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track+report mailbox.for_nameplate in usage

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This counts the number of "standalone" mailboxes we create, which
happens when a client does open() without first using a nameplate. The
current client doesn't do this, but future clients might.
This commit is contained in:
Brian Warner 2016-06-26 11:19:53 -07:00
parent db8511c700
commit f192db5412
1 changed files with 21 additions and 12 deletions
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33
src/wormhole/server/rendezvous.py
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@ -102,6 +102,7 @@ class Mailbox:
(self._app_id, self._mailbox_id)).fetchone()
if not row:
return
for_nameplate = row["for_nameplate"]
row = db.execute("SELECT * FROM `mailbox_sides`"
" WHERE `mailbox_id`=? AND `side`=?",
@ -126,7 +127,8 @@ class Mailbox:
db.execute("DELETE FROM `mailbox_sides` WHERE `mailbox_id`=?",
(self._mailbox_id,))
db.execute("DELETE FROM `mailboxes` WHERE `id`=?", (self._mailbox_id,))
self._app._summarize_mailbox_and_store(side_rows, when, pruned=False)
self._app._summarize_mailbox_and_store(for_nameplate, side_rows,
when, pruned=False)
db.commit()
# Shut down any listeners, just in case they're still lingering
# around.
@ -199,7 +201,7 @@ class AppNamespace:
log.msg("creating nameplate#%s for app_id %s" %
(name, self._app_id))
mailbox_id = generate_mailbox_id()
self._add_mailbox(mailbox_id, side, when) # ensure row exists
self._add_mailbox(mailbox_id, True, side, when) # ensure row exists
sql = ("INSERT INTO `nameplates`"
" (`app_id`, `name`, `mailbox_id`)"
" VALUES(?,?,?)")
@ -298,7 +300,7 @@ class AppNamespace:
return Usage(started=started, waiting_time=waiting_time,
total_time=total_time, result=result)
def _add_mailbox(self, mailbox_id, side, when):
def _add_mailbox(self, mailbox_id, for_nameplate, side, when):
assert isinstance(mailbox_id, type("")), type(mailbox_id)
db = self._db
row = db.execute("SELECT * FROM `mailboxes`"
@ -306,15 +308,15 @@ class AppNamespace:
(self._app_id, mailbox_id)).fetchone()
if not row:
self._db.execute("INSERT INTO `mailboxes`"
" (`app_id`, `id`, `updated`)"
" VALUES(?,?,?)",
(self._app_id, mailbox_id, when))
" (`app_id`, `id`, `for_nameplate`, `updated`)"
" VALUES(?,?,?,?)",
(self._app_id, mailbox_id, for_nameplate, when))
# we don't need a commit here, because mailbox.open() only
# does SELECT FROM `mailbox_sides`, not from `mailboxes`
def open_mailbox(self, mailbox_id, side, when):
assert isinstance(mailbox_id, type("")), type(mailbox_id)
self._add_mailbox(mailbox_id, side, when) # ensure row exists
self._add_mailbox(mailbox_id, False, side, when) # ensure row exists
db = self._db
if not mailbox_id in self._mailboxes: # ensure Mailbox object exists
if self._log_requests:
@ -345,14 +347,15 @@ class AppNamespace:
# log.msg("freed+killed #%s, now have %d DB mailboxes, %d live" %
# (mailbox_id, len(self.get_claimed()), len(self._mailboxes)))
def _summarize_mailbox_and_store(self, side_rows, delete_time, pruned):
def _summarize_mailbox_and_store(self, for_nameplate, side_rows,
delete_time, pruned):
db = self._db
u = self._summarize_mailbox(side_rows, delete_time, pruned)
db.execute("INSERT INTO `mailbox_usage`"
" (`app_id`,"
" (`app_id`, `for_nameplate`,"
" `started`, `total_time`, `waiting_time`, `result`)"
" VALUES (?, ?,?,?,?)",
(self._app_id,
" VALUES (?,?, ?,?,?,?)",
(self._app_id, for_nameplate,
u.started, u.total_time, u.waiting_time, u.result))
self._mailbox_counts[u.result] += 1
@ -455,6 +458,9 @@ class AppNamespace:
for mailbox_id in old_mailboxes:
log.msg(" deleting mailbox", mailbox_id)
row = db.execute("SELECT * FROM `mailboxes`"
" WHERE `id`=?", (mailbox_id,)).fetchone()
for_nameplate = row["for_nameplate"]
side_rows = db.execute("SELECT * FROM `mailbox_sides`"
" WHERE `mailbox_id`=?",
(mailbox_id,)).fetchall()
@ -464,7 +470,8 @@ class AppNamespace:
(mailbox_id,))
db.execute("DELETE FROM `mailboxes` WHERE `id`=?",
(mailbox_id,))
self._summarize_mailbox_and_store(side_rows, now, pruned=True)
self._summarize_mailbox_and_store(for_nameplate, side_rows,
now, pruned=True)
modified = True
if modified:
@ -592,6 +599,8 @@ class Rendezvous(service.MultiService):
" WHERE `result`='pruney'")
um["crowded"] = q("SELECT COUNT() FROM `mailbox_usage`"
" WHERE `result`='crowded'")
um["standalone"] = q("SELECT COUNT() FROM `mailbox_usage`"
" WHERE `for_nameplate`=0")
# recent timings (last 100 operations)
# TODO: median/etc of nameplate.total_time