Summary:
Ref T6881. Hopefully, this is the hard part.
This adds a new daemon (the "trigger" daemon) which processes triggers, schedules them, and then executes them at the scheduled time. The design is a little complicated, but has these goals:
- High resistance to race conditions: only the application writes to the trigger table; only the daemon writes to the event table. We won't lose events if someone saves a meeting at the same time as we're sending a reminder out for it.
- Execution guarantees: scheduled events are guaranteed to execute exactly once.
- Support for arbitrarily large queues: the daemon will make progress even if there are millions of triggers in queue. The cost to update the queue is proportional to the number of changes in it; the cost to process the queue is proportional to the number of events to execute.
- Relatively good observability: you can monitor the state of the trigger queue reasonably well from the web UI.
- Modular Infrastructure: this is a very low-level construct that Calendar, Phortune, etc., should be able to build on top of.
It doesn't have this stuff yet:
- Not very robust to bad actions: a misbehaving trigger can stop the queue fairly easily. This is OK for now since we aren't planning to make it part of any other applications for a while. We do still get execute-exaclty-once, but it might not happen for a long time (until someone goes and fixes the queue), when we could theoretically continue executing other events.
- Doesn't start automatically: normal users don't need to run this thing yet so I'm not starting it by default.
- Not super well tested: I've vetted the basics but haven't run real workloads through this yet.
- No sophisticated tooling: I added some basic stuff but it's missing some pieces we'll have to build sooner or later, e.g. `bin/trigger cancel` or whatever.
- Intentionally not realtime: This design puts execution guarantees far above realtime concerns, and will not give you precise event execution at 1-second resolution. I think this is the correct goal to pursue architecturally, and certainly correct for subscriptions and meeting reminders. Events which execute after they have become irrelevant can simply decline to do anything (like a meeting reminder which executes after the meeting is over).
In general, the expectation for applications is:
- When creating an object (like a calendar event) that needs to trigger a scheduled action, write a trigger (and save the PHID if you plan to update it later).
- The daemon will process the event and schedule the action efficiently, in a race-free way.
- If you want to move the action, update the trigger and the daemon will take care of it.
- Your action will eventually dump a task into the task queue, and the task daemons will actually perform it.
Test Plan:
Using a test script like this:
```
<?php
require_once 'scripts/__init_script__.php';
$trigger = id(new PhabricatorWorkerTrigger())
->setAction(
new PhabricatorLogTriggerAction(
array(
'message' => 'test',
)))
->setClock(
new PhabricatorMetronomicTriggerClock(
array(
'period' => 33,
)))
->save();
var_dump($trigger);
```
...I queued triggers and ran the daemon:
- Verified triggers fire;
- verified triggers reschedule;
- verified trigger events show up in the web UI;
- tried different periods;
- added some triggers while the daemon was running;
- examined `phd debug` output for anything suspicious.
It seems to work in trivial use case, at least.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11419
Summary: Ref T5402.
Test Plan:
- Queried archived tasks.
- Grepped for use sites and verified no other callsites are order-sensitive.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5402
Differential Revision: https://secure.phabricator.com/D11089
Summary: Ref T5402, T6238. Pull this out into a class so the Instances app can embed task views.
Test Plan: Loaded `/daemon/` and examined the content in the tables.
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T6238, T5402
Differential Revision: https://secure.phabricator.com/D11090
Summary: Ref T5402. This cleans up some code and sets us up to use this sort of data more easily later.
Test Plan: viewed the daemon console from the web and the log of a specific archived daemon. both looked good. for other callsites looked really, really carefully.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T5402
Differential Revision: https://secure.phabricator.com/D11042
Summary:
Fixes an issue with T5336 / D9871. We did 99% of the work here but didn't actually turn on the priority sorting. The unit test passed by default, which didn't catch this.
- Fix the unit test (it failed).
- Fix the query (test now passes).
- Add a "Next in Queue" element to the UI to make this kind of thing easier to spot/understand.
Test Plan: Ran unit test. Viewed "Next in Queue". Queued some tasks, flushed the queue. Web UI tracked the state sensibly.
Reviewers: joshuaspence, btrahan
Reviewed By: btrahan
Subscribers: cburroughs, epriestley
Differential Revision: https://secure.phabricator.com/D10766
Summary: Fixes T5336. Currently, `PhabricatorWorkerLeaseQuery` is basically FIFO. It makes more sense for the queue to be a priority-queue, and to assign higher priorities to alerts (email and SMS).
Test Plan: Created dummy tasks in the queue (with different priorities). Verified that the priority field was set correctly in the DB and that the priority was shown on the `/daemon/` page. Started a `PhabricatorTaskmasterDaemon` and verified that the higher priority tasks were executed before lower priority tasks.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Maniphest Tasks: T5336
Differential Revision: https://secure.phabricator.com/D9871
Summary:
Ref T5446.
- For all callsites which do not specify a value, set `false` explicitly.
- Make `true` the default.
Test Plan: Used `grep`, then manually went through everything.
Reviewers: chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T5446
Differential Revision: https://secure.phabricator.com/D9687
Summary:
See <http://github.com/facebook/phabricator/issues/487>. By default, we perform a write in this query to moved daemons to "dead" status after a timeout. This is normally reasonable, but after D7964 we do a setup check against the daemons, which means this query is invoked very early in the stack, before we have a write guard.
Since doing this write unconditionally is unnecessarily, surprising, and overly ambitious, make the write conditional and do not attempt to perform it from the setup check.
(We could also move this to a GC/cron sort of thing eventually, maybe -- it's a bit awkward here, but we don't have other infrastructure which is a great fit right now.)
Test Plan: Hit setup issues and daemon pages. Will confirm with user that this fixes things.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D8023
Summary: We currently have a lot of calls to `addCrumb(id(new PhabricatorCrumbView())->...)` which can be expressed much more simply with a convenience method. Nearly all crumbs are only textual.
Test Plan:
- This was mostly automated, then I cleaned up a few unusual sites manually.
- Bunch of grep / randomly clicking around.
Reviewers: btrahan, chad
Reviewed By: btrahan
CC: hach-que, aran
Differential Revision: https://secure.phabricator.com/D7787
Summary:
This came up recently in a discussion with @lifeihuang, and then tangentally with @hach-que. Make it easier for users to get a sense of whether they might need to add more daemons. Although we've improved the transparency of daemons, it's not easy for non-experts to determine at a glance how close to overflowing the queue is.
This number is approximate, but should be good enough for determining if your queue is more like 25% or 95% full.
If this goes over, say, 80%, it's probably a good idea to think about adding a couple of daemons. If it's under that, you should generally be fine.
Test Plan: {F88331}
Reviewers: btrahan, hach-que, lifeihuang
Reviewed By: btrahan
CC: hach-que, lifeihuang, aran, chad
Differential Revision: https://secure.phabricator.com/D7747
Summary: The adds the ability to set 'properties' such as state, privacy, due date to the header of objects.
Test Plan: Implemented in Paste, Pholio. Tested various states.
Reviewers: epriestley, btrahan
Reviewed By: epriestley
CC: Korvin, aran
Differential Revision: https://secure.phabricator.com/D7016
Summary:
^\s+(['"])dust\1\s*=>\s*true,?\s*$\n
Test Plan: Looked through the diff.
Reviewers: chad
Reviewed By: chad
CC: aran
Differential Revision: https://secure.phabricator.com/D6769
Summary: Fixes T3557. One thing which made T3557 kind of a mess was the lack of information about progress through temporary failures. Add a column which records a task's last failure time, and surface it in the console.
Test Plan: {F51277}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T3557
Differential Revision: https://secure.phabricator.com/D6550
Summary:
Ref T3557. This stuff does a bunch of nonsense in the View right now. Instead, do it in a real Query class.
Fixes a long-standing bug which prevented "all daemons" from showing more than 3 days' worth of data.
Test Plan: Viewed `/daemon/`, viewed "All Daemons".
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T3557
Differential Revision: https://secure.phabricator.com/D6544
Summary:
Ref T3557. Slightly improves display of daemons:
- Makes status more clear (through colors, explanatory text, icons, and explicit descriptions instead of symbols).
- Particularly, the "wait" status is now communicated as a normal status ("waiting a moment...") with a calm blue color.
- Uses modern responsive elements.
