blob: 14de2b11482e6cdc230dc0b615d665515d7141b7 [file] [log] [blame]
<!DOCTYPE html>
<html>
<head>
<title>Apache BookKeeper&trade; - Apache BookKeeper 4.12.1 Release Notes</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="/css/normalize.css">
<link rel="stylesheet" href="/css/tippy.css">
<link rel="stylesheet" href="/css/style.css">
<link rel="shortcut icon" href="/img/favicon.ico">
<script src="/js/tippy.min.js"></script>
<script type="text/javascript">
var shiftWindow = function() { scrollBy(0, -25); };
window.addEventListener("hashchange", shiftWindow);
window.addEventListener("pageshow", shiftWindow);
function load() { if (window.location.hash) shiftWindow(); }
</script>
</head>
<body class="body">
<main class="main">
<nav class="navbar bk-topnav">
<div class="navbar-brand">
<a class="navbar-item bk-brand" href="/">
Apache BookKeeper&trade;
</a>
<div class="navbar-burger burger" data-target="bkNav">
<span></span>
<span></span>
<span></span>
</div>
</div>
<div id="bkNav" class="navbar-menu">
<div class="navbar-start">
<div class="navbar-item has-dropdown is-hoverable">
<a class="navbar-link">Documentation</a>
<div class="navbar-dropdown is-boxed">
<a class="navbar-item" href="/docs/latest/overview/overview">
Version 4.14.0-SNAPSHOT
<span class="tag is-warning">Development</span>
</a>
<a class="navbar-item" href="/docs/latest/api/javadoc">
<span class="icon bk-javadoc-icon">
<img src="/img/java-icon.svg">
</span>
Javadoc
</a>
<hr class="dropdown-divider">
<a class="navbar-item" href="/docs/4.13.0/overview/overview">
Release 4.13.0
</a>
<a class="navbar-item" href="/docs/4.12.1/overview/overview">
Release 4.12.1
</a>
<a class="navbar-item" href="/docs/4.12.0/overview/overview">
Release 4.12.0
</a>
<a class="navbar-item" href="/docs/4.11.1/overview/overview">
Release 4.11.1
<span class="tag is-success">Stable</span>
</a>
<a class="navbar-item" href="/docs/4.11.0/overview/overview">
Release 4.11.0
</a>
<a class="navbar-item" href="/docs/4.10.0/overview/overview">
Release 4.10.0
</a>
<a class="navbar-item" href="/archives/docs/r4.9.2">
Release 4.9.2
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.9.1">
Release 4.9.1
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.9.0">
Release 4.9.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.8.2">
Release 4.8.2
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.8.1">
Release 4.8.1
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.8.0">
Release 4.8.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.7.3">
Release 4.7.3
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.7.2">
Release 4.7.2
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.7.1">
Release 4.7.1
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.7.0">
Release 4.7.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.6.2">
Release 4.6.2
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.6.1">
Release 4.6.1
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.6.0">
Release 4.6.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.5.1">
Release 4.5.1
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.5.0">
Release 4.5.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.4.0">
Release 4.4.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.3.2">
Release 4.3.2
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.3.1">
Release 4.3.1
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.3.0">
Release 4.3.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.2.4">
Release 4.2.4
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.2.3">
Release 4.2.3
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.2.2">
Release 4.2.2
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.2.1">
Release 4.2.1
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.2.0">
Release 4.2.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.1.0">
Release 4.1.0
<span class="tag is-warning">EOL</span>
</a>
<a class="navbar-item" href="/archives/docs/r4.0.0">
Release 4.0.0
<span class="tag is-warning">EOL</span>
</a>
</div>
</div>
<div class="navbar-item has-dropdown is-hoverable">
<a class="navbar-link">Community</a>
<div class="navbar-dropdown is-boxed">
<a class="navbar-item" href="/community/mailing-lists">Mailing lists</a>
<a class="navbar-item" href="/community/slack">Slack</a>
<a class="navbar-item" href="https://github.com/apache/bookkeeper/issues">Github Issues</a>
<a class="navbar-item" href="/community/releases">Release Management</a>
<a class="navbar-item" href="/community/meeting">Community Meetings</a>
<hr class="dropdown-divider">
<a class="navbar-item" href="/community/contributing">Contribution Guide</a>
<a class="navbar-item" href="/community/coding_guide">Coding Guide</a>
<a class="navbar-item" href="/community/testing">Testing Guide</a>
<a class="navbar-item" href="/community/issue-report">Issue Report Guide</a>
<a class="navbar-item" href="/community/release_guide">Release Guide</a>
<hr class="dropdown-divider">
<a class="navbar-item" href="/community/presentations">Presentations</a>
