This is an automated email from the ASF dual-hosted git repository. dongeforever pushed a commit to branch asf-site in repository https://gitbox.apache.org/repos/asf/rocketmq-site.git
commit b19de76da7ddb17b33c144268e2b8eb7a21f461e Author: dongeforever <[email protected]> AuthorDate: Wed Dec 13 22:55:37 2017 +0800 Build --- content/about/contact/index.html | 4 +- content/about/rewards/index.html | 4 +- content/about/team/index.html | 4 +- content/categories/index.html | 32 ++ content/collection-archive/index.html | 2 + content/docs/batch-example/index.html | 4 +- content/docs/best-practice-broker/index.html | 4 +- content/docs/best-practice-consumer/index.html | 4 +- content/docs/best-practice-namesvr/index.html | 4 +- content/docs/best-practice-producer/index.html | 4 +- content/docs/broadcast-example/index.html | 4 +- content/docs/cli-admin-tool/index.html | 4 +- content/docs/cluster-deployment/index.html | 4 +- content/docs/code-guidelines/index.html | 4 +- content/docs/core-concept/index.html | 4 +- content/docs/create-pull-request/index.html | 4 +- content/docs/documentation/index.html | 4 +- content/docs/faq/index.html | 4 +- content/docs/filter-by-sql92-example/index.html | 4 +- content/docs/how-to-contribute/index.html | 4 +- content/docs/logappender-example/index.html | 4 +- content/docs/motivation/index.html | 4 +- content/docs/openmessaging-example/index.html | 4 +- content/docs/order-example/index.html | 4 +- content/docs/pull-request/index.html | 4 +- content/docs/quick-start/index.html | 4 +- content/docs/release-manual.html | 4 +- content/docs/rmq-arc/index.html | 4 +- content/docs/rmq-deployment/index.html | 4 +- content/docs/roadmap/index.html | 4 +- content/docs/schedule-example/index.html | 4 +- content/docs/simple-example/index.html | 4 +- content/docs/system-config/index.html | 4 +- content/dowloading/releases/index.html | 4 +- content/feed.xml | 379 ++++--------- .../release_notes/release-notes-4.2.0/index.html | 606 +++++++++++++++++++++ .../Field-Report-Meetup-Beijing/index.html | 3 +- content/sitemap.xml | 8 +- content/tags/index.html | 96 ++++ content/year-archive/index.html | 28 + 40 files changed, 933 insertions(+), 349 deletions(-) diff --git a/content/about/contact/index.html b/content/about/contact/index.html index 118ed02..e798bc0 100644 --- a/content/about/contact/index.html +++ b/content/about/contact/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -212,7 +212,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="CONTACT"> <meta itemprop="description" content="Contact."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 29, 2016"> <div class="page__inner-wrap"> diff --git a/content/about/rewards/index.html b/content/about/rewards/index.html index 31d0351..caacb56 100644 --- a/content/about/rewards/index.html +++ b/content/about/rewards/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -212,7 +212,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="REWARDS"> <meta itemprop="description" content="Rewards."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="January 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/about/team/index.html b/content/about/team/index.html index 8f6677b..fb9c2e7 100644 --- a/content/about/team/index.html +++ b/content/about/team/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -212,7 +212,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="TEAM"> <meta itemprop="description" content="Project team."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 29, 2016"> <div class="page__inner-wrap"> diff --git a/content/categories/index.html b/content/categories/index.html index 5b02287..68a4e80 100644 --- a/content/categories/index.html +++ b/content/categories/index.html @@ -351,6 +351,12 @@ <!-- If not equal to previous then it must be unique as sorted --> + + + +<!-- If not equal to previous then it must be unique as sorted --> + + <!-- Push to group_names --> @@ -525,6 +531,32 @@ January 5th 2017 <h2 class="archive__item-title" itemprop="headline"> + <a href="/release_notes/release-notes-4.2.0/" rel="permalink">Release Notes - Apache RocketMQ - Version 4.2.0 +</a> + + </h2> + + <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> + + + + + 2 minute read +</p> + + <p class="archive__item-excerpt" itemprop="description">Below is a summary of the JIRA issues addressed in the 4.2.0 release of RocketMQ. For full documentation of the release, a guide to get started, please refer...</p> + </article> +</div> + + + + + +<div class="list__item"> + <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork";> + + <h2 class="archive__item-title" itemprop="headline"> + <a href="/release_notes/release-notes-4.1.0-incubating/" rel="permalink">Release Notes - Apache RocketMQ - Version 4.1.0-incubating </a> diff --git a/content/collection-archive/index.html b/content/collection-archive/index.html index 8b38ef6..1181f4c 100644 --- a/content/collection-archive/index.html +++ b/content/collection-archive/index.html @@ -1030,6 +1030,8 @@ and the coordination is mainly achieved through managing...</p> + + diff --git a/content/docs/batch-example/index.html b/content/docs/batch-example/index.html index 31287cf..f5d624b 100644 --- a/content/docs/batch-example/index.html +++ b/content/docs/batch-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Batch Example"> <meta itemprop="description" content="How to use batch in Rocketmq"> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/best-practice-broker/index.html b/content/docs/best-practice-broker/index.html index a365897..d1a0f66 100644 --- a/content/docs/best-practice-broker/index.html +++ b/content/docs/best-practice-broker/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Best Practice For Broker"> <meta itemprop="description" content="Some useful tips for users."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 25, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/best-practice-consumer/index.html b/content/docs/best-practice-consumer/index.html index be4eeeb..f5d2d38 100644 --- a/content/docs/best-practice-consumer/index.html +++ b/content/docs/best-practice-consumer/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Best Practice For Consumer"> <meta itemprop="description" content="Some useful tips for users."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 25, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/best-practice-namesvr/index.html b/content/docs/best-practice-namesvr/index.html index 3750099..aba662b 100644 --- a/content/docs/best-practice-namesvr/index.html +++ b/content/docs/best-practice-namesvr/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Best Practice For NameServer"> <meta itemprop="description" content="In Apache RocketMQ, name servers are designed to coordinate each component of the distributed systemand the coordination is mainly achieved through managing topic routing information."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 25, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/best-practice-producer/index.html b/content/docs/best-practice-producer/index.html index 3b9b4d5..23fb576 100644 --- a/content/docs/best-practice-producer/index.html +++ b/content/docs/best-practice-producer/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Best Practice For Producer"> <meta itemprop="description" content="Some useful tips for users."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 25, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/broadcast-example/index.html b/content/docs/broadcast-example/index.html index abf273d..8bb53d0 100644 --- a/content/docs/broadcast-example/index.html +++ b/content/docs/broadcast-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Broadcasting"> <meta itemprop="description" content="How to send broadcast messages in Apache RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/cli-admin-tool/index.html b/content/docs/cli-admin-tool/index.html index 694474b..cf2e0cd 100644 --- a/content/docs/cli-admin-tool/index.html +++ b/content/docs/cli-admin-tool/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="CLI Admin Tool"> <meta itemprop="description" content="RocketMQ provides a CLI admin tool belt to query, manage and diagnose various issues."