def test_daemon_kill_during_pvc_pod_creation_deletion_and_io(
self, setup_base, multi_pvc_factory, pod_factory
):
"""
Kill ceph daemons while PVCs creation, PVCs deletion, pods creation, pods deletion
and IO are progressing
"""
daemons_to_kill = [
"mgr",
"mon",
"osd",
"mds",
]
(
pvc_objs,
pod_objs,
rwx_pod_objs,
cephfs_pvc_for_pods,
rbd_pvc_for_pods,
) = setup_base
num_of_pods_to_delete = 3
num_of_io_pods = 1
num_pvc_create_during_disruption = len(
self.access_modes_cephfs + self.access_modes_rbd
)
# Select pods to be deleted
pods_to_delete = pod_objs[:num_of_pods_to_delete]
pods_to_delete.extend(
[
pod
for pod in rwx_pod_objs
for pod_obj in pods_to_delete
if (pod_obj.pvc == pod.pvc)
]
)
# Select pods to run IO
io_pods = pod_objs[
num_of_pods_to_delete : num_of_pods_to_delete + num_of_io_pods
]
io_pods.extend(
[
pod
for pod in rwx_pod_objs
for pod_obj in io_pods
if (pod_obj.pvc == pod.pvc)
]
)
# Select pods which are having PVCs to delete
pods_for_pvc = pod_objs[num_of_pods_to_delete + num_of_io_pods :]
pvcs_to_delete = [pod_obj.pvc for pod_obj in pods_for_pvc]
pods_for_pvc.extend(
[
pod
for pod in rwx_pod_objs
for pod_obj in pods_for_pvc
if (pod_obj.pvc == pod.pvc)
]
)
io_pods = [
pod_obj
for pod_obj in io_pods
if pod_obj.pvc in select_unique_pvcs([pod_obj.pvc for pod_obj in io_pods])
]
log.info(
f"{len(pods_to_delete)} pods selected for deletion in which "
f"{len(pods_to_delete) - num_of_pods_to_delete} pairs of pod "
f"share same RWX PVC"
)
log.info(
f"{len(io_pods)} pods selected for running IO in which one "
f"pair of pod share same RWX PVC"
)
no_of_rwx_pvcs_delete = len(pods_for_pvc) - len(pvcs_to_delete)
log.info(
f"{len(pvcs_to_delete)} PVCs selected for deletion. "
f"RWO PVCs: {len(pvcs_to_delete) - no_of_rwx_pvcs_delete}, "
f"RWX PVCs: {no_of_rwx_pvcs_delete}"
)
pod_functions = {
"mds": partial(get_mds_pods),
"mon": partial(get_mon_pods),
"mgr": partial(get_mgr_pods),
"osd": partial(get_osd_pods),
}
# Disruption object for each daemon type
disruption_ops = [disruption_helpers.Disruptions() for _ in daemons_to_kill]
# Select the resource of each type
for disruption, pod_type in zip(disruption_ops, daemons_to_kill):
disruption.set_resource(resource=pod_type)
executor = ThreadPoolExecutor(
max_workers=len(pod_objs)
+ len(rwx_pod_objs)
+ len(rbd_pvc_for_pods)
+ len(cephfs_pvc_for_pods)
+ len(daemons_to_kill)
+ num_pvc_create_during_disruption
)
# Get number of pods of the type given in daemons_to_kill list
num_of_resource_pods = [
len(pod_functions[resource_name]()) for resource_name in daemons_to_kill
]
# Fetch PV names to verify after deletion
pv_objs = []
for pvc_obj in pvcs_to_delete:
pv_objs.append(pvc_obj.backed_pv_obj)
# Fetch volume details from pods for the purpose of verification
node_pv_dict = {}
for pod_obj in pods_to_delete:
pod_info = pod_obj.get()
node = pod_info["spec"]["nodeName"]
pvc = pod_info["spec"]["volumes"][0]["persistentVolumeClaim"]["claimName"]
for pvc_obj in pvc_objs:
if pvc_obj.name == pvc:
pv = pvc_obj.backed_pv
break
if node in node_pv_dict:
node_pv_dict[node].append(pv)
else:
node_pv_dict[node] = [pv]
# Fetch image uuid associated with PVCs to be deleted
pvc_uuid_map = {}
for pvc_obj in pvcs_to_delete:
pvc_uuid_map[pvc_obj] = pvc_obj.image_uuid
log.info("Fetched image uuid associated with each PVC")
# Do setup on pods for running IO
log.info("Setting up pods for running IO.")
