tahoe-lafs/src/allmydata/test/test_storage_web.py

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2020-08-18 17:03:36 +00:00
"""
Tests for twisted.storage that uses Web APIs.
"""
from __future__ import absolute_import
from future.utils import PY2, PY3
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import time
import os.path
import re
import json
from unittest import skipIf
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from twisted.trial import unittest
from twisted.internet import defer
from twisted.application import service
from twisted.web.template import flattenString
# We need to use `nevow.inevow.IRequest` for now for compatibility
# with the code in web/common.py. Once nevow bits are gone from
# web/common.py, we can use `twisted.web.iweb.IRequest` here.
if PY2:
from nevow.inevow import IRequest
else:
from twisted.web.iweb import IRequest
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from twisted.web.server import Request
from twisted.web.test.requesthelper import DummyChannel
from zope.interface import implementer
from foolscap.api import fireEventually
from allmydata.util import fileutil, hashutil, base32, pollmixin
from allmydata.storage.common import storage_index_to_dir, \
UnknownMutableContainerVersionError, UnknownImmutableContainerVersionError
from allmydata.storage.server import StorageServer
from allmydata.storage.crawler import BucketCountingCrawler
from allmydata.storage.expirer import LeaseCheckingCrawler
from allmydata.web.storage import (
StorageStatus,
StorageStatusElement,
remove_prefix
)
from .common_py3 import FakeCanary
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def remove_tags(s):
s = re.sub(r'<[^>]*>', ' ', s)
s = re.sub(r'\s+', ' ', s)
return s
def renderSynchronously(ss):
"""
Return fully rendered HTML document.
:param _StorageStatus ss: a StorageStatus instance.
"""
return unittest.TestCase().successResultOf(renderDeferred(ss))
def renderDeferred(ss):
"""
Return a `Deferred` HTML renderer.
:param _StorageStatus ss: a StorageStatus instance.
"""
elem = StorageStatusElement(ss._storage, ss._nickname)
return flattenString(None, elem)
def renderJSON(resource):
"""Render a JSON from the given resource."""
@implementer(IRequest)
class JSONRequest(Request):
"""
A Request with t=json argument added to it. This is useful to
invoke a Resouce.render_JSON() method.
"""
def __init__(self):
Request.__init__(self, DummyChannel())
self.args = {"t": ["json"]}
self.fields = {}
return resource.render(JSONRequest())
class MyBucketCountingCrawler(BucketCountingCrawler):
def finished_prefix(self, cycle, prefix):
BucketCountingCrawler.finished_prefix(self, cycle, prefix)
if self.hook_ds:
d = self.hook_ds.pop(0)
d.callback(None)
class MyStorageServer(StorageServer):
def add_bucket_counter(self):
statefile = os.path.join(self.storedir, "bucket_counter.state")
self.bucket_counter = MyBucketCountingCrawler(self, statefile)
self.bucket_counter.setServiceParent(self)
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class BucketCounter(unittest.TestCase, pollmixin.PollMixin):
@skipIf(PY3, "Not ported yet.")
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def setUp(self):
self.s = service.MultiService()
self.s.startService()
def tearDown(self):
return self.s.stopService()
def test_bucket_counter(self):
basedir = "storage/BucketCounter/bucket_counter"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20)
# to make sure we capture the bucket-counting-crawler in the middle
# of a cycle, we reach in and reduce its maximum slice time to 0. We
# also make it start sooner than usual.
ss.bucket_counter.slow_start = 0
orig_cpu_slice = ss.bucket_counter.cpu_slice
ss.bucket_counter.cpu_slice = 0
ss.setServiceParent(self.s)
w = StorageStatus(ss)
# this sample is before the crawler has started doing anything
html = renderSynchronously(w)
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Accepting new shares: Yes", s)
self.failUnlessIn("Reserved space: - 0 B (0)", s)
self.failUnlessIn("Total buckets: Not computed yet", s)
self.failUnlessIn("Next crawl in", s)
# give the bucket-counting-crawler one tick to get started. The
# cpu_slice=0 will force it to yield right after it processes the
# first prefix
d = fireEventually()
def _check(ignored):
# are we really right after the first prefix?
state = ss.bucket_counter.get_state()
if state["last-complete-prefix"] is None:
d2 = fireEventually()
d2.addCallback(_check)
return d2
self.failUnlessEqual(state["last-complete-prefix"],
ss.bucket_counter.prefixes[0])
ss.bucket_counter.cpu_slice = 100.0 # finish as fast as possible
html = renderSynchronously(w)
s = remove_tags(html)
self.failUnlessIn(" Current crawl ", s)
self.failUnlessIn(" (next work in ", s)
d.addCallback(_check)
# now give it enough time to complete a full cycle
def _watch():
return not ss.bucket_counter.get_progress()["cycle-in-progress"]
d.addCallback(lambda ignored: self.poll(_watch))
def _check2(ignored):
ss.bucket_counter.cpu_slice = orig_cpu_slice
html = renderSynchronously(w)
s = remove_tags(html)
self.failUnlessIn("Total buckets: 0 (the number of", s)
self.failUnless("Next crawl in 59 minutes" in s or "Next crawl in 60 minutes" in s, s)
d.addCallback(_check2)
return d
def test_bucket_counter_cleanup(self):
basedir = "storage/BucketCounter/bucket_counter_cleanup"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20)
# to make sure we capture the bucket-counting-crawler in the middle
# of a cycle, we reach in and reduce its maximum slice time to 0.
ss.bucket_counter.slow_start = 0
orig_cpu_slice = ss.bucket_counter.cpu_slice
ss.bucket_counter.cpu_slice = 0
ss.setServiceParent(self.s)
d = fireEventually()
def _after_first_prefix(ignored):
state = ss.bucket_counter.state
if state["last-complete-prefix"] is None:
d2 = fireEventually()
d2.addCallback(_after_first_prefix)
return d2
ss.bucket_counter.cpu_slice = 100.0 # finish as fast as possible
# now sneak in and mess with its state, to make sure it cleans up
# properly at the end of the cycle
self.failUnlessEqual(state["last-complete-prefix"],
ss.bucket_counter.prefixes[0])
state["bucket-counts"][-12] = {}
state["storage-index-samples"]["bogusprefix!"] = (-12, [])
ss.bucket_counter.save_state()
d.addCallback(_after_first_prefix)
# now give it enough time to complete a cycle
def _watch():
return not ss.bucket_counter.get_progress()["cycle-in-progress"]
d.addCallback(lambda ignored: self.poll(_watch))
def _check2(ignored):
ss.bucket_counter.cpu_slice = orig_cpu_slice
s = ss.bucket_counter.get_state()
self.failIf(-12 in s["bucket-counts"], s["bucket-counts"].keys())
self.failIf("bogusprefix!" in s["storage-index-samples"],
s["storage-index-samples"].keys())
d.addCallback(_check2)
return d
def test_bucket_counter_eta(self):
basedir = "storage/BucketCounter/bucket_counter_eta"
fileutil.make_dirs(basedir)
ss = MyStorageServer(basedir, "\x00" * 20)
ss.bucket_counter.slow_start = 0
# these will be fired inside finished_prefix()
hooks = ss.bucket_counter.hook_ds = [defer.Deferred() for i in range(3)]
w = StorageStatus(ss)
d = defer.Deferred()
def _check_1(ignored):
# no ETA is available yet
html = renderSynchronously(w)
s = remove_tags(html)
self.failUnlessIn("complete (next work", s)
def _check_2(ignored):
# one prefix has finished, so an ETA based upon that elapsed time
# should be available.
html = renderSynchronously(w)
s = remove_tags(html)
self.failUnlessIn("complete (ETA ", s)
def _check_3(ignored):
# two prefixes have finished
html = renderSynchronously(w)
s = remove_tags(html)
self.failUnlessIn("complete (ETA ", s)
d.callback("done")
hooks[0].addCallback(_check_1).addErrback(d.errback)
hooks[1].addCallback(_check_2).addErrback(d.errback)
hooks[2].addCallback(_check_3).addErrback(d.errback)
ss.setServiceParent(self.s)
return d
class InstrumentedLeaseCheckingCrawler(LeaseCheckingCrawler):
stop_after_first_bucket = False
def process_bucket(self, *args, **kwargs):
LeaseCheckingCrawler.process_bucket(self, *args, **kwargs)
if self.stop_after_first_bucket:
self.stop_after_first_bucket = False
self.cpu_slice = -1.0
def yielding(self, sleep_time):
if not self.stop_after_first_bucket:
self.cpu_slice = 500
class BrokenStatResults(object):
pass
class No_ST_BLOCKS_LeaseCheckingCrawler(LeaseCheckingCrawler):
def stat(self, fn):
s = os.stat(fn)
bsr = BrokenStatResults()
for attrname in dir(s):
if attrname.startswith("_"):
continue
if attrname == "st_blocks":
continue
setattr(bsr, attrname, getattr(s, attrname))
return bsr
class InstrumentedStorageServer(StorageServer):
LeaseCheckerClass = InstrumentedLeaseCheckingCrawler
class No_ST_BLOCKS_StorageServer(StorageServer):
LeaseCheckerClass = No_ST_BLOCKS_LeaseCheckingCrawler
class LeaseCrawler(unittest.TestCase, pollmixin.PollMixin):
def setUp(self):
self.s = service.MultiService()
self.s.startService()
def tearDown(self):
return self.s.stopService()
def make_shares(self, ss):
def make(si):
return (si, hashutil.tagged_hash("renew", si),
hashutil.tagged_hash("cancel", si))
def make_mutable(si):
return (si, hashutil.tagged_hash("renew", si),
hashutil.tagged_hash("cancel", si),
hashutil.tagged_hash("write-enabler", si))
def make_extra_lease(si, num):
return (hashutil.tagged_hash("renew-%d" % num, si),
hashutil.tagged_hash("cancel-%d" % num, si))
immutable_si_0, rs0, cs0 = make("\x00" * 16)
immutable_si_1, rs1, cs1 = make("\x01" * 16)
rs1a, cs1a = make_extra_lease(immutable_si_1, 1)
mutable_si_2, rs2, cs2, we2 = make_mutable("\x02" * 16)
mutable_si_3, rs3, cs3, we3 = make_mutable("\x03" * 16)
rs3a, cs3a = make_extra_lease(mutable_si_3, 1)
sharenums = [0]
canary = FakeCanary()
# note: 'tahoe debug dump-share' will not handle this file, since the
# inner contents are not a valid CHK share
data = "\xff" * 1000
a,w = ss.remote_allocate_buckets(immutable_si_0, rs0, cs0, sharenums,
1000, canary)
w[0].remote_write(0, data)
w[0].remote_close()
a,w = ss.remote_allocate_buckets(immutable_si_1, rs1, cs1, sharenums,
1000, canary)
w[0].remote_write(0, data)
w[0].remote_close()
ss.remote_add_lease(immutable_si_1, rs1a, cs1a)
writev = ss.remote_slot_testv_and_readv_and_writev
writev(mutable_si_2, (we2, rs2, cs2),
{0: ([], [(0,data)], len(data))}, [])
writev(mutable_si_3, (we3, rs3, cs3),
{0: ([], [(0,data)], len(data))}, [])
ss.remote_add_lease(mutable_si_3, rs3a, cs3a)
self.sis = [immutable_si_0, immutable_si_1, mutable_si_2, mutable_si_3]
self.renew_secrets = [rs0, rs1, rs1a, rs2, rs3, rs3a]
self.cancel_secrets = [cs0, cs1, cs1a, cs2, cs3, cs3a]
def test_basic(self):
basedir = "storage/LeaseCrawler/basic"
fileutil.make_dirs(basedir)
ss = InstrumentedStorageServer(basedir, "\x00" * 20)
# make it start sooner than usual.
lc = ss.lease_checker
lc.slow_start = 0
lc.cpu_slice = 500
lc.stop_after_first_bucket = True
webstatus = StorageStatus(ss)
# create a few shares, with some leases on them
self.make_shares(ss)
[immutable_si_0, immutable_si_1, mutable_si_2, mutable_si_3] = self.sis
# add a non-sharefile to exercise another code path
fn = os.path.join(ss.sharedir,
storage_index_to_dir(immutable_si_0),
"not-a-share")
f = open(fn, "wb")
f.write("I am not a share.\n")
f.close()
# this is before the crawl has started, so we're not in a cycle yet
initial_state = lc.get_state()
self.failIf(lc.get_progress()["cycle-in-progress"])
self.failIfIn("cycle-to-date", initial_state)
self.failIfIn("estimated-remaining-cycle", initial_state)
self.failIfIn("estimated-current-cycle", initial_state)
self.failUnlessIn("history", initial_state)
self.failUnlessEqual(initial_state["history"], {})
ss.setServiceParent(self.s)
DAY = 24*60*60
d = fireEventually()
