793666 - Mail folder databases being closed too aggressively

Status: RESOLVED DUPLICATE of bug 793455

(MailNews Core :: Database, defect)

Description

[:Irving Reid (No longer working on Firefox)]

+++ This bug was initially created as a clone of Bug #710056 +++

From https://bugzilla.mozilla.org/show_bug.cgi?id=710056#c151

 David :Bienvenu 1 day ago

Kent, I really intended the db's to only get closed after 3 minutes of idle (or 5, I can't remember), not 3 seconds. It was a milliseconds vs. seconds confusion, so that really should be fixed.

[wrap] [reply] [-] Comment 152 Wayne Mery (:wsmwk) 11 hours ago

(In reply to David :Bienvenu from comment #151)
> Kent, I really intended the db's to only get closed after 3 minutes of idle
> (or 5, I can't remember), not 3 seconds. It was a milliseconds vs. seconds
> confusion, so that really should be fixed.

Pref looks to be intended to be 5 minutes. But code doesn't net out to be, anso d dbs may be closing too quickly

  // How long should we leave idle db's open, in seconds.
  pref("mail.db.idle_limit", 3000);  (intended to be 5 min, per comments)

  attribute PRTime lastUseTime; (microseconds)

  let idleLimit = Services.prefs.getIntPref("mail.db.idle_limit");
  let closeThreshold = Date.now() - idleLimit; (microseconds)
...
      let lruTime = db.lastUseTime / 1000;  microseconds/1000 = tenths?
      if (lruTime < closeThreshold)
        db.folder.msgDatabase = null;