Re: [ceph-users] Cephfs I/O when no I/O operations are submitted

ian Balzer 写道： > > > Hello, > > On Mon, 14 Dec 2015 11:46:43 +0800 xiafei wrote: > >> Hi all, >> I have a question about the I/O of cephfs. >> I configure cephfs with 2 OSDs, and 300PGs in two HDDs. Then I use the >> iostat (iostat -kx 1 /dev/sdd1)

[ceph-users] Cephfs I/O when no I/O operations are submitted

Hi all, I have a question about the I/O of cephfs. I configure cephfs with 2 OSDs, and 300PGs in two HDDs. Then I use the iostat (iostat -kx 1 /dev/sdd1) to monitor the I/Os of the HDDs (/dev/sdd1). The result is as follows: The iostat shows that there are write requests every second. H

Re: [ceph-users] Questions about MDLog size and prezero operation

Dear John, Thanks for your reply. Fei Xia > 在 2015年11月19日，18:07，John Spray 写道： > > On Thu, Nov 19, 2015 at 9:43 AM, xiafei wrote: >> Hi, all: >>I have two questions about MDLog: >> >> 1. The max number of logsegments per MDlog (mds_log_max_

[ceph-users] Questions about MDLog size and prezero operation

Hi, all: I have two questions about MDLog: 1. The max number of logsegments per MDlog (mds_log_max_segments) is configured to be 30 in the config_opts.h file. However, the MDLog doesn’t check the number of logsegments when it start a new segment. The configuration is only used when the