Ceph’s default recovery settings are far too aggressive. Tone it down with the following in the [osd] section or it will impact client IO osd_max_backfills = 1 osd_recovery_priority = 1 osd_client_op_priority = 63 osd_recovery_max_active =…

OpenVAS - OpenVAS - Open Vulnerability Assessment Scanner Atomicorpのリポジトリを登録する OpenVASのCentOS向けバイナリパッケージはAtomicorpというセキュリティ企業の提供するリポジトリ（atomicリポジトリ）から入手できる。 脆弱性スキャナ「OpenVA…

nagios + munin 監視対象サーバは60ぐらい Server Version: Apache/2.4.16 (Amazon) mod_fcgid/2.3.9 PHP/5.6.14 Server MPM: event aws インスタンス CPU steal http://d.hatena.ne.jp/toritori0318/20140312/1394634304 yum install libcgroup yum install…

Page Cache Minify Opcode Cache Zend Opcache Database Cache Object Cache Browser Cache HTTPヘッダを付与 .htaccess CDN Reverse Proxy varnish Monitoring Fragment Cache w3tc CDN How to Implement Self-Hosted CDN for Site SpeedGeneric Mirrorの使…

groonga-5.0.9/data/munin/ruby 参考 http://www.clear-code.com/blog/2010/5/7.html http://qiita.com/groonga/items/b889f1207ce664b11382