for pod_obj in pod_objs + rwx_pod_objs:
if pod_obj.pvc.get_pvc_vol_mode == "Block":
storage_type = "block"
else:
storage_type = "fs"
executor.submit(pod_obj.workload_setup, storage_type=storage_type)
# Wait for setup on pods to complete
for pod_obj in pod_objs + rwx_pod_objs:
log.info(f"Waiting for IO setup to complete on pod {pod_obj.name}")
for sample in TimeoutSampler(360, 2, getattr, pod_obj, "wl_setup_done"):
if sample:
log.info(
f"Setup for running IO is completed on pod " f"{pod_obj.name}."
)
break
log.info("Setup for running IO is completed on all pods.")
# Start IO on pods having PVCs to delete to load data
pods_for_pvc_io = [
pod_obj
for pod_obj in pods_for_pvc
if pod_obj.pvc
in select_unique_pvcs([pod_obj.pvc for pod_obj in pods_for_pvc])
]
log.info("Starting IO on pods having PVCs to delete.")
self.run_io_on_pods(pods_for_pvc_io)
log.info("IO started on pods having PVCs to delete.")
log.info("Fetching IO results from the pods having PVCs to delete.")
for pod_obj in pods_for_pvc_io:
get_fio_rw_iops(pod_obj)
log.info("Verified IO result on pods having PVCs to delete.")
# Delete pods having PVCs to delete.
assert self.delete_pods(
pods_for_pvc
), "Couldn't delete pods which are having PVCs to delete."
for pod_obj in pods_for_pvc:
pod_obj.ocp.wait_for_delete(pod_obj.name)
log.info("Verified: Deleted pods which are having PVCs to delete.")
# Select daemon of each type of resource and identify the daemons running on each node
nodes_and_pids = {}
for disruption in disruption_ops:
disruption.select_daemon()
node_name = disruption.resource_obj[0].pod_data.get("spec").get("nodeName")
# Create node-daemons dict. Value as string for passing in the 'kill' command
nodes_and_pids[
node_name
] = f"{nodes_and_pids.get(node_name, '')} {disruption.daemon_pid}"
# Start IO on pods to be deleted
pods_to_delete_io = [
pod_obj
for pod_obj in pods_to_delete
if pod_obj.pvc
in select_unique_pvcs([pod_obj.pvc for pod_obj in pods_to_delete])
]
log.info("Starting IO on selected pods to be deleted.")
self.run_io_on_pods(pods_to_delete_io)
log.info("IO started on selected pods to be deleted.")
# Start creating new pods
log.info("Start creating new pods.")
pod_create_rbd = executor.submit(
helpers.create_pods,
rbd_pvc_for_pods,
pod_factory,
constants.CEPHBLOCKPOOL,
2,
)
pod_create_cephfs = executor.submit(
helpers.create_pods,
cephfs_pvc_for_pods,
pod_factory,
constants.CEPHFILESYSTEM,
2,
)
# Start creation of new CephFS PVCs.
log.info("Start creating new CephFS PVCs.")
pvc_create_cephfs = executor.submit(
multi_pvc_factory,
interface=constants.CEPHFILESYSTEM,
project=self.project,
storageclass=None,
size=self.pvc_size,
access_modes=self.access_modes_cephfs,
access_modes_selection="distribute_random",
status="",
num_of_pvc=len(self.access_modes_cephfs),
wait_each=False,
)
# Start creation of new RBD PVCs
log.info("Start creating new RBD PVCs.")
