Summary: Set up the infrastructure to add in Timeseries to the journal so that we can add in stats for the journal that relate to the whole process. For example, allow us to add in a truncatedRead TimeSeries easily as done in D16017968
Reviewed By: chadaustin
Differential Revision: D16461081
fbshipit-source-id: 964ff32e62aed0369da434793491b857c136b074
Summary:
Open source fb303 will not have getPid() or getCommandLine(), so
introduce a new method for Eden's tests.
Reviewed By: fanzeyi
Differential Revision: D16292993
fbshipit-source-id: 5cdc006ec0ee15f50a3e1cebe9b46a3ea275ff78
Summary: Added the cli command `eden stats object-store` for querying the counts on what part of the object store was responsible for finding the blob or blob size (local store or backing store). This will tell us how well local and in-memory caching works for different workflows.
Reviewed By: chadaustin
Differential Revision: D15934535
fbshipit-source-id: 70345f11a51c3c6996dc001d4101744395a3d182
Summary:
These allow the cli to setup and tear down mounts and
have the eden server keep track of them.
Reviewed By: strager
Differential Revision: D15707318
fbshipit-source-id: abdb8eaa28c8c67c8211a8af1647efe3a083e998
Summary:
Update the copyright & license headers in CMake files to reflect the
relicensing to GPLv2
Reviewed By: wez
Differential Revision: D15487079
fbshipit-source-id: 715e559464c19a0070d6e55a095b3fc7d61ad2f8
Summary:
Update the copyright & license headers in C++ files to reflect the
relicensing to GPLv2
Reviewed By: wez
Differential Revision: D15487078
fbshipit-source-id: 19f24c933a64ecad0d3a692d0f8d2a38b4194b1d
Summary:
Move the ConfigSource enum definition to a thrift file. This will let us
return ConfigSource values over thrift APIs in the future. This also allows
us to use thrift's `TEnumTraits` functionality to determine the maximum enum
value, rather than having to maintain a separate `kConfigSourceLastIndex`
variable.
As part of this change I also renamed the enum values to be CamelCase to match
our current C++ style recommendations and to avoid possibly conflicting with
macros defined in other headers (`DEFAULT` seemed particularly susceptible to
collision).
Reviewed By: strager
Differential Revision: D15572120
fbshipit-source-id: 8fbd03da221a9f75ef670dee1eb250eb198a5bd0
Summary: Developers should be encouraged to use Future-based functions instead of blocking functions in production code. Removing this blocking function makes it less convenient for developers to write blocking code in the future.
Reviewed By: strager
Differential Revision: D15564952
fbshipit-source-id: 3f62db472a59a6487ffe12e48c04178cad84ca61
Summary:
Add a helper class for creating an EdenServer in a unit test.
Most of our existing unit tests only create EdenMount objects, without a full
EdenServer. This new class will make it easier to write tests for
functionality that does require a full EdenServer object.
Reviewed By: chadaustin
Differential Revision: D15492166
fbshipit-source-id: f8b1ce3b78a1160a5d55d305e6bf4b5305cca509
Summary:
Some of our tests create Mercurial repositories with default settings
which means they don't support treemanifest. Flip treemanifest on for
them.
Reviewed By: wez
Differential Revision: D15302347
fbshipit-source-id: 34f98b88976b5de1bf2ad07c5272e217e3fe3b0a
Summary:
Rename the `ClientConfig` class to `CheckoutConfig`, to help further progress
on updating our terminology from "client" to "checkout".
Reviewed By: chadaustin
Differential Revision: D15162814
fbshipit-source-id: 3575958f1161d5842c6f0ee9e2d2d20ab20b7372
Summary:
beholdunittests
This enables some plumbing for running some of the
tests using the gtest/gmock machinery in cmake.
Part of this diff is removing the FindGMock.cmake file from the
eden repo; we now pull this in from the shared cmake library
that is populated by shipit.
