Summary: Fixes T7053. Depends on D14452.
Test Plan:
Created a custom daemon which dumps out the config hash (by querying `PhabricatorEnv::calculateEnvironmentHash()`). Ran this daemon with `./bin/phd debug PhabricatorDebugDaemon` and saw the config hash update within 30 seconds.
{P1886}
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin
Maniphest Tasks: T7053
Differential Revision: https://secure.phabricator.com/D14458
Summary:
Ref T9252. Currently, `queueTask()` accepts `$priority` as its third argument. Allow it to take a full range of `$options` instead. This API just never got updated after we expanded avialable options.
Arguably this whole API should be some kind of "TaskQueueRequest" object but I'll leave that for another day.
Test Plan:
- Grepped for `queueTask()` and verified no other callsites are affected by this API change.
- Ran some daemons.
- See also next diff.
Reviewers: hach-que, chad
Reviewed By: hach-que, chad
Maniphest Tasks: T9252
Differential Revision: https://secure.phabricator.com/D14235
Summary:
Ref T9252. Currently, Harbormaster and Drydock work like this in some cases:
# Queue a lease for activation.
# Then, a little later, save the lease PHID somewhere.
# When the target/resource is destroyed, destroy the lease.
However, something can happen between (1) and (2). In Drydock this window is very short and the "something" would have to be a lighting strike or something similar, but in Harbormaster we wait until the resource activates to do (2) so the window can be many minutes long. In particular, a user can use "Abort Build" during those many minutes.
If they do, the target is destroyed but it doesn't yet have a record of the artifact, so the artifact isn't cleaned up.
Make these things work like this instead:
# Create a new lease and pre-generate a PHID for it.
# Save that PHID as something that needs to be cleaned up.
# Queue the lease for activation.
# When the target/resource is destroyed, destroy the lease if it exists.
This makes sure there's no step in the process where we might lose track of a lease/resource.
Also, clean up and standardize some other stuff I hit.
Test Plan:
- Stopped daemons.
- Restarted a build in Harbormaster.
- Stepped through the build one stage at a time using `bin/worker execute ...`.
- After the lease was queued, but before it activated, aborted the build.
- Processed the Harbormaster side of things only.
- Saw the lease get destroyed properly.
Reviewers: chad, hach-que
Reviewed By: hach-que
Maniphest Tasks: T9252
Differential Revision: https://secure.phabricator.com/D14234
Summary:
Fixes T9494. This:
- Removes all the random GC.x.y.z config.
- Puts it all in one place that's locked and which you use `bin/garbage set-policy ...` to adjust.
- Makes every TTL-based GC configurable.
- Simplifies the code in the actual GCs.
Test Plan:
- Ran `bin/garbage collect` to collect some garbage, until it stopped collecting.
- Ran `bin/garbage set-policy ...` to shorten policy. Saw change in web UI. Ran `bin/garbage collect` again and saw it collect more garbage.
- Set policy to indefinite and saw it not collect garabge.
- Set policy to default and saw it reflected in web UI / `collect`.
- Ran `bin/phd debug trigger` and saw all GCs fire with reasonable looking queries.
- Read new docs.
{F857928}
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T9494
Differential Revision: https://secure.phabricator.com/D14219
Summary:
Ref T9252. This primarily allows Harbormaster to request (and Drydock to fulfill) working copies with a patch from a staging area. Doing this means we can do builds on in-review changes from `arc diff`.
This is a little cobbled-together but should basically work.
Also fix some other issues:
- Yielded, awakend workers are fine to update but could complain.
- We can't log slot lock failures to resources if we don't end up saving them.
- Killing the transaction would wipe out the log.
- Fix some TODOs, etc.
Test Plan: Ran Harbormaster builds on a local revision.
Reviewers: hach-que, chad
Reviewed By: chad
Maniphest Tasks: T9252
Differential Revision: https://secure.phabricator.com/D14214
Summary:
Ref T9252. This is the same as D14201, but for lease stuff instead of resource stuff.
This one is a little heavier but still feels pretty reasonable to me at the end of the day (worker is <1K lines and has a ton of comment stuff).
Also fixes a few random bugs I hit in the task queue.
Test Plan:
- Restarted some Harbormaster builds, saw them go through cleanly.
- Released pre-activation resources/leases.
- Probably still kinda buggy but I'll iron the details out over time.
