Commit Graph

545 Commits

Author SHA1 Message Date
a-masterov
f749437cec Resolve the problem the docker compose caused by the extensions tests (#8024)
## Problem
The merging of #7818 caused the problem with the docker-compose file.
Running docker compose is now impossible due to the unavailability of
the neon-test-extensions:latest image

## Summary of changes
Fix the problem:
Add the latest tag to the neon-test-extensions image and use the
profiles feature of the docker-compose file to avoid loading the
neon-test-extensions container if it is not needed.
2024-06-12 12:25:13 +02:00
a-masterov
e27ce38619 Add testing for extensions (#7818)
## Problem

We need automated tests of extensions shipped with Neon to detect
possible problems.

## Summary of changes

A new image neon-test-extensions is added. Workflow changes to test the
shipped extensions are added as well.
Currently, the regression tests, shipped with extensions are in use.
Some extensions, i.e. rum, timescaledb, rdkit, postgis, pgx_ulid, pgtap,
pg_tiktoken, pg_jsonschema, pg_graphql, kq_imcx, wal2json_2_5 are
excluded due to problems or absence of internal tests.

---------

Co-authored-by: Alexander Bayandin <alexander@neon.tech>
Co-authored-by: Heikki Linnakangas <heikki@neon.tech>
2024-06-11 13:07:51 +02:00
Christian Schwarz
ae5badd375 Revert "Include openssl and ICU statically linked" (#8003)
Reverts neondatabase/neon#7956

Rationale: compute incompatibilties

Slack thread:
https://neondb.slack.com/archives/C033RQ5SPDH/p1718011276665839?thread_ts=1718008160.431869&cid=C033RQ5SPDH

Relevant quotes from @hlinnaka 

> If we go through with the current release candidate, but the compute
is pinned, people who create new projects will get that warning, which
is silly. To them, it looks like the ICU version was downgraded, because
initdb was run with newer version.

> We should upgrade the ICU version eventually. And when we do that,
users with old projects that use ICU will start to see that warning. I
think that's acceptable, as long as we do homework, notify users, and
communicate that properly.
> When do that, we should to try to upgrade the storage and compute
versions at roughly the same time.
2024-06-10 13:20:20 +02:00
Rahul Patil
3b647cd55d Include openssl and ICU statically linked (#7956)
## Problem

Due to the upcoming End of Life (EOL) for Debian 11, we need to upgrade 
the base OS for Pageservers from Debian 11 to Debian 12 for security
reasons.

When deploying a new Pageserver on Debian 12 with the same binary built
on
Debian 11, we encountered the following errors:

```
could not execute operation: pageserver error, status: 500, 
msg: Command failed with status ExitStatus(unix_wait_status(32512)): 
/usr/local/neon/v16/bin/initdb: error while loading shared libraries: 
libicuuc.so.67: cannot open shared object file: No such file or directory
```

and 

```
could not execute operation: pageserver error, status: 500, 
msg: Command failed with status ExitStatus(unix_wait_status(32512)):
 /usr/local/neon/v14/bin/initdb: error while loading shared libraries: 
 libssl.so.1.1: cannot open shared object file: No such file or directory
```

These issues occur when creating new projects.


## Summary of changes

- To address these issues, we configured PostgreSQL build to use 
  statically linked OpenSSL and ICU libraries. 

- This resolves the missing shared library errors when running the 
  binaries on Debian 12.
  
Closes: https://github.com/neondatabase/cloud/issues/12648 

## Checklist before requesting a review

- [x] I have performed a self-review of my code.
- [ ] If it is a core feature, I have added thorough tests.
- [ ] Do we need to implement analytics? if so did you add the relevant
metrics to the dashboard?
- [ ] If this PR requires public announcement, mark it with
/release-notes label and add several sentences in this section.