# now examine the state right after the first bucket has been
# processed.
def _after_first_bucket(ignored):
initial_state = lc.get_state()
if "cycle-to-date" not in initial_state:
d2 = fireEventually()
d2.addCallback(_after_first_bucket)
return d2
self.failUnlessIn("cycle-to-date", initial_state)
self.failUnlessIn("estimated-remaining-cycle", initial_state)
self.failUnlessIn("estimated-current-cycle", initial_state)
self.failUnlessIn("history", initial_state)
self.failUnlessEqual(initial_state["history"], {})
so_far = initial_state["cycle-to-date"]
self.failUnlessEqual(so_far["expiration-enabled"], False)
self.failUnlessIn("configured-expiration-mode", so_far)
self.failUnlessIn("lease-age-histogram", so_far)
lah = so_far["lease-age-histogram"]
self.failUnlessEqual(type(lah), list)
self.failUnlessEqual(len(lah), 1)
self.failUnlessEqual(lah, [ (0.0, DAY, 1) ] )
self.failUnlessEqual(so_far["leases-per-share-histogram"], {1: 1})
self.failUnlessEqual(so_far["corrupt-shares"], [])
sr1 = so_far["space-recovered"]
self.failUnlessEqual(sr1["examined-buckets"], 1)
self.failUnlessEqual(sr1["examined-shares"], 1)
self.failUnlessEqual(sr1["actual-shares"], 0)
self.failUnlessEqual(sr1["configured-diskbytes"], 0)
self.failUnlessEqual(sr1["original-sharebytes"], 0)
left = initial_state["estimated-remaining-cycle"]
sr2 = left["space-recovered"]
self.failUnless(sr2["examined-buckets"] > 0, sr2["examined-buckets"])
self.failUnless(sr2["examined-shares"] > 0, sr2["examined-shares"])
self.failIfEqual(sr2["actual-shares"], None)
self.failIfEqual(sr2["configured-diskbytes"], None)
self.failIfEqual(sr2["original-sharebytes"], None)
d.addCallback(_after_first_bucket)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html_in_cycle(html):
s = remove_tags(html)
self.failUnlessIn("So far, this cycle has examined "
"1 shares in 1 buckets (0 mutable / 1 immutable) ", s)
self.failUnlessIn("and has recovered: "
"0 shares, 0 buckets (0 mutable / 0 immutable), "
"0 B (0 B / 0 B)", s)
self.failUnlessIn("If expiration were enabled, "
"we would have recovered: "
"0 shares, 0 buckets (0 mutable / 0 immutable),"
" 0 B (0 B / 0 B) by now", s)
self.failUnlessIn("and the remainder of this cycle "
"would probably recover: "
"0 shares, 0 buckets (0 mutable / 0 immutable),"
" 0 B (0 B / 0 B)", s)
self.failUnlessIn("and the whole cycle would probably recover: "
"0 shares, 0 buckets (0 mutable / 0 immutable),"
" 0 B (0 B / 0 B)", s)
self.failUnlessIn("if we were strictly using each lease's default "
"31-day lease lifetime", s)
self.failUnlessIn("this cycle would be expected to recover: ", s)
d.addCallback(_check_html_in_cycle)
# wait for the crawler to finish the first cycle. Nothing should have
# been removed.
def _wait():
return bool(lc.get_state()["last-cycle-finished"] is not None)
d.addCallback(lambda ign: self.poll(_wait))
def _after_first_cycle(ignored):
s = lc.get_state()
self.failIf("cycle-to-date" in s)
self.failIf("estimated-remaining-cycle" in s)
self.failIf("estimated-current-cycle" in s)
last = s["history"][0]
self.failUnlessIn("cycle-start-finish-times", last)
self.failUnlessEqual(type(last["cycle-start-finish-times"]), tuple)
self.failUnlessEqual(last["expiration-enabled"], False)
self.failUnlessIn("configured-expiration-mode", last)
self.failUnlessIn("lease-age-histogram", last)
lah = last["lease-age-histogram"]
self.failUnlessEqual(type(lah), list)
self.failUnlessEqual(len(lah), 1)
self.failUnlessEqual(lah, [ (0.0, DAY, 6) ] )
self.failUnlessEqual(last["leases-per-share-histogram"], {1: 2, 2: 2})
self.failUnlessEqual(last["corrupt-shares"], [])
rec = last["space-recovered"]
self.failUnlessEqual(rec["examined-buckets"], 4)
self.failUnlessEqual(rec["examined-shares"], 4)
self.failUnlessEqual(rec["actual-buckets"], 0)
self.failUnlessEqual(rec["original-buckets"], 0)
self.failUnlessEqual(rec["configured-buckets"], 0)
self.failUnlessEqual(rec["actual-shares"], 0)
self.failUnlessEqual(rec["original-shares"], 0)
self.failUnlessEqual(rec["configured-shares"], 0)
self.failUnlessEqual(rec["actual-diskbytes"], 0)
self.failUnlessEqual(rec["original-diskbytes"], 0)
self.failUnlessEqual(rec["configured-diskbytes"], 0)
self.failUnlessEqual(rec["actual-sharebytes"], 0)
self.failUnlessEqual(rec["original-sharebytes"], 0)
self.failUnlessEqual(rec["configured-sharebytes"], 0)
def _get_sharefile(si):
return list(ss._iter_share_files(si))[0]
def count_leases(si):
return len(list(_get_sharefile(si).get_leases()))
self.failUnlessEqual(count_leases(immutable_si_0), 1)
self.failUnlessEqual(count_leases(immutable_si_1), 2)
self.failUnlessEqual(count_leases(mutable_si_2), 1)
self.failUnlessEqual(count_leases(mutable_si_3), 2)
d.addCallback(_after_first_cycle)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html(html):
s = remove_tags(html)
self.failUnlessIn("recovered: 0 shares, 0 buckets "
"(0 mutable / 0 immutable), 0 B (0 B / 0 B) ", s)
self.failUnlessIn("and saw a total of 4 shares, 4 buckets "
"(2 mutable / 2 immutable),", s)
self.failUnlessIn("but expiration was not enabled", s)
d.addCallback(_check_html)
d.addCallback(lambda ign: renderJSON(webstatus))
def _check_json(raw):
data = json.loads(raw)
self.failUnlessIn("lease-checker", data)
self.failUnlessIn("lease-checker-progress", data)
d.addCallback(_check_json)
return d
def backdate_lease(self, sf, renew_secret, new_expire_time):