Logs are starting to look somewhat plausible:
{F855747}
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T9252
Differential Revision: https://secure.phabricator.com/D14202
Summary:
Ref T9123. To run upstream builds in Harbormaster/Drydock, we need to be able to check out `libphutil`, `arcanist` and `phabricator` next to one another.
This adds an "Also Clone: ..." field to Harbormaster working copy build steps so I can type all three repos into it and get a proper clone with everything we need.
This is somewhat upstream-centric and a bit narrow, but I don't think it's totally unreasonable, and most of the underlying stuff is relatively general.
This adds some more typechecking and improves data/type handling for custom fields, too. In particular, it prevents users from entering an invalid/restricted value in a field (for example, you can't "Also Clone" a repository you don't have permission to see).
Test Plan: Restarted build, got a Drydock resource with multiple repositories in it.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T9123
Differential Revision: https://secure.phabricator.com/D14183
Summary:
Ref T9252. Currently, Harbormaster does this when trying to acquire a working copy:
- Ask for a working copy.
- Yield for 15 seconds.
- Check if we have a working copy yet.
That's OK, but Drydock takes ~1s to acquire a working copy lease if a resource is already available, so we end up doing this:
- T+0: Ask for a working copy.
- T+0: Yield for 15 seconds.
- T+1: Working copy lease activates.
- T+15: Working copy lease is used.
- T+16: Build finishes.
So we end up spending about 2 seconds doing work and 14 seconds sleeping.
One way to fix this would be to fiddle with the yield duration, so we yield for 1, 2, 4, ... seconds or something. This probably isn't a bad idea for longer leases (i.e., wait for 15, 30, 45 ... seconds or similar) but it implies a lot of churn for short leases.
Instead, let tasks "awaken" other tasks when they complete. The "awaken" operation means: if a task is in a yielded state (no failures, no owner, explicitly yielded, future expires time), pretend it only yielded until right now instead of whenever it really yielded to.
Basically, this rewrites history so that even though Harbormaster did a `yield(15)`, we pretend it did a `yield(4)` after we activate the lease if lease activation took 4 seconds.
If this misses, it's fine: we fall back to the normal yield behavior and things move forward normally a few seconds later.
If it hits, we get a more nimble process pretty cleanly.
Test Plan:
- Restarted a build plan (lease working copy + run `ls`) with this patch no-op'd, took about 16 seconds.
- Restarted a build plan with this patch active, took about 1 second.
Reviewers: hach-que, chad
Reviewed By: chad
Maniphest Tasks: T9252
Differential Revision: https://secure.phabricator.com/D14178
Summary:
Fixes T6569. This implements an expiry mechanism for Drydock resources which parallels the mechanism for leases.
A few things are missing that we'll probably need in the future:
- An "EXPIRES" command to update the expiration time. This would let resources be permanent while leased, then expire after, say, 24 hours without any leases.
- A callback like `shouldActuallyExpireRightNow()` for resources and leases that lets them decide not to expire at the last second.
- A callback like `didAcquireLease()` for resource blueprints, to parallel `didReleaseLease()`, letting them clear or extend their timer.
However, this stuff would mostly just let us tune behaviors, not really open up new capabilities.
Test Plan: Changed host resources to expire after 60 seconds, leased one, saw it vanish 60 seconds later.
Reviewers: hach-que, chad
Reviewed By: chad
Maniphest Tasks: T6569
Differential Revision: https://secure.phabricator.com/D14176
Summary: Ref T6569. If a lease is activated with an expiration date, schedule a task to try to clean it up after that time.
Test Plan:
- Used `bin/drydock lease ... --until ...` to activate a lease in the near future.
- Waited for a bit.
- Saw it expire and get destroyed at the scheduled time.
Reviewers: hach-que, chad
Reviewed By: chad
Maniphest Tasks: T6569
Differential Revision: https://secure.phabricator.com/D14148
Summary:
Ref T9252. This simplifies some Drydock code.
Most of this code relates to the old notion of Drydock being able to enumerate all the tasks it needs to complete in order to acquire a lease. The code has stepped back from this, since it's unnecessary, the queue is more powerful than it used to be, and it would be a lot of work to keep track of.
The ~only thing that should ever wait for leases in modern code is `bin/drydock lease`, and it's fine for it to just sit there sleeping, so this just does that.
This reduces the granularity of logging, but I'll address that separately in future logging-focused changes.
