From: Brian Warner Date: Mon, 9 Mar 2009 03:38:28 +0000 (-0700) Subject: storage.expirer: exercise the last missing line of webstatus code X-Git-Tag: allmydata-tahoe-1.4.0~72 X-Git-Url: https://git.rkrishnan.org/pf/content/en/seg/module-simplejson.decoder.html?a=commitdiff_plain;h=a68ad06254062a09df85062f4e498e6a6d9f4fe9;p=tahoe-lafs%2Ftahoe-lafs.git storage.expirer: exercise the last missing line of webstatus code --- diff --git a/src/allmydata/test/test_storage.py b/src/allmydata/test/test_storage.py index 2da33022..66f2d4ae 100644 --- a/src/allmydata/test/test_storage.py +++ b/src/allmydata/test/test_storage.py @@ -1634,6 +1634,7 @@ class LeaseCrawler(unittest.TestCase, pollmixin.PollMixin, WebRenderingMixin): self.failUnlessEqual(so_far["leases-per-share-histogram"], {1: 1}) self.failUnlessEqual(so_far["buckets-examined"], 1) self.failUnlessEqual(so_far["shares-examined"], 1) + self.failUnlessEqual(so_far["corrupt-shares"], []) sr1 = so_far["space-recovered"] self.failUnlessEqual(sr1["actual-numshares"], 0) self.failUnlessEqual(sr1["configured-leasetimer-diskbytes"], 0) @@ -1999,13 +2000,14 @@ class LeaseCrawler(unittest.TestCase, pollmixin.PollMixin, WebRenderingMixin): d.addCallback(_check) return d - def test_bad_share(self): - basedir = "storage/LeaseCrawler/bad_share" + def test_share_corruption(self): + basedir = "storage/LeaseCrawler/share_corruption" fileutil.make_dirs(basedir) - ss = StorageServer(basedir, "\x00" * 20) + 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 @@ -2014,43 +2016,76 @@ class LeaseCrawler(unittest.TestCase, pollmixin.PollMixin, WebRenderingMixin): # 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_mutable = min(mutable_si_2, mutable_si_3) - fn = os.path.join(ss.sharedir, storage_index_to_dir(first_mutable), "0") + 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() - # get_share_file() doesn't see the correct mutable magic, so it + # 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 this actually triggers + # immutable.ShareFile sees a bad version. So regardless of which kind + # of share we corrupted, this will trigger an # UnknownImmutableContainerVersionError. ss.setServiceParent(self.s) + d = eventual.fireEventually() + + # now examine the state right after the first bucket has been + # processed. + def _after_first_bucket(ignored): + so_far = lc.get_state()["cycle-to-date"] + self.failUnlessEqual(so_far["buckets-examined"], 1) + self.failUnlessEqual(so_far["shares-examined"], 0) + self.failUnlessEqual(so_far["corrupt-shares"], [(first_b32, 0)]) + d.addCallback(_after_first_bucket) + + d.addCallback(lambda ign: self.render_json(w)) + def _check_json(json): + data = simplejson.loads(json) + # 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: self.render1(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 = self.poll(_wait) + d.addCallback(lambda ign: self.poll(_wait)) def _after_first_cycle(ignored): s = lc.get_state() last = s["history"][0] self.failUnlessEqual(last["buckets-examined"], 4) self.failUnlessEqual(last["shares-examined"], 3) - self.failUnlessEqual(last["corrupt-shares"], - [(base32.b2a(first_mutable), 0)]) - self.flushLoggedErrors(UnknownMutableContainerVersionError, - UnknownImmutableContainerVersionError) + self.failUnlessEqual(last["corrupt-shares"], [(first_b32, 0)]) d.addCallback(_after_first_cycle) d.addCallback(lambda ign: self.render_json(w)) - def _check_json(json): + def _check_json_history(json): data = simplejson.loads(json) - # grr. json turns all dict keys into strings. last = data["lease-checker"]["history"]["0"] corrupt_shares = last["corrupt-shares"] - # it also turns all tuples into lists - self.failUnlessEqual(corrupt_shares, - [[base32.b2a(first_mutable), 0]]) - d.addCallback(_check_json) + self.failUnlessEqual(corrupt_shares, [[first_b32, 0]]) + d.addCallback(_check_json_history) + d.addCallback(lambda ign: self.render1(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 def render_json(self, page): diff --git a/src/allmydata/web/storage.py b/src/allmydata/web/storage.py index 0549bc57..f827bb58 100644 --- a/src/allmydata/web/storage.py +++ b/src/allmydata/web/storage.py @@ -153,7 +153,6 @@ class StorageStatus(rend.Page): p = lc.get_progress() if not p["cycle-in-progress"]: return "" - pieces = [] s = lc.get_state() so_far = s["cycle-to-date"] sr = so_far["space-recovered"] @@ -163,6 +162,7 @@ class StorageStatus(rend.Page): ecr = ec["space-recovered"] p = T.ul() + pieces = [] def add(*pieces): p[T.li[pieces]] @@ -194,6 +194,12 @@ class StorageStatus(rend.Page): % abbreviate_time(so_far["configured-expiration-time"]), self.format_recovered(ecr, "original-leasetimer")) + if so_far["corrupt-shares"]: + add("Corrupt shares:", + T.ul[ [T.li[ ["SI %s shnum %d" % corrupt_share + for corrupt_share in so_far["corrupt-shares"] ] + ]]]) + return ctx.tag["Current cycle:", p] def render_lease_last_cycle_results(self, ctx, data): @@ -202,22 +208,30 @@ class StorageStatus(rend.Page): if not h: return "" last = h[max(h.keys())] - pieces = [] + start, end = last["cycle-start-finish-times"] - ctx.tag["Last complete cycle " - "(which took %s and finished %s ago)" - " recovered: " - % (abbreviate_time(end-start), - abbreviate_time(time.time() - end)), - self.format_recovered(last["space-recovered"], - "actual")] + ctx.tag["Last complete cycle (which took %s and finished %s ago)" + " recovered: " % (abbreviate_time(end-start), + abbreviate_time(time.time() - end)), + self.format_recovered(last["space-recovered"], "actual") + ] + + p = T.ul() + pieces = [] + def add(*pieces): + p[T.li[pieces]] + if not last["expiration-enabled"]: rec = self.format_recovered(last["space-recovered"], "configured-leasetimer") - pieces.append(T.li["but expiration was not enabled. If it " - "had been, it would have recovered: ", - rec]) - if pieces: - ctx.tag[T.ul[pieces]] - return ctx.tag + add("but expiration was not enabled. If it had been, " + "it would have recovered: ", rec) + + if last["corrupt-shares"]: + add("Corrupt shares:", + T.ul[ [T.li[ ["SI %s shnum %d" % corrupt_share + for corrupt_share in last["corrupt-shares"] ] + ]]]) + + return ctx.tag[p]