# ShareFile.renew_lease ignores attempts to back-date a lease (i.e.
# "renew" a lease with a new_expire_time that is older than what the
# current lease has), so we have to reach inside it.
for i,lease in enumerate(sf.get_leases()):
if lease.renew_secret == renew_secret:
lease.expiration_time = new_expire_time
f = open(sf.home, 'rb+')
sf._write_lease_record(f, i, lease)
f.close()
return
raise IndexError("unable to renew non-existent lease")
def test_expire_age(self):
basedir = "storage/LeaseCrawler/expire_age"
fileutil.make_dirs(basedir)
# setting expiration_time to 2000 means that any lease which is more
# than 2000s old will be expired.
ss = InstrumentedStorageServer(basedir, "\x00" * 20,
expiration_enabled=True,
expiration_mode="age",
expiration_override_lease_duration=2000)
# make it start sooner than usual.
lc = ss.lease_checker
lc.slow_start = 0
lc.stop_after_first_bucket = True
webstatus = StorageStatus(ss)
# create a few shares, with some leases on them
self.make_shares(ss)
[immutable_si_0, immutable_si_1, mutable_si_2, mutable_si_3] = self.sis
def count_shares(si):
return len(list(ss._iter_share_files(si)))
def _get_sharefile(si):
return list(ss._iter_share_files(si))[0]
def count_leases(si):
return len(list(_get_sharefile(si).get_leases()))
self.failUnlessEqual(count_shares(immutable_si_0), 1)
self.failUnlessEqual(count_leases(immutable_si_0), 1)
self.failUnlessEqual(count_shares(immutable_si_1), 1)
self.failUnlessEqual(count_leases(immutable_si_1), 2)
self.failUnlessEqual(count_shares(mutable_si_2), 1)
self.failUnlessEqual(count_leases(mutable_si_2), 1)
self.failUnlessEqual(count_shares(mutable_si_3), 1)
self.failUnlessEqual(count_leases(mutable_si_3), 2)
# artificially crank back the expiration time on the first lease of
# each share, to make it look like it expired already (age=1000s).
# Some shares have an extra lease which is set to expire at the
# default time in 31 days from now (age=31days). We then run the
# crawler, which will expire the first lease, making some shares get
# deleted and others stay alive (with one remaining lease)
now = time.time()
sf0 = _get_sharefile(immutable_si_0)
self.backdate_lease(sf0, self.renew_secrets[0], now - 1000)
sf0_size = os.stat(sf0.home).st_size
# immutable_si_1 gets an extra lease
sf1 = _get_sharefile(immutable_si_1)
self.backdate_lease(sf1, self.renew_secrets[1], now - 1000)
sf2 = _get_sharefile(mutable_si_2)
self.backdate_lease(sf2, self.renew_secrets[3], now - 1000)
sf2_size = os.stat(sf2.home).st_size
# mutable_si_3 gets an extra lease
sf3 = _get_sharefile(mutable_si_3)
self.backdate_lease(sf3, self.renew_secrets[4], now - 1000)
ss.setServiceParent(self.s)
d = fireEventually()
# examine the state right after the first bucket has been processed
def _after_first_bucket(ignored):
p = lc.get_progress()
if not p["cycle-in-progress"]:
d2 = fireEventually()
d2.addCallback(_after_first_bucket)
return d2
d.addCallback(_after_first_bucket)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html_in_cycle(html):
s = remove_tags(html)
# the first bucket encountered gets deleted, and its prefix
# happens to be about 1/5th of the way through the ring, so the
# predictor thinks we'll have 5 shares and that we'll delete them
# all. This part of the test depends upon the SIs landing right
# where they do now.
self.failUnlessIn("The remainder of this cycle is expected to "
"recover: 4 shares, 4 buckets", s)
self.failUnlessIn("The whole cycle is expected to examine "
"5 shares in 5 buckets and to recover: "
"5 shares, 5 buckets", s)
d.addCallback(_check_html_in_cycle)
# wait for the crawler to finish the first cycle. Two shares should
# have been removed
def _wait():
return bool(lc.get_state()["last-cycle-finished"] is not None)
d.addCallback(lambda ign: self.poll(_wait))
def _after_first_cycle(ignored):
self.failUnlessEqual(count_shares(immutable_si_0), 0)
self.failUnlessEqual(count_shares(immutable_si_1), 1)
self.failUnlessEqual(count_leases(immutable_si_1), 1)
self.failUnlessEqual(count_shares(mutable_si_2), 0)
self.failUnlessEqual(count_shares(mutable_si_3), 1)
self.failUnlessEqual(count_leases(mutable_si_3), 1)
s = lc.get_state()
last = s["history"][0]
self.failUnlessEqual(last["expiration-enabled"], True)
self.failUnlessEqual(last["configured-expiration-mode"],
("age", 2000, None, ("mutable", "immutable")))
self.failUnlessEqual(last["leases-per-share-histogram"], {1: 2, 2: 2})
rec = last["space-recovered"]
self.failUnlessEqual(rec["examined-buckets"], 4)
self.failUnlessEqual(rec["examined-shares"], 4)
self.failUnlessEqual(rec["actual-buckets"], 2)
self.failUnlessEqual(rec["original-buckets"], 2)
self.failUnlessEqual(rec["configured-buckets"], 2)
self.failUnlessEqual(rec["actual-shares"], 2)
self.failUnlessEqual(rec["original-shares"], 2)
self.failUnlessEqual(rec["configured-shares"], 2)
size = sf0_size + sf2_size
self.failUnlessEqual(rec["actual-sharebytes"], size)
self.failUnlessEqual(rec["original-sharebytes"], size)
self.failUnlessEqual(rec["configured-sharebytes"], size)
# different platforms have different notions of "blocks used by
# this file", so merely assert that it's a number
self.failUnless(rec["actual-diskbytes"] >= 0,
rec["actual-diskbytes"])
self.failUnless(rec["original-diskbytes"] >= 0,
rec["original-diskbytes"])
self.failUnless(rec["configured-diskbytes"] >= 0,
rec["configured-diskbytes"])
d.addCallback(_after_first_cycle)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html(html):
s = remove_tags(html)
self.failUnlessIn("Expiration Enabled: expired leases will be removed", s)
self.failUnlessIn("Leases created or last renewed more than 33 minutes ago will be considered expired.", s)
self.failUnlessIn(" recovered: 2 shares, 2 buckets (1 mutable / 1 immutable), ", s)
d.addCallback(_check_html)
return d
def test_expire_cutoff_date(self):
basedir = "storage/LeaseCrawler/expire_cutoff_date"
fileutil.make_dirs(basedir)