## Checklist before merging

- [x] Do not forget to reformat commit message to not include the above
checklist
2024-06-07 17:28:10 +00:00
a-masterov
2078dc827b CI: copy run-* labels from external contributors' PRs (#7915)
## Problem
We don't carry run-* labels from external contributors' PRs to
ci-run/pr-* PRs. This is not really convenient.
Need to sync labels in approved-for-ci-run workflow.
## Summary of changes
Added the procedure of transition of labels from the original PR 

## Checklist before requesting a review

- [x] I have performed a self-review of my code.
- [ ] If it is a core feature, I have added thorough tests.
- [ ] Do we need to implement analytics? if so did you add the relevant
metrics to the dashboard?
- [ ] If this PR requires public announcement, mark it with
/release-notes label and add several sentences in this section.

## Checklist before merging

- [ ] Do not forget to reformat commit message to not include the above
checklist

---------

Co-authored-by: Alexander Bayandin <alexander@neon.tech>
2024-06-07 10:04:59 +02:00
a-masterov
b0a954bde2 CI: switch ubuntu-latest with ubuntu-22.04 (#7256) (#7901)
## Problem
We use ubuntu-latest as a default OS for running jobs. It can cause
problems due to instability, so we should use the LTS version of Ubuntu.

## Summary of changes
The image ubuntu-latest was changed with ubuntu-22.04 in workflows.

## Checklist before requesting a review

- [x] I have performed a self-review of my code.
- [ ] If it is a core feature, I have added thorough tests.
- [ ] Do we need to implement analytics? if so did you add the relevant
metrics to the dashboard?
- [ ] If this PR requires public announcement, mark it with
/release-notes label and add several sentences in this section.

## Checklist before merging

- [ ] Do not forget to reformat commit message to not include the above
checklist
2024-05-30 08:25:10 +02:00
Peter Bendel
fabeff822f Performance test for pgvector HNSW index build and queries (#7873)
## Problem

We want to regularly verify the performance of pgvector HNSW parallel
index builds and parallel similarity search using HNSW indexes.
The first release that considerably improved the index-build parallelism
was pgvector 0.7.0 and we want to make sure that we do not regress by
our neon compute VM settings (swap, memory over commit, pg conf etc.)

## Summary of changes

Prepare a Neon project with 1 million openAI vector embeddings (vector
size 1536).
Run HNSW indexing operations in the regression test for the various
distance metrics.
Run similarity queries using pgbench with 100 concurrent clients.

I have also added the relevant metrics to the grafana dashboards pgbench
and olape

---------

Co-authored-by: Alexander Bayandin <alexander@neon.tech>
2024-05-28 11:05:33 +00:00
Alexander Bayandin
71a7fd983e CI(release): tune Storage & Compute release PR title (#7870)
## Problem

A title for automatic proxy release PRs is `Proxy release`, and for
storage & compute, it's just `Release`

## Summary of changes
- Amend PR title for Storage & Compute releases to "Storage & Compute
release"
2024-05-24 14:11:51 +01:00
Oleg Vasilev
eb0c026aac Bump vm-builder v0.28.1 -> v0.29.3 (#7849)
One change:
runner: allow coredump collection (#931)
2024-05-22 21:48:59 +00:00
Alexander Bayandin
a7f31f1a59 CI: build multi-arch images (#7696)
## Problem

We don't build our docker images for ARM arch, and that makes it harder
to run images on ARM (on MacBooks with Apple Silicon, for example).

## Summary of changes
- Build `neondatabase/neon` for ARM and create a multi-arch image
- Build `neondatabase/compute-node-vXX` for ARM and create a multi-arch
image
- Run `test-images` job on ARM as well
2024-05-22 16:06:05 +01:00
Alexander Bayandin
325f3784f9 CI(promote-images): simplify & fix the job (#7826)
## Problem

Currently, `latest` tag is added to the images in several cases: 
```
github.ref_name == 'main' || github.ref_name == 'release' || github.ref_name == 'release-proxy'
```

This leads to a race; the `latest` tag jumps back and forth depending on
the branch that has built images.

## Summary of changes
- Do not push `latest` images to prod ECR (we don't use it)
- Use `docker buildx imagetools` instead of `crane` for tagging images
- Unify `vm-compute-node-image` job with others and use dockerhub as a
first source for images (sync images with ECR)
- Tag images with `latest` only for commits in `main`
2024-05-22 15:02:20 +00:00
Tristan Partin
900f391115 Make postgres_version action input default to a string
This is "required" by GitHub Actions, though they must do some coersion
on their side.
2024-05-22 09:20:00 -05:00
Tristan Partin
8901ce9c99 Fix typos in action definitions 2024-05-22 09:20:00 -05:00
Alexander Bayandin
d1d55bbd9f CI(report-benchmarks-failures): fix condition (#7820)
## Problem

`report-benchmarks-failures` got skipped if a dependent job fails.

## Summary of changes
- Fix the if-condition by adding `&& failures()` to it; it'll make the
job run if the dependent job fails.
2024-05-22 14:43:10 +01:00
Alexander Bayandin
438bacc32e CI(neon-extra-builds): Use small-arm64 runners instead of large-arm64 (#7740)
## Problem
There are not enough arm runners and jobs in `neon-extra-builds` workflow
take about the same amount of time on a small-arm runner as on
large-arm.

## Summary of changes
- Switch `neon-extra-builds` workflow from `large-arm64` to
`small-arm64` runners
2024-05-15 14:29:12 +03:00
Alexander Bayandin
b6ee91835b CI(report-benchmarks-failures): fix condition (#7745)
## Problem

`report-benchmarks-failures` job is triggered for any failure in the CI
pipeline, but we need it to be triggered only for failed `benchmarks`
job

## Summary of changes
- replace `failure()` with `needs.benchmarks.result == 'failure'` in the
condition
2024-05-14 13:39:59 +03:00
Alexander Bayandin
55ba885f6b CI(report-benchmarks-failures): report benchmarks failures to slack (#7678)
## Problem

`benchmarks` job that we run on the main doesn't block anything, so it's
easy to miss its failure.

Ref https://github.com/neondatabase/cloud/issues/13087

## Summary of changes
- Add `report-benchmarks-failures` job that report failures of
`benchmarks` job to a Slack channel
2024-05-13 14:16:03 +01:00
Joonas Koivunen
6206f76419 build: run doctests (#7697)
While switching to use nextest with the repository in f28bdb6, we had
not noticed that it doesn't yet support running doctests. Run the doc
tests before other tests.
2024-05-10 16:46:50 +02:00
Andrey Taranik
873b222080 use own arm64 gha runners (#7373)
## Problem

Move from aws based arm64 runners to bare-metal based

## Summary of changes
Changes in GitHub action workflows where `runs-on: arm64` used. More
parallelism added, build time for `neon with extra platform builds`
workflow reduced from 45m to 25m
2024-05-10 11:04:23 +00:00
Alexander Bayandin
51376ef3c8 Add Postgres commit sha to Postgres version (#4603)
## Problem

Ref https://neondb.slack.com/archives/C036U0GRMRB/p1688122168477729

## Summary of changes
- Add sha from postgres repo into postgres version string (via
`--with-extra-version`)
- Add a test that Postgres version matches the expected one
- Remove build-time hard check and allow only related tests to fail
2024-05-07 15:18:17 +00:00
Vlad Lazar
1f417af9fd pagserver: use vectored read path in benchmarks (#7498)
## Problem
Benchmarks don't use the vectored read path.

## Summary of changes
* Update the benchmarks to use the vectored read path for both singular
and vectored gets.
* Disable validation for the benchmarks
2024-04-29 17:26:35 +01:00
Vlad Lazar
e4a279db13 pageserver: coalesce read paths (#7477)
## Problem
We are currently supporting two read paths. No bueno.

## Summary of changes
High level: use vectored read path to serve get page requests - gated by
`get_impl` config
Low level:
1. Add ps config, `get_impl` to specify which read path to use when
serving get page requests
2. Fix base cached image handling for the vectored read path. This was
subtly broken: previously we
would not mark keys that went past their cached lsn as complete. This is
a self standing change which
could be its own PR, but I've included it here because writing separate
tests for it is tricky.
3. Fork get page to use either the legacy or vectored implementation 
4. Validate the use of vectored read path when serving get page requests
against the legacy implementation.
Controlled by `validate_vectored_get` ps config.
5. Use the vectored read path to serve get page requests in tests (with
validation).

## Note
Since the vectored read path does not go through the page cache to read
buffers, this change also amounts to a removal of the buffer page cache. Materialized page cache
is still used.
2024-04-25 13:29:17 +01:00
Em Sharnoff
35e9fb360b Bump vm-builder v0.23.2 -> v0.28.1 (#7433)
Only one relevant change, from v0.28.0:

- neondatabase/autoscaling#887

Double-checked with `git log neonvm/tools/vm-builder`.
2024-04-21 17:35:01 -07:00
Alexander Bayandin
e8a98adcd0 CI: downgrade docker/setup-buildx-action to v2
- Cleanup part for `docker/setup-buildx-action` started to fail with the following error (for no obvious reason):
```
/nvme/actions-runner/_work/_actions/docker/setup-buildx-action/v3/webpack:/docker-setup-buildx/node_modules/@actions/cache/lib/cache.js:175
            throw new Error(`Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.`);
^
Error: Path Validation Error: Path(s) specified in the action for caching do(es) not exist, hence no cache is being saved.
    at Object.rejected (/nvme/actions-runner/_work/_actions/docker/setup-buildx-action/v3/webpack:/docker-setup-buildx/node_modules/@actions/cache/lib/cache.js:175:1)
    at Generator.next (<anonymous>)
    at fulfilled (/nvme/actions-runner/_work/_actions/docker/setup-buildx-action/v3/webpack:/docker-setup-buildx/node_modules/@actions/cache/lib/cache.js:29:1)
```

- Downgrade `docker/setup-buildx-action` from v3 to v2
2024-04-21 21:10:05 +01:00
Alexander Bayandin
41bb1e42b8 CI(check-build-tools-image): fix getting build-tools image tag (#7402)
## Problem

For PRs, by default, we check out a phantom merge commit (merge a branch
into the main), but using a real branches head when finding `build-tools`
image tag.

## Summary of changes
- Change `COMMIT_SHA` to use `${{ github.sha }}` instead of `${{
github.event.pull_request.head.sha }}` for PRs

## Checklist before requesting a review

- [x] I have performed a self-review of my code.
- [ ] If it is a core feature, I have added thorough tests.
- [ ] Do we need to implement analytics? if so did you add the relevant
metrics to the dashboard?
- [ ] If this PR requires public announcement, mark it with
/release-notes label and add several sentences in this section.

## Checklist before merging

- [ ] Do not forget to reformat commit message to not include the above
checklist
2024-04-17 09:50:58 +01:00
Christian Schwarz
f752c40f58 storage release: stop using no-op deployProxy / deployPgSniRouter (#7382)
As of https://github.com/neondatabase/aws/pull/1264
these options are no-ops.

This PR unblocks removal of the variables in
https://github.com/neondatabase/aws/pull/1263
2024-04-15 15:05:44 +02:00
Alexander Bayandin
94505fd672 CI: speed up Allure reports upload (#7362)
## Problem

`create-test-report` job takes more than 8 minutes, the longest step is
uploading Allure report to S3:

Before:
```
+ aws s3 cp --recursive --only-show-errors /tmp/pr-7362-1712847045/report s3://neon-github-public-dev/reports/pr-7362/8647730612

real	6m10.572s
user	6m37.717s
sys	1m9.429s
```

After:
```
+ s5cmd --log error cp '/tmp/pr-7362-1712858221/report/*' s3://neon-github-public-dev/reports/pr-7362/8650636861/

real	0m9.698s
user	1m9.438s
sys	0m6.419s
```

