Today I troubleshooted an Elasticsearch-cluster-down issue.

Several lessons were learned:

  1. When many elasticsearch cluster nodes are restarted, to avoid HEAP spike, better to temporarily stop all connection attempts;
  2. Avoid setting allow_primary=true when reroute shards via API;
  3. Don’t forget backup! It could save you some day!

View Details

Elasticsearch Mantanence Lessons Learned Today的更多相关文章

  1. Lessons learned from manually classifying CIFAR-10

    Lessons learned from manually classifying CIFAR-10 Apr 27, 2011 CIFAR-10 Note, this post is from 201 ...

  2. 翻译 | Improving Distributional Similarity with Lessons Learned from Word Embeddings

    翻译 | Improving Distributional Similarity with Lessons Learned from Word Embeddings 叶娜老师说:"读懂论文的 ...

  3. Lessons Learned from Developing a Data Product

    Lessons Learned from Developing a Data Product For an assignment I was asked to develop a visual ‘da ...

  4. Lessons learned developing a practical large scale machine learning system

    原文:http://googleresearch.blogspot.jp/2010/04/lessons-learned-developing-practical.html Lessons learn ...

  5. Lessons Learned 1(敏捷项目中的变更影响分析)

    问题/现象: 业务信息流转的某些环节,会向相关人员发送通知邮件,邮件中附带有链接,供相关人员进入察看或处理业务.客户要求邮件中的链接,需要进行限制,只有特定人员才能进入处理或察看.总管想了想,应道没问 ...

  6. Paper Reading - Show and Tell: Lessons learned from the 2015 MSCOCO Image Captioning Challenge

    Link of the Paper: https://arxiv.org/abs/1609.06647 A Correlative Paper: Show and Tell: A Neural Ima ...

  7. 【机器学习Machine Learning】资料大全

    昨天总结了深度学习的资料,今天把机器学习的资料也总结一下(友情提示:有些网站需要"科学上网"^_^) 推荐几本好书: 1.Pattern Recognition and Machi ...

  8. Python框架、库以及软件资源汇总

    转自:http://developer.51cto.com/art/201507/483510.htm 很多来自世界各地的程序员不求回报的写代码为别人造轮子.贡献代码.开发框架.开放源代码使得分散在世 ...

  9. StackOverflow Update: 560M Pageviews A Month, 25 Servers, And It's All About Performance

    http://highscalability.com/blog/2014/7/21/stackoverflow-update-560m-pageviews-a-month-25-servers-and ...

随机推荐

  1. WooCommerce

    http://devework.com/woocommerce.html https://woocommerce.com/ https://woocommerce.com/product-catego ...

  2. Hibernate jpa 在实体类中对于时间的注解

    在时间类型DATE 属性上添加一个 @Temporal(TemporalType.DATE)(精确到年月日)@Temporal(TemporalType.TIME)(精确到时分秒)@Temporal( ...

  3. 1.3 jQuery基础

    使用jQuery需要引用jQuery文件(页面引用多个js文件时jQuery在最前面) <script src="jquery-1.11.2.min.js"></ ...

  4. iOS应用九宫格算法

      1.框框横向间隔为:( "界面的总宽度"-"界面每行的控件的宽度" * "每行要现实的列数(这里是3)") / ("列数 + ...

  5. 如何获取ResultSet的行数和列数

    当我们执行数据库查询返回一个ResultSet的时候,很多情况下我们需要知道这个ResultSet的大小,即它的行数和列数.我们知道它的列数可以通过resultSet.getMetaData().ge ...

  6. 代码中使用StoryBoard和DoubleAnimation的方法

    TranslateTransformを対象に.DoubleAnimation型のアニメーションを使用して.TranslateTransform.Xプロパティを ”-1 * Imageコントロールの幅” ...

  7. 解决vsftpd的refusing to run with writable root inside chroot错误

    参考 http://www.cnblogs.com/CSGrandeur/p/3754126.html 在Ubuntu下用 vsftpd 配置FTP服务器,配置 “ sudo chmod a-w /h ...

  8. 【转】iOS学习之translucent属性

    原文地址:http://www.jianshu.com/p/930643270455 总所周知,苹果从iOS7开始采用扁平化的界面风格,颠覆了果粉们"迷恋"的拟物化风格.对于开发者 ...

  9. python 编码问题

    参考原文:http://www.crifan.com/eclipse_pydev_console_messy_char_for_console_is_utf8/ 通用 rq = urllib.urlo ...

  10. 用VB实现SmartQQ机器人

    这里为了便于介绍程序设计的流程,更多以代码形式给出,具体可用火狐浏览器的firebug插件来抓包分析,或者用谷歌浏览器的开发者工具进行抓包.抓包地址是:http://w.qq.com 第一步,是二维码 ...