On Tue, Jun 19, 2018 at 02:27:29PM +0200, swadmin - levigo.de wrote:
> Hi @all
> I have a problem with mounting a large XFS filesystem which takes about
> 8-10 minutes.
>
>
>
> :~# df -h /graylog_data
> Filesystem Size Used Avail Use% Mounted on
> /dev/mapper/vgdata-graylog_data 11T 5.0T 5.1T 50% /graylog_data
>
> ----
>
> :~# xfs_info /dev/mapper/vgdata-graylog_data
> meta-data=/dev/mapper/vgdata-graylog_data isize=512 agcount=40805,
> agsize=65792 blks
41,000 AGs is a lot of metadata to load. Did someone growfs a 1G fs
into a 11T fs?
--D
> = sectsz=512 attr=2, projid32bit=1
> = crc=1 finobt=1 spinodes=0 rmapbt=0
> = reflink=0
> data = bsize=4096 blocks=2684612608, imaxpct=25
> = sunit=0 swidth=0 blks
> naming =version 2 bsize=4096 ascii-ci=0 ftype=1
> log =internal bsize=4096 blocks=2560, version=2
> = sectsz=512 sunit=0 blks, lazy-count=1
> realtime =none extsz=4096 blocks=0, rtextents=0
>
> ----
>
> :~# strace -f mount /dev/mapper/vgdata-graylog_data /graylog_data >
> /root/mount 2>&1
>
> [...]
>
> stat("/sbin/mount.xfs", 0x7ffe36bcfe80) = -1 ENOENT (No such file or
> directory)
> stat("/sbin/fs.d/mount.xfs", 0x7ffe36bcfe80) = -1 ENOENT (No such file
> or directory)
> stat("/sbin/fs/mount.xfs", 0x7ffe36bcfe80) = -1 ENOENT (No such file or
> directory)
> getuid() = 0
> geteuid() = 0
> getgid() = 0
> getegid() = 0
> prctl(PR_GET_DUMPABLE) = 1
> stat("/run", {st_mode=S_IFDIR|0755, st_size=720, ...}) = 0
> lstat("/run/mount/utab", {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
> open("/run/mount/utab", O_RDWR|O_CREAT|O_CLOEXEC, 0644) = 3
> close(3) = 0
> mount("/dev/mapper/vgdata-graylog_data", "/graylog_data", "xfs",
> MS_MGC_VAL, NULL
>
>
> [here is where the 10 minutes happen]
>
>
> ) = 0
> --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} ---
> close(1) = 0
> close(2) = 0
> exit_group(0) = ?
> +++ exited with 0 +++
>
> [Now the mount is ok]
>
>
> can anyone help me or know a kind of these problem. What else to try out?
>
> BR
> Sascha
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