https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-12284 Lustre <p>On a server, I umounted the OST, and mount the clietn using “nolazystatfs ” option, expecting df to be blocked. However:</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@el7-vm1 ~]# umount /mnt/lustre_ost0 [root@el7-vm2 ~]# mount -t lustre 10.0.1.148@tcp:/global -o nolazystatfs /mnt/global/ </pre> </div></div> <p>However, only the first "df" is blocked at all. Other "df" can be run without any block at all</p> <div class="preformatted panel" style="border-width: 1px;"><div class="preformattedContent panelContent"> <pre>[root@server17-el7-vm2 ~]# df ^C^C [root@server17-el7-vm2 ~]# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 10189076 1632284 8016172 17% / devtmpfs 931196 0 931196 0% /dev tmpfs 941176 0 941176 0% /dev/shm tmpfs 941176 8496 932680 1% /run tmpfs 941176 0 941176 0% /sys/fs/cgroup tmpfs 188236 0 188236 0% /run/user/0 10.0.1.148@tcp:/global 14495148 107992 13551572 1% /mnt/global [root@server17-el7-vm2 ~]# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 10189076 1632284 8016172 17% / devtmpfs 931196 0 931196 0% /dev tmpfs 941176 0 941176 0% /dev/shm tmpfs 941176 8496 932680 1% /run tmpfs 941176 0 941176 0% /sys/fs/cgroup tmpfs 188236 0 188236 0% /run/user/0 10.0.1.148@tcp:/global 14495148 107992 13551572 1% /mnt/global [root@server17-el7-vm2 ~]# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda1 10189076 1632284 8016172 17% / devtmpfs 931196 0 931196 0% /dev tmpfs 941176 0 941176 0% /dev/shm tmpfs 941176 8496 932680 1% /run tmpfs 941176 0 941176 0% /sys/fs/cgroup tmpfs 188236 0 188236 0% /run/user/0 10.0.1.148@tcp:/global 14495148 107992 13551572 1% /mnt/global </pre> </div></div> <p>This might not a big deal because I guess almost nobody wants to be blocked when running "df". However, it is not the expected behavior anyway. Am I misunderstanding the behavior of no-lazystatfs?</p> LU-12284

Inactive OST doesn't block client without lazystatfs feature

Improvement Minor Open Unresolved WC Triage Li Xi Fri, 10 May 2019 10:04:50 +0000 Fri, 10 May 2019 10:04:50 +0000 Lustre 2.12.1 0 2 Development Rank 1|i00g3j: Rank (Obsolete) 9223372036854775807