forked from docs/doc-exports
Chen, Junjie
ea05d1a734
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com> Co-authored-by: Chen, Junjie <chenjunjie@huawei.com> Co-committed-by: Chen, Junjie <chenjunjie@huawei.com>
12 lines
1.1 KiB
HTML
12 lines
1.1 KiB
HTML
<a name="dcs-faq-0730061"></a><a name="dcs-faq-0730061"></a>
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<h1 class="topictitle1">How Does Redis Master/Standby Replication Work?</h1>
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<div id="body1596093777162"><p id="dcs-faq-0730061__en-us_topic_0209664638_p13913148103615">Redis master/standby instances are also called master/slave instances. Generally, updates to the master cache node are automatically and <span class="keyword" id="dcs-faq-0730061__keyword345415235102">asynchronously replicated</span> to the standby cache node. This means that data in the standby cache node may not always be consistent with data in the master cache node. The inconsistency is typically seen when the I/O write speed of the master node is faster than the synchronization speed of the standby node or a network latency occurs between the master and standby nodes. If a failover happens when some data is not yet replicated to the standby node, such data may be lost after the failover.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dcs-faq-191204001.html">Master/Standby Switchover</a></div>
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