Summary:
Recently I found that its impossible to access elevated Watchman daemon from non-elevated process on Windows.
```
events.js:174
throw er; // Unhandled 'error' event
^
Error: connect EPERM \\.\pipe\watchman
at PipeConnectWrap.afterConnect [as oncomplete] (net.js:1106:14)
Emitted 'error' event at:
at Socket.<anonymous> (C:\open\ovrsource\unity\socialvr\_js\node_modules\fb-watchman\index.js:118:12)
at Socket.emit (events.js:198:13)
at emitErrorNT (internal/streams/destroy.js:91:8)
at emitErrorAndCloseNT (internal/streams/destroy.js:59:3)
at process._tickCallback (internal/process/next_tick.js:63:19)
```
To fix this, it was suggested by wez to use [his library](https://github.com/wez/EleDo) to force Watchman daemon always start in normal mode on Windows. In this stack of commits I did integrated his library into project and used it to force daemon restart in normal mode when spawned from elevated terminal.
To make it happen, I checked-in library sources and created proxy project which depends on the initial library and contains header bindings and cmake configuration. I did copy pasted Rust cmake macroses from another facebook project - eden, and also created analogue of autogen.sh but for Windows - autogen.cmd.
Pull Request resolved: https://github.com/facebook/watchman/pull/878
Test Plan:
Launch elevated terminal
Start watchman.exe produced from sources
Observe daemon starting and answering
In process monitor, observe watchman.exe process running under user group
Reviewed By: fanzeyi
Differential Revision: D25595879
Pulled By: arhelmus
fbshipit-source-id: 15eb29adcf5bd4a5708b6533a1b2bacbf13f431c
Summary:
Some code paths use (expensive) snapshot to be compatible with `Arc::ptr_eq`
compatibility check. With `VerLink` it's more efficient to use `VerLink`
directly. This is potentially more efficient for `VerLink` too because the
`Arc` won't be cloned unnecessarily and `VerLink::bump()` is more likely to
use its optimized path.
Reviewed By: sfilipco
Differential Revision: D25608200
fbshipit-source-id: 1b3ecc5d7ec5d495bdda22d66025bb812f3d68a0
Summary:
Similar to the previous change. `VerLink` tracks compatibility more accurately.
- No false positives comparing to the current `map_id` approach.
- Less false negatives comparing to the previous `Arc::ptr_eq` approach.
The `map_id` is kept for debugging purpose.
Reviewed By: sfilipco
Differential Revision: D25607513
fbshipit-source-id: 7d7c7e3d49f707a584142aaaf0a98cfd3a9b5fe8
Summary:
Previously, snapshots need to be invalidated manually. That is error-prone.
For example, `import_clone_data` forgot to call `invalidate_snapshot`.
With `VerLink`, it's easy to check if snapshot is up-to-date. So let's just
use that and remove the need of invalidating manually.
`invalidate_snapshot` is still useful to drop `version` in `snapshot` so
`VerLink::bump` might be more efficient. Forgetting about it no longer affects
correctness.
Reviewed By: sfilipco
Differential Revision: D25607514
fbshipit-source-id: 5efb489cda1d4875bcd274c5a197948f67101dc1
Summary:
`VerLink` tracks compatibility more accurately.
- No false positives comparing to the current `dag_id` approach.
- Less false negatives comparing to the previous `Arc::ptr_eq` approach.
The `dag_id` is kept for debugging purpose.
Note: By the current implementation, `dag.flush()` will make `dag`
incompatible from its previous state. This is somewhat expected, as
`flush` might pick up any changes on the filesystem, reassign non-master. Those
can be actually incompatible. This might be improved in the future to detect
reload changes by using some extra information.
Reviewed By: sfilipco
Differential Revision: D25607511
fbshipit-source-id: 3cfc97610504813a3e5bb32ec19a90495551fd3a
Summary:
There are 2 kinds of changes:
- Append-only changes. It is backwards-compatible.