Test Plan: Used `bin/drydock lease` to acquire a lease, saw it acquire cleanly.
Reviewers: hach-que, chad
Reviewed By: chad
Maniphest Tasks: T9252
Differential Revision: https://secure.phabricator.com/D14147
Summary:
Ref T9253. For resources and leases that need to do something which takes a lot of time or requires waiting, allow them to allocate/acquire first and then activate later.
When we allocate a resource or acquire a lease, the blueprint can either activate it immediately (if all the work can happen quickly/inline) or activate it later. If the blueprint activates it later, we queue a worker to handle activating it.
Rebuild the "working copy" blueprint to work with this model: it allocates/acquires and activates in a separate step, once it is able to acquire a host.
Test Plan: With some power of imagination, brought up a bunch of working copies with `bin/drydock lease --type working-copy ...`
Reviewers: hach-que, chad
Reviewed By: hach-que, chad
Maniphest Tasks: T9253
Differential Revision: https://secure.phabricator.com/D14127
Summary: Use `PhutilClassMaQuery` instead of `PhutilSymbolLoader`, mostly for consistency. Depends on D13588.
Test Plan: Poked around a bunch of pages.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D13589
Summary:
Fixes T7370. Two changes:
- Make the default to show nothing, instead of showing all the data. This is a better default because the data is sometimes sensitive. Workers should have to opt in to revealing it.
- For TargetWorkers, link to the target (technically the build, for now, since there's no dedicated target detail page).
Test Plan: {F698325}
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T7370
Differential Revision: https://secure.phabricator.com/D13845
Summary: Move some `PhabricatorSearchField` subclasses to be adjacent to the application to which they belong. This seems generally better to me than lumping them all together in the `src/applications/search/field/` directory. I was also wondering if it makes sense to rename these subclasses as `PhabricatorXSearchField` rather than `PhabricatorSearchXField` (as per T5655), but wasn't really sure if these objects are meant to be search-fields, or just fields belonging to the #search application.
Test Plan: N/A.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D13374
Summary:
Ref T8637. This does nothing interesting, just has empty scaffolding for a bulk job queue.
Basic idea is that when you do something like a batch edit in Maniphest, we:
- Create a BulkJob with all the details.
- Queue a worker to start the job.
- Send you to a progress bar page for the job.
In the background:
- The "start job" worker creates a ton of Task objects, then queues worker tasks to do the work.
In the foreground:
- Fancy ajax animates the progress bar and it goes wooosh.
In general:
- Big jobs actually work.
- Jobs get logged.
- You can monitor jobs.
- Terrible junk like T8637 should be much harder to write and much easier to catch and diagnose.
Test Plan:
No interesting code/beahavior yet. Clean `storage adjust`.
{F526411}
Reviewers: chad, btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T8637
Differential Revision: https://secure.phabricator.com/D13392
Summary: Fixes T8599. I'm not sure how to reproduce the original issue, but I'm fairly confident that the issue is that the issue is that `execute()` is not called on the query object.
Test Plan: Created a Harbormaster build plan with a single "Lease Host" step. Ran `./bin/harbormaster build --plan 1 D1` from the command line and hit the exception as described in T8599. Applied patch and hit a different exception (which I think is just because I don't know how to use #drydock and #harbormaster).
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: hach-que, epriestley, Korvin
Maniphest Tasks: T8599
Differential Revision: https://secure.phabricator.com/D13335
Summary: All classes should extend from some other class. See D13275 for some explanation.
Test Plan: `arc unit`
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D13283
Summary:
Ref T8424. This adds a standard KeyValueCache to serve as a request cache.
In particular, I need to cache Spaces (they are frequently accessed, sometimes by multiple viewers) but not have them survive longer than the scope of one request.
This request cache is explicitly destroyed by each web request and each daemon request.
In the very long term, building this kind of construct supports reusing PHP interpreters to run web requests (see some discussion in T2312).
Test Plan:
- Added and executed unit tests.
- Ran every daemon.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T8424
Differential Revision: https://secure.phabricator.com/D13153
Summary: Use `__CLASS__` instead of hard-coding class names. Depends on D12605.
Test Plan: Eyeball it.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: hach-que, Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12806
Summary:
Ref T4100. Ref T5595. These functions are trivial for now, but move us toward being able to define more default query behavior by default.
Future changes will give these methods meaningful, nontrivial behaviors.