pvc_create_rbd = executor.submit(
multi_pvc_factory,
interface=constants.CEPHBLOCKPOOL,
project=self.project,
storageclass=None,
size=self.pvc_size,
access_modes=self.access_modes_rbd,
access_modes_selection="distribute_random",
status="",
num_of_pvc=len(self.access_modes_rbd),
wait_each=False,
)
# Start deleting PVCs
pvc_bulk_delete = executor.submit(delete_pvcs, pvcs_to_delete)
log.info("Started deleting PVCs")
# Start deleting pods
pod_bulk_delete = executor.submit(self.delete_pods, pods_to_delete)
log.info("Started deleting pods")
# Start IO on IO pods
self.run_io_on_pods(io_pods)
log.info("Started IO on IO pods")
# Wait for 1 second before killing daemons. This is to wait for the create/delete operations to start
sleep(1)
# Kill daemons
node_and_kill_proc = {}
log.info(f"Killing daemons of {daemons_to_kill}")
for node_name, pids in nodes_and_pids.items():
# Command to kill the daemon
kill_cmd = f"oc debug node/{node_name} -- chroot /host kill -9 {pids}"
# Create node-kill process map for verifying the result
node_and_kill_proc[node_name] = executor.submit(run_cmd, kill_cmd)
# Verify daemon kill process
for node_name, daemon_kill_proc in node_and_kill_proc.items():
# Get the type of daemons killed on the particular node
resources = [
disruption.resource
for disruption in disruption_ops
if disruption.daemon_pid in nodes_and_pids[node_name]
]
# 'daemon_kill_proc' result will be an empty string if command is success
cmd_out = daemon_kill_proc.result()
assert isinstance(cmd_out, str) and (not cmd_out), (
f"Failed to kill {resources } daemons in the node {node_name}. "
f"Daemon kill command output - {cmd_out}"
)
# Wait for new daemon to come up
[disruption.check_new_pid() for disruption in disruption_ops]
log.info("Verified daemons kill")
pods_deleted = pod_bulk_delete.result()
assert pods_deleted, "Deletion of pods failed."
# Verify pods are deleted
for pod_obj in pods_to_delete:
pod_obj.ocp.wait_for_delete(pod_obj.name, 300)
log.info("Verified: Pods are deleted.")
# Verify that the mount point is removed from nodes after deleting pod
node_pv_mounted = verify_pv_mounted_on_node(node_pv_dict)
for node, pvs in node_pv_mounted.items():
assert not pvs, (
f"PVs {pvs} is still present on node {node} after "
f"deleting the pods."
)
log.info(
"Verified: mount points are removed from nodes after deleting " "the pods"
)
pvcs_deleted = pvc_bulk_delete.result()
assert pvcs_deleted, "Deletion of PVCs failed."
# Verify PVCs are deleted
for pvc_obj in pvcs_to_delete:
pvc_obj.ocp.wait_for_delete(pvc_obj.name)
log.info("Verified: PVCs are deleted.")
# Getting result of PVC creation as list of PVC objects
log.info("Getting the result of CephFS PVC creation process")
pvc_objs_cephfs_new = pvc_create_cephfs.result()
log.info("Getting the result of RBD PVC creation process")
pvc_objs_rbd_new = pvc_create_rbd.result()
# Set interface argument for reference
for pvc_obj in pvc_objs_cephfs_new:
pvc_obj.interface = constants.CEPHFILESYSTEM
# Set interface argument for reference
for pvc_obj in pvc_objs_rbd_new:
pvc_obj.interface = constants.CEPHBLOCKPOOL
# Confirm PVCs are Bound
log.info("Verifying the new CephFS and RBD PVCs are Bound")
for pvc_obj in pvc_objs_cephfs_new + pvc_objs_rbd_new:
helpers.wait_for_resource_state(
resource=pvc_obj, state=constants.STATUS_BOUND, timeout=180
)
pvc_obj.reload()
log.info("Verified: New CephFS and RBD PVCs are Bound.")
# Getting result of pods creation as list of Pod objects
log.info("Getting the result of pods creation process")
pod_objs_rbd_new = pod_create_rbd.result()
pod_objs_cephfs_new = pod_create_cephfs.result()
# Verify new pods are Running
log.info("Verifying the new pods are Running")
for pod_obj in pod_objs_rbd_new + pod_objs_cephfs_new:
helpers.wait_for_resource_state(
resource=pod_obj, state=constants.STATUS_RUNNING, timeout=90
)
pod_obj.reload()
log.info("Verified: All new pods are Running.")
# Verify PVs are deleted
for pv_obj in pv_objs:
pv_obj.ocp.wait_for_delete(resource_name=pv_obj.name, timeout=300)
log.info("Verified: PVs are deleted.")