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 17, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/cluster-deployment/index.html b/content/docs/cluster-deployment/index.html index c3b6967..272184f 100644 --- a/content/docs/cluster-deployment/index.html +++ b/content/docs/cluster-deployment/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Cluster Configuration and Deployment"> <meta itemprop="description" content="Prerequisite"> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 17, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/code-guidelines/index.html b/content/docs/code-guidelines/index.html index dae844e..8de9e44 100644 --- a/content/docs/code-guidelines/index.html +++ b/content/docs/code-guidelines/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Coding Guidelines"> <meta itemprop="description" content="Apache RocketMQ Coding Guidelines"> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 30, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/core-concept/index.html b/content/docs/core-concept/index.html index f83bf37..06a1ab7 100644 --- a/content/docs/core-concept/index.html +++ b/content/docs/core-concept/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Core Concept"> <meta itemprop="description" content=""> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 17, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/create-pull-request/index.html b/content/docs/create-pull-request/index.html index 0f82bf1..087f987 100644 --- a/content/docs/create-pull-request/index.html +++ b/content/docs/create-pull-request/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="How to create Pull Request"> <meta itemprop="description" content="This page guides you through the pull request creation process."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 25, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/documentation/index.html b/content/docs/documentation/index.html index 1da5233..05f86a3 100644 --- a/content/docs/documentation/index.html +++ b/content/docs/documentation/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Documentation"> <meta itemprop="description" content="Apache RocketMQ Documentation"> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="March 02, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/faq/index.html b/content/docs/faq/index.html index 4467b40..73b6c27 100644 --- a/content/docs/faq/index.html +++ b/content/docs/faq/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Frequently Asked Questions"> <meta itemprop="description" content="The following questions are frequently asked with regard to the RocketMQ project in general.General1. Why did we create rocketmq project instead of selecting other products?Please refer to Why RocketMQ"> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 28, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/filter-by-sql92-example/index.html b/content/docs/filter-by-sql92-example/index.html index 3d43910..0bc295e 100644 --- a/content/docs/filter-by-sql92-example/index.html +++ b/content/docs/filter-by-sql92-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Filter Example"> <meta itemprop="description" content="How to filter messages by SQL92 in Apache RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 27, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/how-to-contribute/index.html b/content/docs/how-to-contribute/index.html index 915de94..1835da1 100644 --- a/content/docs/how-to-contribute/index.html +++ b/content/docs/how-to-contribute/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="How To Contribute"> <meta itemprop="description" content="Apache RocketMQ is developed by an open and friendly community. Everybody is cordially welcome to join the community and contribute to Apache RocketMQ. There are several ways to interact with the community and to contribute to RocketMQ including asking questions, filing bug reports, proposing new features, joining discussions on the mailing lists, contributing code or documentation, improving the website, or testing release candidates."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="August 24, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/logappender-example/index.html b/content/docs/logappender-example/index.html index 80268fb..ba6108d 100644 --- a/content/docs/logappender-example/index.html +++ b/content/docs/logappender-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Logappender Example"> <meta itemprop="description" content="How to use logappender in RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="June 09, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/motivation/index.html b/content/docs/motivation/index.html index b415a3a..44bf7c2 100644 --- a/content/docs/motivation/index.html +++ b/content/docs/motivation/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Motivation"> <meta itemprop="description" content="At early stages, we constructed our distributed messaging middleware based on ActiveMQ 5.x(prior to 5.3). Our multinational business uses it for asynchronous communication, search, social network activity stream, data pipeline,even in its trade processes. As our trade business throughput rises, pressure originating from our messaging clusteralso becomes urgent."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 17, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/openmessaging-example/index.html b/content/docs/openmessaging-example/index.html index c7d9958..7aa4e23 100644 --- a/content/docs/openmessaging-example/index.html +++ b/content/docs/openmessaging-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="OpenMessaging Example"> <meta itemprop="description" content="How to use OpenMessaging in RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="June 09, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/order-example/index.html b/content/docs/order-example/index.html index d42fb8d..e5b8088 100644 --- a/content/docs/order-example/index.html +++ b/content/docs/order-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Order Message"> <meta itemprop="description" content="How to send and receive ordered messages in Apache RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/pull-request/index.html b/content/docs/pull-request/index.html index ccb696c..fe8f800 100644 --- a/content/docs/pull-request/index.html +++ b/content/docs/pull-request/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="How to manage Pull Request"> <meta itemprop="description" content="This page guides you through Git setup and contribution process."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 25, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/quick-start/index.html b/content/docs/quick-start/index.html index 450e333..e890ee7 100644 --- a/content/docs/quick-start/index.html +++ b/content/docs/quick-start/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Quick Start"> <meta itemprop="description" content="How to quickly install and setup Apache RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="December 30, 2016"> <div class="page__inner-wrap"> diff --git a/content/docs/release-manual.html b/content/docs/release-manual.html index b5dc07d..199b57d 100644 --- a/content/docs/release-manual.html +++ b/content/docs/release-manual.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Release Manual"> <meta itemprop="description" content="Apache RocketMQ Release Manual"> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="February 08, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/rmq-arc/index.html b/content/docs/rmq-arc/index.html index dd08459..4c9914d 100644 --- a/content/docs/rmq-arc/index.html +++ b/content/docs/rmq-arc/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="RocketMQ Architecture"> <meta itemprop="description" content="The main Architecture of Apache RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/rmq-deployment/index.html b/content/docs/rmq-deployment/index.html index 1844635..15ce460 100644 --- a/content/docs/rmq-deployment/index.html +++ b/content/docs/rmq-deployment/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Deployment"> <meta itemprop="description" content="How to deploy the Apache RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/roadmap/index.html b/content/docs/roadmap/index.html index 05b3778..011cd3a 100644 --- a/content/docs/roadmap/index.html +++ b/content/docs/roadmap/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="The RoadMap of Apache RocketMQ"> <meta itemprop="description" content="4.1.0~4.3.0-incubating RoadMap:"> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="March 08, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/schedule-example/index.html b/content/docs/schedule-example/index.html index 2c425f4..1842fe3 100644 --- a/content/docs/schedule-example/index.html +++ b/content/docs/schedule-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Schedule example"> <meta itemprop="description" content="How to use schedule component to reduce pull in RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/simple-example/index.html b/content/docs/simple-example/index.html index c215a06..887bcfe 100644 --- a/content/docs/simple-example/index.html +++ b/content/docs/simple-example/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Simple Message Example"> <meta itemprop="description" content="How to send simple message to reduce pull in RocketMQ."