# setting cutoff-date to 2000 seconds ago means that any lease which
# is more than 2000s old will be expired.
now = time.time()
then = int(now - 2000)
ss = InstrumentedStorageServer(basedir, "\x00" * 20,
expiration_enabled=True,
expiration_mode="cutoff-date",
expiration_cutoff_date=then)
# make it start sooner than usual.
lc = ss.lease_checker
lc.slow_start = 0
lc.stop_after_first_bucket = True
webstatus = StorageStatus(ss)
# create a few shares, with some leases on them
self.make_shares(ss)
[immutable_si_0, immutable_si_1, mutable_si_2, mutable_si_3] = self.sis
def count_shares(si):
return len(list(ss._iter_share_files(si)))
def _get_sharefile(si):
return list(ss._iter_share_files(si))[0]
def count_leases(si):
return len(list(_get_sharefile(si).get_leases()))
self.failUnlessEqual(count_shares(immutable_si_0), 1)
self.failUnlessEqual(count_leases(immutable_si_0), 1)
self.failUnlessEqual(count_shares(immutable_si_1), 1)
self.failUnlessEqual(count_leases(immutable_si_1), 2)
self.failUnlessEqual(count_shares(mutable_si_2), 1)
self.failUnlessEqual(count_leases(mutable_si_2), 1)
self.failUnlessEqual(count_shares(mutable_si_3), 1)
self.failUnlessEqual(count_leases(mutable_si_3), 2)
# artificially crank back the expiration time on the first lease of
# each share, to make it look like was renewed 3000s ago. To achieve
# this, we need to set the expiration time to now-3000+31days. This
# will change when the lease format is improved to contain both
# create/renew time and duration.
new_expiration_time = now - 3000 + 31*24*60*60
# Some shares have an extra lease which is set to expire at the
# default time in 31 days from now (age=31days). We then run the
# crawler, which will expire the first lease, making some shares get
# deleted and others stay alive (with one remaining lease)
sf0 = _get_sharefile(immutable_si_0)
self.backdate_lease(sf0, self.renew_secrets[0], new_expiration_time)
sf0_size = os.stat(sf0.home).st_size
# immutable_si_1 gets an extra lease
sf1 = _get_sharefile(immutable_si_1)
self.backdate_lease(sf1, self.renew_secrets[1], new_expiration_time)
sf2 = _get_sharefile(mutable_si_2)
self.backdate_lease(sf2, self.renew_secrets[3], new_expiration_time)
sf2_size = os.stat(sf2.home).st_size
# mutable_si_3 gets an extra lease
sf3 = _get_sharefile(mutable_si_3)
self.backdate_lease(sf3, self.renew_secrets[4], new_expiration_time)
ss.setServiceParent(self.s)
d = fireEventually()
# examine the state right after the first bucket has been processed
def _after_first_bucket(ignored):
p = lc.get_progress()
if not p["cycle-in-progress"]:
d2 = fireEventually()
d2.addCallback(_after_first_bucket)
return d2
d.addCallback(_after_first_bucket)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html_in_cycle(html):
s = remove_tags(html)
# the first bucket encountered gets deleted, and its prefix
# happens to be about 1/5th of the way through the ring, so the
# predictor thinks we'll have 5 shares and that we'll delete them
# all. This part of the test depends upon the SIs landing right
# where they do now.
self.failUnlessIn("The remainder of this cycle is expected to "
"recover: 4 shares, 4 buckets", s)
self.failUnlessIn("The whole cycle is expected to examine "
"5 shares in 5 buckets and to recover: "
"5 shares, 5 buckets", s)
d.addCallback(_check_html_in_cycle)
# wait for the crawler to finish the first cycle. Two shares should
# have been removed
def _wait():
return bool(lc.get_state()["last-cycle-finished"] is not None)
d.addCallback(lambda ign: self.poll(_wait))
def _after_first_cycle(ignored):
self.failUnlessEqual(count_shares(immutable_si_0), 0)
self.failUnlessEqual(count_shares(immutable_si_1), 1)
self.failUnlessEqual(count_leases(immutable_si_1), 1)
self.failUnlessEqual(count_shares(mutable_si_2), 0)
self.failUnlessEqual(count_shares(mutable_si_3), 1)
self.failUnlessEqual(count_leases(mutable_si_3), 1)
s = lc.get_state()
last = s["history"][0]
self.failUnlessEqual(last["expiration-enabled"], True)
self.failUnlessEqual(last["configured-expiration-mode"],
("cutoff-date", None, then,
("mutable", "immutable")))
self.failUnlessEqual(last["leases-per-share-histogram"],
{1: 2, 2: 2})
rec = last["space-recovered"]
self.failUnlessEqual(rec["examined-buckets"], 4)
self.failUnlessEqual(rec["examined-shares"], 4)
self.failUnlessEqual(rec["actual-buckets"], 2)
self.failUnlessEqual(rec["original-buckets"], 0)
self.failUnlessEqual(rec["configured-buckets"], 2)
self.failUnlessEqual(rec["actual-shares"], 2)
self.failUnlessEqual(rec["original-shares"], 0)
self.failUnlessEqual(rec["configured-shares"], 2)
size = sf0_size + sf2_size
self.failUnlessEqual(rec["actual-sharebytes"], size)
self.failUnlessEqual(rec["original-sharebytes"], 0)
self.failUnlessEqual(rec["configured-sharebytes"], size)
# different platforms have different notions of "blocks used by
# this file", so merely assert that it's a number
self.failUnless(rec["actual-diskbytes"] >= 0,
rec["actual-diskbytes"])
self.failUnless(rec["original-diskbytes"] >= 0,
rec["original-diskbytes"])
self.failUnless(rec["configured-diskbytes"] >= 0,
rec["configured-diskbytes"])
d.addCallback(_after_first_cycle)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html(html):
s = remove_tags(html)
self.failUnlessIn("Expiration Enabled:"
" expired leases will be removed", s)
date = time.strftime("%Y-%m-%d (%d-%b-%Y) UTC", time.gmtime(then))
substr = "Leases created or last renewed before %s will be considered expired." % date
self.failUnlessIn(substr, s)