# Verify PV using ceph toolbox. Image/Subvolume should be deleted.
pool_name = default_ceph_block_pool()
for pvc_obj, uuid in pvc_uuid_map.items():
if pvc_obj.interface == constants.CEPHBLOCKPOOL:
ret = verify_volume_deleted_in_backend(
interface=constants.CEPHBLOCKPOOL,
image_uuid=uuid,
pool_name=pool_name,
)
if pvc_obj.interface == constants.CEPHFILESYSTEM:
ret = verify_volume_deleted_in_backend(
interface=constants.CEPHFILESYSTEM, image_uuid=uuid
)
assert (
ret
), f"Volume associated with PVC {pvc_obj.name} still exists in the backend"
log.info("Fetching IO results from the pods.")
for pod_obj in io_pods:
fio_result = pod_obj.get_fio_results()
err_count = fio_result.get("jobs")[0].get("error")
assert (
err_count == 0
), f"FIO error on pod {pod_obj.name}. FIO result: {fio_result}"
log.info("Verified IO result on pods.")
# Verify that the new PVCs are usable by creating new pods
log.info("Verify that the new PVCs are usable by creating new pods")
pod_objs_rbd_re = helpers.create_pods(
pvc_objs_rbd_new, pod_factory, constants.CEPHBLOCKPOOL, 2
)
pod_objs_cephfs_re = helpers.create_pods(
pvc_objs_cephfs_new, pod_factory, constants.CEPHFILESYSTEM, 2
)
# Verify pods are Running
log.info("Verifying the pods are Running")
for pod_obj in pod_objs_rbd_re + pod_objs_cephfs_re:
helpers.wait_for_resource_state(
resource=pod_obj, state=constants.STATUS_RUNNING, timeout=90
)
pod_obj.reload()
log.info(
"Successfully created and verified the status of the pods using the new CephFS and RBD PVCs."
)
new_pods = (
pod_objs_rbd_new
+ pod_objs_cephfs_new
+ pod_objs_rbd_re
+ pod_objs_cephfs_re
)
# Do setup on the new pods for running IO
log.info("Setting up the new pods for running IO.")
for pod_obj in new_pods:
if pod_obj.pvc.get_pvc_vol_mode == "Block":
storage_type = "block"
else:
storage_type = "fs"
executor.submit(pod_obj.workload_setup, storage_type=storage_type)
# Wait for setup on the new pods to complete
for pod_obj in new_pods:
log.info(f"Waiting for IO setup to complete on pod {pod_obj.name}")
for sample in TimeoutSampler(360, 2, getattr, pod_obj, "wl_setup_done"):
if sample:
log.info(
f"Setup for running IO is completed on pod " f"{pod_obj.name}."
)
break
log.info("Setup for running IO is completed on the new pods.")
# Start IO on the new pods
log.info("Start IO on the new pods")
self.run_io_on_pods(new_pods)
log.info("Started IO on the new pods")
log.info("Fetching IO results from the new pods.")
for pod_obj in new_pods:
get_fio_rw_iops(pod_obj)
log.info("Verified IO result on the new pods.")
