The primary bug here is in the streaming subsystem that makes the overall v1/health/service/:service request behave incorrectly when servicing a blocking request with a filter provided.
There is a secondary non-streaming bug being fixed here that is much less obvious related to when to update the `reply` variable in a `blockingQuery` evaluation. It is unlikely that it is triggerable in practical environments and I could not actually get the bug to manifest, but I fixed it anyway while investigating the original issue.
Simple reproduction (streaming):
1. Register a service with a tag.
curl -sL --request PUT 'http://localhost:8500/v1/agent/service/register' \
--header 'Content-Type: application/json' \
--data-raw '{ "ID": "ID1", "Name": "test", "Tags":[ "a" ], "EnableTagOverride": true }'
2. Do an initial filter query that matches on the tag.
curl -sLi --get 'http://localhost:8500/v1/health/service/test' --data-urlencode 'filter=a in Service.Tags'
3. Note you get one result. Use the `X-Consul-Index` header to establish
a blocking query in another terminal, this should not return yet.
curl -sLi --get 'http://localhost:8500/v1/health/service/test?index=$INDEX' --data-urlencode 'filter=a in Service.Tags'
4. Re-register that service with a different tag.
curl -sL --request PUT 'http://localhost:8500/v1/agent/service/register' \
--header 'Content-Type: application/json' \
--data-raw '{ "ID": "ID1", "Name": "test", "Tags":[ "b" ], "EnableTagOverride": true }'
5. Your blocking query from (3) should return with a header
`X-Consul-Query-Backend: streaming` and empty results if it works
correctly `[]`.
Attempts to reproduce with non-streaming failed (where you add `&near=_agent` to the read queries and ensure `X-Consul-Query-Backend: blocking-query` shows up in the results).
* add a sample
* Consul cluster test
* add build dockerfile
* add tests to cover mixed versions tests
* use flag to pass docker image name
* remove default config and rely on flags to inject the right image to test
* add cluster abstraction
* fix imports and remove old files
* fix imports and remove old files
* fix dockerIgnore
* make a `Node interface` and encapsulate ConsulContainer
* fix a test bug where we only check the leader against a single node.
* add upgrade tests to CI
* fix yaml alignment
* fix alignment take 2
* fix flag naming
* fix image to build
* fix test run and go mod tidy
* add a debug command
* run without RYUK
* fix parallel run
* add skip reaper code
* make tempdir in local dir
* chmod the temp dir to 0777
* chmod the right dir name
* change executor to use machine instead of docker
* add docker layer caching
* remove setup docker
* add gotestsum
* install go version
* use variable for GO installed version
* add environment
* add environment in the right place
* do not disable RYUK in CI
* add service check to tests
* assertions outside routines
* add queryBackend to the api query meta.
* check if we are using the right backend for those tests (streaming)
* change the tested endpoint to use one that have streaming.
* refactor to test multiple scenarios for streaming
* Fix dockerfile
Co-authored-by: FFMMM <FFMMM@users.noreply.github.com>
* rename Clients to clients
Co-authored-by: FFMMM <FFMMM@users.noreply.github.com>
* check if cluster have 0 node
* tidy code and add some doc strings
* use uuid instead of random string
* add doc strings to tests
* add queryBackend to the api query meta.
* add a changelog
* fix for api backend query
* add missing require
* fix q.QueryBackend
* Revert "fix q.QueryBackend"
This reverts commit cd0e5f7b1a1730e191673d624f8e89b591871c05.
* fix circle ci config
* tidy go mod after merging main
* rename package and fix test scenario
* update go download url
* address review comments
* rename flag in CI
* add readme to the upgrade tests
* fix golang download url
* fix golang arch downloaded
* fix AddNodes to handle an empty cluster case
* use `parseBool`
* rename circle job and add comment
* update testcontainer to 0.13
* fix circle ci config
* remove build docker file and use `make dev-docker` instead
* Apply suggestions from code review
Co-authored-by: Dan Upton <daniel@floppy.co>
* fix a typo
Co-authored-by: FFMMM <FFMMM@users.noreply.github.com>
Co-authored-by: Dan Upton <daniel@floppy.co>
* update raft to v1.3.7
* add changelog
* fix compilation error
* fix HeartbeatTimeout
* fix ElectionTimeout to reload only if value is valid
* fix default values for `ElectionTimeout` and `HeartbeatTimeout`
* fix test defaults
* bump raft to v1.3.8
Adds a timeout (deadline) to client RPC calls, so that streams will no longer hang indefinitely in unstable network conditions.
Co-authored-by: kisunji <ckim@hashicorp.com>
R.B. Boyer