ceph/src/pybind/mgr/status/module.py

   1
   2 """
   3 High level status display commands
   4 """
   5
   6 from collections import defaultdict
   7 from prettytable import PrettyTable
   8 import errno
   9 import fnmatch
  10 import mgr_util
  11 import prettytable
  12 import six
  13 import json
  14
  15 from mgr_module import MgrModule, HandleCommandResult
  16
  17
  18 class Module(MgrModule):
  19     COMMANDS = [
  20         {
  21             "cmd": "fs status "
  22                    "name=fs,type=CephString,req=false",
  23             "desc": "Show the status of a CephFS filesystem",
  24             "perm": "r"
  25         },
  26         {
  27             "cmd": "osd status "
  28                    "name=bucket,type=CephString,req=false",
  29             "desc": "Show the status of OSDs within a bucket, or all",
  30             "perm": "r"
  31         },
  32     ]
  33
  34
  35     def get_latest(self, daemon_type, daemon_name, stat):
  36         data = self.get_counter(daemon_type, daemon_name, stat)[stat]
  37         #self.log.error("get_latest {0} data={1}".format(stat, data))
  38         if data:
  39             return data[-1][1]
  40         else:
  41             return 0
  42
  43     def get_rate(self, daemon_type, daemon_name, stat):
  44         data = self.get_counter(daemon_type, daemon_name, stat)[stat]
  45
  46         #self.log.error("get_latest {0} data={1}".format(stat, data))
  47         if data and len(data) > 1 and data[-1][0] != data[-2][0]:
  48             return (data[-1][1] - data[-2][1]) / float(data[-1][0] - data[-2][0])
  49         else:
  50             return 0
  51
  52     def handle_fs_status(self, cmd):
  53         output = ""
  54         json_output = defaultdict(list)
  55         output_format = cmd.get('format', 'plain')
  56
  57         fs_filter = cmd.get('fs', None)
  58
  59         mds_versions = defaultdict(list)
  60
  61         fsmap = self.get("fs_map")
  62         for filesystem in fsmap['filesystems']:
  63             if fs_filter and filesystem['mdsmap']['fs_name'] != fs_filter:
  64                 continue
  65
  66             rank_table = PrettyTable(
  67                 ("RANK", "STATE", "MDS", "ACTIVITY", "DNS", "INOS"),
  68                 border=False,
  69             )
  70             rank_table.left_padding_width = 0
  71             rank_table.right_padding_width = 2
  72
  73             mdsmap = filesystem['mdsmap']
  74
  75             client_count = 0
  76
  77             for rank in mdsmap["in"]:
  78                 up = "mds_{0}".format(rank) in mdsmap["up"]
  79                 if up:
  80                     gid = mdsmap['up']["mds_{0}".format(rank)]
  81                     info = mdsmap['info']['gid_{0}'.format(gid)]
  82                     dns = self.get_latest("mds", info['name'], "mds_mem.dn")
  83                     inos = self.get_latest("mds", info['name'], "mds_mem.ino")
  84
  85                     if rank == 0:
  86                         client_count = self.get_latest("mds", info['name'],
  87                                                        "mds_sessions.session_count")
  88                     elif client_count == 0:
  89                         # In case rank 0 was down, look at another rank's
  90                         # sessionmap to get an indication of clients.
  91                         client_count = self.get_latest("mds", info['name'],
  92                                                        "mds_sessions.session_count")
  93
  94                     laggy = "laggy_since" in info
  95
  96                     state = info['state'].split(":")[1]
  97                     if laggy:
  98                         state += "(laggy)"
  99                     if state == "active" and not laggy:
 100                         c_state = mgr_util.colorize(state, mgr_util.GREEN)
 101                     else:
 102                         c_state = mgr_util.colorize(state, mgr_util.YELLOW)
 103
 104                     # Populate based on context of state, e.g. client
 105                     # ops for an active daemon, replay progress, reconnect
 106                     # progress
 107                     activity = ""
 108
 109                     if state == "active":
 110                         rate = self.get_rate("mds", info['name'], "mds_server.handle_client_request")
 111                         if output_format not in ('json', 'json-pretty'):
 112                             activity = "Reqs: " + mgr_util.format_dimless(rate, 5) + "/s"
 113
 114                     metadata = self.get_metadata('mds', info['name'])
 115                     mds_versions[metadata.get('ceph_version', "unknown")].append(info['name'])
 116                     if output_format in ('json', 'json-pretty'):
 117                         json_output['mdsmap'].append({
 118                             'rank': rank,
 119                             'name': info['name'],
 120                             'state': state,
 121                             'rate': rate if state == "active" else "0",
 122                             'dns': dns,
 123                             'inos': inos
 124                         })
 125                     else:
 126                         rank_table.add_row([
 127                             mgr_util.bold(rank.__str__()), c_state, info['name'],
 128                             activity,
 129                             mgr_util.format_dimless(dns, 5),
 130                             mgr_util.format_dimless(inos, 5)
 131                         ])
 132                 else:
 133                     if output_format in ('json', 'json-pretty'):
 134                         json_output['mdsmap'].append({
 135                             'rank': rank,
 136                             'state': "failed"
 137                         })
 138                     else:
 139                         rank_table.add_row([
 140                             rank, "failed", "", "", "", ""
 141                         ])
 142
 143             # Find the standby replays
 144             for gid_str, daemon_info in six.iteritems(mdsmap['info']):
 145                 if daemon_info['state'] != "up:standby-replay":
 146                     continue
 147
 148                 inos = self.get_latest("mds", daemon_info['name'], "mds_mem.ino")
 149                 dns = self.get_latest("mds", daemon_info['name'], "mds_mem.dn")
 150
 151                 events = self.get_rate("mds", daemon_info['name'], "mds_log.replayed")
 152                 if output_format not in ('json', 'json-pretty'):
 153                     activity = "Evts: " + mgr_util.format_dimless(events, 5) + "/s"
 154
 155                 metadata = self.get_metadata('mds', daemon_info['name'])
 156                 mds_versions[metadata.get('ceph_version', "unknown")].append(daemon_info['name'])
 157
 158                 if output_format in ('json', 'json-pretty'):
 159                     json_output['mdsmap'].append({
 160                         'rank': rank,
 161                         'name': daemon_info['name'],
 162                         'state': 'standby-replay',
 163                         'events': events,
 164                         'dns': 5,
 165                         'inos': 5
 166                     })
 167                 else:
 168                     rank_table.add_row([
 169                         "{0}-s".format(daemon_info['rank']), "standby-replay",
 170                         daemon_info['name'], activity,
 171                         mgr_util.format_dimless(dns, 5),
 172                         mgr_util.format_dimless(inos, 5)
 173                     ])
 174
 175             df = self.get("df")
 176             pool_stats = dict([(p['id'], p['stats']) for p in df['pools']])
 177             osdmap = self.get("osd_map")
 178             pools = dict([(p['pool'], p) for p in osdmap['pools']])
 179             metadata_pool_id = mdsmap['metadata_pool']
 180             data_pool_ids = mdsmap['data_pools']
 181
 182             pools_table = PrettyTable(["POOL", "TYPE", "USED", "AVAIL"],
 183                                       border=False)
 184             pools_table.left_padding_width = 0
 185             pools_table.right_padding_width = 2
 186             for pool_id in [metadata_pool_id] + data_pool_ids:
 187                 pool_type = "metadata" if pool_id == metadata_pool_id else "data"
 188                 stats = pool_stats[pool_id]
 189
 190                 if output_format in ('json', 'json-pretty'):
 191                     json_output['pools'].append({
 192                         'id': pool_id,
 193                         'name': pools[pool_id]['pool_name'],
 194                         'type': pool_type,
 195                         'used': stats['bytes_used'],
 196                         'avail': stats['max_avail']
 197                     })
 198                 else:
 199                     pools_table.add_row([
 200                         pools[pool_id]['pool_name'], pool_type,
 201                         mgr_util.format_bytes(stats['bytes_used'], 5),
 202                         mgr_util.format_bytes(stats['max_avail'], 5)
 203                     ])
 204
 205             if output_format in ('json', 'json-pretty'):
 206                 json_output['clients'].append({
 207                     'fs': mdsmap['fs_name'],
 208                     'clients': client_count,
 209                 })
 210             else:
 211                 output += "{0} - {1} clients\n".format(
 212                     mdsmap['fs_name'], client_count)
 213                 output += "=" * len(mdsmap['fs_name']) + "\n"
 214                 output += rank_table.get_string()
 215                 output += "\n" + pools_table.get_string() + "\n"
 216
 217         if not output and not json_output and fs_filter is not None:
 218             return errno.EINVAL, "", "Invalid filesystem: " + fs_filter
 219
 220         standby_table = PrettyTable(["STANDBY MDS"], border=False)
 221         standby_table.left_padding_width = 0
 222         standby_table.right_padding_width = 2
 223         for standby in fsmap['standbys']:
 224             metadata = self.get_metadata('mds', standby['name'])
 225             mds_versions[metadata.get('ceph_version', "unknown")].append(standby['name'])
 226
 227             if output_format in ('json', 'json-pretty'):
 228                 json_output['mdsmap'].append({
 229                     'name': standby['name'],
 230                     'state': "standby"
 231                 })
 232             else:
 233                 standby_table.add_row([standby['name']])
 234