Reviewed By: simpkins
Differential Revision: D14993344
fbshipit-source-id: 51caf9518c7f3a083a3b90cda10324c3a8170359
Summary:
on macOS `/var/tmp` is a symlink to `/private/var/tmp`
which means that our tests for path canonicalization end up
trying to compare the non-canonical `/var/tmp` prefix of the
temporary paths generated by the tests with `/private/var/tmp`
and failing.
Reviewed By: simpkins
Differential Revision: D14994584
fbshipit-source-id: e69addca8e315855d3ca87feb576ca7c54567c31
Summary:
Sandcastle's [1] code coverage builds compile EdenFS and Hg with Clang's -fprofile-generate flag (or a related flag). By default, running a program with with that flag creates a `default.profraw` file in the current directory. This causes some tests to fail, such as HgBackingStoreTest.getTreeForCommit_reimports_tree_if_it_was_deleted_after_import, because `default.profraw` is unintentionally committed to the test repo:
```
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from HgBackingStoreTest
[ RUN ] HgBackingStoreTest.getTreeForCommit_reimports_tree_if_it_was_deleted_after_import
eden/fs/store/hg/test/HgBackingStoreTest.cpp:64: Failure
Value of: tree1->getEntryNames()
Expected: has 2 elements where
element #0 is equal to foo,
element #1 is equal to src
Actual: { default.profraw, foo, src }, which has 3 elements
[ FAILED ] HgBackingStoreTest.getTreeForCommit_reimports_tree_if_it_was_deleted_after_import (1563 ms)
[----------] 1 test from HgBackingStoreTest (1563 ms total)
[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (1563 ms total)
[ PASSED ] 0 tests.
[ FAILED ] 1 test, listed below:
[ FAILED ] HgBackingStoreTest.getTreeForCommit_reimports_tree_if_it_was_deleted_after_import
```
When Sandcastle runs the tests, it sets the `LLVM_PROFILE_FILE` environment variable, which configures the path to `default.profraw`. EdenFS' HgRepo class is stripping this variable when invoking hg, so hg uses the default path and not the configured path.
Make HgRepo pass `LLVM_PROFILE_FILE` through to hg. This fixes some of EdenFS' tests when run by Sandcastle for code coverage purposes. (This does *not* fix running the tests manually (without setting `LLVM_PROFILE_FILE`), though.)
[1] Sandcastle is Facebook's continuous integration system.
Reviewed By: simpkins
Differential Revision: D15104832
fbshipit-source-id: 3929b9b0ab0904f2552ace7d8e4e4f4a4221192c
Summary:
The hg store implementation depends on Rust code that doesn't build on
mode/mac yet, but TestMount's dependency on hg was false anyway.
Reviewed By: simpkins
Differential Revision: D15001077
fbshipit-source-id: 840fdf565093ad7a6eb95e001a74ae95eecbf1db
Summary: These allow more tests to compile
Reviewed By: chadaustin
Differential Revision: D14994582
fbshipit-source-id: 6b2a0b276fda64c7f27e28ea9e6d548aaaa1db7c
Summary:
In future diffs, I will introduce some EdenMount tests which need to mock PrivHelper in more ways than are currently supported. For example, I want to mock PrivHelper::fuseUnmount and check how many times fuseUmount is called. Extend the existing MockMountDelegate and FakeFuseMountDelegate classes to support these to-be-written tests.
This diff should not change behavior.
Reviewed By: simpkins
Differential Revision: D14418206
fbshipit-source-id: a9b1257bb62d9a46fae0eef89c3fa42718bec142
Summary:
The systemctl command requires XDG_RUNTIME_DIR to be configured. If it's not configured, 'eden start' should pick a sane default. The sane default includes the user's UID (e.g. /run/user/6986). I want this default to be configurable via Eden's config files.
Expose the ${USER_ID} token to Eden configs. This will let administrators can customize XDG_RUNTIME_DIR's fallback value in the future.
Reviewed By: wez
Differential Revision: D13811732
fbshipit-source-id: 7933e078dd5f2b3bbbb0299730220a129c257256
Summary: We don't run this binary anymore, no reason to build and ship it.
