| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Apache BookKeeper™ - Apache BookKeeper 4.8.0 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™ |
| </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: 4.8.0 |
| </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 4.8.0 Release Notes</h1> |
| </div> |
| </div> |
| |
| </nav> |
| |
| |
| </header> |
| |
| <hr /> |
| |
| <div class="content"> |
| <section class="bk-main-content"> |
| <p>This is the 13th release of Apache BookKeeper!</p> |
| |
| <p>The 4.8.0 release incorporates hundreds of bug fixes, improvements, and features since previous major release, 4.7.0. |
| It is a new big milestone in Apache BookKeeper community, |
| this release include great new features, like Relaxed Durability, Stream Storage service and Multiple active Entrylogs.</p> |
| |
| <p>Apache BookKeeper/DistributedLog users are encouraged to <a href="../../admin/upgrade">upgrade to 4.8.0</a>. The technical details of |
| this release are summarized below.</p> |
| |
| <h2 id="highlights">Highlights</h2> |
| |
| <p>The main features in 4.8.0 are around following areas:</p> |
| |
| <ul> |
| <li>Durability</li> |
| <li>ExplicitLAC feature</li> |
| <li>New Table Storage Service</li> |
| <li>Bug Fixes</li> |
| </ul> |
| |
| <h3 id="new-writeflag-deferred_sync">New WriteFlag DEFERRED_SYNC</h3> |
| |
| <p>The writer may ask for temporary relaxed durability writes, that is to receive early acknowledge from Bookies, before an fsync() on Journal. |
| Together with this new flag we introduced the new WriteHandle#force() API, this this API the writer is able to request an explicit guarantee of durability to the Bookies |
| it is mostly like and explicit fsync() on a file system.</p> |
| |
| <p>See <a href="../javadoc/org/apache/bookkeeper/client/api/WriteFlag"><code class="highlighter-rouge">DEFERRED_SYNC</code></a> and <a href="../javadoc/org/apache/bookkeeper/client/api/ForceableHandle">force()</a> for reference</p> |
| |
| <h3 id="new-behaviour-for-netty-bytebuf-reference-count-management">New behaviour for Netty ByteBuf reference count management</h3> |
| |
| <p>All the client side APIs which take ByteBufs now will have the net effect of decrementing by 1 the refcount. |
| This is consistent with general contract of Netty. |
| It is expected that the client passes the ownership of the ByteBuf to BookKeeper client.</p> |
| |
| <h3 id="multiple-active-entrylogs">Multiple Active Entrylogs</h3> |
| |
| <p>It is now possible on the Bookie to have multiple active entry loggers, |
| this new feature will help with compaction performance and some specific workloads.</p> |
| |
| <p>See <a href="https://github.com/apache/bookkeeper/issues/570">Multiple active entrylogs</a></p> |
| |
| <h3 id="table-storage-service">Table Storage Service</h3> |
| |
| <p>From this version we are providing the a table (key/value) service embedded in Bookies.</p> |
| |
| <p>See <a href="https://github.com/apache/bookkeeper/issues/1205">BP-30: BookKeeper Table Service</a></p> |
| |
| <h3 id="make-explicitlac-persistent">Make ExplicitLAC persistent</h3> |
| |
| <p>ExplicitLAC was contributed from Salesforce in 4.5.0 release, but in the first release |
| it was a beft-effort in-memory mechanism. Now you can configure Bookies to store durably ExplicitLAC.</p> |
| |
| <p>See <a href="https://github.com/apache/bookkeeper/issues/1527">Make ExplicitLAC persistent</a></p> |
| |
| <h3 id="ensemble-change-on-delayed-write-failure">Ensemble change on Delayed Write Failure</h3> |
| |
| <p>We are handling more gracefully the case of a failure of a Bookie in spite of a succeeded write. |
| If you are writing with Ack Quorum = 2 and Write Quorum = 3, writes will succeeed even if 1 of 3 Bookies fail, |
| now BookKeeper will trigger an <em>ensemble change</em> and replace the failed bookie earlier.</p> |
| |
| <p>See <a href="https://github.com/apache/bookkeeper/issues/1390">Ensemble change on Delayed Write Failure</a></p> |
| |
| <h2 id="full-list-of-changes">Full list of changes</h2> |
| |
| <ul> |
| <li><a href="https://github.com/apache/bookkeeper/milestone/4?closed=1">https://github.com/apache/bookkeeper/milestone/4</a></li> |
| </ul> |
| |
| </section> |
| |
| |
| </div> |
| </div> |
| |
| <div class="column is-2 is-hidden-mobile"> |
| |
| |
| <div class="toc"> |
| <h2 class="title">Apache BookKeeper 4.8.0 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="#new-writeflag-deferred_sync">New WriteFlag DEFERRED_SYNC</a></li> |
| <li class="toc-entry toc-h3"><a href="#new-behaviour-for-netty-bytebuf-reference-count-management">New behaviour for Netty ByteBuf reference count management</a></li> |
| <li class="toc-entry toc-h3"><a href="#multiple-active-entrylogs">Multiple Active Entrylogs</a></li> |
| <li class="toc-entry toc-h3"><a href="#table-storage-service">Table Storage Service</a></li> |
| <li class="toc-entry toc-h3"><a href="#make-explicitlac-persistent">Make ExplicitLAC persistent</a></li> |
| <li class="toc-entry toc-h3"><a href="#ensemble-change-on-delayed-write-failure">Ensemble change on Delayed Write Failure</a></li> |
| </ul> |
| </li> |
| <li class="toc-entry toc-h2"><a href="#full-list-of-changes">Full list of changes</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 © 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> |
