import os
import signal
import subprocess
+import sys
import time
import arvados.commands._util as arv_cmd
logger = logging.getLogger('arvados.arv-mount')
+class Stat(object):
+ def __init__(self, prefix, interval,
+ egr_name, ing_name,
+ egr_func, ing_func):
+ self.prefix = prefix
+ self.interval = interval
+ self.egr_name = egr_name
+ self.ing_name = ing_name
+ self.egress = egr_func
+ self.ingress = ing_func
+ self.egr_prev = self.egress()
+ self.ing_prev = self.ingress()
+
+ def update(self):
+ egr = self.egress()
+ ing = self.ingress()
+
+ delta = " -- interval %.4f seconds %d %s %d %s" % (self.interval,
+ egr - self.egr_prev,
+ self.egr_name,
+ ing - self.ing_prev,
+ self.ing_name)
+
+ sys.stderr.write("crunchstat: %s %d %s %d %s%s\n" % (self.prefix,
+ egr,
+ self.egr_name,
+ ing,
+ self.ing_name,
+ delta))
+
+ self.egr_prev = egr
+ self.ing_prev = ing
+
+
+def statlogger(interval, keep, ops):
+ calls = Stat("keepcalls", interval, "put", "get",
+ keep.put_counter.get,
+ keep.get_counter.get)
+ net = Stat("net:keep0", interval, "tx", "rx",
+ keep.upload_counter.get,
+ keep.download_counter.get)
+ cache = Stat("keepcache", interval, "hit", "miss",
+ keep.hits_counter.get,
+ keep.misses_counter.get)
+ fuseops = Stat("fuseops", interval,"write", "read",
+ ops.write_ops_counter.get,
+ ops.read_ops_counter.get)
+ blk = Stat("blkio:0:0", interval, "write", "read",
+ ops.write_counter.get,
+ ops.read_counter.get)
+
+ while True:
+ time.sleep(interval)
+ calls.update()
+ net.update()
+ cache.update()
+ fuseops.update()
+ blk.update()
+
+
if __name__ == '__main__':
# Handle command line parameters
parser = argparse.ArgumentParser(
mount_mode = parser.add_mutually_exclusive_group()
- mount_mode.add_argument('--all', action='store_true', help="""Mount a subdirectory for each mode: home, shared, by_tag, by_id (default).""")
- mount_mode.add_argument('--home', action='store_true', help="""Mount only the user's home project.""")
- mount_mode.add_argument('--shared', action='store_true', help="""Mount only list of projects shared with the user.""")
- mount_mode.add_argument('--by-tag', action='store_true',
+ mount_mode.add_argument('--all', action='store_const', const='all', dest='mode',
+ help="""Mount a subdirectory for each mode: home, shared, by_tag, by_id (default if no --mount-* arguments are given).""")
+ mount_mode.add_argument('--custom', action='store_const', const=None, dest='mode',
+ help="""Mount a top level meta-directory with subdirectories as specified by additional --mount-* arguments (default if any --mount-* arguments are given).""")
+ mount_mode.add_argument('--home', action='store_const', const='home', dest='mode',
+ help="""Mount only the user's home project.""")
+ mount_mode.add_argument('--shared', action='store_const', const='shared', dest='mode',
+ help="""Mount only list of projects shared with the user.""")
+ mount_mode.add_argument('--by-tag', action='store_const', const='by_tag', dest='mode',
help="""Mount subdirectories listed by tag.""")
- mount_mode.add_argument('--by-id', action='store_true',
+ mount_mode.add_argument('--by-id', action='store_const', const='by_id', dest='mode',
help="""Mount subdirectories listed by portable data hash or uuid.""")
- mount_mode.add_argument('--project', type=str, help="""Mount a specific project.""")
- mount_mode.add_argument('--collection', type=str, help="""Mount only the specified collection.""")
+ mount_mode.add_argument('--by-pdh', action='store_const', const='by_pdh', dest='mode',
+ help="""Mount subdirectories listed by portable data hash.""")
+ mount_mode.add_argument('--project', type=str, metavar='UUID',
+ help="""Mount the specified project.""")