 235         if output_format not in ('json', 'json-pretty'):
 236             output += "\n" + standby_table.get_string() + "\n"
 237
 238         if len(mds_versions) == 1:
 239             if output_format in ('json', 'json-pretty'):
 240                 json_output['mds_version'] = list(mds_versions)[0]
 241             else:
 242                 output += "MDS version: {0}".format(list(mds_versions)[0])
 243         else:
 244             version_table = PrettyTable(["VERSION", "DAEMONS"],
 245                                         border=False)
 246             version_table.left_padding_width = 0
 247             version_table.right_padding_width = 2
 248             for version, daemons in six.iteritems(mds_versions):
 249                 if output_format in ('json', 'json-pretty'):
 250                     json_output['mds_version'].append({
 251                         'version': version,
 252                         'daemons': daemons
 253                     })
 254                 else:
 255                     version_table.add_row([
 256                         version,
 257                         ", ".join(daemons)
 258                     ])
 259             if output_format not in ('json', 'json-pretty'):
 260                 output += version_table.get_string() + "\n"
 261
 262         if output_format == "json":
 263             return HandleCommandResult(stdout=json.dumps(json_output, sort_keys=True))
 264         elif output_format == "json-pretty":
 265             return HandleCommandResult(stdout=json.dumps(json_output, sort_keys=True, indent=4, separators=(',', ': ')))
 266         else:
 267             return HandleCommandResult(stdout=output)
 268
 269     def handle_osd_status(self, cmd):
 270         osd_table = PrettyTable(['ID', 'HOST', 'USED', 'AVAIL', 'WR OPS',
 271                                  'WR DATA', 'RD OPS', 'RD DATA', 'STATE'],
 272                                 border=False)
 273         osd_table.align['ID'] = 'r'
 274         osd_table.align['HOST'] = 'l'
 275         osd_table.align['USED'] = 'r'
 276         osd_table.align['AVAIL'] = 'r'
 277         osd_table.align['WR OPS'] = 'r'
 278         osd_table.align['WR DATA'] = 'r'
 279         osd_table.align['RD OPS'] = 'r'
 280         osd_table.align['RD DATA'] = 'r'
 281         osd_table.align['STATE'] = 'l'
 282         osd_table.left_padding_width = 0
 283         osd_table.right_padding_width = 2
 284         osdmap = self.get("osd_map")
 285
 286         filter_osds = set()
 287         bucket_filter = None
 288         if 'bucket' in cmd:
 289             self.log.debug("Filtering to bucket '{0}'".format(cmd['bucket']))
 290             bucket_filter = cmd['bucket']
 291             crush = self.get("osd_map_crush")
 292             found = False
 293             for bucket in crush['buckets']:
 294                 if fnmatch.fnmatch(bucket['name'], bucket_filter):
 295                     found = True
 296                     filter_osds.update([i['id'] for i in bucket['items']])
 297
 298             if not found:
 299                 msg = "Bucket '{0}' not found".format(bucket_filter)
 300                 return errno.ENOENT, msg, ""
 301
 302         # Build dict of OSD ID to stats
 303         osd_stats = dict([(o['osd'], o) for o in self.get("osd_stats")['osd_stats']])
 304
 305         for osd in osdmap['osds']:
 306             osd_id = osd['osd']
 307             if bucket_filter and osd_id not in filter_osds:
 308                 continue
 309
 310             hostname = ""
 311             kb_used = 0
 312             kb_avail = 0
 313
 314             if osd_id in osd_stats:
 315                 metadata = self.get_metadata('osd', "%s" % osd_id)
 316                 stats = osd_stats[osd_id]
 317                 hostname = metadata['hostname']
 318                 kb_used = stats['kb_used'] * 1024
 319                 kb_avail = stats['kb_avail'] * 1024
 320
 321             osd_table.add_row([osd_id, hostname,
 322                                mgr_util.format_bytes(kb_used, 5),
 323                                mgr_util.format_bytes(kb_avail, 5),
 324                                mgr_util.format_dimless(self.get_rate("osd", osd_id.__str__(), "osd.op_w") +
 325                                self.get_rate("osd", osd_id.__str__(), "osd.op_rw"), 5),
 326                                mgr_util.format_bytes(self.get_rate("osd", osd_id.__str__(), "osd.op_in_bytes"), 5),
 327                                mgr_util.format_dimless(self.get_rate("osd", osd_id.__str__(), "osd.op_r"), 5),
 328                                mgr_util.format_bytes(self.get_rate("osd", osd_id.__str__(), "osd.op_out_bytes"), 5),
 329                                ','.join(osd['state']),
 330                                ])
 331
 332         return 0, osd_table.get_string(), ""
 333
 334     def handle_command(self, inbuf, cmd):
 335         self.log.error("handle_command")
 336
 337         if cmd['prefix'] == "fs status":
 338             return self.handle_fs_status(cmd)
 339         elif cmd['prefix'] == "osd status":
 340             return self.handle_osd_status(cmd)
 341         else:
 342             # mgr should respect our self.COMMANDS and not call us for
 343             # any prefix we don't advertise
 344             raise NotImplementedError(cmd['prefix'])