# Verify number of pods of each daemon type
final_num_resource_name = [
len(pod_functions[resource_name]()) for resource_name in daemons_to_kill
]
assert final_num_resource_name == num_of_resource_pods, (
f"Total number of pods of each type is not matching with "
f"initial value. Total number of pods of each type before daemon kill: "
f"{num_of_resource_pods}. Total number of pods of each type present now: "
f"{final_num_resource_name}"
)
# Check ceph status
ceph_health_check(namespace=config.ENV_DATA["cluster_namespace"])
log.info("Ceph cluster health is OK")
def test_disruptive_during_pod_pvc_deletion_and_io(
self, interface, resource_to_delete, setup_base
):
"""
Delete ceph/rook pod while PVCs deletion, pods deletion and IO are
progressing
"""
pvc_objs, pod_objs, rwx_pod_objs = setup_base
namespace = pvc_objs[0].project.namespace
num_of_pods_to_delete = 3
num_of_io_pods = 1
# Select pods to be deleted
pods_to_delete = pod_objs[:num_of_pods_to_delete]
pods_to_delete.extend(
[
pod
for pod in rwx_pod_objs
for pod_obj in pods_to_delete
if (pod_obj.pvc == pod.pvc)
]
)
# Select pods to run IO
io_pods = pod_objs[
num_of_pods_to_delete : num_of_pods_to_delete + num_of_io_pods
]
io_pods.extend(
[
pod
for pod in rwx_pod_objs
for pod_obj in io_pods
if (pod_obj.pvc == pod.pvc)
]
)
# Select pods which are having PVCs to delete
pods_for_pvc = pod_objs[num_of_pods_to_delete + num_of_io_pods :]
pvcs_to_delete = [pod_obj.pvc for pod_obj in pods_for_pvc]
pods_for_pvc.extend(
[
pod
for pod in rwx_pod_objs
for pod_obj in pods_for_pvc
if (pod_obj.pvc == pod.pvc)
]
)
log.info(
f"{len(pods_to_delete)} pods selected for deletion in which "
f"{len(pods_to_delete) - num_of_pods_to_delete} pairs of pod "
f"share same RWX PVC"
)
log.info(
f"{len(io_pods)} pods selected for running IO in which "
f"{len(io_pods) - num_of_io_pods} pairs of pod share same "
f"RWX PVC"
)
no_of_rwx_pvcs_delete = len(pods_for_pvc) - len(pvcs_to_delete)
log.info(
f"{len(pvcs_to_delete)} PVCs selected for deletion. "
f"RWO PVCs: {len(pvcs_to_delete) - no_of_rwx_pvcs_delete}, "
f"RWX PVCs: {no_of_rwx_pvcs_delete}"
)
pod_functions = {
"mds": partial(get_mds_pods),
"mon": partial(get_mon_pods),
"mgr": partial(get_mgr_pods),
"osd": partial(get_osd_pods),
"rbdplugin": partial(get_plugin_pods, interface=interface),
"cephfsplugin": partial(get_plugin_pods, interface=interface),
"cephfsplugin_provisioner": partial(get_cephfsplugin_provisioner_pods),
"rbdplugin_provisioner": partial(get_rbdfsplugin_provisioner_pods),
"operator": partial(get_operator_pods),
}
disruption = disruption_helpers.Disruptions()
disruption.set_resource(resource=resource_to_delete)
executor = ThreadPoolExecutor(max_workers=len(pod_objs) + len(rwx_pod_objs))
# Get number of pods of type 'resource_to_delete'
num_of_resource_to_delete = len(pod_functions[resource_to_delete]())
# Fetch the number of Pods and PVCs
initial_num_of_pods = len(get_all_pods(namespace=namespace))
initial_num_of_pvc = len(get_all_pvcs(namespace=namespace)["items"])
# Fetch PV names to verify after deletion
pv_objs = []
for pvc_obj in pvcs_to_delete:
pvc_obj.reload()
pv_objs.append(pvc_obj.backed_pv_obj)
# Fetch volume details from pods for the purpose of verification
node_pv_dict = {}
for pod_obj in pods_to_delete:
pod_info = pod_obj.get()
node = pod_info["spec"]["nodeName"]
pvc = pod_info["spec"]["volumes"][0]["persistentVolumeClaim"]["claimName"]
for pvc_obj in pvc_objs:
if pvc_obj.name == pvc:
pvc_obj.reload()
pv = pvc_obj.backed_pv
break
if node in node_pv_dict:
node_pv_dict[node].append(pv)
else:
node_pv_dict[node] = [pv]
# Fetch image uuid associated with PVCs to be deleted
pvc_uuid_map = {}
for pvc_obj in pvcs_to_delete:
pvc_uuid_map[pvc_obj.name] = pvc_obj.image_uuid
log.info("Fetched image uuid associated with each PVC")
# Do setup on pods for running IO
log.info("Setting up pods for running IO.")
for pod_obj in pod_objs + rwx_pod_objs:
pvc_info = pod_obj.pvc.get()
if pvc_info["spec"]["volumeMode"] == "Block":
storage_type = "block"
else:
storage_type = "fs"
executor.submit(pod_obj.workload_setup, storage_type=storage_type)
# Wait for setup on pods to complete
for pod_obj in pod_objs + rwx_pod_objs:
log.info(f"Waiting for IO setup to complete on pod {pod_obj.name}")
for sample in TimeoutSampler(180, 2, getattr, pod_obj, "wl_setup_done"):
if sample:
log.info(
f"Setup for running IO is completed on pod " f"{pod_obj.name}."
