From: Brian Warner Date: Wed, 29 Jun 2011 22:25:55 +0000 (-0700) Subject: add more download-status data, fix tests X-Git-Url: https://git.rkrishnan.org/vdrive/%22news.html/frontends/webapi.txt?a=commitdiff_plain;h=d8358f2863d9219f141cd4c98e2be6a2c33891a7;p=tahoe-lafs%2Ftahoe-lafs.git add more download-status data, fix tests --- diff --git a/src/allmydata/immutable/downloader/status.py b/src/allmydata/immutable/downloader/status.py index 0bf3f715..cbe9969a 100644 --- a/src/allmydata/immutable/downloader/status.py +++ b/src/allmydata/immutable/downloader/status.py @@ -245,8 +245,7 @@ class DownloadStatus: # a download is considered active if it has at least one outstanding # read() call for r_ev in self.read_events: - (ign1, ign2, ign3, finishtime, ign4, ign5, ign6) = r_ev - if finishtime is None: + if r_ev["finish_time"] is None: return True return False diff --git a/src/allmydata/test/test_web.py b/src/allmydata/test/test_web.py index 915cba8a..951f5541 100644 --- a/src/allmydata/test/test_web.py +++ b/src/allmydata/test/test_web.py @@ -19,7 +19,7 @@ from allmydata.nodemaker import NodeMaker from allmydata.unknown import UnknownNode from allmydata.web import status, common from allmydata.scripts.debug import CorruptShareOptions, corrupt_share -from allmydata.util import fileutil, base32 +from allmydata.util import fileutil, base32, hashutil from allmydata.util.consumer import download_to_data from allmydata.util.netstring import split_netstring from allmydata.util.encodingutil import to_str @@ -78,34 +78,39 @@ def build_one_ds(): ds = DownloadStatus("storage_index", 1234) now = time.time() - ds.add_segment_request(0, now) - # segnum, when, start,len, decodetime - ds.add_segment_delivery(0, now+1, 0, 100, 0.5) - ds.add_segment_request(1, now+2) - ds.add_segment_error(1, now+3) + serverid_a = hashutil.tagged_hash("foo", "serverid_a")[:20] + serverid_b = hashutil.tagged_hash("foo", "serverid_b")[:20] + storage_index = hashutil.storage_index_hash("SI") + e0 = ds.add_segment_request(0, now) + e0.activate(now+0.5) + e0.deliver(now+1, 0, 100, 0.5) # when, start,len, decodetime + e1 = ds.add_segment_request(1, now+2) + e1.error(now+3) # two outstanding requests - ds.add_segment_request(2, now+4) - ds.add_segment_request(3, now+5) + e2 = ds.add_segment_request(2, now+4) + e3 = ds.add_segment_request(3, now+5) + del e2,e3 # hush pyflakes # simulate a segment which gets delivered faster than a system clock tick (ticket #1166) - ds.add_segment_request(4, now) - ds.add_segment_delivery(4, now, 0, 140, 0.5) + e = ds.add_segment_request(4, now) + e.activate(now) + e.deliver(now, 0, 140, 0.5) - e = ds.add_dyhb_sent("serverid_a", now) + e = ds.add_dyhb_request(serverid_a, now) e.finished([1,2], now+1) - e = ds.add_dyhb_sent("serverid_b", now+2) # left unfinished + e = ds.add_dyhb_request(serverid_b, now+2) # left unfinished e = ds.add_read_event(0, 120, now) e.update(60, 0.5, 0.1) # bytes, decrypttime, pausetime e.finished(now+1) e = ds.add_read_event(120, 30, now+2) # left unfinished - e = ds.add_request_sent("serverid_a", 1, 100, 20, now) + e = ds.add_block_request(serverid_a, 1, 100, 20, now) e.finished(20, now+1) - e = ds.add_request_sent("serverid_a", 1, 120, 30, now+1) # left unfinished + e = ds.add_block_request(serverid_a, 1, 120, 30, now+1) # left unfinished # make sure that add_read_event() can come first too - ds1 = DownloadStatus("storage_index", 1234) + ds1 = DownloadStatus(storage_index, 1234) e = ds1.add_read_event(0, 120, now) e.update(60, 0.5, 0.1) # bytes, decrypttime, pausetime e.finished(now+1) @@ -556,10 +561,24 @@ class Web(WebMixin, WebErrorMixin, testutil.StallMixin, testutil.ReallyEqualMixi def _check_dl(res): self.failUnless("File Download Status" in res, res) d.addCallback(_check_dl) - d.addCallback(lambda res: self.GET("/status/down-%d?t=json" % dl_num)) + d.addCallback(lambda res: self.GET("/status/down-%d/event_json" % dl_num)) def _check_dl_json(res): data = simplejson.loads(res) self.failUnless(isinstance(data, dict)) + self.failUnless("read" in data) + self.failUnlessEqual(data["read"][0]["length"], 120) + self.failUnlessEqual(data["segment"][0]["segment_length"], 