Summary:
Knowing the prepushrebase changeset id is required for retroactive_review.
retroactive_review checks landed commits, but verify_integrity hook runs on a commit before landing. This way the landed commit has no straightforward connection with the original one and retroactive_review can't acknowledge if verify_integrity have seen it.
Reviewed By: krallin
Differential Revision: D27911317
fbshipit-source-id: f7bb0cfbd54fa6ad2ed27fb9d4d67b9f087879f1
Summary:
Update the zstd crates.
This also patches async-compression crate to point at my fork until upstream PR https://github.com/Nemo157/async-compression/pull/117 to update to zstd 1.4.9 can land.
Reviewed By: jsgf, dtolnay
Differential Revision: D27942174
fbshipit-source-id: 26e604d71417e6910a02ec27142c3a16ea516c2b
Summary:
This updates the bookmarks cache TTL to be something we configure using
tunables instead of repo configs. There's a few goals here:
- Less us tune the pressure we put on SQL via a tunable
- Letting us experiment more easily with disabling this cache and tuning the
WBC poll interval.
Right now, this defaults to what we had set up in all our repo configs, which
is 2000ms.
Reviewed By: farnz
Differential Revision: D27915403
fbshipit-source-id: 4361d38939e5b2a0fe37442ed8c1dd0611af5098
Summary:
Previously we were always caching bookmarks, but D27323369 (f902acfcd1) accidentally remove
that. Let's add it back
Reviewed By: krallin
Differential Revision: D27859523
fbshipit-source-id: 8137c838fc56ecbbc64ba139d4a590dccd011bbc
Summary:
Like it says in the title, this includes rendezvous into changesets. This is
our busiest connection by far, and it is often hitting the limits of our
connection pool: https://fburl.com/ods/kuq5x1vw
Reviewed By: markbt
Differential Revision: D27794574
fbshipit-source-id: e2574ce003f12f6c9ecafd0079fe5194cc63c24b
Summary:
After doing some local benchmarking (using MononokeApi instantiation as the
benchmark), one thing that's apparent is that we have quite a few parameters
here and that tuning them is likely to be a challenge.
One parameter in particular is the batch "objective", which controls how many
requests we want to see in the last batching interval before we choose to
batch (this is `rendezvous_dispatch_min_threshold`).
The problem with this is this is that there is no good, real-world, metric to
set it based on. This in contrast to the other parameters we have, which do
have some reasonable metric to compare to:
- rendezvous_dispatch_delay_ms: this is overhead we add to queries, so it
should be small & on the order of query execution latency (i.e. a few ms).
- rendezvous_dispatch_max_threshold: this controls how big our batches get, so
it should be on the order of what makes a SQL query too big (i.e. less than
a hundred records).
In contrast, we want to set `rendezvous_dispatch_min_threshold` such that
batching kicks in before we start using too many concurrent connections (which
is what query batching seeks to reduce), but the problem is that those two
numbers aren't directly connected. One clear problem, for example, is that if
our DB is in-region vs. out of-region, then for a given query execution time,
and a desired concurrency level before batching kicks in, we'd need different
values of `rendezvous_dispatch_min_threshold` (it would have to kick in faster
for the out-of-region workload).
So, this diff updates rendez vou to actually track concurrent connection count
before we force batching. This is the actual metric we care about here, and it
has a pretty natural "real world" values we can look at to decide where to set
it (our connection pool — which is limited at 100 concurrent connections —, and
our open connection baseline).
Note: I set this at 5 because that's more or less what servers look like
outside of spikes for Bonsai hg mapping, and of Changesets where I'm planning to
introduce this in the future:
- bonsai: https://fburl.com/ods/6d4a9qb5
- changesets: https://fburl.com/ods/kuq5x1vw (note: to make sense of this,
focus on just one server, otherwise the constnat spikes we get sort of hide
the big picture).
Reviewed By: farnz
Differential Revision: D27792603
fbshipit-source-id: 1a9189f6b50d48444b3373bd1cb14dc51b85a6d2
Summary:
There is a very frustrating operation that happens often when working on the
Mononoke code base:
- You want to add a flag
- You want to consume it in the repo somewhere
Unfortunately, when we need to do this, we end up having to thread this from a
million places and parse it out in every single main() we have.
