This is an automated email from the ASF dual-hosted git repository.
slfan1989 pushed a commit to branch branch-3.4.0
in repository https://gitbox.apache.org/repos/asf/hadoop.git
The following commit(s) were added to refs/heads/branch-3.4.0 by this push:
new cdb8af4f22ec Highlight big features and improvements.
cdb8af4f22ec is described below
commit cdb8af4f22ecbb49e7b722468b9005a4b9667967
Author: slfan1989 <louj1988@@>
AuthorDate: Thu Jan 11 11:30:30 2024 +0800
Highlight big features and improvements.
---
hadoop-project/src/site/markdown/index.md.vm | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/hadoop-project/src/site/markdown/index.md.vm
b/hadoop-project/src/site/markdown/index.md.vm
index 33c86bbc06e9..76eb9af83531 100644
--- a/hadoop-project/src/site/markdown/index.md.vm
+++ b/hadoop-project/src/site/markdown/index.md.vm
@@ -15,7 +15,7 @@
Apache Hadoop ${project.version}
================================
-Apache Hadoop ${project.version} is an update to the Hadoop 3.3.x release
branch.
+Apache Hadoop ${project.version} is an update to the Hadoop 3.4.x release
branch.
Overview of Changes
===================
@@ -23,6 +23,29 @@ Overview of Changes
Users are encouraged to read the full set of release notes.
This page provides an overview of the major changes.
+DataNode FsDatasetImpl Fine-Grained Locking via BlockPool
+----------------------------------------
+[HDFS-15180](https://issues.apache.org/jira/browse/HDFS-15180) Split
FsDatasetImpl datasetLock via blockpool to solve the issue of heavy
FsDatasetImpl datasetLock
+When there are many namespaces in a large cluster.
+
+YARN Federation improvements
+----------------------------------------
+[YARN-5597](https://issues.apache.org/jira/browse/YARN-5597) brings many
improvements, including the following:
+
+1. YARN Router now boasts a full implementation of all relevant interfaces
including the ApplicationClientProtocol, ResourceManagerAdministrationProtocol,
and RMWebServiceProtocol.
+2. Enhanced support for Application cleanup and automatic offline mechanisms
for SubCluster are now facilitated by the YARN Router.
+3. Code optimization for Router and AMRMProxy was undertaken, coupled with
improvements to previously pending functionalities.
+4. Audit logs and Metrics for Router received upgrades.
+5. A boost in cluster security features was achieved, with the inclusion of
Kerberos support.
+6. The page function of the router has been enhanced.
+
+Upgrade AWS SDK to V2
+----------------------------------------
+[HADOOP-18073](https://issues.apache.org/jira/browse/HADOOP-18073)
+The S3A connector now uses the V2 AWS SDK. This is a significant change at
the source code level.
+Any applications using the internal extension/override points in the
filesystem connector are likely to break.
+Consult the document aws\_sdk\_upgrade for the full details.
+
Azure ABFS: Critical Stream Prefetch Fix
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