主从模式是最基础的模式，配置简单，主要用于数据备份和读写分离，提高系统的读取性能。但是，主从模式无法处理主节点故障的情况。

Culturally, North Rhine-Westphalia is not a uniform place; there are actually considerable discrepancies, specifically in classic customs, amongst the Rhineland area to the one hand plus the regions of Westphalia and Lippe on the opposite.

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Both the A44 along with the A52 have numerous lacking back links, in various stages of setting up. Some lacking sections are at present in construction or prepared for being produced within the in close proximity to potential.

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There happen to be a lot of improvements during the state's economy in latest periods. Among the many adjustments in the economic climate, employment within the creative industries is up although the mining sector is using less folks.[18] Industrial heritage web pages are actually workplaces for designers, artists as well as advertising industry.

More expressways serve as bypasses and native routes, Specifically all-around Dortmund and Bochum. Due to the density in the autobahns and expressways, Bundesstraßen are more info less important for intercity website traffic. The main Autobahns while in the Location opened in the mid-1930s.

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You here could potentially tick off Cologne’s sights more than the study course of a lengthy weekend or so, but to get the most out of one's continue to be you must get away from the tourist haunts through the river and explore at the least a lot of the quarters the place the locals Reside and Participate in.

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The second airport is the Intercontinental airport of Germany's fourth-most significant city Cologne, in addition to serves Bonn, former funds of West Germany. With around ten million passengers passing through it in 2023, it's the sixth-most significant passenger airport in Germany as well read more as the 3rd-premier regarding cargo operations.

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