Reviewed By: quark-zju
Differential Revision: D14437317
fbshipit-source-id: dd6da521783f18a2a518a7aa042be98950894e89
Summary:
In this change, we separate the low-level code that manipulates the overlay
into the FsOverlay class. The Overlay class makes use of the FsOverlay and
InodeMetaData table to support its Overlay interfaces. The FsOverlay class
is decoupled from the Overlay class, allowing other classes to manipulate
the overlay independently. We have a need for this in order to add
fsck to the c++ code base : described in T40728883.
Reviewed By: simpkins
Differential Revision: D14218281
fbshipit-source-id: 66c587f2b341579b8075ca5e5eeb4da6ffadf6f5
Summary:
I want manipulate a FakeFuseMountDelegate in a test, but FakeFuseMountDelegate is private to FakePrivHelper.cpp. Make FakeFuseMountDelegate usable outside FakePrivHelper.cpp by putting its declaration in FakePrivHelper.h.
This diff should not change behavior.
Reviewed By: simpkins
Differential Revision: D14319711
fbshipit-source-id: d7af18c316f63febe1d60f6e5aadcd4f4827cca5
Summary:
Update `EdenMount::initialize()` to perform a fault injection check. This
allows test code to inject delays and errors into the mount initialization
flow.
Reviewed By: strager
Differential Revision: D14079491
fbshipit-source-id: be80135b0833c8f0300104524473cc3e949fec34
Summary:
While moving code around in EdenMount::startFuse, EdenMount::shutdown, and EdenMount::destroy, I accidentally changed the result of EdenMount::getState in some circumstances. I noticed that we don't have any tests for EdenMount::getState, so it could have been broken even before my changes!
Write some tests for EdenMount::getState to verify the existing behavior and to prevent future regressions. Only add tests which pass with the current implementation; future diffs will fixe cases where EdenMount::getState returns the wrong value.
Reviewed By: chadaustin
Differential Revision: D14058334
fbshipit-source-id: 68b60ac92f94d336fcfb8f11e571379573bb3f42
Summary:
Some tests want to create a TestMount but don't care what files are in the mount. The following code is intuitively correct. However, TestMount's constructor takes a FakeTreeBuilder by non-const reference, so it fails to compile:
auto testMount = TestMount{FakeTreeBuilder{}};
The following code works, but more verbose:
auto builder = FakeTreeBuilder{};
auto testMount = TestMount{builder};
Overload TestMount's constructor to allow the former form in addition to the latter form. This neatly shrinks some test code.
This diff should not change behavior.
Reviewed By: chadaustin
Differential Revision: D14060110
fbshipit-source-id: c6a5d4b2c5859812efff279dedbc1fe690c8f8ad
Summary:
Make it easier to write tests involving a FakeFuse-mounted EdenMount by creating the TestMount::startFuseAndWait function which initializes EdenMount.
This diff should not change behavior.
Reviewed By: chadaustin
Differential Revision: D14059808
fbshipit-source-id: ce63bbce7f2c6e710910ad530aa1b4efefe80272
Summary:
I want to test EdenMount::startFuse when PrivHelper::fuseMount fails. FakePrivHelper makes this inconvenient. Extend FakePrivHelper so a test can execute arbitrary code for fuseMount calls.
This diff should not change behavior.
Reviewed By: chadaustin
Differential Revision: D14058663
fbshipit-source-id: 27ff32a75adde8aff952ac50b3f1977cf0b59e93
Summary:
Calls to ObjectStore::create and EdenMount::create are duplicated in the various TestMount::initialize overloads. Fix the duplication by moving the two calls into their own function.
This diff should not change behavior.
Reviewed By: chadaustin
Differential Revision: D14058972
fbshipit-source-id: b3e79756793292b59f09f53c05649a637c8af07e
Summary:
Replace Future::onError with Future::thenError:
* to remove ambiguous typing
* to ensure that the executor is not lost and the returned Future is still bound to an executor
See:
https://fb.workplace.com/groups/fbcode/permalink/2002251863144976/
for details.