+ mount_mode.add_argument('--collection', type=str, metavar='UUID_or_PDH',
+ help="""Mount only the specified collection.""")
+
+ mounts = parser.add_argument_group('Custom mount options')
+ mounts.add_argument('--mount-by-pdh',
+ type=str, metavar='PATH', action='append', default=[],
+ help="Mount each readable collection at mountpoint/PATH/P where P is the collection's portable data hash.")
+ mounts.add_argument('--mount-by-id',
+ type=str, metavar='PATH', action='append', default=[],
+ help="Mount each readable collection at mountpoint/PATH/UUID and mountpoint/PATH/PDH where PDH is the collection's portable data hash and UUID is its UUID.")
+ mounts.add_argument('--mount-by-tag',
+ type=str, metavar='PATH', action='append', default=[],
+ help="Mount all collections with tag TAG at mountpoint/PATH/TAG/UUID.")
+ mounts.add_argument('--mount-home',
+ type=str, metavar='PATH', action='append', default=[],
+ help="Mount the current user's home project at mountpoint/PATH.")
+ mounts.add_argument('--mount-shared',
+ type=str, metavar='PATH', action='append', default=[],
+ help="Mount projects shared with the current user at mountpoint/PATH.")
+ mounts.add_argument('--mount-tmp',
+ type=str, metavar='PATH', action='append', default=[],
+ help="Create a new collection, mount it in read/write mode at mountpoint/PATH, and delete it when unmounting.")
parser.add_argument('--debug', action='store_true', help="""Debug mode""")
parser.add_argument('--logfile', help="""Write debug logs and errors to the specified file (default stderr).""")
parser.add_argument('--file-cache', type=int, help="File data cache size, in bytes (default 256MiB)", default=256*1024*1024)
parser.add_argument('--directory-cache', type=int, help="Directory data cache size, in bytes (default 128MiB)", default=128*1024*1024)
+ parser.add_argument('--read-only', action='store_false', help="Mount will be read only (default)", dest="enable_write", default=False)
+ parser.add_argument('--read-write', action='store_true', help="Mount will be read-write", dest="enable_write", default=False)
+
+ parser.add_argument('--crunchstat-interval', type=float, help="Write stats to stderr every N seconds (default disabled)", default=0)
+
parser.add_argument('--exec', type=str, nargs=argparse.REMAINDER,
dest="exec_args", metavar=('command', 'args', '...', '--'),
help="""Mount, run a command, then unmount and exit""")
arvados.logger.setLevel(logging.DEBUG)
logger.debug("arv-mount debugging enabled")
+ logger.info("enable write is %s", args.enable_write)
+
try:
+ api = ThreadSafeApiCache(apiconfig=arvados.config.settings(),
+ keep_params={"block_cache": arvados.keep.KeepBlockCache(args.file_cache)})
+
# Create the request handler
operations = Operations(os.getuid(),
os.getgid(),
+ api_client=api,
encoding=args.encoding,
- inode_cache=InodeCache(cap=args.directory_cache))
- api = ThreadSafeApiCache(apiconfig=arvados.config.settings(),
- keep_params={"block_cache": arvados.keep.KeepBlockCache(args.file_cache)})
+ inode_cache=InodeCache(cap=args.directory_cache),
+ enable_write=args.enable_write)
+
+ if args.crunchstat_interval:
+ statsthread = threading.Thread(target=statlogger, args=(args.crunchstat_interval, api.keep, operations))
+ statsthread.daemon = True
+ statsthread.start()
usr = api.users().current().execute(num_retries=args.retries)
now = time.time()
dir_class = None
dir_args = [llfuse.ROOT_INODE, operations.inodes, api, args.retries]
- if args.by_id:
+ mount_readme = False
+
+ if args.mode is not None and (
+ args.mount_by_id or
+ args.mount_by_pdh or
+ args.mount_by_tag or
+ args.mount_home or
+ args.mount_shared or
+ args.mount_tmp or
+ args.mount_collection):
+ sys.exit("Cannot combine '{}' mode with custom --mount-* options.".