- Non-append-only changes. It is not backwards-compatible.
Previously,
- `Arc::ptr_eq` on snapshot is too fragile. It treats append-only compatible
changes as incompatible.
- Even worse, because of wrapper types (ex. `Arc::new(Arc::new(dag))` is
different from `dag`), even a same underlying struct can be treated as
incompatible.
- `(map|dag)_id` is too rough. It treats incompatible non-append-only changes
as compatible.
Add `VerLink` to track those 2 different kinds of changes. It basically keeps a
(cheap) tree so backwards compatible changes will be detected precisely.
`VerLink` will replace IdMap and Dag compatibility checks.
Reviewed By: sfilipco
Differential Revision: D25607512
fbshipit-source-id: 478f81deee4d2494b56491ec4a851154ab7ae52d
Summary: This makes it easier to investigate fast path issues.
Reviewed By: sfilipco
Differential Revision: D25598077
fbshipit-source-id: 27b7042fb9510321c25371f8c5d134e248b3d5d5
Summary:
This makes it easier to check if set operations are using fast paths or not by
setting `RUST_LOG=dag=debug`.
Reviewed By: sfilipco
Differential Revision: D25598075
fbshipit-source-id: 1503a195268c0989d5166596f2c8a66e15201372
Summary:
See the previous diff for context. The new API will be used to check if two
dags are compatible.
Note: It can cause false positive on compatibility checks, which need a
more complex solution. See D25607513 in this stack.
Reviewed By: sfilipco
Differential Revision: D25598079
fbshipit-source-id: f5fc9c03d73b42fadb931038fe2e078881be955f
Summary: The backend is designed to be used by the "debugsegmentclone" command, which does not write revlog.
Reviewed By: sfilipco
Differential Revision: D25624786
fbshipit-source-id: e145128c7b41d78fed495f8da540169f741b674d
Summary: This makes it possible to add new commits in a repo without revlog.
Reviewed By: sfilipco
Differential Revision: D25602527
fbshipit-source-id: 56c27a5f00307bcf35efa4517c7664a865c47a43
Summary:
HowToEven believes that both path and manifestNode might be used after being
moved and thus complains about it as that's often what is intended. However,
in C++17, this lint is spurious as both of these variables will be moved after
being copied properly in the first lambda. To silence the linter, let's just
split the combinator chain in 2.
Reviewed By: genevievehelsel
Differential Revision: D25627413
fbshipit-source-id: 1a93ca039310dfd04a3f11bd9c7de32e93057517
Summary: Because mysql connection pool options had both `conflicts_with(myrouter)` and default values, the binary always failed if myrouter option was provided.
Differential Revision: D25639679
fbshipit-source-id: 21ebf483d4ee88a05db519a14b7e2561b3089ad1
Summary:
When running `python3 run-tests.py test-run-tests.py`, some bytes were printed
with `b` prefix. Convert them to `str`.
Reviewed By: DurhamG
Differential Revision: D25642164
fbshipit-source-id: f1103b24ad88d0d024f6be546bf632141f06ebd1
Summary:
A bit of history first. For some time we had a problem in our cross repo sync
library where it used the "current" commit sync version, where "current" meant
"the latest commit sync config version that was added". That was incorrect, and
we migrated away from this model, however there were still a few places that
used get_current_mover_DEPRECATED() mover.
Removing this method from a test file is easy, but it's trickier for
sync_diamond_merge tool. This tool is used to sync a diamond merge from a small
repo to a large repo (this is non-trivial to do, so we don't do it
automatically). To make things simpler this diff requires all involved commits
(i.e. both parents, where to rebase (onto) and root of the diamond merge) to
have the same commit sync config versions.
Reviewed By: markbt
Differential Revision: D25612492
fbshipit-source-id: 6483eed9698551920fb1cf240218db7b7e78f7bd
Summary:
The warning will go to debug level logs if the delay is not reached.
The messages about the locks make profoundly bad effect on attitude to commit cloud even if the delay is just 1 second (that is a reasonable delay).
Reviewed By: quark-zju
Differential Revision: D25587459
fbshipit-source-id: 9a09484d590ba04d17a881e0c9c5d543686b934f
Summary:
The correct workflow for using a multi-threaded connection pool for multiple DBs is to have a single shared pool for all the use-cases. The pool is smart enough to maintain separate "pools" for each DB locator and limit them to maximum 100 conn per key.
In this diff I create a `OnceCell` connection pool that is initialized once and reused for every attempt to connect to the DB.
The pool is stored in `MononokeAppData` in order to bind its lifetime to the lifetime of Mononoke app. Then it is passed down as a part of `MysqlOptions`. Unfortunately this makes `MysqlOptions` not copyable, so the diff also contains lots of "clones".
Reviewed By: ahornby
Differential Revision: D25055819
fbshipit-source-id: 21f7d4a89e657fc9f91bf22c56c6a7172fb76ee8
Summary:
In the next diff I'm going to add Mysql connection object to `MysqlOptions` in order to pass it down from `MononokeAppData` to the code that works with sql.
This change will make MysqlOptions un-copyable.
This diff fixed all issues produced by the change.
Reviewed By: ahornby
Differential Revision: D25590772
fbshipit-source-id: 440ae5cba3d49ee6ccd2ff39a93829bcd14bb3f1
Summary:
benchmark_filestore XDB subcommands uses mysql and has option of using either myrouter or mysql. In this diff I used `args::parse_mysql_options` function to parse the arguments instead of manual processing and get a `MysqlOptions` object.
This is needed later to pass a connection pool object through the `MysqlOptions` struct (see the next diff).
Reviewed By: ahornby
Differential Revision: D25587898
fbshipit-source-id: 66fcfd98ad8f3f9e285ca9635d8f625aa680d7ff
Summary:
This package will be used by chronos job on regular basis. It will spawn legocastle jobs for each of backup repos, pull them in together with origin repo from production tier and compare hashes of commits.
`fbpkg.builder` allows to create package and add it to contbuild together with creating a binary.
`https://www.internalfb.com/intern/wiki/Fbpkg/fbpkg.builder/#overview`
Reviewed By: HarveyHunt
Differential Revision: D25573914
fbshipit-source-id: 3f7ff3a6b2d7acefed46683122b72c5bc862e1aa
Summary:
Like it says in the title. This is nice to do because we had old futures
wrapping new futures here, so this lets us get rid of a lot of cruft.
Reviewed By: ahornby
Differential Revision: D25502648
fbshipit-source-id: a34973b32880d859b25dcb6dc455c42eec4c2f94
Summary:
This was kinda almost done. Might as well finish it by updating what's left,
i.e. the tests.
Reviewed By: ahornby
Differential Revision: D25498799
fbshipit-source-id: 65b7b144f5cf86d5f1754f5c7dafe373173b5ece
Summary: Let's not spawn too many futures at once
Reviewed By: markbt
Differential Revision: D25612069
fbshipit-source-id: e48901b981b437f66573a1abfba08eb144af2377
Summary: Forgot to add them when I wrote the test. Let me add tem now
Differential Revision: D25611802
fbshipit-source-id: 0db7bee2034ad6e1566c5eb6de2e80e18140d757
Summary: Convert all BlobRepoHg methods to new type futures
Reviewed By: StanislavGlebik
Differential Revision: D25471540
fbshipit-source-id: c8e99509d39d0e081d082097cbd9dbfca431637e
Summary:
configs.allowedlocations restricts what configs can be loaded to a
certain set of files. This will enable us to deprecate all old config locations.
This diff adds Python support and a high level test.
Reviewed By: quark-zju
Differential Revision: D25539736
fbshipit-source-id: fa2544379b65672227e0d9cf08dad7016d6bbac8
