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Author SHA1 Message Date
epriestley
f146f4577e Fail explicitly instead of continuing with a warning if "phd.user" is misconfigured
Summary: Fixes T6806. We haven't seen users having issues with `phd.user` in a very long time.

Test Plan:
  - Configured daemons to run as `notepriestley`, got a well-explained exception.
  - Configured daemons to run as `epriestley`, got a clean start.
  - Configured daemons with `phd.user=null`, got a clean start.

Reviewers: chad, areitz

Reviewed By: areitz

Subscribers: areitz

Maniphest Tasks: T6806

Differential Revision: https://secure.phabricator.com/D15726
2016-04-15 14:09:13 -07:00
epriestley
d9dd4d427d Improve daemon console for daemons on multiple hosts
Summary:
Ref T10756. This:

  - Fixes T7307. This UI is now admin-only.
  - Makes the main "running daemons" table more useful for multi-host setups (show where daemons are running).
  - Removes logs from the web UI: these are sometimes vaguely sensitive and shouldn't be visible. The UI tells you how to get them with `bin/phd log`.
  - Minor modernization.

Test Plan:
  - As a non-admin, viewed daemons (access error) and bulk jobs (worked great).
  - Browsed bulk job pages.
  - Ran a bulk job.
  - Viewed daemon console.
  - Viewed task detail / daemon detail / daemon list pages.

{F1220516}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T7307, T10756

Differential Revision: https://secure.phabricator.com/D15724
2016-04-15 12:19:58 -07:00
Chad Little
8aad862cd4 Normalize casing on property boxes
Summary: Going to render these all normal case instead of all caps, and bump up the font size. Should be more consistent. Yellow if you green anything orange.

Test Plan: grep, lint

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D15645
2016-04-06 15:33:15 -07:00
Chad Little
27e13ea03f Update Deamons with new UI
Summary: Modernize and use newer UI

Test Plan: Bounce around various views.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D15574
2016-04-02 10:41:01 -07:00
epriestley
16a584ac7e Make bin/phd debug quieter by default
Summary:
By default, `bin/phd debug` activates `--trace`, which is incredibly verbose.

Instead, be moderately verbose by default, and only include tracing if `--trace` was passed to `bin/phd debug`.

See also D15422.

Test Plan:
  - Ran `bin/phd debug task`, got moderate amount of most useful debug output.
  - Ran `bin/phd debug task --trace`, got very verbose, detailed low-level debug output.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D15423
2016-03-07 08:04:49 -08:00
epriestley
aaab1011e5 Give AphrontTagView a getViewer(), deprecate getUser()
Summary:
Two minor changes here:

  - Replace `get/setUser()` with `get/setViewer()` for consistency with everything else.
  - `getViewer()` now throws if no viewer is set. We had a lot of code that either "should" check this but didn't, or did check it in an identical way, duplicating work. In contrast, very little code checks for a viewer but works if one is not present.

Test Plan:
  - Grepped for `->user`.
  - Attempted to fix all callsites inside `*View` classes.
  - Browsed around a bunch of applications, particularly Calendar, Differential and Diffusion, which seemed most heavily affected.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D15412
2016-03-06 09:27:38 -08:00
Chad Little
fe5cd4ca2c Move FontIcon calls to Icon
Summary: Normalizes all `setFontIcon` calls to `setIcon`.

Test Plan: UIExamples, Almanac, Apps list, etc.

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin, hach-que, yelirekim

Differential Revision: https://secure.phabricator.com/D15129
2016-01-28 08:48:45 -08:00
epriestley
96b1665eaa Link "continue" action to confirm dialog in bulk jobs that are unconfirmed
Summary: See Q266.

Test Plan: Created a bulk job, clicked "Details" instead of "Confirm", clicked "Continue" to get back to confirmation dialog.

Reviewers: chad

Reviewed By: chad

Differential Revision: https://secure.phabricator.com/D14985
2016-01-10 10:55:58 -08:00
Joshua Spence
321c61a853 Remove daemon envHash and envInfo
Summary: Ref T7053. Remove the `envHash` and `envInfo` fields, which are no longer used now that the daemons restart automagically. Depends on D14458.

Test Plan: Saw no more setup issues.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: tycho.tatitscheff, epriestley

Maniphest Tasks: T7053

Differential Revision: https://secure.phabricator.com/D14446
2015-11-11 08:54:45 +11:00
Joshua Spence
c35b564f4d Various translation improvements
Summary: Depends on D14070.

Test Plan: Eyeball it.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, hach-que

Differential Revision: https://secure.phabricator.com/D14073
2015-11-03 07:02:46 +11:00
epriestley
9c798e5cca Provide bin/garbage for interacting with garbage collection
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
2015-10-02 09:17:24 -07:00
epriestley
878a493301 Begin standardizing garbage collectors
Summary: Ref T9494. Improve support infrastructure for garbage collectors.

Test Plan:
  - Ran `bin/phd debug trigger`, saw collectors execute.

