一台机器上的多个Solr分片会提高性能吗? [英] Do multiple Solr shards on a single machine improve performance?

问题描述

在一台机器上运行多个Solr分片是否可以提高性能?我希望Lucene是多线程的，但是在我的服务器上使用16个物理核心的情况似乎并不多于一个核心.我意识到这取决于工作量，但是任何统计信息或基准测试都将非常有用！

Does running multiple Solr shards on a single machine improve performance? I would expect Lucene to be multi-threaded, but it doesn't seem to be using more than a single core on my server with 16 physical cores. I realize this is workload dependent, but any statistics or benchmarks would be very useful!

推荐答案

我跑了一些

I ran some benchmarks of our search stack, and found that adding more Solr shards (on a single machine, with 16 physical cores) did improve performance up to about 8 shards (where I got a 6.5x speed up). This is on an index with ~1.5million documents, running complex range queries.

因此，当对单个索引运行查询时，Solr似乎没有利用多个物理核心.

So, it seems that Solr doesn't take advantage of multiple physical cores, when running queries against a single index.

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