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mysqlsniffer is a tcpdump clone specifically for dumping/sniffing/watching MySQL network protocol traffic over TCP/IP networks. mysqlsniffer is coded in C using the pcap library and works with MySQL version 4.0 and newer. mysqlsniffer is the only MySQL-specific network sniffer.

MySQL has fulltext index search ability for text field, but it is word based index: it cannot be used for no word delimiter language like Japanese or Chinese. It also can't search characters in the middle of a word (e.g. searching 'in' will not match word 'ping'). Starting from MySQL 5.1, MySQL supports a plugin that allows to change server components (fulltext search parser) without restarting and/or recompiling the server. This n-gram parser uses this plugin interface to implement a simple n-gram (bi-gram) fulltext index parser which can be used for languages without word delimiters.

mytop is a non-gui tool for monitoring the threads and overall performance of MySQL 3.22.x and 3.23.x servers. It runs on most Unix systems which have Perl, DBI, and Term::ReadKey installed. And with Term::ANSIColor installed you even get color.

This is a simple Nagios check script to monitor your MongoDB server(s).

nagiosplugin is a class library which helps writing Nagios (or Icinga) compatible plugins easily in Python. It cares for much of the boilerplate code and default logic commonly found in Nagios checks, including: * Nagios 3 Plugin API compliant parameters and output formatting * Controller to handle the general plugin control flow * Full Nagios range syntax support * Automatic threshold checking * Multiple independend measures and overall state logic * Long output and performance data * Timeout handling * Default options * Persistent "cookies" to retain state information between check runs

This plugin checks a redis server, expecting that a slave server is in sync with master, and the replication delay is not too high.

Namazu is a full-text search system intended for easy use. Not only it works as a CGI program for a small or medium scale Web search engine, but also works as a personal use search system for your pile of emails. (The Japanese word `Namazu' means `catfish' in English)

TDB is a Trivial Database. In concept, it is very much like GDBM, and BSD's DB except that it allows multiple simultaneous writers and uses locking internally to keep writers from trampling on each other. TDB is also extremely small.

A database driver for PostgreSQL written in pure Elixir.

Firebird is a relational database offering many ANSI SQL-99 features that runs on Linux, Windows, and a variety of Unix platforms. Firebird offers excellent concurrency, high performance, and powerful language support for stored procedures and triggers. It has been used in production systems, under a variety of names since 1981. Firebird is completely free of any registration, licensing or deployment fees. It may be deployed freely for use with any third-party software, whether commercial or not.