Test Plan: `arc unit --everything`
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5595, T4100
Differential Revision: https://secure.phabricator.com/D12454
Summary:
Ref T4100. Ref T5595.
To support a unified "Projects:" query across all applications, a future diff is going to add a set of "Edge Logic" capabilities to `PolicyAwareQuery` which write the required SELECT, JOIN, WHERE, HAVING and GROUP clauses for you.
With the addition of "Edge Logic", we'll have three systems which may need to build components of query claues: ordering/paging, customfields/applicationsearch, and edge logic.
For most clauses, queries don't currently call into the parent explicitly to get default components. I want to move more query construction logic up the class tree so it can be shared.
For most methods, this isn't a problem, but many subclasses define a `buildWhereClause()`. Make all such definitions protected and consistent.
This causes no behavioral changes.
Test Plan: Ran `arc unit --everything`, which does a pretty through job of verifying this statically.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: yelirekim, hach-que, epriestley
Maniphest Tasks: T4100, T5595
Differential Revision: https://secure.phabricator.com/D12453
Summary:
Ref T7352. Make sure modern `phd stop` can still read the old PID file format and stop the daemons, at least for now.
Without this, `stop` still detects them and tells you to `stop --force`, which works, but this makes things a good deal cleaner.
Test Plan: Ran `phd stop` from master, then `phd stop` from this revision. Saw old daemons stop cleanly.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7352
Differential Revision: https://secure.phabricator.com/D11873
Summary:
Fixes T7352. This reduces the memory footprint for instances by combining these two similar daemons into one daemon which handles the responsibilities of both.
The fit isn't 100% perfect here but it's pretty close, and the GC daemon is fairly trivial.
Test Plan:
- Adjusted all the numbers to small numbers (5 second sleep, 120 second GC length).
- Added a ton of logging.
- Started trigger daemon.
- Saw it run a GC cycle.
- Saw it reschedule another cycle after 120 seconds (adjusted down from 4 hours).
- Reverted all the logging/small numbers.
- Ran `bin/phd start`, saw stable trigger daemon running.
- Grepped for removed daemon class name.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7352
Differential Revision: https://secure.phabricator.com/D11872
Summary: Ref T7352. This is pretty straightforward. I renamed `phd.start-taskmasters` to `phd.taskmasters` for clarity.
Test Plan:
- Ran `phd start`, `phd start --autoscale-reserve 0.25`, `phd restart --autoscale-reserve 0.25`, etc.
- Examined PID file to see options were passed.
- I'm defaulting this off (0 reserve) and making it a flag rather than an option because it's a very advanced feature which is probably not useful outside of instancing.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7352
Differential Revision: https://secure.phabricator.com/D11871
Summary:
Ref T7352. We were previously identifying things by `<daemonClass, overseerPID, startTime>` but that's not unique in a world where one overseer can run multiple daemons.
We already have an internal "daemonID", it just doesn't get written into the DB right now.
Start writing it, then use it to clean up `phd status`.
Test Plan: Ran `phd status`, got more accurate/useful output than previously.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7352
Differential Revision: https://secure.phabricator.com/D11865
Summary: Ref T7352. This makes `phd stop` and `phd status` produce more reasonable output with the new PID file format.
Test Plan: Ran `phd stop`, `phd status`, etc.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7352
Differential Revision: https://secure.phabricator.com/D11856
Summary:
Ref T7352. This changes `phd` to pass configuration to overseers over stdin. We still run one overseer per daemon.
The "status" stuff needs some cleanup, but it's mostly just UI/cosmetic.
Test Plan:
- Ran `phd debug`, `phd launch`, `phd start`, `phd status`, `phd stop`, etc.
- Verified PID files write in a reasonable format.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7352
Differential Revision: https://secure.phabricator.com/D11855
Summary:
Right now, taskmasters on empty queues sleep for 30 seconds. With a default setup (4 taskmasters), this averages out to 7.5 seconds between the time you do anything that queues something and the time that the taskmasters start work on it.
On instances, which currently launch a smaller number of taskmasters, this wait is even longer.
Instead, sleep for the number of seconds that there are taskmasters, with a random offset. This makes the average wait to start a task from an empty queue 1 second, and the average maximum load of an empty queue also one query per second.
On loaded instances this doesn't matter, but this should dramatically improve behavior for less-loaded instances without any real tradeoffs.
Test Plan: Started several taskmasters, saw them jitter out of sync and then use short sleeps to give an empty queue about a 1s delay.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D11772
Summary:
Ref T7152. Ref T3554.