100) + self.failUnlessEqual(data["segment"][2]["segment_number"], 2) + self.failUnlessEqual(data["segment"][2]["finish_time"], None) + phwr_id = base32.b2a(hashutil.tagged_hash("foo", "serverid_a")[:20]) + cmpu_id = base32.b2a(hashutil.tagged_hash("foo", "serverid_b")[:20]) + # serverids[] keys are strings, since that's what JSON does, but + # we'd really like them to be ints + self.failUnlessEqual(data["serverids"]["0"], "phwr") + self.failUnlessEqual(data["serverids"]["1"], "cmpu") + self.failUnlessEqual(data["server_info"][phwr_id]["short"], "phwr") + self.failUnlessEqual(data["server_info"][cmpu_id]["short"], "cmpu") + self.failUnless("dyhb" in data) d.addCallback(_check_dl_json) d.addCallback(lambda res: self.GET("/status/up-%d" % ul_num)) def _check_ul(res): diff --git a/src/allmydata/web/status.py b/src/allmydata/web/status.py index 7f1937f2..c146912c 100644 --- a/src/allmydata/web/status.py +++ b/src/allmydata/web/status.py @@ -344,8 +344,8 @@ class DownloadStatusPage(DownloadResultsRendererMixin, rend.Page): def relative_time(self, t): if t is None: return t - if self.download_status.started is not None: - return t - self.download_status.started + if self.download_status.first_timestamp is not None: + return t - self.download_status.first_timestamp return t def short_relative_time(self, t): t = self.relative_time(t) @@ -353,48 +353,150 @@ class DownloadStatusPage(DownloadResultsRendererMixin, rend.Page): return "" return "+%.6fs" % t - def renderHTTP(self, ctx): - req = inevow.IRequest(ctx) - t = get_arg(req, "t") - if t == "json": - return self.json(req) - return rend.Page.renderHTTP(self, ctx) - - def json(self, req): - req.setHeader("content-type", "text/plain") - data = {} - dyhb_events = [] - for serverid,requests in self.download_status.dyhb_requests.iteritems(): - for req in requests: - dyhb_events.append( (base32.b2a(serverid),) + req ) - dyhb_events.sort(key=lambda req: req[1]) - data["dyhb"] = dyhb_events - request_events = [] - for serverid,requests in self.download_status.requests.iteritems(): - for req in requests: - request_events.append( (base32.b2a(serverid),) + req ) - request_events.sort(key=lambda req: (req[4],req[1])) - data["requests"] = request_events - data["segment"] = self.download_status.segment_events - data["read"] = self.download_status.read_events + def _find_overlap(self, events, start_key, end_key): + # given a list of event dicts, return a new list in which each event + # has an extra "row" key (an int, starting at 0). This is a hint to + # our JS frontend about how to overlap the parts of the graph it is + # drawing. + + # we must always make a copy, since we're going to be adding "row" + # keys and don't want to change the original objects. If we're + # stringifying serverids, we'll also be changing the serverid keys. + new_events = [] + rows = [] + for ev in events: + ev = ev.copy() + if "serverid" in ev: + ev["serverid"] = base32.b2a(ev["serverid"]) + # find an empty slot in the rows + free_slot = None + for row,finished in enumerate(rows): + if finished is not None: + if ev[start_key] > finished: + free_slot = row + break + if free_slot is None: + free_slot = len(rows) + rows.append(ev[end_key]) + else: + rows[free_slot] = ev[end_key] + ev["row"] = free_slot + new_events.append(ev) + return new_events + + def _find_overlap_requests(self, events): + """We compute a three-element 'row tuple' for each event: (serverid, + shnum, row). All elements are ints. The first is a mapping from + serverid to group number, the second is a mapping from shnum to + subgroup number. The third is a row within the subgroup. + + We also return a list of lists of rowcounts, so renderers can decide + how much vertical space to give to each row. + """ + + serverid_to_group = {} + groupnum_to_rows = {} # maps groupnum to a table of rows. Each table + # is a list with an element for each row number + # (int starting from 0) that contains a + # finish_time, indicating that the row is empty + # beyond that time. If finish_time is None, it + # indicate a response that has not yet + # completed, so the row cannot be reused. + new_events = [] + for ev in events: + # DownloadStatus promises to give us events in temporal