Commit Graph

3043 Commits (fe4fb37b58bea28b8591746de079d7ba81878351)

Author SHA1 Message Date
Tyler Goodlet fe4fb37b58 Add service tree tests for data-feeds and the EMS 2023-01-24 15:15:27 -05:00
Tyler Goodlet 7cfd431a2b Yield `Services` in `open_test_pikerd()` fixture 2023-01-24 15:15:27 -05:00
Tyler Goodlet 61e20a86cc Fix clearing endpoint type annots, export `open_ems()` 2023-01-24 15:15:27 -05:00
Tyler Goodlet d9b73e1d08 Yield services (manager) from `maybe_open_pikerd()` 2023-01-24 15:15:27 -05:00
Tyler Goodlet 844626f6dc Move `brokerd` service task to root `.data` mod 2023-01-13 13:21:49 -05:00
Tyler Goodlet 470079665f Use new tractor kwargs getter func 2023-01-13 13:21:49 -05:00
Tyler Goodlet 0cd87d9e54 Drop commented markestored spawner code 2023-01-13 13:21:49 -05:00
Tyler Goodlet 09711750bf Registry subsys rework
More or less a revamp (and possibly first draft for something similar in
`tractor` core) which ensures all actor trees attempt to discover the
`pikerd` registry actor.

Implementation improvements include:
- new `Registry` singleton which houses the `pikerd` discovery
  socket-address `Registry.addr` + a `open_registry()` manager which
  provides bootstrapped actor-local access.
- refine `open_piker_runtime()` to do the work of opening a root actor
  and call the new `open_registry()` depending on whether a runtime has
  yet been bootstrapped.
- rejig `[maybe_]open_pikerd()` in terms of the above.
2023-01-13 13:21:49 -05:00
Tyler Goodlet 71ca4c8e1f Use actor uid in shm keys for rt quote buffers
Allows running simultaneous data feed services on the same (linux) host
by avoiding file-name collisions instead keying shm buffer sets by the
given `brokerd` instance. This allows, for example, either multiple dev
versions of the data layer to run side-by-side or for the test suite to
be seamlessly run alongside a production instance.
2023-01-13 13:21:49 -05:00
Tyler Goodlet 9811dcf5f3 Match `services` subcmd to new reg addr module variables 2023-01-13 13:21:49 -05:00
Tyler Goodlet da659cf607 Facepalm: definitely do not short circuit discovery helpers.. 2023-01-13 13:21:49 -05:00
Tyler Goodlet 37e0ec7b7d Assert fixture caller is `pikerd` 2023-01-13 13:21:49 -05:00
Tyler Goodlet 045b76bab5 Make `Flume.index_stream()` defer to new sampling api 2023-01-13 13:21:49 -05:00
Tyler Goodlet c8c641a038 Ensure all sub-services cancel on `pikerd` exit
Previously we were relying on implicit actor termination in
`maybe_spawn_daemon()` but really on `pikerd` teardown we should be sure
to tear down not only all service tasks in each actor but also the actor
runtimes. This adjusts `Services.cancel_service()` to only cancel the
service task scope and wait on the `complete` event and reworks the
`open_context_in_task()` inner closure body to,

- always cancel the service actor at exit.
- not call `.cancel_service()` (potentially causing recursion issues on
  cancellation).
- allocate a `complete: trio.Event` to signal full task + actor termination.
- pop the service task from the `.service_tasks` registry.

Further, add a `maybe_set_global_registry_sockaddr()` helper-cm to do
the work of checking whether a registry socket needs-to/has-been set
and use it for discovery calls to the `pikerd` service tree.
2023-01-13 13:21:49 -05:00
Tyler Goodlet 6a1bb13feb Add base `pikerd` service tree custom check test 2023-01-13 13:21:49 -05:00
Tyler Goodlet 75591dd7e9 Don't raise on quote feed lags to dark clearing loop 2023-01-13 13:21:49 -05:00
Tyler Goodlet d792fed099 Move sync log msg back to info 2023-01-13 13:21:49 -05:00
Tyler Goodlet d66fb49077 Don't deliver shms from `start_backfill()`, they're not used 2023-01-13 13:21:49 -05:00
Tyler Goodlet 78c7c8524c Breakpoint when bad 1m history offsets are detected 2023-01-13 13:21:49 -05:00
Tyler Goodlet a746258f99 `binance`: always request an extra 1min OHLC bar
Seems that by default their history indexing rounds down/back to the
previous time step, so make sure we add a minute inside `Client.bars()`
when the `end_dt=None`, indicating "get the latest bar". Add
a breakpoint block that should trigger whenever the latest bar vs. the
latest epoch time is mismatched; we'll remove this after some testing
verifying the history bars issue is resolved.