- When an administrator clicks "send invites", queue tasks to send the invites.
- Then, actually send the invites.
- Make the links in the invites work properly.
- Also provide `bin/worker execute` to make debugging one-off workers like this easier.
- Clean up some UI, too.
Test Plan:
We now get as far as the exception which is a placeholder for a registration workflow.
{F291213}
{F291214}
{F291215}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T3554, T7152
Differential Revision: https://secure.phabricator.com/D11736
Summary: Fixes T7111. Also nails out the TODO to show the username
Test Plan: fired up the ole phabot, chatted "P123" and saw "P123: https://secure.phabricator.com/P123 - Masterwork From Distant Lands by epriestley"...!
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7111
Differential Revision: https://secure.phabricator.com/D11664
Summary:
Ref T6881. This adds the worker, and a script to make it easier to test. It doesn't actually invoice anything.
I'm intentionally allowing the script to double-bill since it makes testing way easier (by letting you bill the same period over and over again), and provides a tool for recovery if billing screws up.
(This diff isn't very interesting, just trying to avoid a 5K-line diff at the end.)
Test Plan: Used `bin/phortune invoice ...` to get the worker to print out some date ranges which it would theoretically invoice.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11577
Summary: I got these wrong and the test didn't trigger for some reason that I haven't looked into.
Test Plan: `arc unit --everything`
Reviewers: hach-que, btrahan
Reviewed By: btrahan
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D11453
Summary:
Ref T6881. I tried to cheat here by not implementing this, but we need it for destroying triggers directly with `bin/remove destroy`, since that needs to load them by PHID.
So, cheat slightly less. Implement PolicyAware but not CursorPagedPolicyAware.
Test Plan:
- Used `bin/remove destroy` to destroy a trigger by PHID.
- Browsed daemon console.
- Ran trigger daemon.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11445
Summary:
Ref T6881. This makes it easier to fire a trigger and make sure it works properly. You can use the `--now` flag to travel through time, and test scheduling conditions with `--last` and `--next`. It will tell you when the trigger would reschedule.
Better than waiting 24 hours to see if things work.
Test Plan: Fired some backups, got useful output which made me think my code probably works correctly.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11438
Summary: Ref T6881. This is useful to show a "Next backup: 2:30 AM" sort of thing without requring callers to know how triggers work internally.
Test Plan: Showed that kind of thing in Instances.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11437
Summary:
Ref T6881. By design, the EXECUTION order only selects tasks which have been scheduled (since it performs a JOIN). This is inconsistent with other queries and problematic for withID/withPHID queries which may want to select an unscheduled task.
Switch to standard ID ordering by default.
Test Plan:
- Instances console now finds unscheduled triggers.
- Verified that all existing queries specify an explicit order.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11436
Summary: Ref T6881. When stuff with triggers is destroyed, it should destroy the triggers.
Test Plan: Will test in Instances.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11435
Summary: Ref T6881. Add a standard "just queue a task" trigger action; I expect almost all application code to use this.
Test Plan: Will test in Instances.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11429
Summary: Ref T6881. I just want to show trigger info in the instance management console.
Test Plan: Will test in Instances.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11428
Summary: Ref T6881. Before implementing subscriptions, I'm going to vet triggers by using them to do backups. Each instance will get a daily trigger for backups, and that should give us a smaller-scale test to catch issues and limitations, with more opportunities for something to go wrong since it fires more often.
Test Plan: Added unit tests.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11427
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 T6881. This will probably make more sense in a couple of diffs, but this is a class that implements scheduling/recurrence rules. Two rules are provided:
- Trigger an event at a specific time (e.g., a meeting reminder notification).
- Trigger an event on the Nth day of every month (e.g., a subscription bill).
At some point, we'll presumably add a rule for T2896 (maybe using the "RRULE" spec) so you can do stuff like "the second to last thursday of every month", etc., but we don't need that for now.
(The "Nth day of every month, or move it back if no such day exists" rule doesn't seem to be expressible with the "RRULE" format, so implementing that wouldn't give us a superset of this. I think this rule is correct and desirable for this purpose, though.)
Test Plan: Added and executed unit tests.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6881
Differential Revision: https://secure.phabricator.com/D11403
Summary:
This is unusual, but if `getWorkerInstance()` throws we end up with an undefined `$worker` when recovering from the exception.