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="April 25, 2017"> <div class="page__inner-wrap"> diff --git a/content/docs/system-config/index.html b/content/docs/system-config/index.html index 40f633f..cb85b75 100644 --- a/content/docs/system-config/index.html +++ b/content/docs/system-config/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="RocketMQ JVM/Linux Configuration"> <meta itemprop="description" content="This is an introduction for configuring RocketMQ broker JVM/OS parameters. It points out certain specified configurations that should be thinking about before deploying RocketMQ cluster."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="July 15, 2017"> <div class="page__inner-wrap"> diff --git a/content/dowloading/releases/index.html b/content/dowloading/releases/index.html index 464c59a..eb3be02 100644 --- a/content/dowloading/releases/index.html +++ b/content/dowloading/releases/index.html @@ -57,7 +57,7 @@ <meta property="og:type" content="article"> - <meta property="article:published_time" content="2017-10-09T19:05:19+08:00"> + <meta property="article:published_time" content="2017-12-13T22:55:11+08:00"> @@ -466,7 +466,7 @@ <article class="page" itemscope itemtype="http://schema.org/CreativeWork";> <meta itemprop="headline" content="Downloading the Apache RocketMQ Releases"> <meta itemprop="description" content="Compatibility GuideThe table below shows the supported jre environment for components of each release."> - <meta itemprop="datePublished" content="October 09, 2017"> + <meta itemprop="datePublished" content="December 13, 2017"> <meta itemprop="dateModified" content="February 21, 2017"> <div class="page__inner-wrap"> diff --git a/content/feed.xml b/content/feed.xml index b87696e..60b2238 100644 --- a/content/feed.xml +++ b/content/feed.xml @@ -1,4 +1,99 @@ -<?xml version="1.0" encoding="utf-8"?><?xml-stylesheet type="text/xml" href="/feed.xslt.xml"?><feed xmlns="http://www.w3.org/2005/Atom";><generator uri="http://jekyllrb.com"; version="3.3.1">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2017-10-09T19:05:19+08:00</updated><id>//</id><title type="html">Apache RocketMQ</title><subtitle>The homepage of RocketMQ.</subtitle><author><name>{"name&qu [...] +<?xml version="1.0" encoding="utf-8"?><?xml-stylesheet type="text/xml" href="/feed.xslt.xml"?><feed xmlns="http://www.w3.org/2005/Atom";><generator uri="http://jekyllrb.com"; version="3.3.1">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2017-12-13T22:55:11+08:00</updated><id>//</id><title type="html">Apache RocketMQ</title><subtitle>The homepage of RocketMQ.</subtitle><author><name>{"name&qu [...] + +<h2> Download the 4.2.0 release +</h2> +<ul> + <li>to be changed</li> + <li>Source: <a href="https://www.apache.org/dyn/closer.cgi?path=incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-source-release.zip">rocketmq-all-4.0.0-incubating-source-release.zip</a> [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-source-release.zip.asc">PGP</a>] [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0 [...] + <li>Binary: <a href="https://www.apache.org/dyn/closer.cgi?path=incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-bin-release.zip">rocketmq-all-4.0.0-incubating-bin-release.zip</a> [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-bin-release.zip.asc">PGP</a>] [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubati [...] +</ul> + +<h2 id="new-feature">New Feature</h2> + +<ul> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-28">ROCKETMQ-28</a>] - Support transportation layer security +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-224">ROCKETMQ-224</a>] - Suppport log4j2 in Client +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-294">ROCKETMQ-294</a>] - Support flow control by number and size dimensions for PushConsumer +</li> +</ul> + +<h2 id="improvement">Improvement</h2> + +<ul> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-6">ROCKETMQ-6</a>] - Use logger for exceptions instead of e.printStackTrace() +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-23">ROCKETMQ-23</a>] - Better to return true when MappedFileQueue#flush is successful +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-96">ROCKETMQ-96</a>] - Rename tmp variable +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-258">ROCKETMQ-258</a>] - Move benchmark scripts to distribution module +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-259">ROCKETMQ-259</a>] - Reduce reflection calls when decode remoting command header +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-263">ROCKETMQ-263</a>] - Reduce the cost of the unit test in OpenMessaging modules +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-266">ROCKETMQ-266</a>] - Polish the exception message when consumerThreadMax is smaller than consumerThreadMin +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-273">ROCKETMQ-273</a>] - Simplify the code when the method has no write operation +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-279">ROCKETMQ-279</a>] - Add consistent check for commit log data and consume queue data when start the broker +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-281">ROCKETMQ-281</a>] - Add check to prevent repeating starting broker +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-307">ROCKETMQ-307</a>] - Change JVM arguments for java 8 and direct memory GC +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-308">ROCKETMQ-308</a>] - Improve broker register speed by increasing socket buffer size of name server +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-311">ROCKETMQ-311</a>] - Add fast failure mechanism for pull-request queue of broker +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-312">ROCKETMQ-312</a>] - Use independent thread pool for QueryMessageProcessor +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-315">ROCKETMQ-315</a>] - Enhance default settings of TLS +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-323">ROCKETMQ-323</a>] - Release semaphore after callback is finished in async process +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-324">ROCKETMQ-324</a>] - Expose an interface for client to specify the async call back executor +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-327">ROCKETMQ-327</a>] - Add an interface to support decrypt a encrypted private key file +</li> +</ul> + +<h2 id="bug">Bug</h2> + +<ul> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-231">ROCKETMQ-231</a>] - Fix the pull result size +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-234">ROCKETMQ-234</a>] - Fix double-return bug in batch scenario +</li> + +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-238">ROCKETMQ-238</a>] - Make sure catch the exception in a periodic task of ScheduledExecutorService +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-242">ROCKETMQ-242</a>] - Make sure the client could fetch nameSrvAddr periodly +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-254">ROCKETMQ-254</a>] - Fix the random test failure of LoggerAppender and reduce the cost time +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-260">ROCKETMQ-260</a>] - Fix the wrong lock when destroy IndexService +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-270">ROCKETMQ-270</a>] - Make sure the slave broker could start normally if master broker has cleaned commit log +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-277">ROCKETMQ-277</a>] - Fix the exception in getLocalHost when server hostname not in hosts +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-284">ROCKETMQ-284</a>] - Make sure the sql filter is not conflict with old tag filter +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-285">ROCKETMQ-285</a>] - Fix the file test error when make link +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-291">ROCKETMQ-291</a>] - Fix the UnknownFormatConversionException of System.out.printf +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-292">ROCKETMQ-292</a>] - Fix exit problem in main thread when args parsing problem occurs +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-320">ROCKETMQ-320</a>] - Make sure no message loss when shutdown with dispatch behind +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-321">ROCKETMQ-321</a>] - Make sure do not delete mapped files in