Summary: A little step towards asyncifying the filestore. This is just mechanical, without removing clones. TBD: add a diff, which starts to actually use the benefits of new futures.
Reviewed By: farnz
Differential Revision: D20534272
fbshipit-source-id: a038e6f22b666f3f2c9782ee25c0c2582ddced6c
Summary: This makes thigs a little more readable.
Reviewed By: krallin
Differential Revision: D20515645
fbshipit-source-id: ae04e18b0f415353431a995ae22844f6e301780c
Summary:
This is going to be used in D20469131, but in a nutshell the idea is to
perform as many checks as possible before actually doing the rechunking.
This way we can avoid churning through the entire blobstore.
Reviewed By: krallin
Differential Revision: D20491189
fbshipit-source-id: 4f7c2a8e02c890db789d25aa819b5c91d08ea7be
Summary:
This updates the store_bytes method to chunk incoming data instead of uploading
it as-is. This is unfortunately a bit hacky (but so was the previous
implementation), since it means we have to hash the data before it has gone
through the Filestore's preparation.
That said, one of the invariants of the filestore is that chunk size shouldn't
affect the Content ID (and there is fairly extensive test coverage for this),
so, notionally, this does work.
Performance-wise, it does mean we are hashing the object twice. That actually
was the case before as well anyway (since obtain the ContentId for FileContents
would clone them then hash them).
The upshot of this change is that large files uploaded through unbundle will
actually be chunked (whereas before, they wouldn't be).
Long-term, we should try and delete this method, as it is quite unsavory to
begin with. But, for now, we don't really have a choice since our content
upload path does rely on its existence.
Reviewed By: StanislavGlebik
Differential Revision: D20281937
fbshipit-source-id: 78d584b2f9eea6996dd1d4acbbadc10c9049a408
Summary:
This is a very small struct (2 u64s) that really doesn't need to be passed by
reference. Might as well just pass it by value.
Differential Revision: D20281936
fbshipit-source-id: 2cc64c8ab6e99ee50b2e493eff61ea34d6eb54c1
Summary:
The Bytes 0.5 update left us in a somewhat undesirable position where every
access to our blobstore incurs an extra copy whenever we fetch data out of our
cache (by turning it from Bytes 0.5 into Bytes 0.4) — we also have quite a few
place where we convert in one direction then immediately into the other.
Internally, we can start using Bytes 0.5 now. For example, this is useful when
pulling data out of our blobstore and deserializing as Thrift (or conversely,
when serializing and putting it into our blobstore).
However, when we interface with Tokio (i.e. decoders & encoders), we still have
to use Bytes 0.4. So, when needed, we convert our Bytes 0.5 to 0.4 there.
The tradeoff idea is that we deal with more bytes internally than we end up
sending to clients, so doing the Bytes conversion closer to the point of
sending data to clients means less copies.
We can also start removing those once we migrate to Tokio 0.2 (and newer
versions of Hyper for HTTP services).
Changes that were required:
- You can't extend new bytes (because that implicitly copies). You need to use
BytesMut instead, which I did where that was necessary (I also added calls in
the Filestore to do that efficiently).
- You can't create bytes from a `&'a [u8]`, unless `'a` is `'static`. You need
to use `copy_from_slice` instead.
- `slice_to` and `slice_from` have been replaced by a `slice()` function that
takes ranges.
Reviewed By: StanislavGlebik
Differential Revision: D20121350
fbshipit-source-id: eb31af2051fd8c9d31c69b502e2f6f1ce2190cb1
Summary: Add hash::GitSha1 as a pure hash-only key for git Aliases, so one no longer needs to know the size or type to load by Alias::GitSha1.
Reviewed By: krallin
Differential Revision: D19903578
fbshipit-source-id: bf919b197da2976bf31073ef04d12e0edfce0f9b
Summary:
Rename GitSha1 to RichGitSha1 in preparation for introducing hash::GitSha1 as a pure sha1 without extra fields in next in stack.
Motivation for this is that currently one can't load content aliased by Alias::GitSha1 give just the hash, one has to know the type and size as well.
Once the next couple stack are done we will be able to load via just the git hash.
Reviewed By: krallin
Differential Revision: D19903280
fbshipit-source-id: ab2b8b841206a550c45b1e7f16ad83bfef0c2094
Summary:
This commit manually synchronizes the internal move of
fbcode/scm/mononoke under fbcode/eden/mononoke which couldn't be
performed by ShipIt automatically.
Reviewed By: StanislavGlebik
Differential Revision: D19722832
fbshipit-source-id: 52fbc8bc42a8940b39872dfb8b00ce9c0f6b0800
