def send_alerts(settings, db):
"""
BLINDLY SENDS ALERTS FROM THE ALERTS TABLE, ASSUMING ALL HAVE THE SAME STRUCTURE.
"""
debug = settings.param.debug
db.debug = debug
#TODO: REMOVE, LEAVE IN DB
if db.debug:
db.execute("update reasons set email_subject={{subject}}, email_template={{template}} where code={{reason}}", {
"template": CNV.object2JSON(TEMPLATE),
"subject": CNV.object2JSON(SUBJECT),
"reason": REASON
})
db.flush()
try:
new_alerts = db.query("""
SELECT
a.id alert_id,
a.reason,
r.description,
a.details,
a.severity,
a.confidence,
a.revision,
r.email_template,
r.email_subject
FROM
alerts a
JOIN
reasons r on r.code = a.reason
WHERE
a.last_sent IS NULL AND
a.status <> 'obsolete' AND
math.bayesian_add(a.severity, a.confidence) > {{alert_limit}} AND
a.solution IS NULL AND
a.reason in {{reasons}} AND
a.create_time > {{min_time}}
ORDER BY
math.bayesian_add(a.severity, a.confidence) DESC,
json.number(left(details, 65000), "diff_percent") DESC
LIMIT
10
""", {
"last_sent": datetime.utcnow() - RESEND_AFTER,
"alert_limit": ALERT_LIMIT - EPSILON,
"min_time": datetime.utcnow()-LOOK_BACK,
"reasons": SQL("("+", ".join(db.quote_value(v) for v in SEND_REASONS)+")")
})
if not new_alerts:
if debug:
Log.note("Nothing important to email")
return
for alert in new_alerts:
#poor souls that signed up for emails
listeners = ";".join(db.query("SELECT email FROM listeners WHERE reason={{reason}}", {"reason": alert.reason}).email)
body = [HEADER]
if alert.confidence >= 1:
alert.confidence = 0.999999
alert.details = CNV.JSON2object(alert.details)
try:
alert.revision = CNV.JSON2object(alert.revision)
except Exception, e:
pass
alert.score = str(-log(1.0-Math.bayesian_add(alert.severity, alert.confidence), 10)) #SHOW NUMBER OF NINES
alert.details.url = alert.details.page_url
example = alert.details.example
for e in alert.details.tests.example + [example]:
if e.push_date_min:
e.push_date_max = (2 * e.push_date) - e.push_date_min
e.date_range = (datetime.utcnow()-CNV.milli2datetime(e.push_date_min)).total_seconds()/(24*60*60) #REQUIRED FOR DATAZILLA B2G CHART REFERENCE
e.date_range = nvl(nvl(*[v for v in (7, 30, 60) if v > e.date_range]), 90) #PICK FIRST v > CURRENT VALUE
subject = expand_template(CNV.JSON2object(alert.email_subject), alert)
body.append(expand_template(CNV.JSON2object(alert.email_template), alert))
body = "".join(body)+FOOTER
if debug:
Log.note("EMAIL: {{email}}", {"email": body})
if len(body) > MAX_EMAIL_LENGTH:
Log.note("Truncated the email body")
suffix = "... (has been truncated)"
body = body[0:MAX_EMAIL_LENGTH - len(suffix)] + suffix #keep it reasonable
db.call("mail.send", (
listeners, #to
subject,
body, #body
None
))
#I HOPE I CAN SEND ARRAYS OF NUMBERS
db.execute(
"UPDATE alerts SET last_sent={{time}} WHERE {{where}}", {
"time": datetime.utcnow(),
"where": esfilter2sqlwhere(db, {"terms": {"id": Q.select(new_alerts, "alert_id")}})
})
except Exception, e:
Log.error("Could not send alerts", e)
def page_threshold_limit(db, debug):
"""
simplest of rules to test the dataflow from test_run, to alert, to email
may prove slightly useful also!
