wonderful! I'll be testing over the weekend Meanwhile, new changes I'm putting in to trunk are tagged as fixed in 3.5.0 -correct?
steve On Thu, 11 Jan 2024 at 05:15, slfan1989 <slfan1...@apache.org> wrote: > Hello all, > > We plan to release hadoop 3.4.0 based on hadoop trunk, which is the first > hadoop 3.4.0-RC version. > > The RC is available at: > https://home.apache.org/~slfan1989/hadoop-3.4.0-RC0-amd64/ (for amd64) > https://home.apache.org/~slfan1989/hadoop-3.4.0-RC0-arm64/ (for arm64) > > Maven artifacts is built by x86 machine and are staged at > https://repository.apache.org/content/repositories/orgapachehadoop-1391/ > > My public key: > https://dist.apache.org/repos/dist/release/hadoop/common/KEYS > > Changelog: > https://home.apache.org/~slfan1989/hadoop-3.4.0-RC0-amd64/CHANGELOG.md > > Release notes: > https://home.apache.org/~slfan1989/hadoop-3.4.0-RC0-amd64/RELEASENOTES.md > > This is a relatively big release (by Hadoop standard) containing about 2852 > commits. > > Please give it a try, this RC vote will run for 7 days. > > Feature highlights: > > 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. > > hadoop-thirdparty will also provide the new RC0 soon. > > Best Regards, > Shilun Fan. >