the middle +</li> + +</ul></content><author><name>{"name"=>nil, "avatar"=>"/assets/images/rmq-logo.png", "bio"=>"An open source distributed messaging and streaming data platform.", "location"=>"Hangzhou, China", "email"=>"[email protected]", "uri"=>"http://rocketmq.apache.org", "bitbucket"=>nil, "codepen"=>nil, "dribbble"=>nil, &quo [...] <p>It is really appreciated that over 300 RocketMQ or open source enthusiasts gathered in Institute of Software, Chinese Academy of Sciences, to attend this meetup in such a hot summer day. <img src="/assets/images/blog/meetup_beijing_group.jpg" alt="meetup_beijing_group" /></p> @@ -635,284 +730,4 @@ and fulfill much of this responsibility through managing topic route information <li>Rich Documentation and Good Test Cases Coverage</li> <li>Join by Creating Pull Requests against <a href="https://github.com/apache/rocketmq-externals/tree/master/rocketmq-flume">RocketMQ Flume Repository</a></li> </ol></content><author><name>{"name"=>nil, "avatar"=>"/assets/images/rmq-logo.png", "bio"=>"An open source distributed messaging and streaming data platform.", "location"=>"Hangzhou, China", "email"=>"[email protected]", "uri"=>"http://rocketmq.apache.org", "bitbucket"=>nil, "codepen"=>nil, "dribbble"=>nil, &quo [...] -January 5th 2017</summary></entry><entry><title type="html">Mastering Component Compatible Dependency</title><link href="/maven/mastering-component-compatible-dependency/" rel="alternate" type="text/html" title="Mastering Component Compatible Dependency" /><published>2016-12-23T00:00:00+08:00</published><updated>2016-12-23T00:00:00+08:00</updated><id>/maven/mastering-component-compatible-dependency</id><content type="html" xml:base="/maven/mastering-component-compatible-dependency/">< [...] - -<aside class="sidebar__right"> -<nav class="toc"> - <header><h4 class="nav__title"><i class="fa fa-file-text"></i> On This Page</h4></header> -<ul class="toc__menu" id="markdown-toc"> - <li><a href="#compatibility" id="markdown-toc-compatibility">Compatibility</a></li> - <li><a href="#component-compatible-dependency" id="markdown-toc-component-compatible-dependency">Component Compatible Dependency</a> <ul> - <li><a href="#interface-oriented-programming" id="markdown-toc-interface-oriented-programming">Interface-oriented programming</a></li> - <li><a href="#single-component-signature-protection" id="markdown-toc-single-component-signature-protection">Single component signature protection</a></li> - <li><a href="#single-component-compatibility-protection" id="markdown-toc-single-component-compatibility-protection">Single component compatibility protection</a></li> - <li><a href="#multi-component-compatibility-compile-time-checking" id="markdown-toc-multi-component-compatibility-compile-time-checking">Multi-component compatibility compile time checking</a></li> - </ul> - </li> - <li><a href="#summary" id="markdown-toc-summary">Summary</a></li> -</ul> - - </nav> -</aside> - -<h1 id="compatibility">Compatibility</h1> - -<p>what is compatibility？it is also the key to understanding the compatible dependency.Compatibility, often catch our eyes through two forms,<strong>binary compatibility</strong>,that means they can run the same executable code, typically machine code for a general purpose computer CPU.within the framework of Release-to-Release Binary Compatibility in SOM (Forman, Conner, Danforth, and Raper, Proceedings of OOPSLA ‘95), Java programming language binaries are binary comp [...] - -<ul> - <li>Reimplementing existing methods, constructors, and initializers to improve performance.</li> - <li>Changing methods or constructors to return values on inputs for which they previously either threw exceptions that normally should not occur or failed by going into an infinite loop or causing a deadlock.</li> - <li>Adding new fields, methods, or constructors to an existing class or interface.</li> - <li>Deleting private fields, methods, or constructors of a class.</li> - <li>When an entire package is updated, deleting default (package-only) access fields, methods, or constructors of classes and interfaces in the package.</li> - <li>Reordering the fields, methods, or constructors in an existing type declaration.</li> - <li>Moving a method upward in the class hierarchy.</li> - <li>Reordering the list of direct superinterfaces of a class or interface.</li> - <li>Inserting new class or interface types in the type hierarchy.</li> -</ul> - -<p>Generally,java language is <strong>upwards binary-compatible</strong> with previous version,such as Java SE 6 is upwards binary-compatible with J2SE 5.0 except for some minor incompatibilities.You can get details from <a href="http://www.oracle.com/technetwork/java/javase/compatibility-137541.html#binary">here</a>.</p> - -<p>Another compatibility form,we call it <strong>source compatibility</strong>,meaning that recompilation is necessary.Java language does not support downward source compatibility. Such as if source files use new language features or Java SE platform APIs, they will not be usable with an earlier version of the Java platform. Usually it will throw similar error like this:</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="n">java</span><span class="o">.</span><span class="na">lang</span><span class="o">.</span><span class="na">UnsupportedClassVersionError</span><span class="o">:</span> <span class="n">com</span><span class=" [...] - <span class="n">Unsupported</span> <span class="n">major</span><span class="o">.</span><span class="na">minor</span> <span class="n">version</span> <span class="mf">51.0</span> - <span class="n">at</span> <span class="n">java</span><span class="o">.</span><span class="na">lang</span><span class="o">.</span><span class="na">ClassLoader</span><span class="o">.</span><span class="na">defineClass1</span><span class="o">(</span><span class="n">Nativ [...] - <span class="n">at</span> <span class="n">java</span><span class="o">.</span><span class="na">lang</span><span class="o">.</span><span class="na">ClassLoader</span><span class="o">.</span><span class="na">defineClassCond</span><span class="o">(</span><span class="n">Un [...] -</code></pre> -</div> - -<p>Java language source compatibility policy is as follows,except for any incompatibilities listed further below:</p> - -<ul> - <li>Maintenance releases (such as 1.7.25, 1.7.26) do not introduce any new language features or APIs. They will maintain source-compatibility with each other.</li> - <li>Functionality releases and major releases (such as 1.4.0,5.0,6.0,7.0,8.0) maintain upwards but not downwards source-compatibility.</li> -</ul> - -<p>Let’s sum up before going on:</p> - -<ul> - <li>Document those incompatibility cases as much as possible, even some rare circumstances and corner cases.</li> - <li>Recommend developer to provide facilities that alert developers to the impact of changes on pre-existing binaries that cannot be recompiled.</li> - <li>Generally speaking,Binary Compatibility problems may occur in the following situations:</li> - <li><strong>Replacing the old with the new</strong>,such as the Java platform Profiling Architecture in the Java SE6,JVMDI was removed and JVMPI was disabled in Java SE 6.</li> - <li><strong>Combinatorial resolution</strong>,such as Non class files have been moved from rt.jar in Java SE 6.if -Xbootclasspath:<path to="" rt.jar=""> is specified,and request any resource files will fail since these resources now reside in a different jar file called resources.jar.</path></li> - <li><strong>Behavior change</strong>,such as Java SE 6 will throw an OverlappingFileLockException,if the application attempts to lock the overlapping region other instances of FileChannel that has been locked, in order to realize the backward compatibility, it provides disableSystemWideOverlappingFileLockCheck system properties. again, also in Java SE 6, jar will preserve file modification dates and times during extract, through the sun.tools.jar.useExtractionTime=tru [...] - <li><strong>Structure change</strong>,this is also the key problem to solve in <strong>Dependency Mediator</strong> project. generally speaking,modification and deletion belonging to incompatible operations.and more attentions must be paid in the RPC service maintenance, more detailed description,please refer to an <a href="http://blog.csdn.net/fengjia10/article/details/7799227">article</a> I wrote before. also you can read the the th [...] -</ul> - -<h1 id="component-compatible-dependency">Component Compatible Dependency</h1> - -<p>This article don’t talk about <strong>dependency analysis</strong> and <strong>dependency decoupling</strong>,if you care these topics,please read <a href="http://java.dzone.com/articles/dependency-analysis-and-1">Dependency Analysis and the Modularisation of Java Programs</a>.highly recommending you try to dive into open source project <a href="http://xplrarc.massey.ac.nz/">Architecture Explorer</a>,through bce [...] - -<p>Let’s return,ask yourself，have you ever been disturbed by the following problems?