This PR follows the proposal for #1142

It switches our runtime to tokio 0.2 with very few changes, and the value in this is that we can run benchmarks and performance tests to ensure there's no degradation from upgrading to the new tokio reactor.

Addresses #1695 and #1696.

Current state (updated as we go):

• [x] fd leak (https://github.com/tokio-rs/tokio-compat/issues/27)
• [x] test_max_size and test_max_size_resume tests failing (it was happening from before, https://github.com/timberio/vector/pull/1922#issuecomment-597018268)
• [x] test_source_panic (we concluded it was failing before, https://github.com/timberio/vector/pull/1922#issuecomment-594098317)
• [x] sinks::statsd::test::test_send_to_statsd failing (see #2016 and #2026)
• [x] benchmarks (see https://github.com/timberio/vector/pull/1922#issuecomment-594037080 and https://github.com/timberio/vector/pull/1922#issuecomment-594042060)
• [x] test harness comparison (got raw data loaded and ready at S3, see https://github.com/timberio/vector/pull/1922#issuecomment-594114561 and https://github.com/timberio/vector/pull/1922#issuecomment-594120453; report: https://github.com/timberio/vector/pull/1922#issuecomment-597817765)
• [x] additional comparison results (https://github.com/timberio/vector/pull/1922#issuecomment-600077012 and https://github.com/timberio/vector/pull/1922#issuecomment-600301648)

There's a tokio-compat-debug branch that I use to dump the trashed code version altered with extensive debugging. I'm only using it to run the code against the CI, since my local setup doesn't reproduce the issues., and that branch isn't supposed to be merged. Rather, we'll just take the end results from it, if there are any.

Example:

sources:
  otel:
    type: opentelemetry
    address: 0.0.0.0:6788

the opentelemetry log will be converted into EventLog:

{
  // optional
  "attributes": {"k1": "v1"},
  "resources": {"k1": "v1"},
  "message": "xxx",
  "trace_id": "xxx", 
  "span_id": "xxx",
  "severity_number": 1,
  "severity_text": "xxx",
  "flags": 1,

  // required
  "timestamp": ts_nano,
  "observed_time_unix_nano": ts_nano, //source will set this as current ts if it's not present
  "dropped_attributes_count": 0

}

I've been testing this source in our production for a week, and it works well! Hope this feature can be merged and I can continue to work on opentelemetry-metrics

closes #690

Missing tests and proper healthcheck right now, I just wanted to show this version to get some feedback. It's based largely on the kafka sink. It impl's Sink, like the kafka sink it holds the in flight futures and Acks back after completion.

Let me know if this approach is suitable, if there are some configuration options missing we'd like to add, etc. I'd like to hold off on SSL at the moment because I don't think it's well supported in the underlying crate. This change depends on a change to SinkContext and pulsar-rs also, worth looking at that.

This PR enables https://bors.tech for our PR merge workflow. Now we run an abbreviated lint-centric check on the PR rather than the full test suite. We've achieved this by running the lint tests inside a container running the timberio/ci_image Docker image.

We also consolidated and updated the image build process in environment.yml to keep the ci_image up-to-date.

Then, instead of pressing merge, we use the bors commands to submit the PR to a staging branch where CI is run. The new CI run merges the prior e2e and tests jobs as a group. If these return green then the staging branch is fast-forwarded/merged into master.

Signed-off-by: James Turnbull [email protected]

This PR implements Kubernetes source according to #2222. There are a few things are different from the RFC:

• the name for the source is kubernetes_logs - it's wasn't properly addressed at the RFC, but the logs and other source kinds for the kubernetes would very likely have very different internal design, so we should probably keep them as separate units; to disambiguate from the very beginning I modified the name to be kubernetes_logs;
• had to bump MSKV to 1.15 - watch bookmarks are introduced in that version, and this is what we want to have to avoid extra desync issues.

Done:

• closes #2626;
• closes #2627;
• closes #2628;
• closes #2629;
• closes #2630;
• closes #2631.

To do (before the merge):

• [x] shutdown logic fix;
• [x] address the fingerprinting issue (#2890);
• [x] move the annotation process to the create_event to optimize out access to the file field;
• [x] ensure that MultiResponseDecoder doesn't leak memory;
• [x] add new dependencies to the environment (minikube, skaffold, etc);
• [x] bookmark parsing error (https://github.com/Arnavion/k8s-openapi/issues/70).

To do (after the merge):

• more configuration and knobs;
• #2632 (integration tests);
• #2633 (documentation).

External refs:

• https://github.com/aws/containers-roadmap/issues/809
• https://github.com/aws/containers-roadmap/issues/61

The overall approach was to build highly composable components, so that we can reuse them for further work - like for adding a sidecar-oriented transform for pod annotation, or exclusions based on namespace labels.

Ref #3649

Implements multiple host feature for elasticsearch sink with failover. Where the amount of inflight requests for each endpoint is an estimate of its load.

Possible extensions

• Related to splitting ARC layer, https://github.com/vectordotdev/vector/issues/3649#issuecomment-1148033374, it's possible to split of from ARC controller statistic gathering component although some changes/refactoring will be needed. Once extracted, that component can be added to HealthService or even better can be it's own layer which would provide load estimate for a specific endpoint where the load would be something like in_flight/current_limit as float.
• Sniffing feature can be added by implementing Stream for it and replacing fixed list of services with it at https://github.com/ktff/vector/blob/07bbc61be01ca16b4396b4554c144c9bbadec6c4/src/sinks/elasticsearch/config.rs#L358
• Reusing distribution layer should be relatively straightforward for sinks that use TowerRequestSettings.

