我是 mongo 的新手，刚刚在我的笔记本电脑上本地设置了一个副本集。
我正在尝试从这里导入餐厅的演示数据库： https://raw.githubusercontent.com/mongodb/docs-assets/primer-dataset/dataset.json
并执行 mongoimport 命令如下：
mongoimport -v --db test --collection restaurants --drop --file dataset.json
导入结束，刚好在 45% 处停止
2015-12-29T12:42:56.847-0500 filesize: 11880944 bytes
2015-12-29T12:42:56.847-0500 using fields:
2015-12-29T12:42:56.859-0500 connected to: localhost
2015-12-29T12:42:56.859-0500 ns: test.restaurants
2015-12-29T12:42:56.860-0500 connected to node type: replset
2015-12-29T12:42:56.860-0500 using write concern: w='majority', j=false, fsync=false, wtimeout=0
2015-12-29T12:42:56.861-0500 dropping: test.restaurants
2015-12-29T12:42:56.864-0500 using write concern: w='majority', j=false, fsync=false, wtimeout=0
2015-12-29T12:42:59.859-0500 [#########...............] test.restaurants 4.5 MB/11.3 MB (39.9%)
2015-12-29T12:43:02.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:05.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:08.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:11.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:14.849-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:17.849-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:20.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:23.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:26.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:29.849-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:32.849-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:35.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:38.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:41.849-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:44.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:47.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:50.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:53.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:56.850-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:43:59.849-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:44:02.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:44:05.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:44:08.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:44:11.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
2015-12-29T12:44:14.848-0500 [##########..............] test.restaurants 5.2 MB/11.3 MB (45.5%)
在从属服务器上创建了一个数据库测试，但如果我尝试进行查找：db.restaurants.find();
我回复说：
Error: error: { "$err" : "not master and slaveOk=false", "code" : 13435 }
这是我的来自主服务器的副本配置：
repl1:PRIMARY> rs.config()
{
"_id" : "repl1",
"version" : 7,
"members" : [
{
"_id" : 0,
"host" : "mongo1:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
},
{
"_id" : 1,
"host" : "mongo2:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
},
{
"_id" : 2,
"host" : "mongo3:27017",
"arbiterOnly" : false,
"buildIndexes" : true,
"hidden" : false,
"priority" : 1,
"tags" : {
},
"slaveDelay" : 0,
"votes" : 1
}
],
"settings" : {
"chainingAllowed" : true,
"heartbeatTimeoutSecs" : 10,
"getLastErrorModes" : {
},
"getLastErrorDefaults" : {
"w" : 1,
"wtimeout" : 0
}
}
}
看起来从属服务器没有意识到它们是副本集的一部分。
在哪里可以找到更多有关正在发生的事情的信息？
答案1
导入结束，刚好在 45% 处停止
它可能没问题，只是在构建索引。或者您可能耗尽了某些系统资源，或者可能只是速度很慢。跟踪该mongod过程的日志以获取更多信息。检查磁盘的可用空间，并检查top或使用您拥有的任何系统监控工具来查看在导入似乎停止在 45% 时正在使用哪些资源。
在从属服务器上创建了一个数据库测试，但如果我尝试进行查找：db.restaurants.find();
我回复说：
Error: error: { "$err" : "not master and slaveOk=false", "code" : 13435 }
如果不先告知驱动程序或 mongo shell 可以这样做，则无法查询辅助节点上的数据。请先运行rs.slaveOk()，然后才能运行find()查询。
答案2
防火墙阻止了从服务器与主服务器进行通信。主服务器可以与从服务器通信，但从服务器无法进行响应。
如果您遇到类似问题，请检查您的防火墙（如果您使用的是 Centos7）
答案3
要导入，您可以尝试以下代码：
mongoimport --db <database-name> --collection <collection-name> --file ~/path/file-name.json