Disconnecting a volume with multipath generates excessive multipath calls
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
OpenStack Compute (nova) |
In Progress
|
Low
|
Pavel Kholkin |
Bug Description
I have a compute node with 20 volumes attached using iscsi and multipath.
Each multipath device has 4 iscsi devices.
When I disconnect a volume it generates 779 multipath -ll calls.
iscsiadm -m node --rescan
iscsiadm -m session --rescan
multipath - r
multipath -ll /dev/sdch
multipath -ll /dev/sdcg
multipath -ll /dev/sdcf
multipath -ll /dev/sdce
multipath -ll /dev/sdcd
multipath -ll /dev/sdcc
multipath -ll /dev/sdcb
multipath -ll /dev/sdca
multipath -ll /dev/sdbz
multipath -ll /dev/sdby
multipath -ll /dev/sdbx
multipath -ll /dev/sdbw
multipath -ll /dev/sdbv
multipath -ll /dev/sdbu
multipath -ll /dev/sdbt
multipath -ll /dev/sdbs
multipath -ll /dev/sdbr
multipath -ll /dev/sdbq
multipath -ll /dev/sdbp
multipath -ll /dev/sdbo
multipath -ll /dev/sdbn
multipath -ll /dev/sdbm
multipath -ll /dev/sdbl
multipath -ll /dev/sdbk
multipath -ll /dev/sdbj
multipath -ll /dev/sdbi
multipath -ll /dev/sdbh
multipath -ll /dev/sdbg
multipath -ll /dev/sdbf
multipath -ll /dev/sdbe
multipath -ll /dev/sdbd
multipath -ll /dev/sdbc
multipath -ll /dev/sdbb
multipath -ll /dev/sdba
----
...... And so on for 779 times
cp /dev/stdin /sys/block/
cp /dev/stdin /sys/block/
cp /dev/stdin /sys/block/
cp /dev/stdin /sys/block/
multipath - r
----
tags: | added: libvirt volumes |
Changed in nova: | |
importance: | Undecided → Low |
status: | New → Confirmed |
Changed in nova: | |
assignee: | nobody → Vladik Romanovsky (vladik-romanovsky) |
Changed in nova: | |
assignee: | Keiichi KII (k-keiichi) → Pavel Kholkin (pkholkin) |
summary: |
- Diconnecting a volume with multipath generates excesive multipath calls + Disconnecting a volume with multipath generates excessive multipath + calls |
tags: | added: multipath |
Sounds more like a cinder issue, although the detach probably gets called through nova.