[ceph-users] Unexplainable high memory usage OSD with BlueStore

Wido den Hollander wido at 42on.com
Thu Nov 8 02:37:33 PST 2018



On 11/8/18 11:34 AM, Stefan Kooman wrote:
> Quoting Wido den Hollander (wido at 42on.com):
>> Hi,
>>
>> Recently I've seen a Ceph cluster experience a few outages due to memory
>> issues.
>>
>> The machines:
>>
>> - Intel Xeon E3 CPU
>> - 32GB Memory
>> - 8x 1.92TB SSD
>> - Ubuntu 16.04
>> - Ceph 12.2.8
> 
> What kernel version is running? What network card is being used?
> 

4.15.0-38-generic

The NIC in this case is 1GbE, a Intel I210.

It's this SuperMicro mainboard:
https://www.supermicro.com/products/motherboard/xeon/c220/x10sl7-f.cfm

So the kernel is already at 4.15 and it's not using any of those NICs.

Thanks!

Wido

> We hit a mem leak bug in Intel driver (i40e) (Intel x710) which has been
> fixed (mostly) in 4.13 and up [1].
> 
> Gr. Stefan
> 
> [1]: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1748408
> 


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