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| <h1>Release 3.3.5 available</h1> |
| <!--- |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
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| --> |
| <p>This is a release of Apache Hadoop 3.3 line.</p> |
| <p>Key changes include</p> |
| <ul> |
| <li>A big update of dependencies to try and keep those reports of |
| transitive CVEs under control -both genuine and false positives.</li> |
| <li>Critical fix to ABFS input stream prefetching for correct reading.</li> |
| <li>Vectored IO API for all FSDataInputStream implementations, with |
| high-performance versions for file:// and s3a:// filesystems. |
| file:// through java native IO |
| s3a:// parallel GET requests.</li> |
| <li>Arm64 binaries. Note, because the arm64 release was on a different |
| platform, the jar files may not match those of the x86 |
| release -and therefore the maven artifacts.</li> |
| <li>Security fixes in Hadoop’s own code.</li> |
| </ul> |
| <p>Users of Apache Hadoop 3.3.4 and earlier should upgrade to |
| this release.</p> |
| <p>All users are encouraged to read the <a href="http://hadoop.apache.org/docs/r3.3.5/index.html">overview of major changes</a> |
| since release 3.3.4.</p> |
| <p>For details of bug fixes, improvements, and other enhancements since |
| the previous 3.3.4 release, please check <a href="http://hadoop.apache.org/docs/r3.3.5/hadoop-project-dist/hadoop-common/release/3.3.5/RELEASENOTES.3.3.5.html">release notes</a> |
| and <a href="http://hadoop.apache.org/docs/r3.3.5/hadoop-project-dist/hadoop-common/release/3.3.5/CHANGELOG.3.3.5.html">changelog</a>.</p> |
| <h2 id="azure-abfs-critical-stream-prefetch-fix">Azure ABFS: Critical Stream Prefetch Fix</h2> |
| <p>The ABFS connector has a critical bug fix |
| <a href="https://issues.apache.org/jira/browse/HADOOP-18546">https://issues.apache.org/jira/browse/HADOOP-18546</a>: |
| <em>ABFS. Disable purging list of in-progress reads in abfs stream close().</em></p> |
| <p>All users of the abfs connector in hadoop releases 3.3.2+ MUST either upgrade |
| to this release or disable prefetching by setting |
| <code>fs.azure.readaheadqueue.depth</code> to <code>0</code>.</p> |
| |
| <small>2023 Mar 22 </small> |
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