def layoutget_return(sess, fh, open_stateid, allowed_errors=NFS4_OK,
layout_iomode=LAYOUTIOMODE4_RW, layout_error=None,
layout_error_op=OP_WRITE):
"""
Perform LAYOUTGET and LAYOUTRETURN
"""
# Get layout
ops = [op.putfh(fh),
op.layoutget(False, LAYOUT4_FLEX_FILES, layout_iomode,
0, NFS4_MAXFILELEN, 4196, open_stateid, 0xffff)]
res = sess.compound(ops)
check(res, allowed_errors)
if res.status != NFS4_OK:
return [res] # We can't return the layout without a stateid!
layout_stateid = res.resarray[-1].logr_stateid
# Return layout
if not layout_error: # Return regular layout
ops = [op.putfh(fh),
op.layoutreturn(False, LAYOUT4_FLEX_FILES, LAYOUTIOMODE4_ANY,
layoutreturn4(LAYOUTRETURN4_FILE,
layoutreturn_file4(0, NFS4_MAXFILELEN,
layout_stateid, empty_p.get_buffer())))]
else: # Return layout with error
# Get device id
locb = res.resarray[-1].logr_layout[0].lo_content.loc_body
p = FlexUnpacker(locb)
layout = p.unpack_ff_layout4()
p.done()
deviceid = layout.ffl_mirrors[0].ffm_data_servers[0].ffds_deviceid
deverr = device_error4(deviceid, layout_error, layout_error_op)
ffioerr = ff_ioerr4(0, NFS4_MAXFILELEN, layout_stateid, [deverr])
fflr = ff_layoutreturn4([ffioerr], [])
p = FlexPacker()
p.pack_ff_layoutreturn4(fflr)
ops = [op.putfh(fh),
op.layoutreturn(False, LAYOUT4_FLEX_FILES, LAYOUTIOMODE4_ANY,
layoutreturn4(LAYOUTRETURN4_FILE,
layoutreturn_file4(0, NFS4_MAXFILELEN,
layout_stateid,
p.get_buffer())))]
res2 = sess.compound(ops)
check(res2)
return [res, res2]
def _LayoutStats(t, env, stats):
'''Loop over the provided layoutstats, sending them on in time
'''
sess = env.c1.new_pnfs_client_session(env.testname(t))
# Create the file
res = create_file(sess, env.testname(t))
check(res)
fh = res.resarray[-1].object
open_stateid = res.resarray[-2].stateid
lo_stateid = open_stateid
ops = [
op.putfh(fh),
op.layoutget(False, LAYOUT4_FLEX_FILES, LAYOUTIOMODE4_RW, 0,
0xffffffffffffffff, 8192, lo_stateid, 0xffff)
]
res = sess.compound(ops)
check(res)
lo_stateid = res.resarray[-1].logr_stateid
check_seqid(lo_stateid, 1)
layout = res.resarray[-1].logr_layout[-1]
p = FlexUnpacker(layout.loc_body)
opaque = p.unpack_ff_layout4()
p.done()
stats_hint = opaque.ffl_stats_collect_hint
# Assume one mirror/storage device
ds = opaque.ffl_mirrors[-1].ffm_data_servers[-1]
deviceid = ds.ffds_deviceid
ops = [
op.putfh(fh),
op.getdeviceinfo(deviceid, LAYOUT4_FLEX_FILES, 0xffffffff, 0)
]
res = sess.compound(ops)
check(res)
gda = res.resarray[-1].gdir_device_addr
p = FlexUnpacker(gda.da_addr_body)
da = p.unpack_ff_device_addr4()
p.done()
rd_io = io_info4()
wr_io = io_info4()
rd_lat = ff_io_latency4()
wr_lat = ff_io_latency4()
for s in stats:
dur = get_nfstime(s[1])
# Did not capture these in the gathered traces
offset = 0
file_length = 0xffffffffffffffff
rd_io.ii_count = 0
rd_io.ii_bytes = 0
wr_io.ii_count = 0
wr_io.ii_bytes = 0
rd_lat.ffil_ops_requested = s[5]
rd_lat.ffil_bytes_requested = s[4]
rd_lat.ffil_ops_completed = s[6]
rd_lat.ffil_bytes_completed = s[2]
rd_lat.ffil_bytes_not_delivered = s[3]
rd_lat.ffil_total_busy_time = get_nfstime(s[7])
rd_lat.ffil_aggregate_completion_time = get_nfstime(s[8])
wr_lat.ffil_ops_requested = s[12]
wr_lat.ffil_bytes_requested = s[11]
wr_lat.ffil_ops_completed = s[13]
wr_lat.ffil_bytes_completed = s[9]
wr_lat.ffil_bytes_not_delivered = s[10]
wr_lat.ffil_total_busy_time = get_nfstime(s[14])
wr_lat.ffil_aggregate_completion_time = get_nfstime(s[15])
sleeper = s[0]
env.sleep(sleeper)
fflu = ff_layoutupdate4(da.ffda_netaddrs[-1], ds.ffds_fh_vers[-1],
rd_lat, wr_lat, dur, True)
p = FlexPacker()
p.pack_ff_layoutupdate4(fflu)
lu4 = layoutupdate4(LAYOUT4_FLEX_FILES, p.get_buffer())
ops = [
op.putfh(fh),
