Ceph

07/13/2022

12:07 PM RADOS Feature #56543 (New): About the performance improvement of ceph's erasure code storage pool

Hello everyone：
Although I know that the erause code storage pool is not suitable for use in scenarios with many ran... Sheng Xie

01/14/2022

08:43 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

The test results are exciting! Can we change the default value of ‘entry_timeout’ and 'attr_timeout' from 0 to 1？
... Sheng Xie

01:52 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

I did a simple test and have merged your pr: Test "ls -l"the time-consuming of a directory containing 3000*4K files a... Sheng Xie

01/06/2022

01:34 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

I just carried out the same test. Your modification solves this problem very well.SO i will go on to try to add the "... Sheng Xie

12/31/2021

09:11 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

I will modify it gracefully as soon as possible after fully understanding this logic but it may take some time. Sheng Xie

12/30/2021

03:45 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

Xiubo Li wrote:... Sheng Xie

02:25 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

Thank you for your prompt.
I spent some time learning the logic of MDS caps, although these contents are complex and... Sheng Xie

12/28/2021

02:51 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

I tested case C. as you guessed, A-node can still see file0 after B-node deletes file0. but when 'll /cephfs' is exec... Sheng Xie

12/27/2021

07:54 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

Xiubo Li wrote:
> Why do you think the default value is 1s ? Should it be 0 for ceph-fuse. More detail please see ... Sheng Xie

03:42 AM CephFS Feature #53730: ceph-fuse: suppor "entry_timeout" and "attr_timeout" options for improve performance

Sorry, I didn't test kclient I just compared the performance of ceph-fuse mount point before and after setting 'timeo... Sheng Xie