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| <h1 class="title">Apache BookKeeper 4.14.0 Release Notes</h1> |
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| <p>Release 4.14 adds FIPS compliance, improves compaction logic and the Stream Storage, |
| improves data reliability in the recovery scenarios, |
| fixes multiple bugs and brings critical dependencies up-to-date.</p> |
| |
| <p>Apache BookKeeper users are encouraged to upgrade to 4.14.0. |
| The technical details of this release are summarized below.</p> |
| |
| <h2 id="highlights">Highlights</h2> |
| |
| <h3 id="bookkeeper-is-fips-compliant-by-default-now">Bookkeeper is FIPS compliant by default now</h3> |
| |
| <ul> |
| <li> |
| <p>[https://github.com/apache/bookkeeper/pull/2631] Make Bookkeeper FIPS compliant by default</p> |
| |
| <p>FIPS is ‘Federal Information Processing Standard’. |
| It’s a set of guidelines for security functions such as encryption/decryption/RNG etc. |
| Applications running in FIPS mode are said to be more secure as they adhere to more stringent standards.</p> |
| </li> |
| </ul> |
| |
| <h3 id="data-reliability">Data reliability</h3> |
| |
| <ul> |
| <li>[https://github.com/apache/bookkeeper/pull/2616] Add fencing to recovery reads to avoid data loss issue</li> |
| </ul> |
| |
| <h3 id="table-service-stream-storage-reliability-improvements">Table Service (stream storage) reliability improvements</h3> |
| |
| <ul> |
| <li>[https://github.com/apache/bookkeeper/pull/2686] Improved handling of RocksDB tombstones</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2641] Checksum validation for SST files</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2635] Better handling of corrupted checkpoints</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2643] Adjusted default rocksDbBlockCache size to 10%/numberOfLedgers of direct memory</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2698] RocksDB log path is configurable now</li> |
| </ul> |
| |
| <h3 id="compaction-logic-improvements">Compaction logic improvements</h3> |
| |
| <ul> |
| <li>[https://github.com/apache/bookkeeper/pull/2675] forceAllowCompaction to run only when force is set or configured interval</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2670] Allow a customer to set a limit on the duration of the major and minor compaction runs</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2645] Fix: The compaction status report is off by 1</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2626] Allow force compact entry log when entry log compaction is disabled</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2627] Allow DBLedgerStorage to force GC by disk listener</li> |
| </ul> |
| |
| <h3 id="dependency-updates">Dependency updates</h3> |
| |
| <ul> |
| <li>[https://github.com/apache/bookkeeper/pull/2696] SECURITY: Upgraded Netty to 4.1.63.Final</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2701] SECURITY: Removed jackson-mapper-asl dependency to resolve multiple CVEs</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2697] Upgraded Lombok to 1.18.20 (required for Java 16 support)</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2686] Upgraded rocksdb to 6.16.4</li> |
| </ul> |
| |
| <h3 id="other-improvements-and-fixes">Other improvements and fixes</h3> |
| |
| <ul> |
| <li>[https://github.com/apache/bookkeeper/pull/2658] Fix: always select the same region set bug for RegionAwareEnsemblePlacementPolicy</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2650] Allow to attach labels to metrics</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2401] Allow to bypass journal for writes</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2710] Imposed a memory limit on the bookie journal</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2664] Bookkeeper client throttling logic is based upon entryId instead of ledgerId</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2694] Performance: unnecessary copy to heap from CompositeByteBuf</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2654] Ensure that only entries of the current ensemble are included in the ledger recovery process</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2646] Auto-throttle read operations</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2647] Limit read-ahead bytes to the size of the read cache</li> |
| <li>[https://github.com/apache/bookkeeper/pull/2632] Fixed NetworkTopologyImpl#getLeaves returning set with null value in case of non existing scope</li> |
| </ul> |
| |
| <h3 id="other">Other</h3> |
| |
| <p>Documentation, build, CI, tests improvements</p> |
| |
| <h2 id="details">Details</h2> |
| |
| <p>https://github.com/apache/bookkeeper/issues?q=+label%3Arelease%2F4.14.0</p> |
| |
| </section> |
| |
| |
| </div> |
