Hi Sam,
Thank for your reply. I use BTRFS file system on OSDs.
Here is result of "*free -hw*":
total used free shared
buffers cache available
Mem: 125G 58G 31G 1.2M 3.7M
36G 60G
and "*ceph df*":
GLOBAL:
SIZE AVAIL RAW USED %RAW USED
523T 522T 1539G 0.29
POOLS:
NAME ID USED %USED MAX AVAIL
OBJECTS
............
default.rgw.buckets.data 92 597G 0.15 391T
84392
............
I was reviced this a few minutes ago.
2017-02-15 10:50 GMT+07:00 Sam Huracan <[email protected]>:
> Hi Khang,
>
> What file system do you use in OSD node?
> XFS always use Memory for caching data before writing to disk.
>
> So, don't worry, it always holds memory in your system as much as possible.
>
>
>
> 2017-02-15 10:35 GMT+07:00 Khang Nguyễn Nhật <
> [email protected]>:
>
>> Hi all,
>> My ceph OSDs is running on Fedora-server24 with config are:
>> 128GB RAM DDR3, CPU Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz, 72 OSDs
>> (8TB per OSD). My cluster was use ceph object gateway with S3 API. Now, it
>> had contained 500GB data but it was used > 50GB RAM. I'm worry my OSD will
>> dead if i continue put file to it. I had read "OSDs do not require as
>> much RAM for regular operations (e.g., 500MB of RAM per daemon instance);
>> however, during recovery they need significantly more RAM (e.g., ~1GB per
>> 1TB of storage per daemon)." in Ceph Hardware Recommendations. Someone
>> can give me advice on this issue? Thank
>>
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>>
>>
>
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