Further this drops the legacy `backfill_bars()` endpoint which has been
deprecated and unused for a while.
2023-01-13 13:21:49 -05:00
Tyler Goodlet 5adb234a24 Don't receive sample-index msgs in feed layer 2023-01-13 13:21:49 -05:00
Tyler Goodlet 2778ee1401 Support not registering for sample-index msgs via `sub_for_broadcasts: bool` flag 2023-01-13 13:21:49 -05:00
Tyler Goodlet e0ca5d5200 Use `open_sample_stream()` to increment fsp buffers 2023-01-13 13:21:47 -05:00
Tyler Goodlet b3d1b1aa63 Port feed layer to use new `samplerd` APIs
Always use `open_sample_stream()` to register fast and slow quote feed
buffers and get a sampler stream which we use to trigger
`Sampler.broadcast_all()` calls on the service side after backfill
events.
2023-01-13 13:21:15 -05:00
Tyler Goodlet 5ec1a72a3d Implement a `samplerd` singleton actor service
Now spawned under the `pikerd` tree as a singleton-daemon-actor we offer
a slew of new routines in support of this micro-service:

- `maybe_open_samplerd()` and `spawn_samplerd()` which provide the
  `._daemon.Services` integration to conduct service spawning.
- `open_sample_stream()` which is a client-side endpoint which does all
  the work of (lazily) starting the `samplerd` service (if dne) and
  registers shm buffers for update as well as connect a sample-index
  stream for iterator by the caller.
- `register_with_sampler()` which is the `samplerd`-side service task
  endpoint implementing all the shm buffer and index-stream registry
  details as well as logic to ensure a lone service task runs
  `Services.increment_ohlc_buffer()`; it increments at the shortest period
  registered which, for now, is the default 1s duration.

Further impl notes:
- fixes to `Services.broadcast()` to ensure broken streams get discarded
  gracefully.
- we use a `pikerd` side singleton mutex `trio.Lock()` to ensure
  one-and-only-one `samplerd` is ever spawned per `pikerd` actor tree.
2023-01-13 13:21:15 -05:00
Tyler Goodlet a342f7d2d4 Make `._daemon.Services` for use as singleton
Drop the `_services` module level ref and adjust all client code to
match. Drop struct inheritance and convert all methods to class level.
Move `Brokerd.locks` -> `Services.locks` and add sampling mod to pikerd
enabled set.
2023-01-13 13:21:15 -05:00
Tyler Goodlet 2c76cee928 Begin formalizing `Sampler` singleton API
We're moving toward a single actor managing sampler work and distributed
independently of `brokerd` services such that a user can run samplers on
different hosts then real-time data feed infra. Most of the
implementation details include aggregating `.data._sampling` routines
into a new `Sampler` singleton type.

Move the following methods to class methods:
- `.increment_ohlc_buffer()` to allow a single task to increment all
  registered shm buffers.
- `.broadcast()` for IPC relay to all registered clients/shms.

Further add a new `maybe_open_global_sampler()` which allocates
a service nursery and assigns it to the `Sampler.service_nursery`; this
is prep for putting the step incrementer in a singleton service task
higher up the data-layer actor tree.
2023-01-13 13:21:15 -05:00
Tyler Goodlet b5f2ff854c Drop meaning the clearing rate, use per step count 2023-01-13 13:21:15 -05:00
Tyler Goodlet 3efb0b5884 Sync 1s (or less) sampler steps using rounded now-epoch 2023-01-13 13:21:15 -05:00
Tyler Goodlet 009bbe456e Always `.error()` log unknown queries for `marketstore` 2023-01-13 13:21:15 -05:00
Tyler Goodlet daf7b3f4a5 Only accept 6 tries for the same duplicate hist frame
When we see multiple history frames that are duplicate to the request
set, bail re-trying after a number of tries (6 just cuz) and return
early from the tsdb backfill loop; presume that this many duplicates
means we've hit the beginning of history. Use a `collections.Counter`
for the duplicate counts. Make sure and warn log in such cases.
2023-01-13 13:21:15 -05:00
Tyler Goodlet b0a6dd46e4 Use recon set on stack closing during reconnect
Hopefully resolves https://github.com/pikers/piker/issues/434
2023-01-13 13:21:15 -05:00
Tyler Goodlet 1c5141f4c6 Fix f-str in duplicate frame msg print 2023-01-13 13:21:15 -05:00
Tyler Goodlet 4cdd2271b0 Drop `tractor` assert bug note 2023-01-13 13:21:15 -05:00
Tyler Goodlet 89095d4e9f Ensure FSPs last 2 times are synced with its source 2023-01-13 13:21:15 -05:00
Tyler Goodlet 04c0d77595 Frame ticks in helper routine
Wow, turns out tick framing was totally borked since we weren't framing
on "greater then throttle period long waits" XD

