Question

在mongodb索引创建过程中，机器变得非常慢。＆＃34;顶＆＃34;命令显示mongodb使用98％的RAM。我已经关闭了ssh会话，之后我就不能再通过ssh登录了。

系统信息：

Ubuntu 14.04.4 
8 GB RAM
2.7 TB free on HDD

MongoDB信息：

> db.stats();
{
        "db" : "poi",
        "collections" : 11,
        "objects" : 68429619,
        "avgObjSize" : 480.50437612402897,
        "dataSize" : 32880731386,
        "storageSize" : 14584963072,
        "numExtents" : 0,
        "indexes" : 55,
        "indexSize" : 5711147008,
        "ok" : 1
}

这是什么意思？这可能是原因吗？

MongoDB shell version: 3.2.5
connecting to: test
Server has startup warnings:
2016-06-01T07:51:38.371+0000 I CONTROL  [initandlisten]
2016-06-01T07:51:38.371+0000 I CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
2016-06-01T07:51:38.371+0000 I CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.
2016-06-01T07:51:38.371+0000 I CONTROL  [initandlisten]
2016-06-01T07:51:38.372+0000 I CONTROL  [initandlisten]
2016-06-01T07:51:38.372+0000 I CONTROL  [initandlisten] ** WARNING: You are running on a NUMA machine.
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten] **          We suggest launching mongod like this to avoid performance problems:
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten] **              numactl --interleave=all mongod [other options]
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten]
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten]
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2016-06-01T07:51:38.373+0000 I CONTROL  [initandlisten]

如何避免使用mongodb的所有RAM？

0 个答案: