Commit graph

262 commits

Author SHA1 Message Date
aszlig 525b38eee8
Fix unspecified behaviour in readStorePathCAMap
When deploying a Hydra instance with current Nix master, most builds
would not run because of errors like this:

  queue monitor: error: --- Error --- hydra-queue-runner
  error: --- UsageError --- nix-daemon
  not a content address because it is not in the form '<prefix>:<rest>': /nix/store/...-somedrv

The last error message is from parseContentAddress, which expects a
colon-separated string, however what we got here is a store path.

Looking at the worker protocol, the following message sent to the Nix
daemon caused the error above:

  0x1E -> wopQuerySubstitutablePathInfos
  0x01 -> Number of paths
  0x16 -> Length of string
  "/nix/store/...-somedrv"
  0x00 -> Length of string
  ""

Looking at writeStorePathCAMap, the store path is indeed the first field
that's transmitted. However, readStorePathCAMap expects it to be the
*second* field *on my machine*, since expression evaluation order is a
classic form of unspecified behaviour[1] in C++.

This has been introduced in https://github.com/NixOS/nix/pull/3689,
specifically in commit 66a62b3189.

[1]: https://en.wikipedia.org/wiki/Unspecified_behavior#Order_of_evaluation_of_subexpressions

Signed-off-by: aszlig <aszlig@nix.build>
2020-09-13 02:40:51 +02:00
Eelco Dolstra a0f19d9f3a RemoteStore::addToStore(): Fix race between stderrThread and NAR writer
As pointed out by @B4dM4n, the call to to.flush() on stderrThread is
unsafe because the NAR writer thread is also writing to 'to'.

Fixes #3943.
2020-08-27 14:50:51 +02:00
John Ericson 422affe102 tabs -> spaces
Sorry I let the tab sneak in there in the first place.
2020-08-21 19:19:24 +00:00
Eelco Dolstra 4d77513d97
Merge pull request #3859 from obsidiansystems/drv-outputs-map-allow-missing
`queryDerivationOutputMap` no longer assumes all outputs have a mapping
2020-08-20 16:49:23 +02:00
John Ericson 9a9d834dc7 Rename drv output querying functions
- `queryDerivationOutputMapAssumeTotal` -> `queryPartialDerivationOutputMap`
 - `queryDerivationOutputMapAssumeTotal` -> `queryDerivationOutputMap`
2020-08-20 14:12:51 +00:00
John Ericson 47644e49ca Specialize std::optional<StorePath> so this is backwards compatible
While I am cautious to break parametricity, I think it's OK in this
cases---we're not about to try to do some crazy polymorphic protocol
anytime soon.
2020-08-07 17:05:14 +00:00
John Ericson e89b5bd0bf Minimize the usage of Hash::dummy 2020-08-06 18:31:48 +00:00
John Ericson 6c66331d5c WIP: Put the worker protocol read and write in a namespace to disambig 2020-08-05 20:37:48 +00:00
John Ericson ed96e603e1 Proxy -> Phantom to match Rust
Sorry, Haskell.
2020-08-05 19:44:08 +00:00
Carlo Nucera 1d71028f4d Remove optionality in ValidPathInfo::narInfo 2020-08-05 14:42:48 -04:00
John Ericson cf939055c8 Merge remote-tracking branch 'upstream/master' into drv-outputs-map-allow-missing 2020-08-05 16:43:30 +00:00
John Ericson 16c98bf57c Get rid of some unneeded temporaries 2020-08-04 22:36:31 +00:00
John Ericson 1dfcbebc95 Organize and format code a bit 2020-08-04 22:28:10 +00:00
John Ericson 45b6fdb22b Remove unused functions 2020-08-04 22:10:13 +00:00
Carlo Nucera b6d97fdbf4 Merge branch 'master' of github.com:NixOS/nix into drv-outputs-map-allow-missing 2020-07-31 13:12:51 -04:00
Carlo Nucera eee6ef86cd Merge branch 'master' of github.com:NixOS/nix into better-ca-parse-errors 2020-07-30 18:27:25 -04:00
Matthew Bauer 05ac4db39a Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-07-30 12:38:24 -05:00
Eelco Dolstra 3f6e88a552 unsigned long long -> uint64_t 2020-07-30 13:34:04 +02:00
Eelco Dolstra f63839bfa4 Cleanup 2020-07-29 18:04:51 +02:00
Eelco Dolstra 4c0077a07d Fix RemoteStore::addToStore() latency
Since 6185d25e52, this was very
latency-bound since it required a round-trip for every 32 KiB. So for
example copying a 514 MiB closure over a virtual ethernet device with
a articial delay of just 1 ms took 343s. Now it takes 2.7s.