## Summary of changes
- Add `s5cmd`(https://github.com/peak/s5cmd) to build-tools image
- Use `s5cmd` instead of `aws s3` for uploading Allure reports
2024-04-11 23:35:30 +01:00
Alexander Bayandin
99a56b5606 CI(build-build-tools-image): Do not cancel concurrent workflows (#7226)
## Problem

`build-build-tools-image` workflow is designed to be run only in one
example per the whole repository. Currently, the job gets cancelled if a
newer one is scheduled, here's an example:
https://github.com/neondatabase/neon/actions/runs/8419610607

## Summary of changes
- Explicitly set `cancel-in-progress: false` for all jobs that aren't
supposed to be cancelled
2024-04-11 15:23:08 +01:00
Alexander Bayandin
4f4f787119 Update staging hostname (#7347)
## Problem

```
Could not resolve host: console.stage.neon.tech
```

## Summary of changes
- replace `console.stage.neon.tech` with `console-stage.neon.build`
2024-04-09 12:03:46 +01:00
Alexander Bayandin
90a8ff55fa CI(benchmarking): Add Sharded Tenant for pgbench (#7186)
## Problem

During Nightly Benchmarks, we want to collect pgbench results for
sharded tenants as well.

## Summary of changes
- Add pre-created sharded project for pgbench
2024-04-02 14:39:24 +01:00
Alexander Bayandin
c52b80b930 CI(deploy): Do not deploy storage controller to preprod for proxy releases (#7269)
## Problem

Proxy release to a preprod automatically triggers a deployment of storage
controller (`deployStorageController=true` by default)

## Summary of changes
- Set `deployStorageController=false` for proxy releases to preprod
- Set explicitly `deployStorageController=true` for storage releases to
preprod and prod
2024-03-28 16:51:45 +00:00
Alexander Bayandin
7f9cc1bd5e CI(trigger-e2e-tests): set e2e-platforms (#7229)
## Problem

We don't want to run an excessive e2e test suite on neonvm if there are
no relevant changes.

## Summary of changes
- Check PR diff and if there are no relevant compute changes (in
`vendor/`, `pgxn/`, `libs/vm_monitor` or `Dockerfile.compute-node`
- Switch job from `small` to `ubuntu-latest` runner to make it possible
to use GitHub CLI
2024-03-27 13:10:37 +00:00
Alexander Bayandin
2668a1dfab CI: deploy release version to a preprod region (#6811)
## Problem

We want to deploy releases to a preprod region first to perform required
checks

## Summary of changes
- Deploy `release-XXX` / `release-proxy-YYY` docker tags to a preprod region
2024-03-22 14:42:10 +00:00
John Spray
7d32af5ad5 .github: apply timeout to pytest regress (#7142)
These test runs usually take 20-30 minutes. if something hangs, we see
actions proceeding for several hours: it's more convenient to have them
time out sooner so that we notice that something has hung faster.
2024-03-15 15:57:01 +00:00
Christian Schwarz
2b0f3549f7 default to tokio-epoll-uring in CI tests & on Linux (#7077)
All of production is using it now as of
https://github.com/neondatabase/aws/pull/1121

The change in `flaky_tests.py` resets the flakiness detection logic.

The alternative would have been to repeat the choice of io engine in
each test name, which would junk up the various test reports too much.

---------

Co-authored-by: Alexander Bayandin <alexander@neon.tech>
2024-03-11 14:35:59 +00:00
Alex Chi Z
e938bb8157 fix epic issue template (#6920)
The template does not parse on GitHub
2024-03-04 09:17:14 -05:00
Anna Khanova
e1c032fb3c Fix type (#6998)
## Problem

Typo

## Summary of changes

Fix
2024-03-04 13:26:16 +00:00
Alexander Bayandin
6e46204712 CI(deploy): use separate workflow for proxy deploys (#6995)
## Problem

The current implementation of `deploy-prod` workflow doesn't allow to
run parallel deploys on Storage and Proxy.