Instead, handle this case slightly more gracefully.
The easiest way to hit this is to schedule a task for a worker that doesn't exist (or remove an existing worker, which is what I did to hit it).
Test Plan: Saw a more graceful error recovery; ran some normal successful tasks out of the queue.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D11413
Summary: Ref T6822.
Test Plan: `grep`. This method is only called from within `PhutilArgumentWorkflow::__construct`.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Maniphest Tasks: T6822
Differential Revision: https://secure.phabricator.com/D11415
Summary: Ref T6822. This method is only called from `PhutilDaemon::execute()` and can be made `protected`.
Test Plan: See D11404.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T6822
Differential Revision: https://secure.phabricator.com/D11405
Summary: Fixes T6842. Allow the daemons to always be terminated, even if MySQL is down. I was hoping to be able to optionally enable this behavior with the `--force` flag, but this seems messy.
Test Plan:
```lang=bash
> ./bin/phd start
Freeing active task leases...
Freed 1 task lease(s).
Preparing to launch daemons.
NOTE: Logs will appear in '/var/tmp/phd/log/daemons.log'.
Starting daemons as phd
Launching daemon "PhabricatorRepositoryPullLocalDaemon".
Starting daemons as phd
Launching daemon "PhabricatorGarbageCollectorDaemon".
Starting daemons as phd
Launching daemon "PhabricatorTaskmasterDaemon".
Done.
> service mysql stop
mysql stop/waiting
> ./bin/phd stop
Interrupting daemon 'PhabricatorRepositoryPullLocalDaemon' (4263)...
Interrupting daemon 'PhabricatorGarbageCollectorDaemon' (4271)...
Interrupting daemon 'PhabricatorTaskmasterDaemon' (4287)...
Daemon 4263 exited.
Daemon 4271 exited.
Daemon 4287 exited.
```
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T6842
Differential Revision: https://secure.phabricator.com/D11385
Summary:
Ref T2783. Currently, the repository edit page does some checks agaisnt the local system to look for binaries and files on disk. These checks don't make sense in a cluster environment.
Ideally, we could make a Conduit call to the host (e.g., add something like `diffusion.querysetupstatus`) to do these checks, but since they're pretty basic config things and cluster installs are advanced, it doesn't seem super worthwhile for now.
Test Plan: Saw fewer checks in a cluster repo.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T2783
Differential Revision: https://secure.phabricator.com/D11102
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. This more or less "fixes" it but there's probably some polish to do?
Test Plan:
stopped and started daemons. error logs look good.
ran bin/storage upgrade. noted that `adjust` added the appropriate indices for active and archive task.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T5402
Differential Revision: https://secure.phabricator.com/D11044
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:
Ref T6742. Root cause of the issue:
- Daemon was running on a machine with a very long host name, which produced a lease name which was longer than 64 characters.
- MySQL wasn't set in STRICT_ALL_TABLES.
- The daemon would `UPDATE .. SET leaseOwner = <very long string>` to lock a task, and MySQL would silently truncate.
- The daemon would then try to select the locked task, but fail, because there's no matching lease owner.
To resolve this, use only the first 32 characters of the hostname. See IRC for more discussion.
Test Plan: Will confirm with reporter.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T6742
Differential Revision: https://secure.phabricator.com/D10998
Summary:
Fixes T6702. Ref T3554. Currently, tasks can be cancelled, retried and freed from the web UI by any logged in user.
This isn't appreciably dangerous (I can't come up with a way that a user could do anything security-affecting), but I think I probably intended this to be admin-only, but these actions should move to the CLI anyway.
Move them to the CLI. Lay some groundwork for some future `bin/worker cancel --class SomeTaskClass`, but don't implement that yet.
Test Plan: Used `cancel`, `retry` and `free` from the CLI. Hit all the error/success states.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T3554, T6702
Differential Revision: https://secure.phabricator.com/D10939
Summary:
Ref T6615. Mixing ASC and DESC ordering on a multipart key makes it dramatically less effective (or perhaps totally ineffective).
Reverse the meaning of the `priority` column so it goes in the same direction as the `id` column (both ascending, lower values execute sooner).
Test Plan:
- Queued 1.2M tasks with `bin/worker flood`.
- Processed ~1 task/second with `bin/phd debug taskmaster` before patch.
- Applied patch, took ~5 seconds for ~1.2M rows.
