Mongoexport 在达到 101 条记录时停止

我正在尝试将 MongoDB 集合从远程服务器转储到本地JSON 文件。

首先，我先进行一些 ssh 端口转发：

ssh -NL 12345:localhost:27017 $REMOTE_USERNAME@$REMOTE_HOST &

然后，出口本身：

mongoexport -h $MONGODB_URL -d $MONGODB_DBNAME -c $MONGODB_COLLECTION -o $BACKUP_FILE --pretty

我通常会得到的是这样的：

2019-02-07T14:58:15.322-0400    writing bubeIO.requests to
2019-02-07T14:58:18.754-0400    [........................]  bubeIO.requests  0/2773  (0.0%)
2019-02-07T14:58:21.754-0400    [........................]  bubeIO.requests  10/2773  (0.3%)
2019-02-07T14:58:24.754-0400    [........................]  bubeIO.requests  20/2773  (0.6%)
...
...
2019-02-07T14:59:00.754-0400    [........................]  bubeIO.requests  2773/2773  (100.0%)

但是，我得到的是：

2019-02-07T14:58:15.322-0400    writing bubeIO.requests to
2019-02-07T14:58:18.754-0400    [........................]  bubeIO.requests  0/2773  (0.0%)
2019-02-07T14:58:21.754-0400    [........................]  bubeIO.requests  0/2773  (0.0%)
2019-02-07T14:58:24.754-0400    [........................]  bubeIO.requests  0/2773  (0.0%)
2019-02-07T14:58:27.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:30.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:33.754-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:36.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:39.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:42.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:45.754-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:48.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:51.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:54.754-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:58:57.753-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:59:00.594-0400    [........................]  bubeIO.requests  101/2773  (3.6%)
2019-02-07T14:59:00.594-0400    Failed: error writing data for collection `bubeIO.requests` to disk: error reading collection: read tcp [::1]:61276->[::1]:12345: use of closed network connection

正如您所看到的，它从 0 到 101 非常快，然后它不会从那里到任何地方，直到超时。

之前它在远程转储方面运行良好，但突然之间开始出现这种情况。本地转储工作正常，所以这可能是网络问题？

谁能告诉我如何解决这个问题？

PS：mongod和mongoexport都是4.0.2版本

编辑

在我释放了总共 13 GB 的硬盘空间后，它又开始工作了。也许磁盘无法容纳整个未压缩的集合，所以我对 mongoexport 的内部工作和磁盘使用情况越来越深入。感谢@priyanka-kariya 和@Stennie。