这些实体称为主数据。 在当今的许多公司中，质量很差的主数据分散在不同的应用领域中，这给公司带来很多麻烦。
These entities are known as master data and many companies suffer today from low-quality master data scattered across the enterprise in various application silos.
主数据通常分散在企业中的多个数据源系统中，这会导致主数据不一致、不完整且质量差。
Master data typically is scattered throughout the enterprise in multiple source systems which makes it inconsistent, incomplete and of poor quality.
Solr还提供了主-从索引复制机制，以便在大规模的应用中分散查询负载。
Solr also provides a master-slave index replication mechanism to allow query load to be distributed in a large-scale environment.
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