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. CPPFormatLibary提升效率的优化原理

    CPPFormatLibary,以下简称FL,介绍:关于CPPFormatLibary. 与stringstream,甚至C库的sprintf系列想比,FL在速度上都有优势,而且是在支持.net格式化 ...

  2. Spring的JDBC模板

    Spring对持久层技术支持 JDBC : org.springframework.jdbc.core.JdbcTemplate Hibernate3.0 : org.springframework. ...

  3. Go语言 Cookie的使用

    首先看看Cookie的结构体 type Cookie struct { Name string Value string Path string // optional Domain string / ...

  4. mysql的查询、子查询及连接查询

    >>>>>>>>>> 一.mysql查询的五种子句         where(条件查询).having(筛选).group by(分组). ...

  5. Android Studio中获取SHA1或MD5的方法

    原来在Eclipse中获取SHA1或者MD5,在IDE界面上就可以查找到. 切换到Android Studio后,如何查看呢?找了半天没找到.那就老办法命令行. 第一步.打开Android Studi ...

  6. Vue - 内部指令

    1.插值 A:<span>TEXT:{{text}}</span> {{text}}会被相应的数据类型text属性值替换,当text值改变时候,文本中的值也会相应的发生变化 B ...

  7. Linux Shell 流程控制语句

    * 本文主要介绍一些Linux Shell 常用的流程控制语句* 1. if 条件语句:if-then/if-elif-fi/if- else-fi if [条件判断逻辑1];then command ...

  8. Linux内核笔记——内存管理之块内存分配

    内核版本:linux-2.6.11 伙伴系统 伙伴系统是linux用于满足对不同大小块物理内存分配和释放请求的解决方案. 内存管理区 linux将物理内存分成三个内存管理区,分别为ZONE_DMA Z ...

  9. [Android]依赖注入框架google的dagger

    分享一下Android依赖注入框架--Google升级版Dagger2框架 Google的Dagger2是对上一版squareup的Dagger改版,话不多说直接上项目代码. Dagger2源码 Da ...

  10. centos7 解决ftp和apache运行目录权限冲突问题

    1.将ftp用户加入到apache用户组 usermod -a -G apache ftpadmin ftpadmin 为ftp用户 2.设置网站根目录/var/www的所有组为apache chow ...