Reviewed By: yfeldblum
Differential Revision: D13784772
fbshipit-source-id: 1d3ede848b7d31c7a197a21b4ff2b31e840040a5
Summary:
In the future, we will likely coalesce redundant fetches at the
BlobAccess/ObjectStore layer. To measure what we actually want,
populate a normal ObjectStore with a NullLocalStore and add counters
to FakeBackingStore.
Reviewed By: wez
Differential Revision: D13454331
fbshipit-source-id: 2fbf393d159f94e84c24ac53ccc207162fa754b7
Summary:
There's nothing nice about this; the full set of kernel headers are
not installed with the binary distribution, and since the kernel distribution
has to be signed to be loaded on osx, there's no benefit to us building it
for ourselves.
This diff adds a nop builder and tweaks the cmake to point into the osxfuse
repo.
The osxfuse repo aggregates a couple of related repos using the git
submodule feature, so trigger that from getdeps.py too.
Reviewed By: strager
Differential Revision: D13480148
fbshipit-source-id: 84e09a86f6a83f83ffd1e3fe113dc7b15b3ea208
Summary:
Update the Hash constructors that accept a `ByteRange` and a `StringPiece` to
be `constexpr` so that all Hash constructors are now `constexpr`.
This probably shouldn't really make a big difference in practice. I added
this since I wanted to define some static `Hash` constants in some tests, and
didn't want to worry about SIOF issues.
Reviewed By: chadaustin
Differential Revision: D13475781
fbshipit-source-id: fc1ce91c998f1badadbd6becd525458c25dd30de
Summary:
Drop interest in cached blobs at various points in the FileInode
lifecycle.
Reviewed By: strager
Differential Revision: D12991762
fbshipit-source-id: 19fd94938c96485160d547ecbd259ffeb39b2341
Summary:
FUSE_NO_OPEN_SUPPORT is better than ATOMIC_O_TRUNC for Eden's use
case. Remove the code that pretended we might support ATOMIC_O_TRUNC
again someday.
(Note: this ignores all push blocking failures!)
Reviewed By: strager
Differential Revision: D13163382
fbshipit-source-id: 948d701571a8d2977da3d2532fdc9538c5011636
Summary:
FileInode no longer has a strong reference to a blob. Instead, all accesses go through the blob cache. This diff changes the caching behavior for blobs.
The previous behavior was:
When a file's contents are needed in any way, the blob is loaded and referenced by the inode. When the number of open file handles goes to zero, the blob is dropped. The blob is also dropped when the inode is unloaded. Future inode loads or open requests, in that situation, require the blob to be reloaded from the LocalStore.
The new behavior is:
When a file's contents are needed, the blob is loaded and stored into the BlobCache, evicting any if necessary. Future blob requests are satisfied from the BlobCache, pushing it to the back of the eviction queue. When the inode is materialized or unloaded, the blob will be evicted from cache if no other blob has interest in it.
(Note: this ignores all push blocking failures!)
Reviewed By: strager
Differential Revision: D12813912
fbshipit-source-id: 20d20807d2e4a6c37cddab38562fdb7456316aac
Summary:
A later diff needed a constant for the SHA-1 of an empty buffer. While
I'm at it, I made Hash a little bit nicer to use.
Reviewed By: strager
Differential Revision: D13224195
fbshipit-source-id: b2fb1437be042215b5b398a8c7fc9fc5dd115e9e
Summary: Instantiate a blob cache in the EdenServer with configurable settings.
Reviewed By: strager
Differential Revision: D12813880
fbshipit-source-id: 8ccc89826f04aca78964230374dea48abf05e05e
Summary: In support of making Eden's file access stateless, add a facade that connects the BlobCache and ObjectStore, allowing FileInode to fetch blobs, minimizing reloads and memory usage.
Reviewed By: strager
Differential Revision: D10850143
fbshipit-source-id: 4307f7c1143aecad1284ea3cadf3e4efca9a3925
Summary:
The new blob cache wants to know, given a request, whether the blob is
expected to be needed or not. The answer, in general, is yes if the
request came from Thrift and no if it came from FUSE, because the kernel
will cache the result of the request in its own page and dentry caches.