#point out any pages that are breaking human-set threshold limits
"""
db.debug = debug
try:
# CALCULATE HOW FAR BACK TO LOOK
lasttime = db.query("SELECT last_run, description FROM reasons WHERE code={{type}}", {"type": REASON})[0]
lasttime = nvl(lasttime.last_run, datetime.utcnow())
min_date = lasttime + LOOK_BACK
# FIND ALL PAGES THAT HAVE LIMITS TO TEST
# BRING BACK ONES THAT BREAK LIMITS
# BUT DO NOT ALREADY HAVE AN ALERTS EXISTING
pages = db.query(
"""
SELECT
t.id tdad_id,
t.n_replicates,
t.mean,
t.std,
h.threshold,
h.severity,
h.reason,
m.id alert_id
FROM
alert_page_thresholds h
JOIN
test_data_all_dimensions t ON t.page_id=h.page
LEFT JOIN
alerts m on m.tdad_id=t.test_run_id AND m.reason={{type}}
WHERE
h.threshold<t.mean AND
t.push_date>{{min_date}} AND
(m.id IS NULL OR m.status='obsol11ete')
""",
{"type": REASON, "min_date": min_date},
)
# FOR EACH PAGE THAT BREAKS LIMITS
for page in pages:
if page.alert_id != None:
break
alert = {
"id": SQL("util.newid()"),
"status": "new",
"create_time": datetime.utcnow(),
"last_updated": datetime.utcnow(),
"tdad_id": page.tdad_id,
"reason": REASON,
"details": CNV.object2JSON(
{"expected": float(page.threshold), "actual": float(page.mean), "reason": page.reason}
),
"severity": page.severity,
"confidence": 1.0 # USING NORMAL DIST ASSUMPTION WE CAN ADJUST
# CONFIDENCE EVEN BEFORE THRESHOLD IS HIT!
# FOR NOW WE KEEP IT SIMPLE
}
db.insert("alerts", alert)
for page in pages:
if page.alert_id == None:
break
db.update("alerts", None) # ERROR FOR NOW
# OBSOLETE THE ALERTS THAT SHOULD NO LONGER GET SENT
obsolete = db.query(
"""
SELECT
m.id,
m.tdad_id
FROM
alerts m
JOIN
test_data_all_dimensions t ON m.tdad_id=t.id
JOIN
alert_page_thresholds h on t.page_id=h.page
WHERE
m.reason={{reason}} AND
h.threshold>=t.mean AND
t.push_date>{{time}}
""",
{"reason": REASON, "time": min_date},
)
if obsolete:
db.execute(
"UPDATE alerts SET status='obsolete' WHERE {{where}}",
{"where": esfilter2sqlwhere(db, {"terms": {"id": Q.select(obsolete, "id")}})},
)
db.execute(
"UPDATE reasons SET last_run={{now}} WHERE code={{reason}}", {"now": datetime.utcnow(), "reason": REASON}
)
except Exception, e:
Log.error("Could not perform threshold comparisons", e)
if a == None:
Log.error("Programmer error, changed_alerts must have {{key_value}}", {"key_value": curr.tdad.id})
if significant_difference(curr.severity, a.severity) or \
significant_difference(curr.confidence, a.confidence) or \
curr.reason != a.reason:
curr.last_updated = NOW
alerts_db.update("alerts", {"id": curr.id}, a)
#OBSOLETE THE ALERTS THAT ARE NO LONGER VALID
if obsolete_alerts:
alerts_db.execute("UPDATE alerts SET status='obsolete' WHERE {{where}}", {
"where": esfilter2sqlwhere(
alerts_db,
{"and": [
{"terms": {"id": obsolete_alerts.id}},
{"not": {"term": {"status": "obsolete"}}}
]}
)
})
alerts_db.execute("UPDATE reasons SET last_run={{now}} WHERE {{where}}", {
"now": NOW,
"where": esfilter2sqlwhere(alerts_db, {"term": {"code": REASON}})
})
alerts_db.flush()
if debug:
Log.note("Marking {{num}} test_run_id as 'done'", {"num": len(all_touched)})
def talos_alert_revision(settings):
assert settings.alerts != None
settings.db.debug = settings.param.debug
with DB(settings.alerts) as db:
with ESQuery(ElasticSearch(settings.query["from"])) as esq:
dbq = DBQuery(db)
esq.addDimension(CNV.JSON2object(File(settings.dimension.filename).read()))
#TODO: REMOVE, LEAVE IN DB
if db.debug:
db.execute("update reasons set email_subject={{subject}}, email_template={{template}} where code={{reason}}", {
"template": CNV.object2JSON(TEMPLATE),
"subject": CNV.object2JSON(SUBJECT),
"reason": REASON
})
db.flush()
#EXISTING SUSTAINED EXCEPTIONS
existing_sustained_alerts = dbq.query({
"from": "alerts",
"select": "*",
"where": {"and": [
{"term": {"reason": talos_sustained_median.REASON}},
{"not": {"term": {"status": "obsolete"}}},
{"range": {"create_time": {"gte": NOW - LOOK_BACK}}}