This moves all the framing logic into a common func and calls it in
every case:
- every (normal) "pre throttle period expires" quote receive
- each "no new quote before throttle period expires" (slow case)
- each "no clearing tick yet received" / only burst on clears case
2023-01-13 13:21:15 -05:00
Tyler Goodlet d1b07c625f Copy timestamps from source to FSP dest buffer
Slice up to history's length worth of (latest) time stamps from source
series read at the start of the history init phase.
2023-01-13 13:21:15 -05:00
Tyler Goodlet a5bb33b0ff Avoid key error on already popped cancel 2023-01-13 13:21:15 -05:00
Tyler Goodlet 8e1ceca43d Add some data-flows jargon notes (re: #270) 2023-01-13 13:21:15 -05:00
Tyler Goodlet c85e7790de Rename `._flumes.py` -> `.flows.py` 2023-01-13 13:21:15 -05:00
Tyler Goodlet 2399c618b6 Expand sampler loop shm write lines 2023-01-13 13:21:15 -05:00
Tyler Goodlet 7ec88f8cac Make hist shm token optional to allow for FSPs 2023-01-13 13:21:15 -05:00
Tyler Goodlet eacd44dd65 Move `Flume` to a new `.data._flumes` module 2023-01-13 13:21:15 -05:00
Tyler Goodlet e5e70a6011 Extend `Flume` methods
Add some (untested) data slicing util methods for mapping time ranges to
source data indices:
- `.get_index()` which maps a single input epoch time to an equiv array
  (int) index.
- add `slice_from_time()` which returns a view of the shm data from an
  input epoch range presuming the underlying struct array contains
  a `'time'` field with epoch stamps.
- `.view_data()` which slices out the "in view" data according to the
  current state of the passed in `pg.PlotItem`'s view box.
2023-01-13 13:21:15 -05:00
Tyler Goodlet 7da5c2b238 Add epoch time index to fsp buffers 2023-01-13 13:21:15 -05:00
Tyler Goodlet 1ee49df31d Ensure a rt shm buffer without backfill has correct epoch timestamping 2023-01-13 13:21:15 -05:00
Tyler Goodlet f2df32a673 Use throttle period for wait-on-clearing-event timeout 2023-01-13 13:21:15 -05:00
Tyler Goodlet 125e31dbf3 Implement by-type tick-framing in throttler loop
This has been an outstanding idea for a while and changes the framing
format of tick events into a `dict[str, list[dict]]` wherein for each
tick "type" (eg. 'bid', 'ask', 'trade', 'asize'..etc) we create an FIFO
ordered `list` of events (data) and then pack this table into each
(throttled) send. This gives an additional implied downsample reduction
(in terms of iteration on the consumer side) from `N` tick-events to
a (max) `T` tick-types presuming the rx side only needs the latest tick
event.

Drop the `types: set` and adjust clearing event test to use the new
`ticks_by_type` map's keys.
2023-01-13 13:21:15 -05:00
Tyler Goodlet 715e693564 Improved clearing-tick-burst-oriented throttling
Instead of uniformly distributing the msg send rate for a given
aggregate subscription, choose to be more bursty around clearing ticks
so as to avoid saturating the consumer with L1 book updates and vs.
delivering real trade data as-fast-as-possible.

Presuming the consumer is in the "UI land of slow" (eg. modern display
frame rates) such an approach serves more useful for seeing "material
changes" in the market as-bursty-as-possible (i.e. more short lived fast
changes in last clearing price vs. many slower changes in the bid-ask
spread queues). Such an approach also lends better to multi-feed
overlays which in aggregate tend to scale linearly with the number of
feeds/overlays; centralization of bursty arrival rates allows for
a higher overall throttle rate if used cleverly with framing.
2023-01-13 13:21:15 -05:00
Tyler Goodlet 43717c92d9 Type annot-declare fsp-engine data `Feed` 2023-01-13 13:21:15 -05:00