This is a mess, and it results in every single Mononoke binary starting with
heaps of useless boilerplate:
```
let matches = app.get_matches();
let (caching, logger, mut runtime) = matches.init_mononoke(fb)?;
let config_store = args::init_config_store(fb, &logger, &matches)?;
let mysql_options = args::parse_mysql_options(&matches);
let blobstore_options = args::parse_blobstore_options(&matches)?;
let readonly_storage = args::parse_readonly_storage(&matches);
```
So, this diff updates us to just use MononokeEnvironment directly in
RepoFactory, which means none of that has to happen: we can now add a flag,
parse it into MononokeEnvironment, and get going.
While we're at it, we can also remove blobstore options and all that jazz from
MononokeApiEnvironment since now it's there in the underlying RepoFactory.
Reviewed By: HarveyHunt
Differential Revision: D27767700
fbshipit-source-id: e1e359bf403b4d3d7b36e5f670aa1a7dd4f1d209
Summary:
ScrubOptions normally represents options we parsed from the CLI, but right now
we abuse this a little bit to throw a ScrubHandler into them, which we
sometimes mutate before using this config.
In this stack, I'm unifying how we pass configs to RepoFactory, and this little
exception doesn't really fit. So, let's change this up, and make ScrubHandler
something you may give the RepoFactory if you're so inclined.
Reviewed By: HarveyHunt
Differential Revision: D27767699
fbshipit-source-id: fd38bf47eeb723ec7d62f8d34e706d8581a38c43
Summary: Add a way for users of `RepoFactory` to customize the blobstore that repos use.
Reviewed By: krallin
Differential Revision: D27400615
fbshipit-source-id: e3e515756c56dc78b8de8cf7b929109d05cec243
Summary:
Remove the dependency on blobrepo factory by defining a custom facet factory
for benchmark repositories.
Reviewed By: krallin
Differential Revision: D27400618
fbshipit-source-id: 626e19f09914545fb72053d91635635b2bfb6e51
Summary: Use the equivalent function from `repo_factory`.
Reviewed By: krallin
Differential Revision: D27363470
fbshipit-source-id: dce3cf843174caa2f9ef7083409e7935749be4cd
Summary:
Add a factory for building development and production repositories.
This factory can be re-used to build many repositories, and they will share
metadata database factories and blobstores if their configs match.
Similarly, the factory will only load redacted blobs once per metadata
database config, rather than once per repo.
Reviewed By: krallin
Differential Revision: D27323369
fbshipit-source-id: 951f7343af97f5e507b76fb822ad2e66f4d8f3bd
Summary:
`RendezVousConnection::new` can block for some time doing work on the CPU,
specifically creating the stats objects. This causes problems for other
futures during repo construction.
Instead, move rendez-vous construction to a `spawn_blocking` closure, so that
it doesn't interfere with the other futures.
Since `SqlBonsaiHgMapping::from_sql_connections` is not async, and is part of
the SqlConstruct trait, we must convert this to the builder pattern so that we
can defer rendez-vous construction to later on.
Reviewed By: farnz
Differential Revision: D27501915
fbshipit-source-id: 9c58c32411301128424985deeab127d052c43532
Summary:
Remove uses of dangerous_override from derived data tests.
These were being used to override the derived data config or the lease object.
Extend the factory to allow customization of the config or the lease object,
and use that instead.
Reviewed By: StanislavGlebik
Differential Revision: D27169438
fbshipit-source-id: e8d0be248391d02bb054e19fdb9a90005db09c84
Summary:
Remove uses of dangerous_override in the commit rewriting tests.
Previously, the test was using dangerous_override to replace the bookmarks
attributes with ones that share a backing database with a `SqlMutableCounters`
instance.
With TestRepoFactory, all attributes share one metadata database. Obtain that
from the factory and use it to initialize the `SqlMutableCounters` instance.
Reviewed By: StanislavGlebik
Differential Revision: D27169429
fbshipit-source-id: 3c1b285db38a96deca7029d37e6692cb49356d31
Summary:
Create a factory that can be used to build repositories in tests.
The test repo factory will be kept in a separate crate to the production repo factory, so that it can depend on a smaller set of dependencies: just those needed for in-memory test repos. This should eventually help make compilation speeds faster for tests.
A notable difference between the test repos produced by this factory and the ones produced by `blobrepo_factory` is that the new repos share the in-memory metadata database. This is closer to what we use in production, and in a couple of places it is relied upon and existing tests must use `dangerous_override` to make it happen.
Reviewed By: ahornby
Differential Revision: D27169441
fbshipit-source-id: 82541a2ae71746f5e3b1a2a8a19c46bf29dd261c