- Processed ~100-200 tasks/second with `bin/phd debug taskmaster` after patch.
- "Next in Queue" query on daemon page dropped from 1.5s to <1ms.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: aklapper, 20after4, epriestley
Maniphest Tasks: T6615
Differential Revision: https://secure.phabricator.com/D10895
Summary: Ref T6615. Ref T3554. We need better tooling around the queue eventually, so start here.
Test Plan: Added 100K+ tasks locally with `bin/worker flood`. Executed some of them with `bin/phd debug taskmaster` (we already have a TestWorker, used in unit tests).
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T3554, T6615
Differential Revision: https://secure.phabricator.com/D10894
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:
Ref T1191. Now that the whole database is covered, we don't need to do as much work to build expected schemata. Doing them database-by-database was helpful in converting, but is just reudndant work now.
Instead of requiring every application to build its Lisk objects, just build all Lisk objects.
I removed `harbormaster.lisk_counter` because it is unused.
It would be nice to autogenerate edge schemata, too, but that's a little trickier.
Test Plan: Database setup issues are all green.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley, hach-que
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D10620
Summary:
Ref T1191. When changing the column type of an AUTO_INCREMENT column, we currently may lose the autoincrement attribute.
Instead, support it. This is a bit messy because AUTO_INCREMENT columns interact with PRIMARY KEY columns (tables may only have one AUTO_INCREMENT column, and it must be a primary key). We need to migrate in more phases to avoid this issue.
Introduce new `auto` and `auto64` types to represent autoincrement IDs.
Test Plan:
- Saw autoincrement show up correctly in web UI.
- Fixed an autoincrement issue on the XHProf storage table with `bin/storage adjust` safely.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D10607
Summary:
Ref T1191. Ref T6203. While generating expected schemata, I ran into these columns which seem to have sketchy nullability.
- Mark most of them for later resolution (T6203). They work fine today and don't need to block T1191. Changing them can break the application, so we can't autofix them.
- Forgive a couple of them that are sort-of reasonable or going to get wiped out.
Test Plan: Saw 94 remaining warnings.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: hach-que, epriestley
Maniphest Tasks: T1191, T6203
Differential Revision: https://secure.phabricator.com/D10593
Summary:
Ref T1191. Some notes here:
- Drops the old LDAP and OAuth info tables. These were migrated to the ExternalAccount table a very long time ago.
- Separates surplus/missing keys from other types of surplus/missing things. In the long run, my plan is to have only two notice levels:
- Error: something we can't fix (missing database, table, or column; overlong key).
- Warning: something we can fix (surplus anything, missing key, bad column type, bad key columns, bad uniqueness, bad collation or charset).
- For now, retaining three levels is helpful in generating all the expected scheamta.
Test Plan:
- Saw ~200 issues resolve, leaving ~1,300.
- Grepped for removed tables.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D10580
Summary: T1191. Nothing very notable here.
Test Plan: Saw more blue in web UI.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D10522
Summary: Fixes T5884. Macro images are no longer public on most installs. We could generate tokens for them, but this (using Conduit to pull the file data) is easier and more correct.
Test Plan: Logged a bot into IRC and had it spam part of a macro before being killed for flooding.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5884
Differential Revision: https://secure.phabricator.com/D10274
Summary: Fixes T5883. The first time we hit an error we'll continue forward; we only bail after the second time. Instead, check for an error immediately
Test Plan: HA HA HA DID NOT TEST HA HA HA HA
Reviewers: btrahan, cburroughs
Reviewed By: cburroughs
Subscribers: epriestley
Maniphest Tasks: T5883
Differential Revision: https://secure.phabricator.com/D10265
Summary: Fixes T3173. This doesn't actually fix T3173 but I'm going to redirect that. It does make the bot quit IRC gracefully, with a nicer quit message, which can be customized.
Test Plan: Got a bot to quit IRC with nice messages.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T3173
Differential Revision: https://secure.phabricator.com/D10257
Summary:
Fixes T5855. Adds a `--graceful N` flag to `phd stop` and `phd restart`.
`phd` will send SIGINT, wait `N` seconds, SIGTERM, wait 15 seconds, and SIGKILL. By default, `N` is 15.
Test Plan:
- Ran `bin/phd debug ...` and used `^C` to interrupt daemons. Saw graceful shutdown behavior, and abrupt termination on multiple `^C`.