## Summary of changes
- Call `deploy-proxy-prod` workflow that deploys only Proxy components,
and that can be run in parallel with `deploy-prod` for Storage.
2024-03-04 12:08:44 +00:00
Alexander Bayandin
54586d6b57 CI: create compute-tools image from compute-node image (#6899)
## Problem

We build compute-tools binary twice — in `compute-node` and in
`compute-tools` jobs, and we build them slightly differently:
- `cargo build --locked --profile release-line-debug-size-lto`
(previously in `compute-node`)
- `mold -run cargo build -p compute_tools --locked --release`
(previously in `compute-tools`)

Before:
- compute-node: **6m 34s**
- compute-tools (as a separate job): **7m 47s**

After:
- compute-node: **7m 34s**
- compute-tools (as a separate step, within compute-node job):  **5s**

## Summary of changes
- Move compute-tools image creation to `Dockerfile.compute-node`
- Delete `Dockerfile.compute-tools`
2024-02-28 15:24:35 +00:00
Alexander Bayandin
60a232400b CI(pin-build-tools-image): pass secrets to the job (#6949)
## Problem

`pin-build-tools-image` job doesn't have access to secrets and thus
fails. Missed in the original PR[0]

- [0] https://github.com/neondatabase/neon/pull/6795

## Summary of changes
- pass secrets to `pin-build-tools-image` job
2024-02-28 14:36:17 +00:00
Alexander Bayandin
1d5e476c96 CI: use build-tools image from dockerhub (#6795)
## Problem

Currently, after updating `Dockerfile.build-tools` in a PR, it requires
a manual action to make it `pinned`, i.e., the default for everyone. It
also makes all opened PRs use such images (even created in the PR and
without such changes).
This PR overhauls the way we build and use `build-tools` image (and uses
the image from Docker Hub).

## Summary of changes
- The `neondatabase/build-tools` image gets tagged with the latest
commit sha for the `Dockerfile.build-tools` file
- Each PR calculates the tag for `neondatabase/build-tools`, tries to
pull it, and rebuilds the image with such tag if it doesn't exist.
- Use `neondatabase/build-tools` as a default image
- When running on `main` branch — create a `pinned` tag and push it to
ECR
- Use `concurrency` to ensure we don't build `build-tools` image for the
same commit in parallel from different PRs
2024-02-28 12:38:11 +00:00
Joonas Koivunen
fcb77f3d8f build: add a timeout for test-images (#6942)
normal runtime seems to be 3min, add 20min timeout.
2024-02-28 12:58:13 +02:00
Alexander Bayandin
975786265c CI: Delete GitHub Actions caches once PR is closed (#6900)
## Problem

> Approaching total cache storage limit (9.25 GB of 10 GB Used)
> Least recently used caches will be automatically evicted to limit the
total cache storage to 10 GB. [Learn more about cache
usage.](https://docs.github.com/actions/using-workflows/caching-dependencies-to-speed-up-workflows#usage-limits-and-eviction-policy)

From https://github.com/neondatabase/neon/actions/caches

Some of these caches are from closed/merged PRs.

## Summary of changes
- Add a workflow that deletes caches for closed branches
2024-02-26 18:17:22 +01:00
Alexander Bayandin
94f6b488ed CI(release-proxy): fix a couple missed release-proxy branch handling (#6892)
## Problem

In the original PR[0], I've missed a couple of `release` occurrences
that should also be handled for `release-proxy` branch

- [0] https://github.com/neondatabase/neon/pull/6797

## Summary of changes
- Add handling for `release-proxy` branch to allure report
- Add handling for `release-proxy` branch to e2e tests malts.com
2024-02-23 14:12:09 +00:00
Alexander Bayandin
6f8f7c7de9 CI: Build images using docker buildx instead of kaniko (#6871)
## Problem

To "build" a compute image that doesn't have anything new, kaniko takes
13m[0], docker buildx does it in 5m[1].
Also, kaniko doesn't fully support bash expressions in the Dockerfile
`RUN`, so we have to use different workarounds for this (like `bash -c
...`).