op.layoutstats(offset, file_length, lo_stateid, rd_io, wr_io,
deviceid, lu4)
]
res = sess.compound(ops)
check(res)
ops = [
op.putfh(fh),
op.layoutreturn(
False, LAYOUT4_FLEX_FILES, LAYOUTIOMODE4_ANY,
layoutreturn4(
LAYOUTRETURN4_FILE,
layoutreturn_file4(0, 0xffffffffffffffff, lo_stateid, "")))
]
res = sess.compound(ops)
check(res)
res = close_file(sess, fh, stateid=open_stateid)
check(res)
def testFlexLayoutStatsSmall(t, env):
"""Open 20 "small" files and simulate LAYOUTSTATS for them
1) OPEN, LAYOUTGET
2) GETDEVINFO
3) LAYOUTRETURN, CLOSE
FLAGS: flex layoutstats
CODE: FFLS1
"""
lats = [
93089, 107683, 112340, 113195, 130412, 138390, 140427, 158824, 193078,
201879, 391634, 404757, 2201181, 2232614, 2280089, 2296343, 2341763,
2392984, 3064546, 3070314
]
durs = [
3387666, 3439506, 3737081, 4448315, 4380523, 4419273, 4419746, 5903420,
5932432, 5932938, 7573082, 11085497, 11125274, 11126513, 13720303,
15990926, 16020425, 16020948, 20181628, 20213871
]
if len(lats) != len(durs):
fail("Lats and durs not same")
sess = env.c1.new_pnfs_client_session(env.testname(t))
for i in range(len(lats)):
open_op = open_create_file_op(sess,
env.testname(t) + str(i),
open_create=OPEN4_CREATE)
res = sess.compound(open_op + [
op.layoutget(False, LAYOUT4_FLEX_FILES, LAYOUTIOMODE4_RW, 0,
0xffffffffffffffff, 4196, current_stateid, 0xffff)
])
check(res, NFS4_OK)
lo_stateid = res.resarray[-1].logr_stateid
fh = res.resarray[-2].object
open_stateid = res.resarray[-3].stateid
check_seqid(lo_stateid, 1)
layout = res.resarray[-1].logr_layout[-1]
p = FlexUnpacker(layout.loc_body)
opaque = p.unpack_ff_layout4()
p.done()
# Assume one mirror/storage device
ds = opaque.ffl_mirrors[-1].ffm_data_servers[-1]
stats_hint = opaque.ffl_stats_collect_hint
deviceid = ds.ffds_deviceid
ops = [
op.putfh(fh),
op.getdeviceinfo(deviceid, LAYOUT4_FLEX_FILES, 0xffffffff, 0)
]
res = sess.compound(ops)
check(res)
gda = res.resarray[-1].gdir_device_addr
p = FlexUnpacker(gda.da_addr_body)
da = p.unpack_ff_device_addr4()
p.done()
rd_io = io_info4(0, 0)
wr_io = io_info4(1, 16384)
rd_lat = ff_io_latency4(0, 0, 0, 0, 0, nfstime4(0, 0), nfstime4(0, 0))
wr_lat = ff_io_latency4(1, 16384, 1, 16384, 0, nfstime4(0, lats[i]),
nfstime4(0, lats[i]))
offset = 0
file_length = 16384
dur = durs[i]
fflu = ff_layoutupdate4(da.ffda_netaddrs[-1], ds.ffds_fh_vers[-1],
rd_lat, wr_lat, nfstime4(0, dur), True)
ffio = ff_iostats4(offset, file_length, lo_stateid, rd_io, wr_io,
deviceid, fflu)
fflr = ff_layoutreturn4([], [ffio])
p = FlexPacker()
p.pack_ff_layoutreturn4(fflr)
ops = [
op.putfh(fh),
op.layoutreturn(
False, LAYOUT4_FLEX_FILES, LAYOUTIOMODE4_ANY,
layoutreturn4(
LAYOUTRETURN4_FILE,
layoutreturn_file4(0, 0xffffffffffffffff, lo_stateid,
p.get_buffer()))),
op.close(0, open_stateid)
]
res = sess.compound(ops)
check(res)
from xdrdef.nfs4_const import *
from xdrdef.nfs4_type import *
from xdrdef.nfs4_pack import *
import nfs_ops
op = nfs_ops.NFS4ops()
from .environment import check, fail, create_file, close_file, open_create_file_op
from xdrdef.nfs4_pack import NFS4Packer as FlexPacker, \
NFS4Unpacker as FlexUnpacker
from nfs4lib import FancyNFS4Packer, get_nfstime
current_stateid = stateid4(1, b'\0' * 12)
empty_fflr = ff_layoutreturn4([], [])
empty_p = FlexPacker()
empty_p.pack_ff_layoutreturn4(empty_fflr)
def check_seqid(stateid, seqid):
if stateid.seqid != seqid:
fail("Expected stateid.seqid==%i, got %i" % (seqid, stateid.seqid))
def testStateid1(t, env):
"""Check for proper sequence handling in layout stateids.
FLAGS: flex
CODE: FFST1
"""
sess = env.c1.new_pnfs_client_session(env.testname(t))
# Create the file
res = create_file(sess, env.testname(t))
check(res)