)
break
log.info("Setup for running IO is completed on all pods.")
# Start IO on pods having PVCs to delete to load data
log.info("Starting IO on pods having PVCs to delete.")
self.run_io_on_pods(pods_for_pvc)
log.info("IO started on pods having PVCs to delete.")
log.info("Fetching IO results from the pods having PVCs to delete.")
for pod_obj in pods_for_pvc:
get_fio_rw_iops(pod_obj)
log.info("Verified IO result on pods having PVCs to delete.")
# Delete pods having PVCs to delete.
delete_pods(pods_for_pvc)
for pod_obj in pods_for_pvc:
pod_obj.ocp.wait_for_delete(pod_obj.name)
log.info("Verified: Deleted pods which are having PVCs to delete.")
# Start IO on pods to be deleted
log.info("Starting IO on pods to be deleted.")
self.run_io_on_pods(pods_to_delete)
log.info("IO started on pods to be deleted.")
# Start deleting PVCs
pvc_bulk_delete = executor.submit(delete_pvcs, pvcs_to_delete)
log.info("Started deleting PVCs")
# Start deleting pods
pod_bulk_delete = executor.submit(delete_pods, pods_to_delete, wait=False)
log.info("Started deleting pods")
# Start IO on IO pods
self.run_io_on_pods(io_pods)
log.info("Started IO on IO pods")
# Verify pvc deletion has started
pvc_deleting = executor.submit(
wait_for_resource_count_change,
func_to_use=get_all_pvcs,
previous_num=initial_num_of_pvc,
namespace=namespace,
change_type="decrease",
min_difference=1,
timeout=30,
interval=0.01,
)
# Verify pod deletion has started
pod_deleting = executor.submit(
wait_for_resource_count_change,
func_to_use=get_all_pods,
previous_num=initial_num_of_pods,
namespace=namespace,
change_type="decrease",
min_difference=1,
timeout=30,
interval=0.01,
)
assert pvc_deleting.result(), "Wait timeout: PVCs are not being deleted."
log.info("PVCs deletion has started.")
assert pod_deleting.result(), "Wait timeout: Pods are not being deleted."
log.info("Pods deletion has started.")
# Delete pod of type 'resource_to_delete'
disruption.delete_resource()
pod_bulk_delete.result()
# Verify pods are deleted
for pod_obj in pods_to_delete:
pod_obj.ocp.wait_for_delete(pod_obj.name, 300)
log.info("Verified: Pods are deleted.")
# Verify that the mount point is removed from nodes after deleting pod
node_pv_mounted = verify_pv_mounted_on_node(node_pv_dict)
for node, pvs in node_pv_mounted.items():
assert not pvs, (
f"PVs {pvs} is still present on node {node} after "
f"deleting the pods."
)
log.info(
"Verified: mount points are removed from nodes after deleting " "the pods"
)
pvcs_deleted = pvc_bulk_delete.result()
assert pvcs_deleted, "Deletion of PVCs failed."
# Verify PVCs are deleted
for pvc_obj in pvcs_to_delete:
pvc_obj.ocp.wait_for_delete(pvc_obj.name)
log.info("Verified: PVCs are deleted.")
# Verify PVs are deleted
for pv_obj in pv_objs:
pv_obj.ocp.wait_for_delete(resource_name=pv_obj.name, timeout=300)
log.info("Verified: PVs are deleted.")
# Verify PV using ceph toolbox. Image/Subvolume should be deleted.
pool_name = default_ceph_block_pool()
for pvc_name, uuid in pvc_uuid_map.items():
if interface == constants.CEPHBLOCKPOOL:
ret = verify_volume_deleted_in_backend(
interface=interface, image_uuid=uuid, pool_name=pool_name
)
if interface == constants.CEPHFILESYSTEM:
ret = verify_volume_deleted_in_backend(
interface=interface, image_uuid=uuid
)
assert ret, (
f"Volume associated with PVC {pvc_name} still exists " f"in backend"
)
log.info("Fetching IO results from the pods.")
for pod_obj in io_pods:
fio_result = pod_obj.get_fio_results()
err_count = fio_result.get("jobs")[0].get("error")
assert (
err_count == 0
), f"FIO error on pod {pod_obj.name}. FIO result: {fio_result}"
log.info("Verified IO result on pods.")
