Solr将整个索引加载到内存中 [英] Solr loads entire index into memory
问题描述
我使用solr获取类似于
名称的数据：年龄：性别：balance：nextbalance：interest
I am using solr for data similar to name:age:sex:balance:nextbalance:interest
我有30 M记录总计达到4G磁盘。我按年龄检索：23只有50条记录。我在schema xml中有indexed =true。 Solr似乎将磁盘上的整个索引加载到内存（4G）中。它不应该只将40多条记录检索到内存中吗？
I have 30 M records totaling to 4G on disk. I am retrieving by age:23 which is only 50 records. I have indexed="true" in the schema xml. Solr seems to load the entire index on disk into memory (4G). Isnt it supposed to retrieve only the 40 odd records into memory ?
推荐答案
我认为这取决于你如何配置缓存（它在内存中的作用和内容）。无论查询如何，将整个索引加载到内存中都可以在检索结果所需的时间内提高性能。
I think it depends on how you configure the cache (what it does and doesn't keep in memory). Loading the entire index into memory can give you huge performance boosts in terms of the time needed to retrieve results, regardless of the query.
有关配置缓存的详细信息，以及表现因素：
Details on configuring cache, and details on performance factors:
- http://wiki.apache.org/solr/SolrCaching
- http://wiki.apache.org/solr/SolrPerformanceFactors
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