使用具有复合唯一键的Solr进行深度分页时缺少nextCursorMark
我正在使用DataStax Cassandra和Solr使用具有复合唯一键的Solr进行深度分页时缺少nextCursorMark,solr,cassandra,paging,datastax-enterprise,unique-key,Solr,Cassandra,Paging,Datastax Enterprise,Unique Key,我正在使用DataStax Cassandra和Solr Cassandra 2.0.10.71 | DSE 4.6.0 | CQL spec 3.1.1 | Thrift protocol 19.39.0 我有一个Cassandra专栏系列: CREATE TABLE kSpace.colfam1 ( id text, date timestamp, desc text, origin set<text>, PR
Cassandra 2.0.10.71 | DSE 4.6.0 | CQL spec 3.1.1 | Thrift protocol 19.39.0
我有一个Cassandra专栏系列:
CREATE TABLE kSpace.colfam1 (
id text,
date timestamp,
desc text,
origin set<text>,
PRIMARY KEY ((id), date)
) WITH CLUSTERING ORDER BY (date DESC);
响应返回,但它没有任何nextCursorMark:
{
"responseHeader": {
"status": 0,
"QTime": 1,
"params": {
"sort": "id asc, date desc",
"indent": "true",
"q": "*:*",
"_": "1429004324135",
"cursorMark": "*",
"wt": "json",
"rows": "2"
}
},
"response": {
"numFound": 284901,
"start": 0,
"docs": [
{
"_uniqueKey": "[\"000047bc-921d-4487-b5f3-c70520e0a7bf\",\"1428601411276\"]",
"id": "000047bc-921d-4487-b5f3-c70520e0a7bf",
"date": "2015-04-09T17:43:31.276Z",
"desc": "description1 description2"
},
{
"_uniqueKey": "[\"0000531e-efee-42b4-9c52-136e9a106827\",\"1428601409625\"]",
"id": "0000531e-efee-42b4-9c52-136e9a106827",
"date": "2015-04-09T17:43:29.625Z",
"desc": "description3 description4"
}
]
}
}
从Solr 4.7开始,可以使用深度分页 DSE 4.6.x有Solr 4.6。您必须等待将来的版本(可能是4.7版)才能访问此功能。Rahul 正如phact所说,DataStax企业版主要版本4.6.x将不包括Solr 4.7(支持深度分页的Apache Solr的最早版本,在引入“nextCursorMark”时) 您可以通过获取DSE 4.7 Early Access Program release的副本(我不建议将其用于生产,但它有Solr 4.7) 为了在早期版本(Apache Solr<4.7)中允许在Solr中进行分页,您必须绕过分页。请求对“行”进行限制并设置“开始”索引的分组结果可能是一种可行的选择 查看 使用:和 例如:
?q=yourquery&rows=10&start=0
然后
?q=yourquery&rows=10&start=10
这并不漂亮,但在DSE 4.7发布供公众使用之前,这是一个可行的替代方案。我不确定您对
uniqueKey
的定义是否有效,请阅读此处,解释为什么游标标记仍然不存在,因为您没有有效的uniqueKey
http://localhost:8983/solr/kSpace.colfam1/select?
q=*%3A*
&sort=id+asc%2C+date+desc
&rows=2
&wt=json
&indent=true
&cursorMark=*
{
"responseHeader": {
"status": 0,
"QTime": 1,
"params": {
"sort": "id asc, date desc",
"indent": "true",
"q": "*:*",
"_": "1429004324135",
"cursorMark": "*",
"wt": "json",
"rows": "2"
}
},
"response": {
"numFound": 284901,
"start": 0,
"docs": [
{
"_uniqueKey": "[\"000047bc-921d-4487-b5f3-c70520e0a7bf\",\"1428601411276\"]",
"id": "000047bc-921d-4487-b5f3-c70520e0a7bf",
"date": "2015-04-09T17:43:31.276Z",
"desc": "description1 description2"
},
{
"_uniqueKey": "[\"0000531e-efee-42b4-9c52-136e9a106827\",\"1428601409625\"]",
"id": "0000531e-efee-42b4-9c52-136e9a106827",
"date": "2015-04-09T17:43:29.625Z",
"desc": "description3 description4"
}
]
}
}