https://www.brentozar.com/archive/2013/05/monitoring-ssd-performance/ May 16, 2013Jeremiah PeschkaSQL Server, Storage2 Comments Everyone wants to make sure they’re getting the best performance out of their solid state storage. If you’re like a lot of…

本系列文章着重学习和研究OpenStack Swift,包括环境搭建.原理.架构.监控和性能等. (1)OpenStack + 三节点Swift 集群+ HAProxy + UCARP 安装和配置 (2)原理.架构和性能 (3)监控 对 Swift 集群的监控是必要的,特别是集群规模很大的时候. 1. 监控目标 主要的监控目标包括: 硬件故障 操作系统故障 Swift 集群健康状态 Swift 集群状态 2. Swift 提供的工具 2.1 Swift 自带的各种 Audit 工具 2.1.1…

By Ilya Grigorik on June 23, 2009 Measuring and optimizing IO performance is somewhat of a black art: the tools are there, the resources and discussions are plenty, but it is also incredibly easy to get lost in the forest. I speak from recent experie…

http://blog.packagecloud.io/eng/2016/06/22/monitoring-tuning-linux-networking-stack-receiving-data/ Jun 22, 2016 • packagecloud Tags: packagecloud linux kernel networking optimization tuning monitoring TL;DR This blog post explains how computers runn…

Java SE 6 provides an in-depth focus on performance, offering expanded tools for managing and monitoring applications and for diagnosing common problems. The improvements include: Monitoring and management API enhancements Official support for an imp…

Monitoring Windows Azure SQL Database Using Dynamic Management Views 5 out of 7 rated this helpful - Rate this topic Microsoft Windows Azure SQL Database enables a subset of dynamic management views to diagnose the performance problems, which might b…

With MySQL, common configuration mistakes can cause serious performance problems. In fact, if you mis-configure just one of the many config parameters, it can cripple performance! (see examples) Of course, the performance of MySQL is often tied great…

Install Performance Co-Pilot 提前安装依赖 [root@iZrj97j6t7ih9hgz1me35hZ ~]# cat install.sh yum install -y docker yum install -y git yum install -y yum-utils-1.1.31-40.el7.noarch yum install lex yum install flex yum install -y bison yum install -y perl-ExtU…

BACKGROUND  1. Field  The embodiments of the disclosure generally relate to computer clusters, and more particularly to systems, methods, and devices for the efficient management of resources of computer clusters.  2. Description of the Related Art …

论文链接: https://arxiv.org/pdf/1512.02325.pdf 代码下载: https://github.com/weiliu89/caffe/tree/ssd Abstract We present a method for detecting objects in images using a single deep neural network. Our approach, named SSD, discretizes the output space of boun…

The CentOS Project has announced general availability of CentOS-7, the first release of the free Linux distro based on the source code for Red Hat Enterprise Linux (RHEL) 7. It's also the first major CentOS release to ship since the CentOS Project en…

/* Domain 1 Design Resilient Architectures 1. Which of the following statements regarding S3 storage classes is true? A. The availability of S3 and S3-IA is the same. B. The durability of S3 and S3-IA is the same. C. The latency of S3 and Glacier is…

Orleans Remote Deployment Table of Contents Overview: 1 Prerequisites. 2 Deployment Steps. 2 Orleans Deployment Manifest 3 Orleans Silo Configuration. 4 Gateway Load Shedding. 5 Orleans Powershell Scripts. 6 Deploying Orleans using Powershell Script…

目录 . the most common problem areas in cloud application development ) Availability ) Data Management ) Design and Implementation ) Management and Monitoring ) Messaging ) Performance and Scalability ) Resiliency ) Security 1. the most common problem…

本文将介绍CRM的三个内容追踪.监控及性能优化.追踪是CRM里一个很有用的功能,它能为我们的CRM调试或解决错误.警告提供有价值的信息:我们可以用window的性能监控工具来了解CRM的性能状况:最后就是对CRM及其DB进行性能调整以让CRM达到最佳状态.   一.追踪 有二种追踪方式,一种是部署级,这种方式追踪所有的CRM 服务器上的角色.服务,默认情况,log文件在C:\crmdrop\logs:另一种是服务器级追踪,这种方式只追踪当前机器上运行的服务器角色.服务.默认情况,log文件在C:…

In this post, I will distill my own ideas and my own views into a structure for a storage system course. Here, I assume here a 15-weeks course with a single 1 1/2 hour lecture per week (as we have in Germany): Introduction, Overview, Disk Drive Archi…

PXC简介 Percona XtraDB Cluster(简称PXC集群)提供了MySQL高可用的一种实现方法. 1.集群是有节点组成的,推荐配置至少3个节点,但是也可以运行在2个节点上. 2.每个节点都是普通的mysql/percona服务器,可以将现有的数据库服务器组成集群,反之,也可以将集群拆分成单独的服务器. 3.每个节点都包含完整的数据副本.    PXC集群主要由两部分组成:Percona Server with XtraDB和Write Set Replication patche…

How to Configure the Gradient Boosting Algorithm by Jason Brownlee on September 12, 2016 in XGBoost 0 0 0 0   Gradient boosting is one of the most powerful techniques for applied machine learning and as such is quickly becoming one of the most popula…

bootchart--检测linux启动性能的软件 摘自http://www-128.ibm.com/developerworks/library/l-boot-faster/index.html?ca=dgr-lnxw01FC-FastLinuxBoot, Parallelize applications for faster Linux booting ,有兴趣的可以去读原文.也可以直接从http://www.bootchart.org/下载软件. bootchartd作为一个deamon在…

Objectives: •Describe your role as a database administrator (DBA) and explain typical tasks and tools The approach for designing, implementing, and maintaining an Oracle database involves the following tasks:1. Evaluating the database server hardware…

Overview A Quick Example Basic Concepts Linking Initializing StreamingContext Discretized Streams (DStreams) Input DStreams and Receivers Transformations on DStreams Output Operations on DStreams DataFrame and SQL Operations MLlib Operations Caching…

本文章主要参考walkthrough,aggregation和auth.涉及custom metric API的注册认证以及API server aggregation的相关知识.walkthrough中主要实现了Prometheus adapter的功能,Prometheus adapter主要从Prometheus以一定间隔收集可用的metrics,然后以特定的格式暴露该metrics. 强烈建议阅读官方文档:setup an extension API server HorizontalP…

https://github.com/onurakpolat/awesome-bigdata A curated list of awesome big data frameworks, resources and other awesomeness. Inspired by awesome-php, awesome-python, awesome-ruby, hadoopecosystemtable & big-data. Your contributions are always welco…

In this blog post I will show you kafka integration with ganglia, this is very interesting & important topic for those who want to do bench-marking, measure performance by monitoring specific Kafka metrics via ganglia. Before going ahead let me brief…

数据复制任务路线图 设置数据复制必须执行许多任务. 下表列出了构建分发路径的阶段. Task Description 运行Oracle GoldenGate Configuration Assistant(oggca)以创建和配置安全和非安全部署 请参阅设置安全和非安全部署 登录服务管理器(Service Manager) 登录到Service Manager时,您可以看到其他服务器(Administration Server,Distribution Server,Performance Me…

nginx内置了一个status状态的功能,通过配置可以看到nginx的运行情况,status显示的内容包括当前连接数,处于活动状态的连接数,已经处理的请求数等等,可以利用这个功能编写zabbix监控nginx的脚本. 一.agent端配置 1.编辑nginx配置文件,开启status功能 [root@stau66 ~]# vim /usr/local/nginx/conf/nginx.conf  location / {             root   html;            …

iostat, from the excellent sysstat suite of utilities, is the go-to tool for evaluating IO performance on Linux. It's obvious why that's the case: sysstat is very useful, solid, and widely installed. System administrators can go a lot worse than taki…

之前梳理了Mysql+Keepalived双主热备高可用操作记录,对于mysql高可用方案,经常用到的的主要有下面三种: 一.基于主从复制的高可用方案:双节点主从 + keepalived 一般来说,中小型规模的时候,采用这种架构是最省事的. 两个节点可以采用简单的一主一从模式,或者双主模式,并且放置于同一个VLAN中,在master节点发生故障后,利用keepalived/heartbeat的高可用机制实现快速 切换到slave节点. 在这个方案里,有几个需要注意的地方: 采用keepaliv…

一.配置指南 1,客户端配置 2,服务端配置 3,典型配置 4,配置.NET垃圾收集 5,SQL系统存储 二.监控 1,运行时监视 2,silo错误代码监测 3,客户端错误代码监测 三.解决部署问题 四.异构silos 五.开始使用Azure Web Apps 六.Docker部署 七.服务结构托管 一.配置指南 本配置指南介绍了关键配置参数以及如何在大多数典型使用场景中使用这些参数. Orleans Configuration xsd file is located here. Orleans…

Linux 安装时 Customize Now(自定义选包)选包如下 base system  ->  base , compatibility libraries,debugging Tools,Dial-up Networking Support ,Hardware monitoring utilities,performance Tools Development -> development tools /etc/init.d/network restart  重启网卡 uname -…