Hi
Now the number of fd pointing /dev/mapper/control in multipathd process
increases when iscsi device logs in. The reason is that wait_dmevents
thread and uevqloop thread call _open_and_assign_control_fd concurrently.
If lock add to _open_and_assign_control_fd fun in lvm2/libdm/libdm-iface.c,
the
When two iscsi ips log in and out alternately and the following scripts run
at the same time,
#!/bin/bash
interval=5
while true
do
iscsiadm -m node -p 9.41.147.171 &> /dev/null
iscsiadm -m node -p 9.41.148.172 &> /dev/null
iscsiadm -m session &> /dev/null
rescan-sc
On Mon, Jul 13, 2020 at 03:40:39AM +0800, Austin Chang wrote:
> + # When using dmsetup directly instead of volume manager like lvm2,
> + # the first 4k of the metadata device should be zeroed to indicate
> + # empty metadata.
> + dd if=/dev/zero of=/dev/mapper/metadata bs=4k conv=notrunc
... d
