我正在尝试使用JDBC连接到云中托管的MongoDB。但是，认证失败。Mydevelopmentenvironment:MacOSXEclipseDrivers:junit-3.8.1.jarmongodb-driver-3.2.2.jarmongodb-driver-core-3.2.2.jarbson-3.2.2.jarI'musingthedriverassuggestedbythebelowurl:http://mongodb.github.io/mongo-java-driver/?_ga=1.221045400.1622521490.1456732063Actually,t

即使我将位置指向/workspace/datastore，日志文件似乎仍然保存在/var/lib/mongodb/journal中我怎么能把日志文件保存到其他地方，因为根磁盘快满了。lsprealloc.0prealloc.1prealloc.2pwd/var/lib/mongodb/journalsystemLog:destination:filepath:"/var/log/mongodb/mongodb.log"quiet:falselogAppend:truenet:port:27017bindIp:0.0.0.0storage:dbPath:/workspace/datast

下面是我的收藏:db.himtest.find({name:"himanshu"}){"_id":ObjectId("56f1667611c54cf649076577"),"name":"himanshu","age":45,"points":10}{"_id":ObjectId("56f1667c11c54cf649076578"),"name":"himanshu","age":35,"points":10}{"_id":ObjectId("56f1669511c54cf64907657b"),"name":"himanshu","age":35,"points":1100}{"_

在Spoon中，我使用了mongoDB输入步骤。对于给定的表格文件..{"Number":["4700100004"],"Random":["unknown"],"List_Of_Vals1":["3","2","1",],"List_Of_Vals2":["1","2","3",]}我能够使用来自pdi的Mongo查询展开其中一个数组[{"$unwind":"$List_Of_Vals1"}]产生::NumberRandomList_Of_Vals1List_Of_Vals2"4700100004""unknown""3"["1","2","3"]"4700100004""unkno

当我在mongodb中插入日期时间时，它是UTC格式ISODate("2016-03-29T07:53:02.847Z")当我获取这个结果时，它在IST中TueMar29201613:23:02GMT+0530(IST)我想把它转换成EST并显示(只有日期和时间)TueMar29201602:56:22GMT-0400(EDT)TueMar29201602:56:22(finaloutput)我已经尝试过node-time、momentjs等。做了很多研究但没有结果。任何帮助/建议都非常感谢. 最佳答案 Moment.js在node

我有两个集合:测试和报告。它们是相关的，Reports具有带Test.id的现场测试。每个Test文档都有testers_count字段。我还写了查询应该只返回Tests，testers_count大于或等于相关Reports的count文档。db.test.aggregate([{$lookup:{from:'reports',localField:'_id',foreignField:'test',as:'reportsList'}},{$match:{"settings.testers_count":{$gte:{$size:"$reportsList"}}}}])问题是代码不工

我在努力@org.springframework.data.mongodb.core.mapping.Document(collection="goal")@org.springframework.data.elasticsearch.annotations.Document(indexName="goal")publicclassGoalimplementsSerializable{....}但这给了我:Errorcreatingbeanwithname'goalRepository':Invocationofinitmethodfailed;nestedexceptionisorg

我有一个包含多个列的数据库。我试图区分一列，因此我可以添加第二列的数字。我正在创建一个新的集合(表)。例如:statesracerace_1geo_typeAlabama13stateAlabama41stateAlabama41stateAlaska51stateAlaska21state所以输出应该是。statesracerace_1geo_typeAlabama95stateAlaska72state我正在使用Javascript来处理这个问题。这是我目前所拥有的:db.race_collection.distinct('states').forEach(function(sta

我需要帮助从文档中获取具有字段(级别)最大值的数组元素。然后统计数组元素字段“bssid”分组的总出现次数。考虑以下数据/*1*/{"_id":"18:59:36:0c:94:a3","timestamp":"1460012567","apdata":[{"bssid":"f4:b7:e2:56:e4:20","ssid":"TestNetwork2","level":-55},{"bssid":"b8:a3:86:67:03:56","ssid":"TestNetwork1","level":-76}]}/*2*/{"_id":"d0:b3:3f:b9:42:38","timesta

我创建了一个MongoDB自动分片集群，它有3个分片服务器(没有复制)、1个配置服务器和1个Mongos实例。这是sh.status()的输出。mongos>sh.status()---ShardingStatus---shardingversion:{"_id":1,"minCompatibleVersion":5,"currentVersion":6,"clusterId":ObjectId("56ffa36ab327ae2bee8fe804")}shards:{"_id":"shard0000","host":"172.18.109.46:27018"}{"_id":"shard