{F857852}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9494

Differential Revision: https://secure.phabricator.com/D14218
2015-10-01 16:58:43 -07:00
Joshua Spence
368f359114 Use PhutilClassMapQuery instead of PhutilSymbolLoader
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
2015-08-14 07:49:01 +10:00
epriestley
a1431e53cc Link to Harbormaster build targets from the Daemon worker page
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
2015-08-10 14:15:19 -07:00
Chad Little
384cae4942 Update Daemons for handleRequest
Summary: Updates the Daemon application calls

Test Plan: Click on various things in the Daemon app

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Differential Revision: https://secure.phabricator.com/D13835
2015-08-10 09:07:40 -07:00
Chad Little
1b744d9cb6 Remove device=false from Daemons application
Summary: Fixes T9064, marks page as mobile ready.

Test Plan: Shrink Page

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T9064

Differential Revision: https://secure.phabricator.com/D13783
2015-08-04 09:31:29 -07:00
epriestley
075f041bec Merge branch 'master' into redesign-2015 2015-06-23 13:36:47 -07:00
epriestley
3215899925 Execute Maniphest batch edits in the background with a web UI progress bar
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
2015-06-23 13:36:16 -07:00
epriestley
57b898af9a Merge branch 'master' into redesign-2015 2015-06-10 07:44:58 -07:00
Joshua Spence
bf81fda036 Linter fixes
Summary: Apply various minor linter fixes.

Test Plan: `arc lint`

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D13109
2015-06-02 22:14:01 +10:00
epriestley
3699253e49 Merge branch 'master' into redesign-2015 2015-05-28 12:00:06 -07:00
Chad Little
784a59abd9 [Redesign] Update Daemons UI
Summary: Ref T8099, updates table layouts and StatusIcons in the Daemons application.

Test Plan: Click on lots of different things in Daemons.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T8099

Differential Revision: https://secure.phabricator.com/D13052
2015-05-28 11:13:18 -07:00
epriestley
7d757483a0 Make everything 1000x or 1000000x slower
Summary:
In the great `pht()` conversion, some strings like "123,456" are now being printed as numbers with "%d". These come out as "123" instead of "123,456".

Use "%s" and "PhutilNumber" to present numbers with comma groupings.

Test Plan:
  - Viewed DarkConsole.
  - Viewed conduit logs.
  - Viewed daemon logs.
  - Grepped for `%d ms` and `%d us`.

Reviewers: btrahan, joshuaspence

Reviewed By: joshuaspence

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D12979
2015-05-23 05:36:02 -07:00
Joshua Spence
36e2d02d6e phtize all the things
Summary: `pht`ize a whole bunch of strings in rP.

Test Plan: Intense eyeballing.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12797
2015-05-22 21:16:39 +10:00
Joshua Spence
61b178f44e Use PhutilInvalidStateException
Summary: Use `PhutilInvalidStateException`. Depends on D12803.

Test Plan: Unit tests pass.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12829
2015-05-14 07:53:52 +10:00
Joshua Spence
acb45968d8 Use __CLASS__ instead of hard-coding class names
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
2015-05-14 07:21:13 +10:00
epriestley
f5580c7a08 Make buildWhereClause() a method of AphrontCursorPagedPolicyAwareQuery
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
2015-04-20 10:06:09 -07:00
epriestley
b467e58358 Fix two minor issues
Summary:
Ref T7811. Fixes two minor issues I observed in the cluster:

  - Sometimes APC doesn't give us key names. Not sure exactly what's up here, but we can do a better job with this.
  - The `%` in `25%` actually needs more escaping, since it's interpreted by both `pht()` (immediately) and `console_format()` (later).

Test Plan:
  - First one is just from an error log, not sure how to repro offhand.
  - Ran `bin/phd help start` for the second one.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7814, T7811

Differential Revision: https://secure.phabricator.com/D12395
2015-04-13 11:11:18 -07:00
epriestley
bc28b2c3a8 Examine fewer daemons for variant config
Summary:
Right now, if a daemon dies it can leave the setup warning around for like 10 minutes or something until we reap it.

Tighten the warning so we only care about actively running daemons.

Test Plan: Checked setup issues.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D12088
2015-03-15 11:31:07 -07:00
Chad Little
0ceb30af86 Moderize Daemons a little
Summary: Swaps out to modern UI components, update for mobile, fix some phts.

Test Plan: Test each Daemon page on desktop and mobile. Verify modern layout.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T7427

Differential Revision: https://secure.phabricator.com/D11958
2015-03-03 11:11:26 -08:00
Chad Little
c038c643f4 Move PHUIErrorView to PHUIInfoView
Summary: Since this element isn't strictly about errors, re-label as info view instead.

Test Plan: Grepped for all callsites, tested UIExamples and a few other random pages.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11867
2015-03-01 14:45:56 -08:00
epriestley
e27c1a4868 Add phd reload to send SIGHUP to overseers
Summary: Ref T7384. This just sends SIGHUP to specified overseers in a nice package.

Test Plan: See D11898.