self.failUnlessIn(" recovered: 2 shares, 2 buckets (1 mutable / 1 immutable), ", s)
d.addCallback(_check_html)
return d
def test_only_immutable(self):
basedir = "storage/LeaseCrawler/only_immutable"
fileutil.make_dirs(basedir)
now = time.time()
then = int(now - 2000)
ss = StorageServer(basedir, "\x00" * 20,
expiration_enabled=True,
expiration_mode="cutoff-date",
expiration_cutoff_date=then,
expiration_sharetypes=("immutable",))
lc = ss.lease_checker
lc.slow_start = 0
webstatus = StorageStatus(ss)
self.make_shares(ss)
[immutable_si_0, immutable_si_1, mutable_si_2, mutable_si_3] = self.sis
# set all leases to be expirable
new_expiration_time = now - 3000 + 31*24*60*60
def count_shares(si):
return len(list(ss._iter_share_files(si)))
def _get_sharefile(si):
return list(ss._iter_share_files(si))[0]
def count_leases(si):
return len(list(_get_sharefile(si).get_leases()))
sf0 = _get_sharefile(immutable_si_0)
self.backdate_lease(sf0, self.renew_secrets[0], new_expiration_time)
sf1 = _get_sharefile(immutable_si_1)
self.backdate_lease(sf1, self.renew_secrets[1], new_expiration_time)
self.backdate_lease(sf1, self.renew_secrets[2], new_expiration_time)
sf2 = _get_sharefile(mutable_si_2)
self.backdate_lease(sf2, self.renew_secrets[3], new_expiration_time)
sf3 = _get_sharefile(mutable_si_3)
self.backdate_lease(sf3, self.renew_secrets[4], new_expiration_time)
self.backdate_lease(sf3, self.renew_secrets[5], new_expiration_time)
ss.setServiceParent(self.s)
def _wait():
return bool(lc.get_state()["last-cycle-finished"] is not None)
d = self.poll(_wait)
def _after_first_cycle(ignored):
self.failUnlessEqual(count_shares(immutable_si_0), 0)
self.failUnlessEqual(count_shares(immutable_si_1), 0)
self.failUnlessEqual(count_shares(mutable_si_2), 1)
self.failUnlessEqual(count_leases(mutable_si_2), 1)
self.failUnlessEqual(count_shares(mutable_si_3), 1)
self.failUnlessEqual(count_leases(mutable_si_3), 2)
d.addCallback(_after_first_cycle)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html(html):
s = remove_tags(html)
self.failUnlessIn("The following sharetypes will be expired: immutable.", s)
d.addCallback(_check_html)
return d
def test_only_mutable(self):
basedir = "storage/LeaseCrawler/only_mutable"
fileutil.make_dirs(basedir)
now = time.time()
then = int(now - 2000)
ss = StorageServer(basedir, "\x00" * 20,
expiration_enabled=True,
expiration_mode="cutoff-date",
expiration_cutoff_date=then,
expiration_sharetypes=("mutable",))
lc = ss.lease_checker
lc.slow_start = 0
webstatus = StorageStatus(ss)
self.make_shares(ss)
[immutable_si_0, immutable_si_1, mutable_si_2, mutable_si_3] = self.sis
# set all leases to be expirable
new_expiration_time = now - 3000 + 31*24*60*60
def count_shares(si):
return len(list(ss._iter_share_files(si)))
def _get_sharefile(si):
return list(ss._iter_share_files(si))[0]
def count_leases(si):
return len(list(_get_sharefile(si).get_leases()))
sf0 = _get_sharefile(immutable_si_0)
self.backdate_lease(sf0, self.renew_secrets[0], new_expiration_time)
sf1 = _get_sharefile(immutable_si_1)
self.backdate_lease(sf1, self.renew_secrets[1], new_expiration_time)
self.backdate_lease(sf1, self.renew_secrets[2], new_expiration_time)
sf2 = _get_sharefile(mutable_si_2)
self.backdate_lease(sf2, self.renew_secrets[3], new_expiration_time)
sf3 = _get_sharefile(mutable_si_3)
self.backdate_lease(sf3, self.renew_secrets[4], new_expiration_time)
self.backdate_lease(sf3, self.renew_secrets[5], new_expiration_time)
ss.setServiceParent(self.s)
def _wait():
return bool(lc.get_state()["last-cycle-finished"] is not None)
d = self.poll(_wait)
def _after_first_cycle(ignored):
self.failUnlessEqual(count_shares(immutable_si_0), 1)
self.failUnlessEqual(count_leases(immutable_si_0), 1)
self.failUnlessEqual(count_shares(immutable_si_1), 1)
self.failUnlessEqual(count_leases(immutable_si_1), 2)
self.failUnlessEqual(count_shares(mutable_si_2), 0)
self.failUnlessEqual(count_shares(mutable_si_3), 0)
d.addCallback(_after_first_cycle)
d.addCallback(lambda ign: renderDeferred(webstatus))
def _check_html(html):
s = remove_tags(html)
self.failUnlessIn("The following sharetypes will be expired: mutable.", s)
d.addCallback(_check_html)
return d
def test_bad_mode(self):
basedir = "storage/LeaseCrawler/bad_mode"
fileutil.make_dirs(basedir)
e = self.failUnlessRaises(ValueError,
StorageServer, basedir, "\x00" * 20,
expiration_mode="bogus")
self.failUnlessIn("GC mode 'bogus' must be 'age' or 'cutoff-date'", str(e))
def test_limited_history(self):
basedir = "storage/LeaseCrawler/limited_history"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20)
# make it start sooner than usual.
lc = ss.lease_checker
lc.slow_start = 0
lc.cpu_slice = 500
# create a few shares, with some leases on them
self.make_shares(ss)
ss.setServiceParent(self.s)
def _wait_until_15_cycles_done():
last = lc.state["last-cycle-finished"]
if last is not None and last >= 15:
return True
if lc.timer:
lc.timer.reset(0)
return False
d = self.poll(_wait_until_15_cycles_done)
def _check(ignored):
s = lc.get_state()
h = s["history"]
self.failUnlessEqual(len(h), 10)
self.failUnlessEqual(max(h.keys()), 15)
self.failUnlessEqual(min(h.keys()), 6)
d.addCallback(_check)
return d
def test_unpredictable_future(self):
basedir = "storage/LeaseCrawler/unpredictable_future"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20)
# make it start sooner than usual.
lc = ss.lease_checker
lc.slow_start = 0
lc.cpu_slice = -1.0 # stop quickly
self.make_shares(ss)
ss.setServiceParent(self.s)
d = fireEventually()
def _check(ignored):