<a class="navbar-item" href="/community/bookkeeper_proposals">BookKeeper Proposals</a>
</div>
</div>
<div class="navbar-item has-dropdown is-hoverable">
<a class="navbar-link">Project</a>
<div class="navbar-dropdown is-boxed">
<a class="navbar-item" href="/project/who">Who are we?</a>
<a class="navbar-item" href="/project/bylaws">Bylaws</a>
<a class="navbar-item" href="http://www.apache.org/licenses/">License</a>
<hr class="dropdown-divider">
<a class="navbar-item" href="/project/privacy">Privacy policy</a>
<a class="navbar-item" href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a>
<a class="navbar-item" href="http://www.apache.org/foundation/thanks.html">Thanks</a>
</div>
</div>
</div>
<div class="navbar-end">
<div class="navbar-item">
<div class="field is-grouped">
<p class="control">
<a class="button bk-twitter" href="https://twitter.com/asfbookkeeper">
<span class="icon">
<i class="fa fa-twitter"></i>
</span>
<span>Twitter</span>
</a>
</p>
<p class="control">
<a class="button" href="https://github.com/apache/bookkeeper">
<span class="icon">
<i class="fa fa-github"></i>
</span>
<span>GitHub</span>
</a>
</p>
<p class="control">
<a class="button is-primary" href="/releases">
<span class="icon">
<i class="fa fa-download"></i>
</span>
<span>Download</span>
</a>
</p>
</div>
</div>
</div>
</div>
</nav>
<div class="bk-docs-container">
<div class="columns is-gapless">
<div class="column is-2 is-hidden-mobile">
<div class="container">
<aside class="sidebar">
<a class="button is-info">
Version: 4.12.1
</a>
<hr />
<p>
Getting started
</p>
<ul class="sidebar-items">
<li>
<a href="../../getting-started/installation">
Installation
</a>
</li>
<li>
<a href="../../getting-started/run-locally">
Run bookies locally
</a>
</li>
<li>
<a href="../../getting-started/concepts">
Concepts and architecture
</a>
</li>
</ul>
<p>
Deployment
</p>
<ul class="sidebar-items">
<li>
<a href="../../deployment/manual">
Manual deployment
</a>
</li>
<li>
<a href="../../deployment/dcos">
BookKeeper on DC/OS
</a>
</li>
<li>
<a href="../../deployment/kubernetes">
BookKeeper on Kubernetes
</a>
</li>
</ul>
<p>
Administration
</p>
<ul class="sidebar-items">
<li>
<a href="../../admin/bookies">
BookKeeper administration
</a>
</li>
<li>
<a href="../../admin/autorecovery">
AutoRecovery
</a>
</li>
<li>
<a href="../../admin/metrics">
Metric collection
</a>
</li>
<li>
<a href="../../admin/upgrade">
Upgrade
</a>
</li>
<li>
<a href="../../admin/http">
BookKeeper Admin REST API
</a>
</li>
<li>
<a href="../../admin/decomission">
Decommissioning Bookies
</a>
</li>
</ul>
<p>
API
</p>
<ul class="sidebar-items">
<li>
<a href="../../api/overview">
Overview
</a>
</li>
<li>
<a href="../../api/ledger-api">
Ledger API
</a>
</li>
<li>
<a href="../../api/ledger-adv-api">
Advanced Ledger API
</a>
</li>
<li>
<a href="../../api/distributedlog-api">
DistributedLog
</a>
</li>
<li>
<a href="../../api/javadoc">
Java API Docs
</a>
</li>
</ul>
<p>
Security
</p>
<ul class="sidebar-items">
<li>
<a href="../../security/overview">
Overview
</a>
</li>
<li>
<a href="../../security/tls">
TLS Authentication
</a>
</li>
<li>
<a href="../../security/sasl">
SASL Authentication
</a>
</li>
<li>
<a href="../../security/zookeeper">
ZooKeeper Authentication
</a>
</li>
</ul>
<p>
Development
</p>
<ul class="sidebar-items">
<li>
<a href="../../development/protocol">
BookKeeper protocol
</a>
</li>
</ul>
<p>
Reference
</p>
<ul class="sidebar-items">
<li>
<a href="../../reference/config">
Configuration
</a>
</li>
<li>
<a href="../../reference/cli">
Command-line tools
</a>
</li>
<li>
<a href="../../reference/metrics">
Metrics
</a>
</li>
</ul>
</aside>
</div>
</div>
<div class="column is-8 bk-docs-block">
<header class="docs-title">
<nav class="level bk-level">
<div class="level-left">
<div class="level-item">
<h1 class="title">Apache BookKeeper 4.12.1 Release Notes</h1>
</div>
</div>
</nav>
</header>
<hr />
<div class="content">
<section class="bk-main-content">
<p>[provide a summary of this release]</p>
<p>Apache BookKeeper users are encouraged to upgrade to 4.12.1. The technical details of this release are summarized
below.</p>
<h2 id="highlights">Highlights</h2>
<p>[List the highlights]</p>
<h2 id="details">Details</h2>
<p>[list to issues list]</p>
</section>
</div>
</div>
<div class="column is-2 is-hidden-mobile">
<div class="toc">
<h2 class="title">Apache BookKeeper 4.12.1 Release Notes</h2>
<ul class="section-nav">
<li class="toc-entry toc-h2"><a href="#highlights">Highlights</a></li>
<li class="toc-entry toc-h2"><a href="#details">Details</a></li>
</ul>
</div>
</div>
</div>
</div>
<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>
<footer class="footer">
<div class="container">
<div class="content has-text-centered">
<p>
Copyright &copy; 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.
</p>
</div>
</div>
</footer>
</body>
<script src="/js/app.js"></script>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-104419626-1', 'auto');
ga('send', 'pageview');
</script>
</html>