Propagate this information through FileInode.
Reviewed By: strager
Differential Revision: D12813838
fbshipit-source-id: 7a359686149cd4daff41630c94085b680c448c4f
Summary:
Update all of the C++ unit tests that create temporary files and directories
to use the new `facebook::eden::makeTempFile()` and
`facebook::eden::makeTempDir()` functions.
Note that this likely changes the behavior of some code paths in meaningful
ways: `/dev/shm` normally does not support `getxattr()`, and Eden's overlay
code attempts to store the SHA-1 for materialized files as using extended
attributes. This means that the tests will now typically hit the fallback
code path and will not store SHA-1 data in the overlay.
Reviewed By: chadaustin, strager
Differential Revision: D12971162
fbshipit-source-id: 6cc5eba2e04be7e9a13a30e90883feadfb78f9ce
Summary:
Add new helper files for creating temporary files and directories.
The main advantage of these functions is that they prefer creating files in
`/dev/shm` by default instead of `/tmp`. Some of the eden unit tests are
fairly I/O intensive (particularly the checkout tests, which create and
destroy many test mounts). This can be quite slow on hosts where `/tmp` is a
a spinning hard disk. Putting the temporary files in a ramdisk greatly speeds
up the tests in this case.
These test functions also default to using the prefix `eden_test.` for the
temporary file names.
This does not yet change any of the test code to use these functions. I will
do that in a subsequent diff.
Reviewed By: chadaustin, strager
Differential Revision: D12971161
fbshipit-source-id: 3f74be7a467e8080185d4d97d114288b4528755a
Summary:
Sandcastle has several cases where we chown the entire
repository which performs terribly on Eden. As a workaround we have a
command to do this in eden without loading all the files.
Reviewed By: chadaustin
Differential Revision: D12857956
fbshipit-source-id: 36cebcc710fbcf4e1eb265df901513cf50a227b9
Summary:
Because Mercurial blob IDs change without the contents changing, and
because files get unloaded upon checkout, rebasing across a large
distance in history can result in status fetching a lot of
metadata. Keep a smallish LRU cache for SHA-1 and size by blob ID.
Reviewed By: strager
Differential Revision: D10419965
fbshipit-source-id: 81499573814775471913db05f924767c3bab300e
Summary:
Update the Eden unit tests and integration tests to set the `NOSCMLOG`
environment variable when running `hg` commands. This ensures that our
mercurial telemetry wrapper does not log events from Eden test runs.
Reviewed By: quark-zju, strager
Differential Revision: D9893096
fbshipit-source-id: c0dd4b5eb042dcb5e9493c89aaee10a513022bae
Summary:
unloadChildrenNow would only unload files or trees at the leaf. Apply
the fixes from D8302998 to unloadChildrenNow, which is only called
during takeover.
Reviewed By: strager
Differential Revision: D9774970
fbshipit-source-id: c2f4d1e6b838cc3b9e99eb8786114e643128a519
Summary: Begin tracking pids passed into FUSE in the ProcessAccessLog.
Reviewed By: strager
Differential Revision: D9595795
fbshipit-source-id: 02e5fefebcd0de860274409ba6258f14fa050b55
Summary:
Overall plan to modify Future<T>::then to be r-value qualified and use Future<T>::thenTry or Future<T>::thenValue.
The goal is to disambiguate folly::Future and to improve type and lifetime safety of Future and its methods.
Codemod:
* future<T>.then(callable with operator()(not-a-try)) to future<T>.thenValue(callable with operator()(not-a-try)).
* future<T>.then(callable with operator()()) to future<T>.thenValue(callable with operator()(auto&&)).
* future<T>.then(callable with operator()(auto)) to future<T>.thenValue(callable with operator()(auto)).
Reviewed By: yfeldblum
Differential Revision: D9512177
fbshipit-source-id: daa3581611dcd9f32d9314bae1c5fa0f966613f3