</p> - -<ul> - <li>Your service depend a volatile service,volatile means your service depending neither an abstract class nor a interface,this class update at irregular intervals,you often encountered errors such as <strong>NoSuchMethodError</strong>,<strong>NoSuchFieldError</strong> and <strong>NoClassDefFoundError</strong> etc.</li> - <li>You are developing a new feature,but this feature can not backward compatible with previous version, -what should you do ? How do you give a incompatible list in your release report.</li> - <li>Java language library is a superb collection of beautiful things,how do you make a rational dependency exclusion and effective mediate various dependency problems when developing.</li> -</ul> - -<p>It is the time to introduce the key idea - <strong>Mediating Components Compatible Dependency</strong>.Specifically,it includs the following basic principles:</p> - -<ul> - <li>Interface-oriented programming</li> - <li>Single component signature protection</li> - <li>Single component compatibility protection</li> - <li>Multi-component compatibility compile time checking</li> -</ul> - -<h2 id="interface-oriented-programming">Interface-oriented programming</h2> - -<p>Interface-oriented programming,It’s easier said than done.I will cite SLF4J design philosophy explain this principle.</p> - -<p>Differing from commons logging,SLF4J use <strong>static binder technology</strong> so as to avoid notorious <a href="http://articles.qos.ch/classloader.html">classloader problem</a>,every concrete log implementation must -have a class named StaticLoggerBinder and implementing SLF4J spi LoggerFactoryBinder.thus you just depend SLF4J api,not concerned about underlying implementation.some people may asking,why choose SLF4J not commons logging，I can also depend commons logging api but not concret implementation？it’s not performance but classloader problem.JCL discovery process relies on classloader hacks to find the logging framework at runtime but this mechanism leads to numerous problems including unexpecte [...] - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="c1">// We need to use the name of the StaticLoggerBinder class, but we can't reference</span> -<span class="c1">// the class itself.</span> -<span class="kd">private</span> <span class="kd">static</span> <span class="n">String</span> <span class="n">STATIC_LOGGER_BINDER_PATH</span> <span class="o">=</span> <span class="s">"org/slf4j/impl/StaticLoggerBinder.class"</span><span class="o">;</span> - <span class="cm">/** - * It is LoggerFactory's responsibility to track version changes and manage - * the compatibility list. - * It is assumed that all versions in the 1.6 are mutually compatible. - */</span> -<span class="kd">static</span> <span class="kd">private</span> <span class="kd">final</span> <span class="n">String</span><span class="o">[]</span> <span class="n">API_COMPATIBILITY_LIST</span> <span class="o">=</span> <span class="k">new</span> <span class="n">String</span><span class=&quo [...] - -<span class="c1">// private constructor prevents instantiation</span> -<span class="kd">private</span> <span class="nf">LoggerFactory</span><span class="o">()</span> <span class="o">{}</span> -<span class="kd">private</span> <span class="kd">final</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">versionSanityCheck</span><span class="o">()</span> <span class="o">{</span> - <span class="k">try</span> <span class="o">{</span> - <span class="n">String</span> <span class="n">requested</span> <span class="o">=</span> <span class="n">StaticLoggerBinder</span><span class="o">.</span><span class="na">REQUESTED_API_VERSION</span><span class="o">;</span> - <span class="kt">boolean</span> <span class="n">match</span> <span class="o">=</span> <span class="kc">false</span><span class="o">;</span> - <span class="k">for</span> <span class="o">(</span><span class="kt">int</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o">&lt;</span> <span class="n">API_COMPATIBILITY_LIST [...] - <span class="k">if</span> <span class="o">(</span><span class="n">requested</span><span class="o">.</span><span class="na">startsWith</span><span class="o">(</span><span class="n">API_COMPATIBILITY_LIST</span><span class="o">[</span><span class="n">i</span><span class="o"> [...] - <span class="n">match</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span> - <span class="o">}</span> - <span class="o">}</span> - <span class="k">if</span> <span class="o">(!</span><span class="n">match</span><span class="o">)</span> <span class="o">{</span> - <span class="n">Util</span><span class="o">.</span><span class="na">report</span><span class="o">(</span><span class="s">"The requested version "</span> <span class="o">+</span> <span class="n">requested</span> - <span class="o">+</span> <span class="s">" by your slf4j binding is not compatible with "</span> - <span class="o">+</span> <span class="n">Arrays</span><span class="o">.</span><span class="na">asList</span><span class="o">(</span><span class="n">API_COMPATIBILITY_LIST</span><span class="o">).</span><span class="na">toString</span><span class="o">());</span> - <span class="n">Util</span><span class="o">.</span><span class="na">report</span><span class="o">(</span><span class="s">"See "</span> <span class="o">+</span> <span class="n">VERSION_MISMATCH</span> <span class="o">+</span> <span class="s">" for further details."</span& [...] - <span class="o">}</span> -<span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">java</span><span class="o">.</span><span class="na">lang</span><span class="o">.</span><span class="na">NoSuchFieldError</span> <span class="n">nsfe</span><span class="o">)</span> [...] - <span class="c1">// given our large user base and SLF4J's commitment to backward</span> - <span class="c1">// compatibility, we cannot cry here. Only for implementations</span> - <span class="c1">// which willingly declare a REQUESTED_API_VERSION field do we</span> - <span class="c1">// emit compatibility warnings.</span> -<span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="n">Throwable</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span> - <span class="c1">// we should never reach here</span> - <span class="n">Util</span><span class="o">.</span><span class="na">report</span><span class="o">(</span><span class="s">"Unexpected problem occured during version sanity check"</span><span class="o">,</span> <span class="n">e</span><span class="o">);</span> - <span class="o">}</span> -<span class="o">}</span> -</code></pre> -</div> - -<p>you can use these skills at your library.just Let others depend on your interface package,detecting certain implementation statically.</p> - -<p>If you have developed an old version library,naming it as 2.x.x.next version,you hope to refactor some implementations,how to process multi-version compatibility?here is a skill from maven dependency plugin:</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="n">String</span> <span class="n">hint</span> <span class="o">=</span> <span class="n">isMaven31</span><span class="o">()</span> <span class="o">?</span> <span class="s">"maven31"</span> <span class=&q [...] - -<span class="cm">/** -* Check the current Maven version to see if it's Maven 2.x. -*/</span> -<span class="kd">protected</span> <span class="kd">static</span> <span class="kt">boolean</span> <span class="nf">isMaven2x</span><span class="o">()</span> -<span class="o">{</span> - <span class="k">return</span> <span class="o">!</span><span class="n">canFindCoreClass</span><span class="o">(</span> <span class="s">"org.apache.maven.project.DependencyResolutionRequest"</span> <span class="o">);</span> <span class="c1">// Maven 3 specific</span> -<span class="o">}</span> - -<span class="cm">/** -* Check the current Maven version to see if it's Maven 3.1. -*/</span> -<span class="kd">protected</span> <span class="kd">static</span> <span class="kt">boolean</span> <span class="nf">isMaven31</span><span class="o">()</span> -<span class="o">{</span> - <span class="k">return</span> <span class="nf">canFindCoreClass</span><span class="o">(</span> <span class="s">"org.eclipse.aether.artifact.Artifact"</span> <span class="o">);</span> <span class="c1">// Maven 3.1 specific</span> -<span class="o">}</span> -</code></pre> -</div> - -<h2 id="single-component-signature-protection">Single component signature protection</h2> - -<p>Secondly,Single component signature protection,you can using <a href="http://mojo.codehaus.org/animal-sniffer/">Animal Sniffer project</a> as well-known Guava library,Animal Sniffer provides tools to assist verifying that classes compiled with a newer JDK/API are compatible with an older JDK/API.