rbd_mirror_ops.sh

rbd_mirror_ops.sh

```
#!/bin/bash

set -x

rbdpool=data
rbdimage=a1
east=primary
west=secondary
rbdimagefeatures="--image-feature layering --image-feature exclusive-lock --image-feature object-map --image-feature fast-diff"

setup()
{
    echo "===   Creating image $1  ==="
    ../src/mrun $1 rbd create $rbdpool/$rbdimage --size 10G $rbdimagefeatures
    echo
    echo "===   Enabling mirror $1  ==="
    ../src/mrun $1 rbd mirror image enable $rbdpool/$rbdimage snapshot
    echo
    echo "===   Enabling snapshot schedule 1m $1  ==="
    ../src/mrun $1 rbd mirror snapshot schedule add --pool $rbdpool --image $rbdimage 1m
}

display()
{
    echo `date`
    echo "===   Mirror image status $east   ==="
    ../src/mrun $east rbd mirror image status $rbdpool/$rbdimage
    echo
    echo "===   Mirror image status $west   ==="
    ../src/mrun $west rbd mirror image status $rbdpool/$rbdimage
    echo
    echo "===   Mirror snapshot list $east  ==="
    ../src/mrun $east rbd -p $rbdpool snap ls $rbdimage --all
    echo
    echo "===   Mirror snapshot list $west   ==="
    ../src/mrun $west rbd -p $rbdpool snap ls $rbdimage --all
    echo
}

#Force promote cluster1 to have 2 primaries
forcePromote()
{
    echo
    echo "===   Force promote image on $1   ==="
    ../src/mrun $1 rbd mirror image promote $rbdpool/$rbdimage --force
    echo
}

#Demote hub
demote()
{
    echo "===   Demoting $1   ==="
    ../src/mrun $1 rbd mirror image demote $rbdpool/$rbdimage
    echo
    echo "===   Sleep for catch up  ==="
    sleep 4
}

resync()
{
    echo "===   Resync $1   ==="
    ../src/mrun $1 rbd mirror image resync $rbdpool/$rbdimage
    echo
    echo "===   Sleeping for 10 seconds for resync catch up   ==="
    sleep 10
}

performIO()
{
    echo "===   Perform IO on $1   ==="
    (../src/mrun $1 rbd bench --io-type write --io-size 4K --io-threads 2 --io-total 10G --io-pattern rand $rbdpool/$rbdimage) &
    echo
   # echo "===   Sleep for catch up ==="
   # sleep 10
}

promote()
{
    echo "===   Promote on $1   ==="
    ../src/mrun $1 rbd mirror image promote $rbdpool/$rbdimage
    echo
    echo "===   Sleep for catch up  ==="
    sleep 4
}

cleanup()
{
    echo "=== remove rbd mirror logs ==="
    > /home/ideepika/sdc/ceph3/ceph/build2/resync_logs/rbd_mirror_secondary.log
    > /home/ideepika/sdc/ceph3/ceph/build2/resync_logs/rbd_mirror_primary.log

    echo "=== remove logs ===="
    rm -rf run/$east/out/client* run/$east/out/rbd*; rm -rf run/$west/out/client* run/$west/out/rbd*

    echo "===   Delete image on $1   ==="
    ../src/mrun $1 rbd mirror image disable $rbdpool/$rbdimage --force
    ../src/mrun $1 rbd rm $rbdpool/$rbdimage

    echo "===   Force promote $2 ==="
    ../src/mrun $2 rbd mirror image promote $rbdpool/$rbdimage --force
    ../src/mrun secondary rbd mirror image disable data/a1 --force
    ../src/mrun primary rbd mirror image disable data/a1 --force

    echo "===   Delete image on $2 ==="
    ../src/mrun $1 rbd mirror image disable $rbdpool/$rbdimage --force
    ../src/mrun $2 rbd rm $rbdpool/$rbdimage
}

# create
cleanup $west $east
setup $west
sleep 15
display

# Use - 1
# perform in the background
#performIO $west
## wait for rbd mirror to start picking up the changes
#echo " waiting so mirroring can be in progress..."
#sleep 15
## while ios happening force promote
#forcePromote $east
#display

# Use - 1
# perform in the background
# # relocate - 1
# demote $west
# display
# demote $east
# display
# resync $west
# display

# # relocate - 2
# demote $east
# display
# promote $west
# display
# performIO $west
# display

# #relocate - 3
# demote $west
# display
# promote $east
# display
# performIO $east
# display

# # relocate - 4
# demote $east
# display
# promote $west
# display
# performIO $west
# display
# cleanup $west $east
```