+ format(args.mode))
+
+ if args.mode in ['by_id', 'by_pdh']:
# Set up the request handler with the 'magic directory' at the root
dir_class = MagicDirectory
- elif args.by_tag:
+ dir_args.append(args.mode == 'by_pdh')
+ elif args.mode == 'by_tag':
dir_class = TagsDirectory
- elif args.shared:
+ elif args.mode == 'shared':
dir_class = SharedDirectory
dir_args.append(usr)
- elif args.home:
+ elif args.mode == 'home':
dir_class = ProjectDirectory
dir_args.append(usr)
dir_args.append(True)
+ elif args.mode == 'all':
+ args.mount_by_id = ['by_id']
+ args.mount_by_tag = ['by_tag']
+ args.mount_home = ['home']
+ args.mount_shared = ['shared']
+ mount_readme = True
elif args.collection is not None:
# Set up the request handler with the collection at the root
dir_class = CollectionDirectory
e = operations.inodes.add_entry(Directory(llfuse.ROOT_INODE, operations.inodes))
dir_args[0] = e.inode
- e._entries['by_id'] = operations.inodes.add_entry(MagicDirectory(*dir_args))
- e._entries['by_tag'] = operations.inodes.add_entry(TagsDirectory(*dir_args))
-
- dir_args.append(usr)
- dir_args.append(True)
- e._entries['home'] = operations.inodes.add_entry(ProjectDirectory(*dir_args))
- e._entries['shared'] = operations.inodes.add_entry(SharedDirectory(*dir_args))
-
- text = '''
-Welcome to Arvados! This directory provides file system access to files and objects
-available on the Arvados installation located at '{}'
-using credentials for user '{}'.
+ def addMount(tld, name, ent):
+ if name in ['', '.', '..'] or '/' in name:
+ sys.exit("Mount point '{}' is not supported.".format(name))
+ tld._entries[name] = operations.inodes.add_entry(ent)
+
+ for name in args.mount_by_id:
+ addMount(e, name, MagicDirectory(*dir_args, pdh_only=False))
+ for name in args.mount_by_pdh:
+ addMount(e, name, MagicDirectory(*dir_args, pdh_only=True))
+ for name in args.mount_by_tag:
+ addMount(e, name, TagsDirectory(*dir_args))
+ for name in args.mount_home:
+ addMount(e, name, ProjectDirectory(*dir_args, project_object=usr, poll=True))
+ for name in args.mount_shared:
+ addMount(e, name, SharedDirectory(*dir_args, exclude=usr, poll=True))
+ for name in args.mount_tmp:
+ addMount(e, name, TmpCollectionDirectory(*dir_args))
+
+ if mount_readme:
+ text = '''
+Welcome to Arvados! This directory provides file system access to
+files and objects available on the Arvados installation located at
+'{}' using credentials for user '{}'.
From here, the following directories are available:
home/ The contents of your home project.
shared/ Projects shared with you.
'''.format(arvados.config.get('ARVADOS_API_HOST'), usr['email'])
-
- e._entries["README"] = operations.inodes.add_entry(StringFile(e.inode, text, now))
-
+ addMount(e, StringFile(e.inode, text, now))
except Exception:
logger.exception("arv-mount: exception during API setup")
llfuse.init(operations, args.mountpoint, opts)
# Subscribe to change events from API server
- operations.listen_for_events(api)
+ if args.mode != 'by_pdh':
+ operations.listen_for_events()
t = threading.Thread(None, lambda: llfuse.main())
t.start()
pass
finally:
subprocess.call(["fusermount", "-u", "-z", args.mountpoint])
+ operations.destroy()
exit(rc)
else:
llfuse.init(operations, args.mountpoint, opts)
# Subscribe to change events from API server
- operations.listen_for_events(api)
+ operations.listen_for_events()
llfuse.main()
except Exception as e:
logger.exception('arv-mount: exception during mount')
exit(getattr(e, 'errno', 1))
+ finally:
+ operations.destroy()
projects / arvados.git / blobdiff