</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="o">&lt;</span><span class="n">plugin</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">groupId</span><span class="o">&gt;</span><span class="n">org</span><span class="o">.</span><span class="na">codehaus</span><span class="o">.</span><span class="na">mojo</span><span class="o">&lt;/</span><span class="n">g [...] - <span class="o">&lt;</span><span class="n">artifactId</span><span class="o">&gt;</span><span class="n">animal</span><span class="o">-</span><span class="n">sniffer</span><span class="o">-</span><span class="n">maven</span><span class="o">-</span><span class="n">plugi [...] - <span class="o">&lt;</span><span class="n">configuration</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">signature</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">groupId</span><span class="o">&gt;</span><span class="n">org</span><span class="o">.</span><span class="na">codehaus</span><span class="o">.</span><span class="na">mojo</span><span class="o">.</span><span class="na">sign [...] - <span class="o">&lt;</span><span class="n">artifactId</span><span class="o">&gt;</span><span class="n">java16</span><span class="o">-</span><span class="n">sun</span><span class="o">&lt;/</span><span class="n">artifactId</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">version</span><span class="o">&gt;</span><span class="mf">1.0</span><span class="o">&lt;/</span><span class="n">version</span><span class="o">&gt;</span> - <span class="o">&lt;/</span><span class="n">signature</span><span class="o">&gt;</span> - <span class="o">&lt;/</span><span class="n">configuration</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">executions</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">execution</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">id</span><span class="o">&gt;</span><span class="n">check</span><span class="o">-</span><span class="n">java16</span><span class="o">-</span><span class="n">sun</span><span class="o">&lt;/</span><span class="n">id< [...] - <span class="o">&lt;</span><span class="n">phase</span><span class="o">&gt;</span><span class="n">test</span><span class="o">&lt;/</span><span class="n">phase</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">goals</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">goal</span><span class="o">&gt;</span><span class="n">check</span><span class="o">&lt;/</span><span class="n">goal</span><span class="o">&gt;</span> - <span class="o">&lt;/</span><span class="n">goals</span><span class="o">&gt;</span> - <span class="o">&lt;/</span><span class="n">execution</span><span class="o">&gt;</span> - <span class="o">&lt;/</span><span class="n">executions</span><span class="o">&gt;</span> - <span class="o">&lt;/</span><span class="n">plugin</span><span class="o">&gt;</span> -</code></pre> -</div> - -<p>So from now on, when you performing a mvn test or mvn install operation. If there is an incompatibility in one of the projects, you would find some output like this:</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="o">[</span><span class="n">INFO</span><span class="o">]</span> <span class="o">[</span><span class="n">animal</span><span class="o">-</span><span class="nl">sniffer:</span><span class="n">check< [...] -<span class="o">[</span><span class="n">INFO</span><span class="o">]</span> <span class="n">Checking</span> <span class="n">unresolved</span> <span class="n">references</span> <span class="n">to</span> <span class="n">org</span><span class="o">.</span><span class="na">codehaus& [...] -<span class="o">[</span><span class="n">ERROR</span><span class="o">]</span> <span class="n">Undefined</span> <span class="nl">reference:</span> <span class="n">java</span><span class="o">/</span><span class="n">lang</span><span class="o">/</span><span class="n">String</span [...] -</code></pre> -</div> - -<p>More details please see <a href="http://blog.gvsig.org/2011/07/25/hunting-api-incompatibilities-with-the-animal-sniffer-project/">here</a>.</p> - -<h2 id="single-component-compatibility-protection">Single component compatibility protection</h2> - -<p>If your a SOA develper,you almost concerned with single component compatibility protection.[Clirr project] (http://clirr.sourceforge.net/) may be your best choice.Clirr is a tool that checks Java libraries for binary and source compatibility with older releases. Basically you give it two sets of jar files and Clirr dumps out a list of changes in the public api. The Clirr Ant task can be configured to break the build if it detects incompatible api changes. In a continuous integra [...] - -<p>How to use it？just add some config snippets in your pom :</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="o">&lt;</span><span class="n">plugin</span><span class="o">&gt;</span> - <span class="o">&lt;</span><span class="n">groupId</span><span class="o">&gt;</span><span class="n">org</span><span class="o">.</span><span class="na">codehaus</span><span class="o">.</span><span class="na">mojo</span><span class="o">&lt;/</span><span class="n">gr [...] - <span class="o">&lt;</span><span class="n">artifactId</span><span class="o">&gt;</span><span class="n">clirr</span><span class="o">-</span><span class="n">maven</span><span class="o">-</span><span class="n">plugin</span><span class="o">&lt;/</span><span class="n"> [...] - <span class="o">&lt;</span><span class="n">version</span><span class="o">&gt;</span><span class="mf">2.6</span><span class="o">.</span><span class="mi">1</span><span class="o">&lt;/</span><span class="n">version</span><span class="o">&gt;</span> -<span class="o">&lt;/</span><span class="n">plugin</span><span class="o">&gt;</span> -</code></pre> -</div> - -<p>then,run <code class="highlighter-rouge">mvn clirr:check</code>,output may be like this:</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="o">[</span><span class="n">INFO</span><span class="o">]</span> <span class="o">---</span> <span class="n">clirr</span><span class="o">-</span><span class="n">maven</span><span class="o">-</span& [...] -<span class="o">[</span><span class="n">INFO</span><span class="o">]</span> <span class="n">artifact</span> <span class="n">com</span><span class="o">.</span><span class="na">alibaba</span><span class="o">.</span><span class="na">intl</span><span class="o">.</span><spa [...] -<span class="o">[</span><span class="n">INFO</span><span class="o">]</span> <span class="n">Comparing</span> <span class="n">to</span> <span class="nl">version:</span> <span class="mf">2.0</span><span class="o">.</span><span class="mi">1</span> -<span class="o">[</span><span class="n">ERROR</span><span class="o">]</span> <span class="mi">7005</span><span class="o">:</span> <span class="n">com</span><span class="o">.</span><span class="na">alibaba</span><span class="o">.</span><span class="na">mq</span><span cl [...] -<span class="o">[</span><span class="n">ERROR</span><span class="o">]</span> <span class="mi">7005</span><span class="o">:</span> <span class="n">com</span><span class="o">.</span><span class="na">alibaba</span><span class="o">.</span><span class="na">mq</span><span cl [...] -<span class="o">[</span><span class="n">ERROR</span><span class="o">]</span> <span class="mi">7005</span><span class="o">:</span> <span class="n">com</span><span class="o">.</span><span class="na">alibaba</span><span class="o">.</span><span class="na">mq</span><span cl [...] -<span class="o">[</span><span class="n">ERROR</span><span class="o">]</span> <span class="mi">7005</span><span class="o">:</span> <span class="n">com</span><span class="o">.</span><span class="na">alibaba</span><span class="o">.</span><span class="na">mq</span><span cl [...] -</code></pre> -</div> - -<p>Some inspiration in <strong>Dependency Mediator</strong> project just come from here.more topics about compatible,you can reference from series article <a href="http://wiki.eclipse.org/index.php/Evolving_Java-based_APIs">Evolving Java-based APIs</a></p> - -<h2 id="multi-component-compatibility-compile-time-checking">Multi-component compatibility compile time checking</h2> - -<p>Last but not least,Multi-component compatibility compile time checking.it’s the time to formally recommend project <strong>Dependency Mediator</strong>.