# this should fire after the first bucket is complete, but before
# the first prefix is complete, so the progress-measurer won't
# think we've gotten far enough to raise our percent-complete
# above 0%, triggering the cannot-predict-the-future code in
# expirer.py . This will have to change if/when the
# progress-measurer gets smart enough to count buckets (we'll
# have to interrupt it even earlier, before it's finished the
# first bucket).
s = lc.get_state()
if "cycle-to-date" not in s:
d2 = fireEventually()
d2.addCallback(_check)
return d2
self.failUnlessIn("cycle-to-date", s)
self.failUnlessIn("estimated-remaining-cycle", s)
self.failUnlessIn("estimated-current-cycle", s)
left = s["estimated-remaining-cycle"]["space-recovered"]
self.failUnlessEqual(left["actual-buckets"], None)
self.failUnlessEqual(left["original-buckets"], None)
self.failUnlessEqual(left["configured-buckets"], None)
self.failUnlessEqual(left["actual-shares"], None)
self.failUnlessEqual(left["original-shares"], None)
self.failUnlessEqual(left["configured-shares"], None)
self.failUnlessEqual(left["actual-diskbytes"], None)
self.failUnlessEqual(left["original-diskbytes"], None)
self.failUnlessEqual(left["configured-diskbytes"], None)
self.failUnlessEqual(left["actual-sharebytes"], None)
self.failUnlessEqual(left["original-sharebytes"], None)
self.failUnlessEqual(left["configured-sharebytes"], None)
full = s["estimated-remaining-cycle"]["space-recovered"]
self.failUnlessEqual(full["actual-buckets"], None)
self.failUnlessEqual(full["original-buckets"], None)
self.failUnlessEqual(full["configured-buckets"], None)
self.failUnlessEqual(full["actual-shares"], None)
self.failUnlessEqual(full["original-shares"], None)
self.failUnlessEqual(full["configured-shares"], None)
self.failUnlessEqual(full["actual-diskbytes"], None)
self.failUnlessEqual(full["original-diskbytes"], None)
self.failUnlessEqual(full["configured-diskbytes"], None)
self.failUnlessEqual(full["actual-sharebytes"], None)
self.failUnlessEqual(full["original-sharebytes"], None)
self.failUnlessEqual(full["configured-sharebytes"], None)
d.addCallback(_check)
return d
def test_no_st_blocks(self):
basedir = "storage/LeaseCrawler/no_st_blocks"
fileutil.make_dirs(basedir)
ss = No_ST_BLOCKS_StorageServer(basedir, "\x00" * 20,
expiration_mode="age",
expiration_override_lease_duration=-1000)
# a negative expiration_time= means the "configured-"
# space-recovered counts will be non-zero, since all shares will have
# expired by then
# make it start sooner than usual.
lc = ss.lease_checker
lc.slow_start = 0
self.make_shares(ss)
ss.setServiceParent(self.s)
def _wait():
return bool(lc.get_state()["last-cycle-finished"] is not None)
d = self.poll(_wait)
def _check(ignored):
s = lc.get_state()
last = s["history"][0]
rec = last["space-recovered"]
self.failUnlessEqual(rec["configured-buckets"], 4)
self.failUnlessEqual(rec["configured-shares"], 4)
self.failUnless(rec["configured-sharebytes"] > 0,
rec["configured-sharebytes"])
# without the .st_blocks field in os.stat() results, we should be
# reporting diskbytes==sharebytes
self.failUnlessEqual(rec["configured-sharebytes"],
rec["configured-diskbytes"])
d.addCallback(_check)
return d
def test_share_corruption(self):
self._poll_should_ignore_these_errors = [
UnknownMutableContainerVersionError,
UnknownImmutableContainerVersionError,
]
basedir = "storage/LeaseCrawler/share_corruption"
fileutil.make_dirs(basedir)
ss = InstrumentedStorageServer(basedir, "\x00" * 20)
w = StorageStatus(ss)
# make it start sooner than usual.
lc = ss.lease_checker
lc.stop_after_first_bucket = True
lc.slow_start = 0
lc.cpu_slice = 500
# create a few shares, with some leases on them
self.make_shares(ss)
# now corrupt one, and make sure the lease-checker keeps going
[immutable_si_0, immutable_si_1, mutable_si_2, mutable_si_3] = self.sis
first = min(self.sis)
first_b32 = base32.b2a(first)
fn = os.path.join(ss.sharedir, storage_index_to_dir(first), "0")
f = open(fn, "rb+")
f.seek(0)
f.write("BAD MAGIC")
f.close()
# if get_share_file() doesn't see the correct mutable magic, it
# assumes the file is an immutable share, and then
# immutable.ShareFile sees a bad version. So regardless of which kind
# of share we corrupted, this will trigger an
# UnknownImmutableContainerVersionError.
# also create an empty bucket
empty_si = base32.b2a("\x04"*16)
empty_bucket_dir = os.path.join(ss.sharedir,
storage_index_to_dir(empty_si))
fileutil.make_dirs(empty_bucket_dir)
ss.setServiceParent(self.s)
d = fireEventually()
# now examine the state right after the first bucket has been
# processed.
def _after_first_bucket(ignored):
s = lc.get_state()
if "cycle-to-date" not in s:
d2 = fireEventually()
d2.addCallback(_after_first_bucket)
return d2
so_far = s["cycle-to-date"]
rec = so_far["space-recovered"]
self.failUnlessEqual(rec["examined-buckets"], 1)
self.failUnlessEqual(rec["examined-shares"], 0)
self.failUnlessEqual(so_far["corrupt-shares"], [(first_b32, 0)])
d.addCallback(_after_first_bucket)
d.addCallback(lambda ign: renderJSON(w))
def _check_json(raw):
data = json.loads(raw)
# grr. json turns all dict keys into strings.
so_far = data["lease-checker"]["cycle-to-date"]
corrupt_shares = so_far["corrupt-shares"]
# it also turns all tuples into lists
self.failUnlessEqual(corrupt_shares, [[first_b32, 0]])
d.addCallback(_check_json)
d.addCallback(lambda ign: renderDeferred(w))
def _check_html(html):
s = remove_tags(html)
self.failUnlessIn("Corrupt shares: SI %s shnum 0" % first_b32, s)
d.addCallback(_check_html)
def _wait():
return bool(lc.get_state()["last-cycle-finished"] is not None)
d.addCallback(lambda ign: self.poll(_wait))
def _after_first_cycle(ignored):
s = lc.get_state()
last = s["history"][0]
rec = last["space-recovered"]
self.failUnlessEqual(rec["examined-buckets"], 5)
self.failUnlessEqual(rec["examined-shares"], 3)
self.failUnlessEqual(last["corrupt-shares"], [(first_b32, 0)])
d.addCallback(_after_first_cycle)
d.addCallback(lambda ign: renderJSON(w))
def _check_json_history(raw):
data = json.loads(raw)
last = data["lease-checker"]["history"]["0"]
corrupt_shares = last["corrupt-shares"]
self.failUnlessEqual(corrupt_shares, [[first_b32, 0]])
d.addCallback(_check_json_history)
d.addCallback(lambda ign: renderDeferred(w))
def _check_html_history(html):
s = remove_tags(html)
self.failUnlessIn("Corrupt shares: SI %s shnum 0" % first_b32, s)
d.addCallback(_check_html_history)
def _cleanup(res):
self.flushLoggedErrors(UnknownMutableContainerVersionError,
UnknownImmutableContainerVersionError)
return res
d.addBoth(_cleanup)
return d
class WebStatus(unittest.TestCase, pollmixin.PollMixin):
@skipIf(PY3, "Not ported yet.")
