDFS-15914) Possible Resource Leak in org.apache.hadoop.hdfs.server.common.blockaliasmap.impl.TextFileRegionAliasMap

Narges Shadab created HDFS-15914: Summary: Possible Resource Leak in org.apache.hadoop.hdfs.server.common.blockaliasmap.impl.TextFileRegionAliasMap Key: HDFS-15914 URL: https://issues.apache.org/jira/browse/HDFS-1

[jira] [Resolved] (HDFS-15910) Replace bzero with explicit_bzero for better safety

[ https://issues.apache.org/jira/browse/HDFS-15910?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Íñigo Goiri resolved HDFS-15910. Fix Version/s: 3.4.0 Hadoop Flags: Reviewed Resolution: Fixed > Replace bzero with expl

[jira] [Resolved] (HDFS-15913) Remove useless NULL checks before instanceof

[ https://issues.apache.org/jira/browse/HDFS-15913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Íñigo Goiri resolved HDFS-15913. Fix Version/s: 3.4.0 Hadoop Flags: Reviewed Resolution: Fixed > Remove useless NULL che

Apache Hadoop qbt Report: branch-2.10+JDK7 on Linux/x86_64

For more details, see https://ci-hadoop.apache.org/job/hadoop-qbt-branch-2.10-java7-linux-x86_64/246/ [Mar 22, 2021 2:47:03 AM] (Akira Ajisaka) HADOOP-17952. Fix the wrong CIDR range example in Proxy User documentation. (#2780) [Mar 22, 2021 8:30:19 PM] (Jim Brennan) MAPREDUCE-7322. revisiting

[jira] [Resolved] (HDFS-15908) Possible Resource Leak in org.apache.hadoop.hdfs.qjournal.server.Journal

[ https://issues.apache.org/jira/browse/HDFS-15908?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Ayush Saxena resolved HDFS-15908. - Fix Version/s: 3.4.0 Hadoop Flags: Reviewed Resolution: Fixed > Possible Resource Lea

[jira] [Created] (HDFS-15913) Remove useless NULL checks before instanceof

Jiajun Jiang created HDFS-15913: --- Summary: Remove useless NULL checks before instanceof Key: HDFS-15913 URL: https://issues.apache.org/jira/browse/HDFS-15913 Project: Hadoop HDFS Issue Type: Im