Test Plan: {F51232}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T3557
Differential Revision: https://secure.phabricator.com/D6539
Summary: Scan Daemons app for pht and fix a form or two.
Test Plan: Used Daemons app as much as I could, check all caps language.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D5133
Summary:
Lots of killed `phutil_escape_html()`.
Done by searching for `AphrontTableView` and then `$rows` (usually) backwards.
Test Plan:
Looked at homepage.
echo id(new AphrontTableView(array(array('<'))))->render();
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D4884
Summary:
Created with spatch:
lang=diff
- phutil_render_tag
+ phutil_tag
(X, Y, '...')
Then searched for `&` and `<` in the output and replaced them.
Test Plan: Loaded homepage.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D4503
Summary:
Makes various fixes to the Daemon console UI:
- Removes timeline, timeline cursors, and timeline-related controllers. This abstraction is all but dead and just waiting on an eventual cleanup effort with Facebook (see T2003). There's no need to inspect or debug it anymore.
- Instead of showing the 15 most recently launched non-exited daemons, show all the running daemons. With the old rule, "dead" daemons tended to build up at the bottom of the list -- e.g., secure.phabricator.com shows the 7 active daemons, then 8 dead daemons from as far back as Aug 2012. Showing running daemons is far more useful.
- Simplify the two "Running Daemons" and "All Daemons" subviews into one "All Daemons" subview. The main console now has "running daemons", effectively.
- Create a "Recently completed tasks" view, which shows how many tasks of each task class have completed in the last 15 minutes and how long they took on average. Understanding how quickly tasks are completing is one of the most common uses of the daemon console, and it's currently almost useless for that. Now that we archive tasks, we can show this information in an easily digestable form.
- Partially modernize all of the remaining views.
Test Plan: Looked at daemon console.
Reviewers: btrahan, chad, vrana
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2372, T2003
Differential Revision: https://secure.phabricator.com/D4573
Summary:
This commit doesn't change license of any file. It just makes the license implicit (inherited from LICENSE file in the root directory).
We are removing the headers for these reasons:
- It wastes space in editors, less code is visible in editor upon opening a file.
- It brings noise to diff of the first change of any file every year.
- It confuses Git file copy detection when creating small files.
- We don't have an explicit license header in other files (JS, CSS, images, documentation).
- Using license header in every file is not obligatory: http://www.apache.org/dev/apply-license.html#new.
This change is approved by Alma Chao (Lead Open Source and IP Counsel at Facebook).
Test Plan: Verified that the license survived only in LICENSE file and that it didn't modify externals.
Reviewers: epriestley, davidrecordon
Reviewed By: epriestley
CC: aran, Korvin
Maniphest Tasks: T2035
Differential Revision: https://secure.phabricator.com/D3886
Summary:
Currently, when taskmasters complete a task it is immediately deleted. This prevents us from doing some general things, like:
- Supporting the idea of permanent failure (e.g., after N failures just stop trying).
- Showing the user how fast taskmasters are completing tasks.
- Showing the user how long tasks took to complete.
Having better visibility into this is important to Drydock, which builds on the task system. Also, generally buff debug output for task execution.
Test Plan: Ran `bin/phd debug taskmaster`. Ran `bin/phd debug garbage`. Queued some tasks via various systems.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D3852
Summary: This is arguably a more useful view than listing all daemons.
Test Plan: Looked at list, only saw daemons that haven't exited
Reviewers: vrana, epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D3286
Summary: Make it possible to get to stuff that used to be in tabs.
Test Plan: Clicked links and such.
Reviewers: btrahan, vrana
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D3264
Summary:
- `kill_init.php` said "Moving 1000 files" - I hope that this is not some limit in `FileFinder`.
- [src/infrastructure/celerity] `git mv utils.php map.php; git mv api/utils.php api.php`
- Comment `phutil_libraries` in `.arcconfig` and run `arc liberate`.
NOTE: `arc diff` timed out so I'm pushing it without review.
Test Plan:
/D1234
Browsed around, especially in `applications/repository/worker/commitchangeparser` and `applications/` in general.
Auditors: epriestley
Maniphest Tasks: T1103
2012-06-01 12:32:44 -07:00
Renamed from src/applications/daemon/controller/console/PhabricatorDaemonConsoleController.php (Browse further)