Todo

• [x] Internal metrics
• [x] Internal logs
• [x] Documentation

This is the first iteration on a Virtual Machine for running VRL code.

The VM is currently behind a feature flag vrl-vm which is off by default, so running this branch will still run the old tree walking interpreter.

Most of the VM code is found in https://github.com/vectordotdev/vector/tree/stephen/vrl-vm/lib/vrl/compiler/src/vm

Currently, a VRL program is parsed to an AST of nodes that implement Expression. Running the program involves calling resolve on each node.

To compile to bytecode, the Expression trait has a new method called compile_to_vm - https://github.com/vectordotdev/vector/blob/stephen/vrl-vm/lib/vrl/compiler/src/expression.rs#L58-L60. Compiling is now a process of calling compile_to_vm which generates the bytecode for the VM.

No existing tree walking code has been changed, so it is possible to run both tree walking and VM side by side to ensure that no actual functionality is changed.

Not all functions in the stdlib have been converted to run with the VM. The following are supported:

array contains del downcase exists flatten integer is_array is_boolean is_float is_integer is_null is_object is_regex is_string is_timestamp match_datadog_query merge now object parse_groks parse_json parse_key_value parse_regex parse_regex_all parse_url push slice starts_with to_string to_timestamp upcase

Both the VRL Cli and Tests projects work with the VM. A feature flag of vrl-vm needs to be set in order to use it.

Old text:

This is a very rough proof of concept for a ByteCode Virtual Machine and Vrl -> Bytecode compiler.

It is capable of running the following Vrl (and not much else):

.hostname = "vector"

if .status == "warning" {
  .thing = upcase(.hostname)
} else if .status == "notice" {
  .thung = downcase(.hostname)
} else {
  .nong = upcase(.hostname)
}

.matches = { "name": .message, "num": "2" }
.origin, .err = .hostname + "/" + .matches.name + "/" + .matches.num

Initial and very rough benchmarks indicate that it was able to reduce the runtime for 1,000,000 events from 17 seconds to 10.

I do need to double check these figures as I find them suprisingly optimistic. But, it does suggest that this approach could be a very beneficial avenue to further pursue.

https://github.com/timberio/vector/pull/3094 introduces the ability for Vector to automatically determine the optimal in_flight_limit value. RFC 1858 outlines this feature. Given the automatic nature of this feature, we need to take care to QA this more than usual.

Setup

1. First, this should be a black box, end to end, integration style of testing. @bruceg covered unit tests in #3094. We want to test real-world usage as much as possible.
2. While we could set up a real service, like Elasticsearch, I think we're better off creating a simple simulator that will give us more control over scenarios. This could build upon our http_test_server project.

Questions

We want to answer:

1. How quickly does Vector find the optimal value given the http sink defaults?
2. Does Vector correctly back off in the event of total service failure?
3. Does Vector correctly back off in the event of gradually increasing response times?
4. Does Vector correctly back off in the event of sudden sustained increasing response times?
5. Does Vector correctly ignore one-off errors that are not indicative of service degradation? Such as one-off network errors. We want to make sure Vector does not overreact in these situations.

Add amqp source and sink.

Closes: https://github.com/vectordotdev/vector/issues/670 Closes: https://github.com/vectordotdev/vector/issues/558

This PR begins tracking allocations w/ the allocation tracer. Based on the work from #14933 .

On Windows, Vector should be able to run as a service.

This must be done in two distinct steps:

First, the user must register vector as a service in the Service Control Manager. A new --service command-line parameter has been introduced (windows only), with multiple possible values:

• --service install install vector as a service
• --service uninstall uninstall the service
• --service start start the service
• --service stop stop the service

Then, vector must provide a service entry point and register itself with the Service Control Manager. A dependency to the windows-service has been introduced to handle service install and registration.

The main function now has been split into two distinct main (old main #[cfg(not(windows))] and a new main for #[cfg(windows)].

The new main for Windows first attempts to start as a service, and then falls back to console mode. The launch code has been extracted to a new service.rs file so that it could be called from the part that handles the startup of the service on Windows.

I think this PR still needs some work. I'm pretty new to Rust (coming from a C++ background), so my coding style might not fit your standards. I also need some suggestion on how to properly handle and wait for the sources to shutdown properly before stopping the service on Windows (vector_windows.rs:60)

This feature has been inspired from telegraf.

Bumps enum_dispatch from 0.3.8 to 0.3.9.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps once_cell from 1.16.0 to 1.17.0.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps pest_derive from 2.5.1 to 2.5.2.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

A note for the community

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Use Cases

Users wish to aggregate multiple lines in sources. Some sources support this like file, but others do not. There is the reduce transform but it suffers from two gaps: it is a performance bottleneck due to the lack of https://github.com/vectordotdev/vector/issues/11857 and it is a bit more awkward to use because the multiline config automatically groups lines given their source but this has to be manually done for the reduce transform.

Attempted Solutions

No response

Proposal

Add multiline config to all sources that can accept logs.

References

No response

Version

vector 0.26.0

A note for the community

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Use Cases

Users want to write data to Postgres from Vector.

Breaking this off from https://github.com/vectordotdev/vector/issues/939

Attempted Solutions

No response

Proposal

No response

References

• https://github.com/vectordotdev/vector/issues/6556
• https://github.com/vectordotdev/vector/issues/939

Version

vector 0.26.0