Fixes #3372.
2020-07-29 00:48:39 +02:00
John Ericson 2c7557481b queryDerivationOutputMap no longer assumes all outputs have a mapping
This assumption is broken by CA derivations. Making a PR now to do the
breaking daemon change as soon as possible (if it is already too late,
we can bump protocol intead).
2020-07-24 21:14:06 +00:00
John Ericson cc0d77f8c9 Merge branch 'hash-always-has-type' of github.com:obsidiansystems/nix into better-ca-parse-errors 2020-07-16 17:28:52 +00:00
Carlo Nucera d090562348 Merge branch 'master' of github.com:NixOS/nix into hash-always-has-type 2020-07-15 17:21:01 -04:00
Eelco Dolstra 545bb2ed03 Remove 'accessor' from addToStore()
This is only used by hydra-queue-runner and it's better to implement
it there.
2020-07-13 18:31:19 +02:00
John Ericson 4415765385 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-13 03:01:44 +00:00
Matthew Bauer acb74d4d94 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-07-10 18:13:45 -04:00
Carlo Nucera 0f05a36e20 Merge branch 'master' of github.com:NixOS/nix into better-ca-parse-errors 2020-07-06 16:57:09 -04:00
John Ericson 3134db1a83 Merge branch 'hash-always-has-type' of github.com:obsidiansystems/nix into better-ca-parse-errors 2020-07-03 14:12:38 +00:00
John Ericson dbffd309fe Merge branch 'master' of github.com:NixOS/nix into hash-always-has-type 2020-07-03 14:11:38 +00:00
Ben Burdette b29a4ea1dc Merge branch 'master' into add-trace 2020-07-03 07:57:36 -06:00
Matthew Bauer fc2ab42e86 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-07-02 11:14:04 -04:00
Ben Burdette bf2788e4c1 move showTrace to new loggerSettings 2020-07-02 09:04:31 -06:00
Carlo Nucera 263ccdd489 Rename two hash constructors to proper functions 2020-07-01 18:34:18 -04:00
Eelco Dolstra 38ccf2e241 Cleanup 2020-07-01 15:31:34 +02:00
regnat d38f860c3e Add a way to get all the outputs of a derivation with their label
Generalize `queryDerivationOutputNames` and `queryDerivationOutputs` by
adding a `queryDerivationOutputMap` that returns the map
`outputName=>outputPath`

(not that this is not equivalent to merging the results of
`queryDerivationOutputs` and `queryDerivationOutputNames` as sets don't
preserve the order, so we would end up with an incorrect mapping).

squash! Add a way to get all the outputs of a derivation with their label

Rename StorePathMap to OutputPathMap
2020-06-24 20:38:40 +02:00
John Ericson 98e5d1af03 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-06-23 17:03:37 +00:00
Matthew Bauer 66a62b3189 Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-06-22 13:08:11 -04:00
Matthew Bauer f2a6cee334 Update worker protocol to support sending storepath maps
We need to also send the ca to daemon in addition to the path.
2020-06-19 18:06:19 -04:00
John Ericson 507aa48739 WIP: Make Hash always store a valid hash type 2020-06-19 21:48:57 +00:00
John Ericson 3f8dcfe3fd Merge branch 'validPathInfo-temp' into validPathInfo-ca-proper-datatype 2020-06-18 23:01:58 +00:00
John Ericson 15abb2aa2b Revert the enum struct change
Not a regular git revert as there have been many merges and things.
2020-06-18 22:11:26 +00:00
John Ericson 40526fbea5 Merge remote-tracking branch 'upstream/master' into enum-class 2020-06-18 21:38:15 +00:00
Matthew Bauer 5e631e3304 Add StorePathCAMap for querySubstitutablePathInfos
I’m not 100% sure this is wanted since it kind of makes everything
have to know about ca even if they don’t really want to. But it also
make things easier in dealing with looking up ca.
2020-06-17 15:03:05 -04:00
Matthew Bauer 7bd88cc1dc Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-06-17 13:32:29 -04:00
p01arst0rm c9d06558b6 replaced uncaught_exception with uncaught_exceptions 2020-06-17 03:15:47 +01:00
Eelco Dolstra 29542865ce Remove StorePath::clone() and related functions 2020-06-16 22:20:18 +02:00
Eelco Dolstra 7a77762961 Merge branch 'errors-phase-2' of https://github.com/bburdette/nix 2020-06-15 11:46:31 +02:00
Matthew Bauer 79c169d1c6 Allow substituting from different storeDir
Substituters can substitute from one store dir to another with a
little bit of help. The store api just needs to have a CA so it can
recompute the store path based on the new store dir. We can only do
this for fixed output derivations with no references, though.
2020-06-12 09:49:09 -05:00
Eelco Dolstra 045b07200c Remove Store::queryDerivationOutputNames()
This function was used in only one place, where it could easily be
replaced by readDerivation() since it's not
performance-critical. (This function appears to have been modelled
after queryDerivationOutputs(), which exists only to make the garbage
collector faster.)
2020-06-12 12:46:33 +02:00
John Ericson 25e61812f3
Apply suggestions from code review
Co-authored-by: Matthew Bauer <mjbauer95@gmail.com>
2020-06-02 12:47:18 -04:00