標籤:1.查看dblinkselect owner,object_name from dba_objects where object_type=‘DATABASE LINK‘; 或者select * from dba_db_links; 2.建立dblink前提: 建立dblink的使用者有對應的資料庫許可權 create public database link 或者create database
標籤:面對高並發大Cellular Data Package器,根據業務需要往往需要對資料庫,作業系統I/O,頻寬等等做壓力測試.從而來判斷什麼時候要做負載平衡,增加伺服器等來為業務支撐做準備。linux系統可以通過iotop,dstat,top等分析系統的壓力。對mysql壓測有很多優秀的工具sysbench,tpcc等都是很不錯的工具。今天就用sysbench壓測一下mysql5.6.23社區版本,伺服器比較渣,4核cpu,16G,磁碟轉速9600
標籤:ICDM Winner‘s Interview: 3rd place, Roberto DiazThis summer, the ICDM 2015 conference sponsored a competitionfocused on making individual user connections across multiple digital devices. Top teams were invited
標籤:Express安裝後出現command not found問題安裝Node.js的web架構Express:npm install -g express,鍵入命令:express –help,出現提示:sh: express: command not found。明明安裝了express,但卻告知不能命令運行express。顯示command not found解決方案在安裝express時增加generator參數:npm install -g
標籤:gns3 配置static p2p gre over ipsec1、實驗拓撲650) this.width=650;" src="http://s3.51cto.com/wyfs02/M01/73/4E/wKioL1X6KjyxdBVTAAF6eCc7jvE564.jpg" title="static p2p gre over ipsec.png" alt="wKioL1X6KjyxdBVTAAF6eCc7jvE564.jpg" />2、基礎網路設定R1配置:interface
標籤:The ‘CctSharedPackage‘ package did not load correctly.The problem may have been caused by a configuration change or by the installation of another extension. You can get more information by examining the file