20 lines
998 B
Text
20 lines
998 B
Text
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SkyTools is a package of tools in use in Skype for replication and failover.
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It also includes a generic queuing mechanism called PgQ and a utility
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library for Python scripts, as well as a script for setting up and managing
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WAL based standby servers.
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PgQ is a queuing system written in PL/pgSQL, Python and C code. It is based
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on snapshot-based event handling ideas from Slony-I, and is written for
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general usage. PgQ provides an efficient, transactional, queueing system
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with multi-node support (including work sharing and splitting, failover and
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switchover, for queues and for consumers). PgQ is split into 3 layers:
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Producers, Ticker and Consumers.
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Londiste is a replication tool written in Python, using PgQ as event
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transport.
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Walmgr is a script that will setup WAL archiving, does the initial backup,
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and runtime WAL archive and restore. It can also be used for
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up-to-last-second partial file copying, so that less than the whole file is
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lost in case of loss of the master database server.
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