- Ran `bin/phd start`, `bin/phd stop` and `bin/phd restart` with `--graceful` set to various things, notably `0`. Saw graceful shutdowns on the CLI and in the web UI. With `0`, abrupt shutdowns.
Reviewers: btrahan, hach-que
Reviewed By: hach-que
Subscribers: epriestley
Maniphest Tasks: T5855
Differential Revision: https://secure.phabricator.com/D10228
Summary:
Restores functionality for Flowdock->Chatbot adapter.
Most likely the result of API changes in the year since the original patch was contributed,
the flowdock adapter no longer worked.
This makes a few tweaks to both the base streaming adapter class and the flowdock adpater. I took care to not disturb the functionality of the campfire adapter, but I don't have any way to test it.
Test Plan: I am new here and I have no idea what to write other than sarcastic things but I'll most like amend this after review.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D10168
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: I'm pretty sure that `@group` annotations are useless now... see D9855. Also fixed various other minor issues.
Test Plan: Eye-ball it.
Reviewers: #blessed_reviewers, epriestley, chad
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin, hach-que
Differential Revision: https://secure.phabricator.com/D9859
Summary: The rest of this code works if we hand off `array()`, and fataling here, while more correct, is harder for users to get out of (they have to go manually remove files) and not obvious.
Test Plan: Corrupted pid file and ran `phd stop`.
Reviewers: joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D9749
Summary:
Ref T4209. Unifies the local (`./bin/phd status`) and global (`./bin/phd status --all`) view into a single table. This generally makes it easy to administer daemons running across multiple hosts.
Depends on D9606.
Test Plan:
```
> sudo ./bin/phd status
ID Host PID Started Daemon Arguments
38 localhost 2282 Jun 18 2014, 7:52:56 AM PhabricatorRepositoryPullLocalDaemon
39 localhost 2289 Jun 18 2014, 7:52:57 AM PhabricatorGarbageCollectorDaemon
40 localhost 2294 Jun 18 2014, 7:52:57 AM PhabricatorTaskmasterDaemon
41 localhost 2314 Jun 18 2014, 7:52:58 AM PhabricatorTaskmasterDaemon
42 localhost 2319 Jun 18 2014, 7:52:59 AM PhabricatorTaskmasterDaemon
43 localhost 2328 Jun 18 2014, 7:53:00 AM PhabricatorTaskmasterDaemon
44 localhost 2354 Jun 18 2014, 7:53:08 AM PhabricatorRepositoryPullLocalDaemon X --not Y
```
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T4209
Differential Revision: https://secure.phabricator.com/D9607
Summary: Ref T4209. Currently, `./bin/phd status` prints a table showing the daemons that are executing on the current host. It would be useful to be able to conventiently query the daemons running across all hosts. This would also (theoretically) make it possible to conditionally start daemons on a host depending upon the current state and on the daemons running on other hosts.
Test Plan:
```
> ./bin/phd status --all
ID Host PID Started Daemon Arguments
18 phabricator 6969 Jun 12 2014, 4:44:22 PM PhabricatorTaskmasterDaemon
17 phabricator 6961 Jun 12 2014, 4:44:19 PM PhabricatorTaskmasterDaemon
16 phabricator 6955 Jun 12 2014, 4:44:15 PM PhabricatorTaskmasterDaemon
15 phabricator 6950 Jun 12 2014, 4:44:14 PM PhabricatorTaskmasterDaemon
14 phabricator 6936 Jun 12 2014, 4:44:13 PM PhabricatorGarbageCollectorDaemon
13 phabricator 6931 Jun 12 2014, 4:44:12 PM PhabricatorRepositoryPullLocalDaemon
```
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T4209
Differential Revision: https://secure.phabricator.com/D9497
Summary: This class has been deprecated for a while now (see rP0a8b0d1392bd79b4e88fbf910b176c960d57b4b4). It should be safe to remove.
Test Plan: N/A
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9467
Summary: This class has been deprecated for a while now (see rPdad7c65bf56384480be7c18e02fdc01ea67cf1ff). It should be safe to remove.
Test Plan: N/A
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9468
Summary: This class has been deprecated for a while (see rP574bc3ba31cca2767bafe7844d7f854d90d6be1c). It should be safe to remove now.
Test Plan: N/A
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9469
Summary: Applied some more linter fixes that I previously missed because my global `arc` install was out-of-date.
Test Plan: Will run `arc unit` on another host.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9443