| </div> |
| |
| <div class="column is-2 is-hidden-mobile"> |
| |
| |
| <div class="toc"> |
| <h2 class="title">Apache BookKeeper 4.14.0 Release Notes</h2> |
| <ul class="section-nav"> |
| <li class="toc-entry toc-h2"><a href="#highlights">Highlights</a> |
| <ul> |
| <li class="toc-entry toc-h3"><a href="#bookkeeper-is-fips-compliant-by-default-now">Bookkeeper is FIPS compliant by default now</a></li> |
| <li class="toc-entry toc-h3"><a href="#data-reliability">Data reliability</a></li> |
| <li class="toc-entry toc-h3"><a href="#table-service-stream-storage-reliability-improvements">Table Service (stream storage) reliability improvements</a></li> |
| <li class="toc-entry toc-h3"><a href="#compaction-logic-improvements">Compaction logic improvements</a></li> |
| <li class="toc-entry toc-h3"><a href="#dependency-updates">Dependency updates</a></li> |
| <li class="toc-entry toc-h3"><a href="#other-improvements-and-fixes">Other improvements and fixes</a></li> |
| <li class="toc-entry toc-h3"><a href="#other">Other</a></li> |
| </ul> |
| </li> |
| <li class="toc-entry toc-h2"><a href="#details">Details</a></li> |
| </ul> |
| </div> |
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| </div> |
| </div> |
| </div> |
| |
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| <div id="entry-popover-html" class="popover-template"> |
| <p>An entry is a sequence of bytes (plus some metadata) written to a BookKeeper ledger. Entries are also known as records.</p> |
| |
| </div> |
| |
| <div id="ledger-popover-html" class="popover-template"> |
| <p>A ledger is a sequence of entries written to BookKeeper. Entries are written sequentially to ledgers and at most once, giving ledgers append-only semantics.</p> |
| |
| </div> |
| |
| <div id="bookie-popover-html" class="popover-template"> |
| <p>A bookie is an individual BookKeeper storage server.</p> |
| |
| <p>Bookies store the content of ledgers and act as a distributed ensemble.</p> |
| |
| </div> |
| |
| <div id="rereplication-popover-html" class="popover-template"> |
| <p>A subsystem that runs in the background on bookies to ensure that ledgers are fully replicated even if one bookie from the ensemble is down.</p> |
| |
| </div> |
| |
| <div id="striping-popover-html" class="popover-template"> |
| <p>Striping is the process of distributing BookKeeper ledgers to sub-groups of bookies rather than to all bookies in a BookKeeper ensemble.</p> |
| |
| <p>Striping is essential to ensuring fast performance.</p> |
| |
| </div> |
| |
| <div id="striped-popover-html" class="popover-template"> |
| <p>Striping is the process of distributing BookKeeper ledgers to sub-groups of bookies rather than to all bookies in a BookKeeper ensemble.</p> |
| |
| <p>Striping is essential to ensuring fast performance.</p> |
| |
| </div> |
| |
| <div id="journal-popover-html" class="popover-template"> |
| <p>A journal file stores BookKeeper transaction logs.</p> |
| |
| </div> |
| |
| <div id="fencing-popover-html" class="popover-template"> |
| <p>When a reader forces a ledger to close, preventing any further entries from being written to the ledger.</p> |
| |
| </div> |
| |
| <div id="record-popover-html" class="popover-template"> |
| <p>A record is a sequence of bytes (plus some metadata) written to a BookKeeper ledger. Records are also known as entries.</p> |
| |
| </div> |
| |
| |
| <script type="text/javascript"> |
| |
| tippy('#entry-popover', { |
| html: '#entry-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#ledger-popover', { |
| html: '#ledger-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#bookie-popover', { |
| html: '#bookie-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#rereplication-popover', { |
| html: '#rereplication-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#striping-popover', { |
| html: '#striping-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#striped-popover', { |
| html: '#striped-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#journal-popover', { |
| html: '#journal-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#fencing-popover', { |
| html: '#fencing-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| tippy('#record-popover', { |
| html: '#record-popover-html', |
| arrow: true, |
| animation: 'fade' |
| }); |
| |
| </script> |
| |
| </main> |
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| <p> |
| Copyright © 2016 - 2021 <a href="https://www.apache.org/">The Apache Software Foundation</a>,<br /> licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, version 2.0</a>. |
| </p> |
| <p> |
| Apache BookKeeper, BookKeeper®, Apache®, the Apache feature logo, and the Apache BookKeeper logo are either registered trademarks or trademarks of The Apache Software Foundation. |
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