</p> - -<p>unlike karaf and other lightness modular technology(like osgi,class names do not need to be unique,but the combination of class names and their defining ClassLoader must to be unique),<strong>Dependency Mediator</strong> try to remedy component dependency conflicting problem before the runtime rather than using customized <a href="http://www.onjava.com/pub/a/onjava/2005/04/13/dependencies.html">classLoader</a> to agree with the coexistence of di [...] - -<p>What is the principle of <strong>Dependency Mediator</strong>？<strong>Dependency Mediator</strong> try to mediate various component conflicting problems.It uses jar or class as the smallest component unit,that is ComponentEntry:</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">ComponentEntry</span> <span class="kd">implements</span> <span class="n">Comparable</span><span class="o">&lt;</span><span class="n">ComponentEntry< [...] - <span class="cm">/** - * Similar file name - */</span> - <span class="kd">private</span> <span class="n">String</span> <span class="n">pathName</span><span class="o">;</span> - <span class="cm">/** - * Component name ,such as fully-qualified class name or jar name - */</span> - <span class="kd">private</span> <span class="n">String</span> <span class="n">name</span><span class="o">;</span> - <span class="cm">/** - * Name of the jar which contains this entry,this field may be null - */</span> - <span class="kd">private</span> <span class="n">String</span> <span class="n">jarName</span><span class="o">;</span> - <span class="cm">/** - * Jar entry meta info,if it is a jar file,this field may be null - */</span> - <span class="kd">private</span> <span class="n">JarEntry</span> <span class="n">entry</span><span class="o">;</span> - <span class="o">....</span> -</code></pre> -</div> - -<p>It could scan directory(also including classpath,if you set system property scanClasspath) and POM.if it happen to jar,but you setting checkJars to false,it could detect inner MANIFEST file,using <strong>Build-Jdk</strong> and <strong>Built-By</strong> properties to decide whether duplicated jars.thus,output only report whether including duplicated jar.but if you -setting checkJars to true or nothing to do with this property,it will further analyzes whether existing incompatible cases.</p> - -<p>It also provides a maven plugin,if your project is a web project,you must run mvn insall before next step. Maven plugin also comply with the latest annotation mojo api rather than version 2.x.x doclet api.</p> - -<p><strong>Dependency Mediator</strong> take advantage of <strong>nearest definition</strong> dependency mediation strategy. this determines what version of a dependency will be used when multiple versions of an artifact are encountered. <strong>nearest definition</strong>,means that it will use the version of the closest dependency to your project in the tree of dependencies. You can always guarantee a version by declaring it explicitly in your [...] -<strong>nearest definition</strong> means that the version used will be the closest one to your project in the tree of dependencies, eg. if dependencies for A, B, and C are defined as A -&gt; B -&gt; C -&gt; D 2.0 and A -&gt; E -&gt; D 1.0, then D 1.0 will be used when building A because the path from A to D through E is shorter. You could explicitly add a dependency to D 2.0 in A to force the use of D 2.0.</p> - -<p>If you consider the dependency hierarchy as a binary tree structure,Undoubtedly,<strong>nearest definition</strong> means the <strong>minimum depth</strong>. so if you put some higher version dependency library after lower version one(may be transitive dependency),you will face incompatible conflicting problems.Such as :</p> - -<div class="language-java highlighter-rouge"><pre class="highlight"><code><span class="o">[</span><span class="n">WARNING</span><span class="o">]</span> <span class="n">Founded</span> <span class="n">conflicting</span> <span class="n">dependency</span> <span class="nl">component:</span><span clas [...] -</code></pre> -</div> - -<p>In this case,you could fix this problem through place libthrift 0.9.1 before the library imported through transitive dependency.</p> - -<p>of course,all the establishment must meet a premise,that is:</p> -<ul> - <li><strong>Functionality releases and major releases(such as 1.4.x, 1.5.x,2.x.x,3.x.x) have source compatibility problems.</strong></li> -</ul> - -<p>In <strong>Dependency Mediator</strong> 2.0 version,you could customize version differentiation strategy,not limited the aformentioned.by the way, also in 2.0,I will improvement compatible dependency mediator, please wait and see.</p> - -<h1 id="summary">Summary</h1> - -<p>Through this article, you almost calculated the evolution process of the <strong>Dependency Mediator</strong> project.in my opinion,integration with the maven enforcer plugin may be a better choice.After all,I hope <strong>Dependency Mediator</strong> can keep sustainable development.I would try and donate this project to codehaus in the near future.</p> - -<p>If you have better idea or improving suggestion, please contact <a href="mailto:[email protected]">[email protected]</a>.</p></content><author><name>{"name"=>nil, "avatar"=>"/assets/images/rmq-logo.png", "bio"=>"An open source distributed messaging and streaming data platform.", "location"=>"Hangzhou, China", "email"=>"[email protected] [...] +January 5th 2017</summary></entry></feed> diff --git a/content/release_notes/release-notes-4.2.0/index.html b/content/release_notes/release-notes-4.2.0/index.html new file mode 100644 index 0000000..92bf6b2 --- /dev/null +++ b/content/release_notes/release-notes-4.2.0/index.html @@ -0,0 +1,606 @@ +<!doctype html> +<html lang="en" class="no-js"> + <head> + <meta charset="utf-8"> + +<!-- begin SEO --> + + + + + + + + + +<title>Release Notes - Apache RocketMQ - Version 4.2.0 - Apache RocketMQ</title> + + + + +<meta name="description" content="Below is a summary of the JIRA issues addressed in the 4.2.0 release of RocketMQ. 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For full documentation of the release, a guide to get started, please refer to Quick Start."> + <meta itemprop="datePublished" content="December 13, 2017"> + + + <div class="page__inner-wrap"> + + <header> + <h1 class="page__title" itemprop="headline">Release Notes - Apache RocketMQ - Version 4.2.0 +</h1> + + <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> + + + + + 2 minute read +</p> + + </header> + + + <section class="page__content" itemprop="text"> + <p>Below is a summary of the JIRA issues addressed in the 4.2.0 release of RocketMQ. For full documentation of the release, a guide to get started, please refer to <a href="/docs/quick-start/">Quick Start</a>.</p> + +<h2> Download the 4.2.0 release +</h2> +<ul> + <li>to be changed</li> + <li>Source: <a href="https://www.apache.org/dyn/closer.cgi?path=incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-source-release.zip";>rocketmq-all-4.0.0-incubating-source-release.zip</a> [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-source-release.zip.asc";>PGP</a>] [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-source-release.zip.md5";>MD5</a>] [<a href="htt [...] + <li>Binary: <a href="https://www.apache.org/dyn/closer.cgi?path=incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-bin-release.zip";>rocketmq-all-4.0.0-incubating-bin-release.zip</a> [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-bin-release.zip.asc";>PGP</a>] [<a href="https://www.apache.org/dist/incubator/rocketmq/4.0.0-incubating/rocketmq-all-4.0.0-incubating-bin-release.zip.md5";>MD5</a>] [<a href="https://www.apa [...] +</ul> + +<h2 id="new-feature">New Feature</h2> + +<ul> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-28";>ROCKETMQ-28</a>] - Support transportation layer security +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-224";>ROCKETMQ-224</a>] - Suppport log4j2 in Client +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-294";>ROCKETMQ-294</a>] - Support flow control by number and size dimensions for PushConsumer +</li> +</ul> + +<h2 id="improvement">Improvement</h2> + +<ul> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-6";>ROCKETMQ-6</a>] - Use logger for exceptions instead of e.printStackTrace() +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-23";>ROCKETMQ-23</a>] - Better to return true when MappedFileQueue#flush is successful +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-96";>ROCKETMQ-96</a>] - Rename tmp variable +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-258";>ROCKETMQ-258</a>] - Move