# Verify number of pods of type 'resource_to_delete'
final_num_resource_to_delete = len(pod_functions[resource_to_delete]())
assert final_num_resource_to_delete == num_of_resource_to_delete, (
f"Total number of {resource_to_delete} pods is not matching with "
f"initial value. Total number of pods before deleting a pod: "
f"{num_of_resource_to_delete}. Total number of pods present now: "
f"{final_num_resource_to_delete}"
)
# Check ceph status
ceph_health_check(namespace=config.ENV_DATA["cluster_namespace"])
log.info("Ceph cluster health is OK")
def test_daemon_kill_during_pvc_pod_creation_and_io(
self, interface, resource_name, setup, multi_pvc_factory, pod_factory
):
"""
Kill 'resource_name' daemon while PVCs creation, pods
creation and IO operation are progressing.
"""
num_of_new_pvcs = 5
pvc_objs, io_pods, pvc_objs_new_pods, access_modes = setup
proj_obj = pvc_objs[0].project
storageclass = pvc_objs[0].storageclass
pod_functions = {
"mds": partial(get_mds_pods),
"mon": partial(get_mon_pods),
"mgr": partial(get_mgr_pods),
"osd": partial(get_osd_pods),
"rbdplugin": partial(get_plugin_pods, interface=interface),
"cephfsplugin": partial(get_plugin_pods, interface=interface),
"cephfsplugin_provisioner": partial(get_cephfsplugin_provisioner_pods),
"rbdplugin_provisioner": partial(get_rbdfsplugin_provisioner_pods),
"operator": partial(get_operator_pods),
}
executor = ThreadPoolExecutor(max_workers=len(io_pods))
disruption = disruption_helpers.Disruptions()
disruption.set_resource(resource=resource_name)
# Get number of pods of type 'resource_name'
resource_pods_num = len(pod_functions[resource_name]())
# Do setup for running IO on pods
log.info("Setting up pods for running IO")
for pod_obj in io_pods:
if pod_obj.pvc.volume_mode == "Block":
storage_type = "block"
else:
storage_type = "fs"
executor.submit(pod_obj.workload_setup, storage_type=storage_type)
# Wait for setup on pods to complete
for pod_obj in io_pods:
log.info(f"Waiting for IO setup to complete on pod {pod_obj.name}")
for sample in TimeoutSampler(180, 2, getattr, pod_obj, "wl_setup_done"):
if sample:
log.info(
f"Setup for running IO is completed on pod " f"{pod_obj.name}."
)
break
log.info("Setup for running IO is completed on pods")
# Set daemon to be killed
disruption.select_daemon()
# Start creating new pods
log.info("Start creating new pods.")
bulk_pod_create = executor.submit(
helpers.create_pods, pvc_objs_new_pods, pod_factory, interface, 2
)
# Start creation of new PVCs
log.info("Start creating new PVCs.")
bulk_pvc_create = executor.submit(
multi_pvc_factory,
interface=interface,
project=proj_obj,
storageclass=storageclass,
size=self.pvc_size,
access_modes=access_modes,
access_modes_selection="distribute_random",
status="",
num_of_pvc=num_of_new_pvcs,
wait_each=False,
)
# Start IO on each pod
log.info("Start IO on pods")
for pod_obj in io_pods:
if pod_obj.pvc.volume_mode == "Block":
storage_type = "block"
else:
storage_type = "fs"
pod_obj.run_io(
storage_type=storage_type,
size="1G",
runtime=10,
fio_filename=f"{pod_obj.name}_io_file1",
)
log.info("IO started on all pods.")
# Kill daemon
disruption.kill_daemon()
# Getting result of PVC creation as list of PVC objects
pvc_objs_new = bulk_pvc_create.result()
# Confirm PVCs are Bound
for pvc_obj in pvc_objs_new:
helpers.wait_for_resource_state(
resource=pvc_obj, state=constants.STATUS_BOUND, timeout=180
)
pvc_obj.reload()
log.info("Verified: New PVCs are Bound.")