2020-08-18 17:03:36 +00:00
def setUp(self):
self.s = service.MultiService()
self.s.startService()
def tearDown(self):
return self.s.stopService()
def test_no_server(self):
w = StorageStatus(None)
html = renderSynchronously(w)
self.failUnlessIn("<h1>No Storage Server Running</h1>", html)
def test_status(self):
basedir = "storage/WebStatus/status"
fileutil.make_dirs(basedir)
nodeid = "\x00" * 20
ss = StorageServer(basedir, nodeid)
ss.setServiceParent(self.s)
w = StorageStatus(ss, "nickname")
d = renderDeferred(w)
def _check_html(html):
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Server Nickname: nickname", s)
self.failUnlessIn("Server Nodeid: %s" % base32.b2a(nodeid), s)
self.failUnlessIn("Accepting new shares: Yes", s)
self.failUnlessIn("Reserved space: - 0 B (0)", s)
d.addCallback(_check_html)
d.addCallback(lambda ign: renderJSON(w))
def _check_json(raw):
data = json.loads(raw)
s = data["stats"]
self.failUnlessEqual(s["storage_server.accepting_immutable_shares"], 1)
self.failUnlessEqual(s["storage_server.reserved_space"], 0)
self.failUnlessIn("bucket-counter", data)
self.failUnlessIn("lease-checker", data)
d.addCallback(_check_json)
return d
def test_status_no_disk_stats(self):
def call_get_disk_stats(whichdir, reserved_space=0):
raise AttributeError()
self.patch(fileutil, 'get_disk_stats', call_get_disk_stats)
# Some platforms may have no disk stats API. Make sure the code can handle that
# (test runs on all platforms).
basedir = "storage/WebStatus/status_no_disk_stats"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20)
ss.setServiceParent(self.s)
w = StorageStatus(ss)
html = renderSynchronously(w)
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Accepting new shares: Yes", s)
self.failUnlessIn("Total disk space: ?", s)
self.failUnlessIn("Space Available to Tahoe: ?", s)
self.failUnless(ss.get_available_space() is None)
def test_status_bad_disk_stats(self):
def call_get_disk_stats(whichdir, reserved_space=0):
raise OSError()
self.patch(fileutil, 'get_disk_stats', call_get_disk_stats)
# If the API to get disk stats exists but a call to it fails, then the status should
# show that no shares will be accepted, and get_available_space() should be 0.
basedir = "storage/WebStatus/status_bad_disk_stats"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20)
ss.setServiceParent(self.s)
w = StorageStatus(ss)
html = renderSynchronously(w)
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Accepting new shares: No", s)
self.failUnlessIn("Total disk space: ?", s)
self.failUnlessIn("Space Available to Tahoe: ?", s)
self.failUnlessEqual(ss.get_available_space(), 0)
def test_status_right_disk_stats(self):
GB = 1000000000
total = 5*GB
free_for_root = 4*GB
free_for_nonroot = 3*GB
reserved = 1*GB
basedir = "storage/WebStatus/status_right_disk_stats"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20, reserved_space=reserved)
expecteddir = ss.sharedir
def call_get_disk_stats(whichdir, reserved_space=0):
self.failUnlessEqual(whichdir, expecteddir)
self.failUnlessEqual(reserved_space, reserved)
used = total - free_for_root
avail = max(free_for_nonroot - reserved_space, 0)
return {
'total': total,
'free_for_root': free_for_root,
'free_for_nonroot': free_for_nonroot,
'used': used,
'avail': avail,
}
self.patch(fileutil, 'get_disk_stats', call_get_disk_stats)
ss.setServiceParent(self.s)
w = StorageStatus(ss)
html = renderSynchronously(w)
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Total disk space: 5.00 GB", s)
self.failUnlessIn("Disk space used: - 1.00 GB", s)
self.failUnlessIn("Disk space free (root): 4.00 GB", s)
self.failUnlessIn("Disk space free (non-root): 3.00 GB", s)
self.failUnlessIn("Reserved space: - 1.00 GB", s)
self.failUnlessIn("Space Available to Tahoe: 2.00 GB", s)
self.failUnlessEqual(ss.get_available_space(), 2*GB)
def test_readonly(self):
basedir = "storage/WebStatus/readonly"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20, readonly_storage=True)
ss.setServiceParent(self.s)
w = StorageStatus(ss)
html = renderSynchronously(w)
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Accepting new shares: No", s)
def test_reserved(self):
basedir = "storage/WebStatus/reserved"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20, reserved_space=10e6)
ss.setServiceParent(self.s)
w = StorageStatus(ss)
html = renderSynchronously(w)
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Reserved space: - 10.00 MB (10000000)", s)
def test_huge_reserved(self):
basedir = "storage/WebStatus/reserved"
fileutil.make_dirs(basedir)
ss = StorageServer(basedir, "\x00" * 20, reserved_space=10e6)
ss.setServiceParent(self.s)
w = StorageStatus(ss)
html = renderSynchronously(w)
self.failUnlessIn("<h1>Storage Server Status</h1>", html)
s = remove_tags(html)
self.failUnlessIn("Reserved space: - 10.00 MB (10000000)", s)
def test_util(self):
w = StorageStatusElement(None, None)
self.failUnlessEqual(w.render_space(None), "?")
self.failUnlessEqual(w.render_space(10e6), "10000000")
self.failUnlessEqual(w.render_abbrev_space(None), "?")
self.failUnlessEqual(w.render_abbrev_space(10e6), "10.00 MB")
self.failUnlessEqual(remove_prefix("foo.bar", "foo."), "bar")
self.failUnlessEqual(remove_prefix("foo.bar", "baz."), None)