def get_data(self):
cmd = ShellCommand('gstatus -o json', timeout=10)
cmd.run()
cfg.log.debug("gstatus command returned %d" % cmd.rc)
if cmd.rc == 0:
# ignore the timestamp that is normally returned by the gstatus command
return json.loads(cmd.stdout[0][27:])
else:
return None
def get_data(self):
# use ceph commands to get the data we need - or could
# opt to parse ceph.conf with the configparser module?
ceph_data = {}
ceph_data['usable_capacity'] = 0
ceph_data['nodes_active'] = 0
ceph_data['raw_capacity'] = 0
ceph_data['raw_used'] = 0
ceph_data['used_capacity'] = 0
ceph_nodes = set()
# use ceph -s to get information about the monitors
cmd = ShellCommand('ceph -s -f json')
cmd.run()
cfg.log.debug("ceph -s command completed rc=%d" % cmd.rc)
if cmd.rc == 0:
js = json.loads(cmd.stdout[1])
# extract the mon information from the ceph output
for mon in js['monmap']['mons']:
# node info will look like this - 192.168.122.111:6789/0
# and we only want the IP address
ceph_nodes.add(mon['addr'].split(':')[0])
# add the osd nodes to the ceph_nodes list
cmd = ShellCommand('ceph osd tree -f json')
cmd.run()
cfg.log.debug("ceph osd tree command completed rc=%d" % cmd.rc)
if cmd.rc == 0:
js = json.loads(cmd.stdout[1])
for osd_element in js['nodes']:
if osd_element['type'] == 'host':
hostname = osd_element['name']
if not hostname[0].isdigit():
hostname = host_2_ip(hostname)
ceph_nodes.add(hostname)
ceph_data['node_count'] = len(ceph_nodes)
cmd = ShellCommand('ceph df -f json')
cmd.run()
cfg.log.debug("ceph df command completed rc=%d" % cmd.rc)
if cmd.rc == 0:
js = json.loads(cmd.stdout[1])
ceph_data['raw_capacity'] = js['stats']['total_bytes']
ceph_data['raw_used'] = js['stats']['total_used_bytes']
# calculate the used bytes, which is the logical view of space
# space consumption (i.e. as viewed from the client)
for pool in js['pools']:
ceph_data['used_capacity'] += pool['stats']['bytes_used']
return ceph_data
