Build failed with " You are already running a stack.sh session"

[Daniel Berrange]

Jenkins failed a job on tempest checks

http://logs.openstack.org/20244/1/check/gate-tempest-devstack-vm/27762/console.html

15:22:45 [gate-tempest-devstack-vm] $ /bin/bash -xe /tmp/hudson5320904758380155333.sh
15:22:45 + export PYTHONUNBUFFERED=true
15:22:45 + PYTHONUNBUFFERED=true
15:22:45 + export DEVSTACK_GATE_TEMPEST=1
15:22:45 + DEVSTACK_GATE_TEMPEST=1
15:22:45 + cp devstack-gate/devstack-vm-gate-wrap.sh ./safe-devstack-vm-gate-wrap.sh
15:22:45 + ./safe-devstack-vm-gate-wrap.sh
15:23:28 Triggered by: https://review.openstack.org/20244 patchset 1
15:23:28 Pipeline: check
15:23:31 Running devstack
15:23:31 You are already running a stack.sh session.
15:23:31 To rejoin this session type 'screen -x stack'.
15:23:31 To destroy this session, type './unstack.sh'.
15:23:36 Build step 'Execute shell' marked build as failure

[Matt Riedemann (mriedem)]

Just hit this here:

http://logs.openstack.org/42/56642/2/check/check-tempest-devstack-vm-full/ed93bb3/console.html

[Joe Gordon (jogo)]

message:"You are already running a stack.sh session." AND filename:"console.html"

400+ hits in 48 hours and appears to be fixed already.

[Clark Boylan (cboylan)]

There was a problem with the jenkins gearman plugin running against an updated version of jenkins that caused slave nodes to be reused at a very high rate. This was fixed by downgrading to the latest LTS jenkins release and using that version of jenkins instead. This should give us much more internal jenkins api stability.