- [0]
https://github.com/neondatabase/neon/actions/runs/8011512414/job/21884933687
- [1]
https://github.com/neondatabase/neon/actions/runs/8008245697/job/21874278162

## Summary of changes
- Use docker buildx to build `compute-node` images
- Use docker buildx to build `neon-image` image
- Use docker buildx to build `compute-tools` image 
- Use docker hub for image cache (instead of ECR)
2024-02-23 12:36:18 +01:00
Alexander Bayandin
2424d90883 CI: Split Proxy and Storage releases (#6797)
## Problem

We want to release Proxy at a different cadence.

## Summary of changes

- build-and-test workflow:
  - Handle the `release-proxy` branch
  - Tag images built on this branch with `release-proxy-XXX` tag
- Trigger deploy workflow with `deployStorage=true` &
`deployStorageBroker=true` on `release` branch
- Trigger deploy workflow with `deployPgSniRouter=true` &
`deployProxy=true` on `release-proxy` branch
- release workflow (scheduled creation of release branch):
- Schedule Proxy releases for Thursdays (a random day to make it
different from Storage releases)
2024-02-22 17:15:18 +01:00
Alexander Bayandin
f2767d2056 CI: run check-permissions before all jobs (#6794)
## Problem
For PRs from external contributors, we're still running `actionlint` and
`neon_extra_builds` workflows (which could fail due to lack of
permissions to secrets).

## Summary of changes
- Extract `check-permissions` job to a separate reusable workflow
- Depend all jobs from `actionlint` and `neon_extra_builds` workflows on
`check-permissions`
2024-02-21 20:32:12 +01:00
Vlad Lazar
5d6083bfc6 pageserver: add vectored get implementation (#6576)
This PR introduces a new vectored implementation of the read path.

The search is basically a DFS if you squint at it long enough.
LayerFringe tracks the next layers to visit and acts as our stack.
Vertices are tuples of (layer, keyspace, lsn range). Continuously
pop the top of the stack (most recent layer) and do all the reads
for one layer at once.

The search maintains a fringe (`LayerFringe`) which tracks all the
layers that intersect the current keyspace being searched. Continuously
pop the top of the fringe (layer with highest LSN) and get all the data
required from the layer in one go.

Said search is done on one timeline at a time. If data is still required for
some keys, then search the ancestor timeline.

Apart from the high level layer traversal, vectored variants have been
introduced for grabbing data from each layer type. They still suffer from
read amplification issues and that will be addressed in a different PR.

You might notice that in some places we duplicate the code for the
existing read path. All of that code will be removed when we switch
the non-vectored read path to proxy into the vectored read path.
In the meantime, we'll have to contend with the extra cruft for the sake
of testing and gentle releasing.
2024-02-21 09:49:46 +00:00
Alexander Bayandin
04190a1fea CI(test_runner): misc small changes (#6801)
## Problem

A set of small changes that are too small to open a separate for each.

A notable change is adding `pytest-repeat` plugin, which can help to
ensure that a flaky test is fixed by running such a test several times.

## Summary of changes
- Update Allure from 2.24.0 to 2.27.0
- Update Ruff from 0.1.11 to 0.2.2 (update `[tool.ruff]` section of
`pyproject.toml` for it)
- Install pytest-repeat plugin
2024-02-20 20:45:00 +00:00
Alexander Bayandin
feb359b459 CI: Update deprecated GitHub Actions (#6822)
## Problem

We use a bunch of deprecated actions.
See https://github.com/neondatabase/neon/actions/runs/7958569728
(Annotations section)

```
Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v3, actions/setup-java@v3, actions/cache@v3, actions/github-script@v6. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.
```

## Summary of changes
- `actions/cache@v3` -> `actions/cache@v4`
- `actions/checkout@v3` -> `actions/checkout@v4`
- `actions/github-script@v6` -> `actions/github-script@v7`
- `actions/setup-java@v3` -> `actions/setup-java@v4`
- `actions/upload-artifact@v3` -> `actions/upload-artifact@v4`
2024-02-19 21:46:22 +00:00