import arvados.commands._util as arv_cmd
from arvados_fuse import *
+from arvados.safeapi import ThreadSafeApiCache
+import arvados.keep
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(
help="""Mount subdirectories listed by tag.""")
mount_mode.add_argument('--by-id', action='store_true',
help="""Mount subdirectories listed by portable data hash or uuid.""")
+ mount_mode.add_argument('--by-pdh', action='store_true',
+ help="""Mount subdirectories listed by portable data hash.""")
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.""")
parser.add_argument('--logfile', help="""Write debug logs and errors to the specified file (default stderr).""")
parser.add_argument('--foreground', action='store_true', help="""Run in foreground (default is to daemonize unless --exec specified)""", default=False)
parser.add_argument('--encoding', type=str, help="Character encoding to use for filesystem, default is utf-8 (see Python codec registry for list of available encodings)", default="utf-8")
+
+ 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:
# Create the request handler
- operations = Operations(os.getuid(), os.getgid(), args.encoding)
- api = SafeApi(arvados.config)
+ operations = Operations(os.getuid(),
+ os.getgid(),
+ encoding=args.encoding,
+ inode_cache=InodeCache(cap=args.directory_cache),
+ enable_write=args.enable_write)
+ api = ThreadSafeApiCache(apiconfig=arvados.config.settings(),
+ keep_params={"block_cache": arvados.keep.KeepBlockCache(args.file_cache)})
+
+ 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:
+ if args.by_id or args.by_pdh:
# Set up the request handler with the 'magic directory' at the root
dir_class = MagicDirectory
+ dir_args.append(args.by_pdh)
elif args.by_tag:
dir_class = TagsDirectory
elif args.shared:
elif args.home:
dir_class = ProjectDirectory
dir_args.append(usr)
+ dir_args.append(True)
elif args.collection is not None:
# Set up the request handler with the collection at the root
dir_class = CollectionDirectory
if dir_class is not None:
operations.inodes.add_entry(dir_class(*dir_args))
else:
- e = operations.inodes.add_entry(Directory(llfuse.ROOT_INODE))
+ 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))
opts = [optname for optname in ['allow_other', 'debug']
if getattr(args, optname)]
+ # Increase default read/write size from 4KiB to 128KiB
+ opts += ["big_writes", "max_read=131072"]
+
if args.exec_args:
# Initialize the fuse connection
llfuse.init(operations, args.mountpoint, opts)
+ # Subscribe to change events from API server
+ if not args.by_pdh:
+ operations.listen_for_events(api)
+
t = threading.Thread(None, lambda: llfuse.main())
t.start()
pass
finally:
subprocess.call(["fusermount", "-u", "-z", args.mountpoint])
+ operations.destroy()
exit(rc)
else:
try:
llfuse.init(operations, args.mountpoint, opts)
+
+ # Subscribe to change events from API server
+ operations.listen_for_events(api)
+
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