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{"name":"Norikra","tagline":"Project Norikra: Top page","body":"# Norikra - Schema-less Stream Processing with SQL\r\nNorikra is a open source server software provides \"Stream Processing\" with SQL, written in JRuby, runs on JVM, licensed under GPLv2.\r\n\r\n### Schema-less event streams (called as 'target')\r\nInput/Output event streams as JSON objects, which can contain any fields with a target name.\r\n\r\n### SQL processing\r\nNorikra's query is SQL with window specifier support (It's actually Esper's EPL). JOINs and SubQueries are also fully supported.\r\n\r\n### Complex events\r\nNested hashes and arrays are available for event values, and directly available from SQL queries.\r\n\r\n### Dynamic query registration/removing\r\nNo more restarts required for new processing logs, queries, targets and any others.\r\n\r\n### Ultra fast bootstrap, small start\r\nOnly 3 minutes required to install, configure and start norikra server.\r\n\r\n### UDF plugins\r\nUDFs can be added as plugins, written by yourself, or installed from RubyGems.org.\r\n\r\n### Open source software\r\nNorikra is licensed under GPLv2, and developed in github. Its core engine is based on Esper, which is GPLv2 library for SQL-based event processing.\r\n * https://github.com/norikra/norikra\r\n\r\nNorikra is always open for users feedbacks and pull-requests.\r\n\r\n## How to install and start\r\n1. Install JRuby on your machine, and export PATH to jruby.\r\n  * check `ruby -v` says like 'jruby 1.7.4' or same\r\n2. Install norikra gem: `gem install norikra`\r\n3. Start norikra: `norikra start`\r\n\r\nWebUI is available on `http://hostname:26578/`.\r\n\r\n* To daemonize\r\n * just do `norikra start --daemonize --logdir=/var/log/norikra`\r\n * with permission for pidfile /var/run/norikra/norikra.pid, and logdir\r\n* And to stop\r\n * do `norikra stop`\r\n\r\nOther options like supervisord, Upstart, systemd and others are available.\r\n\r\n## Examples\r\nStay tuned!\r\n\r\n## Software design\r\nComing soon.\r\n\r\n## How to add UDF\r\nComing soon.\r\n\r\n## FAQs\r\n# Performance?\r\nLater.\r\n\r\n### Availability?\r\nLater.\r\n\r\n### vs Storm? vs Hive? vs RDBMS?\r\nLater.\r\n\r\n### How to pronounce 'Norikra'?\r\n\"No-rick-la\"\r\n\r\n### What 'Norikra' means?\r\nJapanese famous mountains, which has great winding roads like dynamic data streams\r\n\r\n## LICENSE\r\nNorikra is licensed under GPLv2.\r\nhttp://opensource.org/licenses/GPL-2.0","google":"UA-43099973-3","note":"Don't delete this file! It's used internally to help with page regeneration."}