]}
})
tests = Q.index(existing_sustained_alerts, ["revision", "details.Talos.Test"])
#EXISTING REVISION-LEVEL ALERTS
old_alerts = dbq.query({
"from": "alerts",
"select": "*",
"where": {"and": [
{"term": {"reason": REASON}},
{"or": [
{"terms": {"revision": set(existing_sustained_alerts.revision)}},
{"term": {"reason": talos_sustained_median.REASON}},
{"term": {"status": "obsolete"}},
{"range": {"create_time": {"gte": NOW - LOOK_BACK}}}
]}
]}
})
old_alerts = Q.unique_index(old_alerts, "revision")
#SUMMARIZE
known_alerts = StructList()
for revision in set(existing_sustained_alerts.revision):
#FIND TOTAL TDAD FOR EACH INTERESTING REVISION
total_tests = esq.query({
"from": "talos",
"select": {"name": "count", "aggregate": "count"},
"where": {"and":[
{"terms": {"Talos.Revision": revision}}
]}
})
total_exceptions = tests[(revision, )] # FILTER BY revision
parts = StructList()
for g, exceptions in Q.groupby(total_exceptions, ["details.Talos.Test"]):
worst_in_test = Q.sort(exceptions, ["confidence", "details.diff_percent"]).last()
example = worst_in_test.details
# ADD SOME DATAZILLA SPECIFIC URL PARAMETERS
branch = example.Talos.Branch.replace("-Non-PGO", "")
example.tbpl.url.branch = TBPL_PATH.get(branch, branch)
example.mercurial.url.branch = MECURIAL_PATH.get(branch, branch)
example.datazilla.url.branch = example.Talos.Branch #+ ("" if worst_in_test.Talos.Branch.pgo else "-Non-PGO")
example.datazilla.url.x86 = "true" if example.Talos.Platform == "x86" else "false"
example.datazilla.url.x86_64 = "true" if example.Talos.Platform == "x86_64" else "false"
example.datazilla.url.stop = nvl(example.push_date_max, (2*example.push_date) - example.push_date_min)
num_except = len(exceptions)
if num_except == 0:
continue
part = {
"test": g.details.Talos.Test,
"num_exceptions": num_except,
"num_tests": total_tests,
"confidence": worst_in_test.confidence,
"example": example
}
parts.append(part)
parts = Q.sort(parts, [{"field": "confidence", "sort": -1}])
worst_in_revision = parts[0].example
known_alerts.append({
"status": "new",
"create_time": CNV.milli2datetime(worst_in_revision.push_date),
"reason": REASON,
"revision": revision,
"tdad_id": revision,
"details": {
"revision": revision,
"total_tests": total_tests,
"total_exceptions": len(total_exceptions),
"tests": parts,
"example": worst_in_revision
},
"severity": SEVERITY,
"confidence": worst_in_revision.result.confidence
})
known_alerts = Q.unique_index(known_alerts, "revision")
#NEW ALERTS, JUST INSERT
new_alerts = known_alerts - old_alerts
if new_alerts:
for revision in new_alerts:
revision.id = SQL("util.newid()")
revision.last_updated = NOW
db.insert_list("alerts", new_alerts)
#SHOW SUSTAINED ALERTS ARE COVERED
db.execute("""
INSERT INTO hierarchy (parent, child)
SELECT
r.id parent,
p.id child
FROM
alerts p
LEFT JOIN
hierarchy h on h.child=p.id
LEFT JOIN
alerts r on r.revision=p.revision AND r.reason={{parent_reason}}
WHERE
{{where}}
""", {
"where": esfilter2sqlwhere(db, {"and": [
{"term": {"p.reason": talos_sustained_median.REASON}},
{"terms": {"p.revision": Q.select(existing_sustained_alerts, "revision")}},
{"missing": "h.parent"}
]}),
"parent_reason": REASON
})
#CURRENT ALERTS, UPDATE IF DIFFERENT
for known_alert in known_alerts & old_alerts:
if len(nvl(known_alert.solution, "").strip()) != 0:
continue # DO NOT TOUCH SOLVED ALERTS
old_alert = old_alerts[known_alert]
if old_alert.status == 'obsolete' or significant_difference(known_alert.severity, old_alert.severity) or significant_difference(known_alert.confidence, old_alert.confidence):
known_alert.last_updated = NOW
db.update("alerts", {"id": old_alert.id}, known_alert)
#OLD ALERTS, OBSOLETE
for old_alert in old_alerts - known_alerts:
if old_alert.status == 'obsolete':
continue
db.update("alerts", {"id": old_alert.id}, {"status": "obsolete", "last_updated": NOW, "details":None})
