ci: Try lowering from -j 8 to -j 3

[Anviking]

Issue Number

ADP-466 / #2292 / #2295

Overview

• Lower integration test parallelism from -j 8 to -j 3 in buildkite and hydra

Comments

We have many problems with:
TTL tests
unit tests timing out

The unit tests on master barely seem to be failing
https://buildkite.com/input-output-hk/cardano-wallet
where the integration tests are not run.

I wonder if lowering the parallelism puts less strain on the machines
running the tests, and makes the tests pass more.

If it doesn't help, we should revert back to -j 8. But it's worth a shot, I think.

Results so far

• Unrelated failure, unit tests passed https://buildkite.com/input-output-hk/cardano-wallet/builds/11848 1
• Succeeded in 34 min https://buildkite.com/input-output-hk/cardano-wallet/builds/11852
• Failed due to unit timeout https://buildkite.com/input-output-hk/cardano-wallet/builds/11849 1
• Succeeded https://buildkite.com/input-output-hk/cardano-wallet/builds/11849 2
• Succeeded https://buildkite.com/input-output-hk/cardano-wallet/builds/11848 2
• Failed due to unit timeout https://hydra.iohk.io/build/4775847

Maybe this is not working...

[Anviking]

bors try

[iohk-bors]

try

Build failed:

• buildkite/cardano-wallet

src/Test/Integration/Scenario/API/Byron/Addresses.hs:432:13:
--
  | 1) API Specifications, BYRON_ADDRESSES, ADDRESS_IMPORT_05 - I can import 15000 of addresses
  | While verifying (Status {statusCode = 200, statusMessage = "OK"},Right [])
  | Waited longer than 90s to resolve action: "Addresses are imported".
  | expected: 15000
  | but got: 0

[Anviking]

bors try

[iohk-bors]

try

Build failed:

• buildkite/cardano-wallet

[Anviking]

bors r+

[iohk-bors]

👎 Rejected by too few approved reviews

[Anviking]

bors try
meant this

[Anviking]

bors try

[iohk-bors]

try

Already running a review

[iohk-bors]

try

Build succeeded:

• ci/hydra-build:required
• buildkite/cardano-wallet

[Anviking]

bors try

[iohk-bors]

try

Build failed:

• ci/hydra-build:required

    rollback
      Can rollback to any arbitrary known checkpoint
        +++ OK, passed 100 tests.
      Correctly re-construct tx history on rollbacks
        +++ OK, passed 400 tests: