CM Enterprise replication note added

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Neil Clifford
2017-10-26 14:40:28 +01:00
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= Chronicle Map
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Chronicle Map is a super-fast, in-memory, key-value store, designed for low-latency, and/or multi-process applications such as trading and financial market applications.
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Chronicle Map is a super-fast, in-memory, non-blocking, key-value store, designed for low-latency, and/or multi-process
applications such as trading and financial market applications.
See <<docs/CM_Features.adoc#,Features doc>> for more information.
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The size of a Chronicle Map is not limited by memory (RAM), but rather by the available disk capacity.
image::docs\images\CM_Overview.jpg[]
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== Prerequisites
To run Chronicle Map, please ensure you have first installed:
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* Java (1.8.0_91 or later)
* Apache Maven (3.2.3 or later)
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=== Use cases
Chronicle Map is used in production around the
world for:
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Chronicle Map is:
• **fast**. Millions of operations per second, with
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low and stable microsecond latencies.
• **reliable**. Chronicle Software have a “chaos
monkey” test which verifies Chronicle Map
multi-master replication in the face of node
and network failures.
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low and stable microsecond latencies for reads and writes. Write queries scale well up
to the number of hardware execution threads in the server. Read queries never block each
other.
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monkey” test which verifies Chronicle Map
multi-master replication in the face of node
and network failures. The map can optionally be persisted to disk.
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• **in production** at banks and hedge funds,
globally.
• **built using lessons learnt** from real-world
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=== Replication Environment Example
The following diagram shows an example of Chronicle Map replication over three servers (or sites).
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Chronicle Map Replication is part of Chronicle Map (Enterprise Edition); a commercially supported
version of our successful open source Chronicle Map.
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image::docs\images\Configure_Three_Way_Replication.png[]