order + ev = ev.copy() + ev["serverid"] = base32.b2a(ev["serverid"]) + if ev["serverid"] not in serverid_to_group: + groupnum = len(serverid_to_group) + serverid_to_group[ev["serverid"]] = groupnum + groupnum = serverid_to_group[ev["serverid"]] + if groupnum not in groupnum_to_rows: + groupnum_to_rows[groupnum] = [] + rows = groupnum_to_rows[groupnum] + # find an empty slot in the rows + free_slot = None + for row,finished in enumerate(rows): + if finished is not None: + if ev["start_time"] > finished: + free_slot = row + break + if free_slot is None: + free_slot = len(rows) + rows.append(ev["finish_time"]) + else: + rows[free_slot] = ev["finish_time"] + ev["row"] = (groupnum, free_slot) + new_events.append(ev) + # maybe also return serverid_to_group, groupnum_to_rows, and some + # indication of the highest finish_time + # + # actually, return the highest rownum for each groupnum + highest_rownums = [len(groupnum_to_rows[groupnum]) + for groupnum in range(len(serverid_to_group))] + return new_events, highest_rownums + + def child_event_json(self, ctx): + inevow.IRequest(ctx).setHeader("content-type", "text/plain") + data = { } # this will be returned to the GET + ds = self.download_status + + data["read"] = self._find_overlap(ds.read_events, + "start_time", "finish_time") + data["segment"] = self._find_overlap(ds.segment_events, + "start_time", "finish_time") + data["dyhb"] = self._find_overlap(ds.dyhb_requests, + "start_time", "finish_time") + data["block"],data["block_rownums"] = self._find_overlap_requests(ds.block_requests) + + servernums = {} + serverid_strings = {} + for d_ev in data["dyhb"]: + if d_ev["serverid"] not in servernums: + servernum = len(servernums) + servernums[d_ev["serverid"]] = servernum + #title= "%s: %s" % ( ",".join([str(shnum) for shnum in shnums])) + serverid_strings[servernum] = d_ev["serverid"][:4] + data["server_info"] = dict([(serverid, {"num": servernums[serverid], + "color": self.color(base32.a2b(serverid)), + "short": serverid_strings[servernums[serverid]], + }) + for serverid in servernums.keys()]) + data["num_serverids"] = len(serverid_strings) + # we'd prefer the keys of serverids[] to be ints, but this is JSON, + # so they get converted to strings. Stupid javascript. + data["serverids"] = serverid_strings + data["bounds"] = {"min": ds.first_timestamp, + "max": ds.last_timestamp, + } + # for testing + ## data["bounds"]["max"] = tfmt(max([d_ev["finish_time"] + ## for d_ev in data["dyhb"] + ## if d_ev["finish_time"] is not None] + ## )) return simplejson.dumps(data, indent=1) + "\n" + def _rate_and_time(self, bytes, seconds): + time_s = self.render_time(None, seconds) + if seconds != 0: + rate = self.render_rate(None, 1.0 * bytes / seconds) + return T.span(title=rate)[time_s] + return T.span[time_s] + def render_events(self, ctx, data): if not self.download_status.storage_index: return srt = self.short_relative_time l = T.div() - + t = T.table(align="left", class_="status-download-events") t[T.tr[T.th["serverid"], T.th["sent"], T.th["received"], T.th["shnums"], T.th["RTT"]]] - dyhb_events = [] - for serverid,requests in self.download_status.dyhb_requests.iteritems(): - for req in requests: - dyhb_events.append( (serverid,) + req ) - dyhb_events.sort(key=lambda req: req[1]) - for d_ev in dyhb_events: - (serverid, sent, shnums, received) = d_ev + for d_ev in self.download_status.dyhb_requests: + serverid = d_ev["serverid"] + sent = d_ev["start_time"] + shnums = d_ev["response_shnums"] + received = d_ev["finish_time"] serverid_s = idlib.shortnodeid_b2a(serverid) rtt = None if received is not None: @@ -406,89 +508,89 @@ class DownloadStatusPage(DownloadResultsRendererMixin, rend.Page): T.td[",".join([str(shnum) for shnum in shnums])], T.td[self.render_time(None, rtt)], ]]] - + l[T.h2["DYHB Requests:"], t] l[T.br(clear="all")] - + t = T.table(align="left",class_="status-download-events") t[T.tr[T.th["range"], T.th["start"], T.th["finish"], T.th["got"], T.th["time"], T.th["decrypttime"], T.th["pausedtime"], T.th["speed"]]] for r_ev in self.download_status.read_events: - (start, length, requesttime, finishtime, bytes, decrypt, paused) = r_ev - if finishtime is not None: - rtt = finishtime - requesttime - paused + start = r_ev["start"] + length = r_ev["length"] + bytes = r_ev["bytes_returned"] + decrypt_time = "" + if bytes: + decrypt_time = self._rate_and_time(bytes, r_ev["decrypt_time"]) + speed, rtt = "","" + if r_ev["finish_time"] is not None: + rtt = r_ev["finish_time"] - r_ev["start_time"] - r_ev["paused_time"] speed = self.render_rate(None, compute_rate(bytes, rtt)) rtt = self.render_time(None, rtt) - decrypt = self.render_time(None, decrypt) - paused = self.render_time(None, paused) - else: - speed, rtt, decrypt, paused = "","","","" + paused = self.render_time(None, r_ev["paused_time"]) + t[T.tr[T.td["[%d:+%d]" % (start, length)], - T.td[srt(requesttime)], T.td[srt(finishtime)], - T.td[bytes], T.td[rtt], T.td[decrypt], T.td[paused], + T.td[srt(r_ev["start_time"])], T.td[srt(r_ev["finish_time"])], + T.td[bytes], T.td[rtt], + T.td[decrypt_time], T.td[paused], T.td[speed], ]] - + l[T.h2["Read Events:"], t] l[T.br(clear="all")] - + t = T.table(align="left",class_="status-download-events") - t[T.tr[T.th["type"], T.th["segnum"], T.th["when"], T.th["range"], + t[T.tr[T.th["segnum"], T.th["start"], T.th["active"], T.th["finish"], + T.th["range"], T.th["decodetime"], T.th["segtime"], T.th["speed"]]] - reqtime = (None, None) for s_ev in self.download_status.segment_events: - (etype, segnum, when, segstart, seglen, decodetime) = s_ev - if etype == "request": - t[T.tr[T.td["request"], - T.td["seg%d" % segnum], - T.td[srt(when)], - T.td["-"], - T.td["-"], - T.td["-"], - T.td["-"]]] - - reqtime = (segnum, when) - elif etype == "delivery": - if reqtime[0] == segnum: - segtime = when - reqtime[1] + range_s = "-" + segtime_s = "-" + speed = "-" + decode_time = "-" + if s_ev["finish_time"] is not None: + if s_ev["success"]: + segtime = s_ev["finish_time"] - s_ev["active_time"] + segtime_s = self.render_time(None, segtime) + seglen = s_ev["segment_length"] + range_s = "[%d:+%d]" % (s_ev["segment_start"], seglen) speed = self.render_rate(None, compute_rate(seglen, segtime)) - segtime = self.render_time(None, segtime) + decode_time = self._rate_and_time(seglen, s_ev["decode_time"]) else: - segtime, speed = "", "" - t[T.tr[T.td["delivery"], T.td["seg%d" % segnum], - T.td[srt(when)], - T.td["[%d:+%d]" % (segstart, seglen)], - T.td[self.render_time(None,decodetime)], - T.td[segtime], T.td[speed]]] - elif etype == "error": - t[T.tr[T.td["error"], T.td["seg%d" % segnum]]] - + # error + range_s = "error" + else: + # not finished yet + pass + + t[T.tr[T.td["seg%d" % s_ev["segment_number"]], + T.td[srt(s_ev["start_time"])], + T.td[srt(s_ev["active_time"])], + T.td[srt(s_ev["finish_time"])], + T.td[range_s], + T.td[decode_time], + T.td[segtime_s], T.td[speed]]] + l[T.h2["Segment Events:"], t] l[T.br(clear="all")] - t = T.table(align="left",class_="status-download-events") t[T.tr[T.th["serverid"], T.th["shnum"], T.th["range"], - T.th["txtime"], T.th["rxtime"], T.th["received"], T.th["RTT"]]] - reqtime = (None, None) - request_events = [] - for serverid,requests in self.download_status.requests.iteritems(): - for req in requests: - request_events.append( (serverid,) + req ) - request_events.sort(key=lambda req: (req[4],req[1])) - for r_ev in request_events: - (peerid, shnum, start, length, sent, receivedlen, received) = r_ev + T.th["txtime"], T.th["rxtime"], + T.th["received"], T.th["RTT"]]] + for r_ev in self.download_status.block_requests: rtt = None - if received is not None: - rtt = received - sent - peerid_s = idlib.shortnodeid_b2a(peerid) - t[T.tr(style="background: %s" % self.color(peerid))[ - T.td[peerid_s], T.td[shnum], - T.td["[%d:+%d]" % (start, length)], - T.td[srt(sent)], T.td[srt(received)], T.td[receivedlen], + if r_ev["finish_time"] is not None: + rtt = r_ev["finish_time"] - r_ev["start_time"] + serverid_s = idlib.shortnodeid_b2a(r_ev["serverid"]) + t[T.tr(style="background: %s" % self.color(r_ev["serverid"]))[ + T.td[serverid_s], T.td[r_ev["shnum"]], + T.td["[%d:+%d]" % (r_ev["start"], r_ev["length"])], + T.td[srt(r_ev["start_time"])], T.td[srt(r_ev["finish_time"])], + T.td[r_ev["response_length"] or ""], T.td[self.render_time(None, rtt)], ]] - + l[T.h2["Requests:"], t] l[T.br(clear="all")]