benchmark scripts to distribution module +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-259";>ROCKETMQ-259</a>] - Reduce reflection calls when decode remoting command header +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-263";>ROCKETMQ-263</a>] - Reduce the cost of the unit test in OpenMessaging modules +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-266";>ROCKETMQ-266</a>] - Polish the exception message when consumerThreadMax is smaller than consumerThreadMin +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-273";>ROCKETMQ-273</a>] - Simplify the code when the method has no write operation +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-279";>ROCKETMQ-279</a>] - Add consistent check for commit log data and consume queue data when start the broker +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-281";>ROCKETMQ-281</a>] - Add check to prevent repeating starting broker +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-307";>ROCKETMQ-307</a>] - Change JVM arguments for java 8 and direct memory GC +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-308";>ROCKETMQ-308</a>] - Improve broker register speed by increasing socket buffer size of name server +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-311";>ROCKETMQ-311</a>] - Add fast failure mechanism for pull-request queue of broker +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-312";>ROCKETMQ-312</a>] - Use independent thread pool for QueryMessageProcessor +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-315";>ROCKETMQ-315</a>] - Enhance default settings of TLS +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-323";>ROCKETMQ-323</a>] - Release semaphore after callback is finished in async process +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-324";>ROCKETMQ-324</a>] - Expose an interface for client to specify the async call back executor +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-327";>ROCKETMQ-327</a>] - Add an interface to support decrypt a encrypted private key file +</li> +</ul> + +<h2 id="bug">Bug</h2> + +<ul> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-231";>ROCKETMQ-231</a>] - Fix the pull result size +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-234";>ROCKETMQ-234</a>] - Fix double-return bug in batch scenario +</li> + +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-238";>ROCKETMQ-238</a>] - Make sure catch the exception in a periodic task of ScheduledExecutorService +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-242";>ROCKETMQ-242</a>] - Make sure the client could fetch nameSrvAddr periodly +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-254";>ROCKETMQ-254</a>] - Fix the random test failure of LoggerAppender and reduce the cost time +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-260";>ROCKETMQ-260</a>] - Fix the wrong lock when destroy IndexService +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-270";>ROCKETMQ-270</a>] - Make sure the slave broker could start normally if master broker has cleaned commit log +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-277";>ROCKETMQ-277</a>] - Fix the exception in getLocalHost when server hostname not in hosts +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-284";>ROCKETMQ-284</a>] - Make sure the sql filter is not conflict with old tag filter +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-285";>ROCKETMQ-285</a>] - Fix the file test error when make link +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-291";>ROCKETMQ-291</a>] - Fix the UnknownFormatConversionException of System.out.printf +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-292";>ROCKETMQ-292</a>] - Fix exit problem in main thread when args parsing problem occurs +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-320";>ROCKETMQ-320</a>] - Make sure no message loss when shutdown with dispatch behind +</li> +<li>[<a href="https://issues.apache.org/jira/browse/ROCKETMQ-321";>ROCKETMQ-321</a>] - Make sure do not delete mapped files in the middle +</li> + +</ul> + + + + </section> + + <footer class="page__meta"> + + + + + + + + + + <p class="page__taxonomy"> + <strong><i class="fa fa-fw fa-tags" aria-hidden="true"></i> Tags: </strong> + <span itemprop="keywords"> + + + + <a href="/tags/#release-notes" class="page__taxonomy-item" rel="tag">Release_Notes</a><span class="sep">, </span> + + + + <a href="/tags/#rocketmq" class="page__taxonomy-item" rel="tag">RocketMQ</a><span class="sep">, </span> + + + + <a href="/tags/#version" class="page__taxonomy-item" rel="tag">Version</a> + + </span> + </p> + + + + + + + + + + + + <p class="page__taxonomy"> + <strong><i class="fa fa-fw fa-folder-open" aria-hidden="true"></i> Categories: </strong> + <span itemprop="keywords"> + + + + <a href="/categories/#release-notes" class="page__taxonomy-item" rel="tag">Release_Notes</a> + + </span> + </p> + + + + <p class="page__date"><strong><i class="fa fa-fw fa-calendar" aria-hidden="true"></i> Updated:</strong> <time datetime="2017-12-13T00:00:00+08:00">December 13, 2017</time></p> + + </footer> + + <section class="page__share"> + + <h4 class="page__share-title">Share on</h4> + + + <a href="https://twitter.com/intent/tweet?via=ApacheRocketMQ&text=Release Notes - 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For full documentation of the release, a guide to get started, please refer...</p> + </article> +</div> + + + + + +<div class="list__item"> + <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork";> + + <h2 class="archive__item-title" itemprop="headline"> + <a href="/release_notes/release-notes-4.0.0-incubating/" rel="permalink">Release Notes - Apache RocketMQ - Version 4.0.0-incubating </a> @@ -1128,6 +1172,32 @@ and fulfill much of this responsibility through managing...</p> <h2 class="archive__item-title" itemprop="headline"> + <a href="/release_notes/release-notes-4.2.0/" rel="permalink">Release Notes - Apache RocketMQ - Version 4.2.0 +</a> + + </h2> + + <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> + + + + + 2 minute read +</p> + + <p class="archive__item-excerpt" itemprop="description">Below is a summary of the JIRA issues addressed in the 4.2.0 release of RocketMQ. For full documentation of the release, a guide to get started, please refer...</p> + </article> +</div> + + + + + +<div class="list__item"> + <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork";> + + <h2 class="archive__item-title" itemprop="headline"> + <a href="/rocketmq/filter-messages-by-sql92-in-rocketmq/" rel="permalink">Filter Messages By SQL92 In RocketMQ </a> @@ -1239,6 +1309,32 @@ and fulfill much of this responsibility through managing...</p> <h2 class="archive__item-title" itemprop="headline"> + <a href="/release_notes/release-notes-4.2.0/" rel="permalink">Release Notes - Apache RocketMQ - Version 4.2.0 +</a> + + </h2> + + <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> + + + + + 2 minute read +</p> + + <p class="archive__item-excerpt" itemprop="description">Below is a summary of the JIRA issues addressed in the 4.2.0 release of RocketMQ. For full documentation of the release, a guide to get started, please refer...</p> + </article> +</div> + + + + + +<div class="list__item"> + <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork";> + + <h2 class="archive__item-title" itemprop="headline"> + <a href="/release_notes/release-notes-4.0.0-incubating/" rel="permalink">Release Notes - Apache RocketMQ - Version 4.0.0-incubating </a> diff --git a/content/year-archive/index.html b/content/year-archive/index.html index 2d62ab2..0ff5205 100644 --- a/content/year-archive/index.html +++ b/content/year-archive/index.html @@ -300,6 +300,34 @@ <h2 class="archive__item-title" itemprop="headline"> + <a href="/release_notes/release-notes-4.2.0/" rel="permalink">Release Notes - Apache RocketMQ - Version 4.2.0 +</a> + + </h2> + + <p class="page__meta"><i class="fa fa-clock-o" aria-hidden="true"></i> + + + + + 2 minute read +</p> + + <p class="archive__item-excerpt" itemprop="description">Below is a summary of the JIRA issues addressed in the 4.2.0 release of RocketMQ. For full documentation of the release, a guide to get started, please refer...</p> + </article> +</div> + + + + + + + +<div class="list__item"> + <article class="archive__item" itemscope itemtype="http://schema.org/CreativeWork";> + + <h2 class="archive__item-title" itemprop="headline"> + <a href="/rocketmq/Field-Report-Meetup-Beijing/" rel="permalink">Field Report of Apache RocketMQ Meetup Beijing </a> -- To stop receiving notification emails like this one, please contact "[email protected]" <[email protected]>.
