Summary:
When determining the contexts to compare trees against, consider all parents
of the missing nodes that aren't themselves missing.
In the case of:
```
C
/ \
D B
|
A
```
Where A and D are common and B and C are missing, the parents of the roots
are only A, which means D's tree will not be compared against and all of its
trees will be included.
Reviewed By: StanislavGlebik
Differential Revision: D14798681
fbshipit-source-id: c80add907338a3011daf54a2304ea19415b7f9fb
Summary:
Now that we have perftracing infra, let's trace a bunch of likely
problem spots.
Reviewed By: sfilipco
Differential Revision: D14426367
fbshipit-source-id: 354a241aa9ac5d75d34062a9838d581b4f46746f
Summary:
Most of the repacks are background repacks, and most of the complaints are
coming from laptops users. Thanks to the rust repack, most of time during
repack is now spent in repacking loosefiles. While repacking them is expensive,
testing whether data is in a loosefile and obtaining it is actually pretty
fast. Packfiles have the opposite issue, repacking them is fast, but finding
data in them may be expensive if a lot of them are present.
Based on this, it makes sense to repack packfiles more frequently than
loosefiles. At first, the newly added option will be used to turn-off loosefile
repack for laptop users. A less frequent loosefile repack will be implemented
in a later patch.
Reviewed By: DurhamG
Differential Revision: D14586986
fbshipit-source-id: 5bc5c839cf8d2d78bcc4ffa016bbe3cf1b2ef3f7
Summary: Log data about round-trip count, and object count for files, trees, and SSH calls.
Differential Revision: D14515776
fbshipit-source-id: cce416fd7dccdad3c73a9f1751a04ddac0d2c507
Summary:
If an infinitepush bundle contains flat manifests and is served from a
treemanifest repository, it can potentially fail to send all the needed data to
the client.
Understanding the bug requires two bits of context:
1. When sending commits from a tree server to a tree client, we generally don't
send any trees because they can be fetched by the client ondemand later. The one
exception to this is for infinitepush bundles, where the trees inside the bundle
cannot be served ondemand, and therefore must be served at pull time. To do this
we check if a given manifest node exists in the repositories permanent storage,
and if it doesn't, we assume it came from an infinitepush bundle and serve it
with the pull.
2. When we lookup a manifest and fail to find a tree, our last resort is the
ondemandstore which knows how to convert a flat manifest into a tree manifest.
On the server, this is responsible for converting each of the flat bundle's
manifests into treemanifests before we serve the bundle to the client. As part
of converting the flat manifests into treemanifests, it writes the new tree
data into a pack file.
The bug is then, when serving a stack of commits, if we try to package up the
top tree first (i.e. the most recent tree), we end up converting the entire
stack from flat into trees, which inserts the bottom most trees into the
temporary pack file. Because they exist in the temporary pack file, when we
later check if they are part of the repositories store we end up finding them,
which causes us to treat them as not-infinitepush-trees which means we don't
serve them to the client.
The fix is to change the infinitepush tree-serving code to not consider the
mutable packs when checking if it should send trees.
Reviewed By: mitrandir77
Differential Revision: D14403925
fbshipit-source-id: 38043dfc49df5ff9ea2fae1d3cac341c4936509c
Summary: These 2 commands were broken when treemanifest.treeonly=True was set
Reviewed By: DurhamG
Differential Revision: D14316779
fbshipit-source-id: e626df41c92036fa3bd61c072f09b0d6c99c6f9f
Summary:
Treemanifest uses it's own fallbackpath for reads in all cases, but
particularly in the case of remotenames it should stay on the path that is
actively being used by the push. It is possible to have remotenames which are
mirrored and selected by query strings in the repo path. In this case it is
possible that the mirror is still out of date when reading back data from our
push. Ensure that when doing a push the remote server this is considered
'sticky' so that we read back from the remote we pushed to, rather then
determening the path ourselves.
To disable, please use:
treemanifest.stickypushpath=False
Reviewed By: DurhamG, markbt, quark-zju
Differential Revision: D14165444
fbshipit-source-id: 75a53ffab895d87a4c52814f7887145c134868b5
Summary:
simplecache extension support both memcache and local disk as a cache store.
we are going to use memcache on hg servers
getting rid of the caches on disks will save 966GB of disk space per machine.
P60876105
this will also allow hg machines to share the same cached data
Reviewed By: DurhamG
Differential Revision: D13927163
fbshipit-source-id: 3155c61da4a82dd7a790a8ccf8dbc701fe3957e1
Summary:
D13853115 adds `edenscm/` to `sys.path` and code still uses `import mercurial`.
That has nasty problems if both `import mercurial` and
`import edenscm.mercurial` are used, because Python would think `mercurial.foo`
and `edenscm.mercurial.foo` are different modules so code like
`try: ... except mercurial.error.Foo: ...`, or `isinstance(x, mercurial.foo.Bar)`
would fail to handle the `edenscm.mercurial` version. There are also some
module-level states (ex. `extensions._extensions`) that would cause trouble if
they have multiple versions in a single process.
Change imports to use the `edenscm` so ideally the `mercurial` is no longer
imported at all. Add checks in extensions.py to catch unexpected extensions
importing modules from the old (wrong) locations when running tests.
Reviewed By: phillco
Differential Revision: D13868981
fbshipit-source-id: f4e2513766957fd81d85407994f7521a08e4de48
Summary:
Move top-level Python packages `mercurial`, `hgext` and `hgdemandimport` to
a new top-level package `edenscm`. This allows the Python packages provided by
the upstream Mercurial to be installed side-by-side.
To maintain compatibility, `edenscm/` gets added to `sys.path` in
`mercurial/__init__.py`.
Reviewed By: phillco, ikostia
Differential Revision: D13853115
fbshipit-source-id: b296b0673dc54c61ef6a591ebc687057ff53b22e