# Getting result of pods creation as list of Pod objects
pod_objs_new = bulk_pod_create.result()
# Verify new pods are Running
for pod_obj in pod_objs_new:
helpers.wait_for_resource_state(
resource=pod_obj, state=constants.STATUS_RUNNING
)
pod_obj.reload()
log.info("Verified: All new pods are Running.")
# Verify IO
log.info("Fetching IO results from IO pods.")
for pod_obj in io_pods:
fio_result = pod_obj.get_fio_results()
err_count = fio_result.get("jobs")[0].get("error")
assert (
err_count == 0
), f"FIO error on pod {pod_obj.name}. FIO result: {fio_result}"
log.info(f"IOPs after FIO on pod {pod_obj.name}:")
log.info(f"Read: {fio_result.get('jobs')[0].get('read').get('iops')}")
log.info(f"Write: {fio_result.get('jobs')[0].get('write').get('iops')}")
log.info("Verified IO result on IO pods.")
all_pod_objs = io_pods + pod_objs_new
# Fetch volume details from pods for the purpose of verification
node_pv_dict = {}
for pod in all_pod_objs:
pod_info = pod.get()
node = pod_info["spec"]["nodeName"]
pvc = pod_info["spec"]["volumes"][0]["persistentVolumeClaim"]["claimName"]
for pvc_obj in pvc_objs:
if pvc_obj.name == pvc:
pvc_obj.reload()
pv = pvc_obj.backed_pv
break
if node in node_pv_dict:
node_pv_dict[node].append(pv)
else:
node_pv_dict[node] = [pv]
# Delete pods
for pod_obj in all_pod_objs:
pod_obj.delete(wait=False)
# Verify pods are deleted
for pod_obj in all_pod_objs:
pod_obj.ocp.wait_for_delete(resource_name=pod_obj.name)
# Verify number of 'resource_name' type pods
final_resource_pods_num = len(pod_functions[resource_name]())
assert final_resource_pods_num == resource_pods_num, (
f"Total number of {resource_name} pods is not matching with "
f"initial value. Total number of pods before daemon kill: "
f"{resource_pods_num}. Total number of pods present now: "
f"{final_resource_pods_num}"
)
# Verify volumes are unmapped from nodes after deleting the pods
node_pv_mounted = helpers.verify_pv_mounted_on_node(node_pv_dict)
for node, pvs in node_pv_mounted.items():
assert not pvs, (
f"PVs {pvs} is still present on node {node} after "
f"deleting the pods."
)
log.info(
"Verified: mount points are removed from nodes after deleting " "the pods"
)
# Set volume mode on PVC objects
for pvc_obj in pvc_objs_new:
pvc_info = pvc_obj.get()
setattr(pvc_obj, "volume_mode", pvc_info["spec"]["volumeMode"])
# Verify that PVCs are reusable by creating new pods
all_pvc_objs = pvc_objs + pvc_objs_new
pod_objs_re = helpers.create_pods(all_pvc_objs, pod_factory, interface, 2)
# Verify pods are Running
for pod_obj in pod_objs_re:
helpers.wait_for_resource_state(
resource=pod_obj, state=constants.STATUS_RUNNING
)
pod_obj.reload()
log.info("Successfully created new pods using all PVCs.")
# Run IO on each of the newly created pods
for pod_obj in pod_objs_re:
if pod_obj.pvc.volume_mode == "Block":
storage_type = "block"
else:
storage_type = "fs"
pod_obj.run_io(
storage_type=storage_type,
size="1G",
runtime=10,
fio_filename=f"{pod_obj.name}_io_file2",
)
log.info("Fetching IO results from newly created pods")
for pod_obj in pod_objs_re:
fio_result = pod_obj.get_fio_results()
err_count = fio_result.get("jobs")[0].get("error")
assert (
err_count == 0
), f"FIO error on pod {pod_obj.name}. FIO result: {fio_result}"
log.info(f"IOPs after FIO on pod {pod_obj.name}:")
log.info(f"Read: {fio_result.get('jobs')[0].get('read').get('iops')}")
log.info(f"Write: {fio_result.get('jobs')[0].get('write').get('iops')}")
log.info("Verified IO result on newly created pods.")