Reviewers: hach-que, btrahan

Reviewed By: btrahan

Subscribers: joshuaspence, epriestley

Maniphest Tasks: T7384

Differential Revision: https://secure.phabricator.com/D11899
2015-02-27 11:38:42 -08:00
epriestley
a3518e19a5 Merge GC daemon into Trigger daemon
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
2015-02-24 14:50:39 -08:00
epriestley
af303f458b Convert taskmasters to use an autoscale pool
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
2015-02-24 14:50:38 -08:00
epriestley
a354e5fa6b Track daemon unique IDs in Phabricator daemon logs
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
2015-02-24 14:50:37 -08:00
epriestley
ef22fe1e74 Add a --force command to phd start
Summary:
Ref T7352. This isn't wildly useful for us but seems generally reasonable, can be helpful with testing, and @hach-que has a use case for it.

The only reason we issue this warning is to prevent user error; you can still launch all the daemons with `phd launch` manually and daemons all use locks to protect critical regions.

Test Plan: Ran `phd start --force` a bunch, saw zillions of daemons.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley, hach-que

Maniphest Tasks: T7352

Differential Revision: https://secure.phabricator.com/D11861
2015-02-24 14:50:35 -08:00
epriestley
48fc3126a1 Support autoscaling daemons in phd
Summary: Ref T7352. This supports passing autoscaling configuration to daemons, and adds `debug --autoscale`.

Test Plan: See D11711.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7352

Differential Revision: https://secure.phabricator.com/D11860
2015-02-24 14:50:34 -08:00
epriestley
f0f2b2cbeb Start all daemons under a single overseer
Summary:
Ref T7352. This moves all the daemons under one overseer. The primary goal is to reduce the minimum footprint of an instance in the Phacility cluster, by reducing the number of processes each instance needs to run on daemon-tier hosts.

This improves scalability by roughly a factor of 2.

Test Plan:
  - Ran `phd debug`, `phd launch, `phd start`. Saw normal behavior, with only one total overseer.
  - Fataled dameons and saw the overseer restar them normally.
  - Used `phd status` and `phd stop` and got reasonable results (`phd status` is still a touch off).

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7352

Differential Revision: https://secure.phabricator.com/D11857
2015-02-24 14:50:33 -08:00
epriestley
c2d66f29cd Make phd more aware of multiple daemons under a single overseer
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
2015-02-24 14:50:32 -08:00
epriestley
09f3d0bb7e Pass overseer configuration over stdin
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
2015-02-24 14:50:30 -08:00
epriestley
6771a70499 Update Phabricator for DaemonOverseer vs DaemonHandle split
Summary: Ref T7352. A couple of the APIs changed slightly with D11851.

Test Plan: See D11851.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7352

Differential Revision: https://secure.phabricator.com/D11852
2015-02-24 14:50:25 -08:00
epriestley
b6031a721f Fix a minor issue with killing daemons
Summary: Even if you --force, we can't kill PID 0. This sends the process itself the signal, and terminates it.

Test Plan: See D11786.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D11787
2015-02-17 14:20:57 -08:00
epriestley
e946e7cebc Add a "--gently" flag to phd stop and phd restart
Summary:
In the cluster, the box has a ton of stuff that "looks like a daemon" beacuse it is some other instance's daemon.

Stop `phd restart` from complaining about this if given a "--gently" flag, which is like the opposite of "--force".

(I'll make it `stop --force` at the beginning of a whole-box restart to kill stragglers.)

Test Plan: Ran `bin/phd restart --gently`, etc.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D11784
2015-02-17 11:14:34 -08:00
epriestley
74ea59235a Make the "daemons and web have different config" warning more specific
Summary:
I'm hitting this in the cluster and couldn't figure it out after staring at it for a couple minutes. Produce a better error.

This dumps a hash of each configuration key value which is set to a non-default value into the daemon log. This is much more compact than the full config, and doesn't spread secrets around, so it seems like a good balance between providing information and going crazy with it.

Test Plan: {F284139}

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D11699
2015-02-05 14:07:35 -08:00
Chad Little
3da38c74da PHUIErrorView
Summary: Clean up the error view styling.

Test Plan:
Tested as many as I could find, built additional tests in UIExamples

{F280452}

{F280453}

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11605
2015-02-01 20:14:56 -08:00
epriestley
f400a18b20 Start Trigger daemon alongside other daemons
Summary: Ref T6881. This won't do much of interest on third party installs yet, but it's stable and we don't need to hold it back any longer.

Test Plan: Ran `phd start`, saw the trigger daemon start up.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T6881

Differential Revision: https://secure.phabricator.com/D11603
2015-02-01 12:33:34 -08:00
Chad Little
8b06804394 Remove getIconName from all applications
Summary: Not used anymore

Test Plan: grep for 'getIconName'

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11582
2015-01-30 12:11:21 -08:00
Chad Little
5d8bb61dde Add FontIcon bridge to AppIcons
Summary: Select a similar or better FontAwesome icon to represent each application

Test Plan: Visual inspection

Reviewers: epriestley, btrahan

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11489
2015-01-24 23:43:01 -08:00
epriestley
77bcbed9f9 Implement PolicyAwareQuery for triggers
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
2015-01-20 13:32:43 -08:00
epriestley
19be32656f Implement clock/trigger infrastructure for scheduling actions
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
2015-01-16 12:13:31 -08:00