In normal operations there is a read/write race related to request
QueryOptions fields. An example race:
WARNING: DATA RACE
Read at 0x00c000836950 by goroutine 30:
github.com/hashicorp/consul/agent/structs.(*ServiceConfigRequest).CacheInfo()
/go/src/github.com/hashicorp/consul/agent/structs/config_entry.go:506 +0x109
github.com/hashicorp/consul/agent/cache.(*Cache).getWithIndex()
/go/src/github.com/hashicorp/consul/agent/cache/cache.go:262 +0x5c
github.com/hashicorp/consul/agent/cache.(*Cache).notifyBlockingQuery()
/go/src/github.com/hashicorp/consul/agent/cache/watch.go:89 +0xd7
Previous write at 0x00c000836950 by goroutine 147:
github.com/hashicorp/consul/agent/cache-types.(*ResolvedServiceConfig).Fetch()
/go/src/github.com/hashicorp/consul/agent/cache-types/resolved_service_config.go:31 +0x219
github.com/hashicorp/consul/agent/cache.(*Cache).fetch.func1()
/go/src/github.com/hashicorp/consul/agent/cache/cache.go:495 +0x112
This patch does a lightweight copy of the request struct so that the
embedded QueryOptions fields that are mutated during Fetch() are scoped
to just that one RPC.
The `Type` column used for giving details on what type of a service each
item is was removed in https://github.com/hashicorp/consul/pull/6075.
As a result of keeping long running branches in sync, this change was
partly reverted in an earlier PR (the type header was re-added)
https://github.com/hashicorp/consul/pull/5913 following a rebase.
This commit re-removes the `Type` table header (the `<th>`)
- yarn upgrade consul-api-double which includes `status/leader`
- add all the ember-data things required to call a new endpoint
- Pass the new leader variable through to the template
- use the new leader variable in the template to set a leader
- add acceptance testing to verify leaders are highlighted
- Change testing navigation/api requests to status/leader (on the node listing page, status/leader is now the last get request to
be called).
- Template whitespace commit (less indenting)
- adds a test to to assert no errors happen with an unelected leader
-Enable blocking queries by default
-Change assertion to check for the last PUT request, not just any request for session destruction from a node page.
Since we've now turned on blocking queries by default this means that a
second GET request is made after the PUT request that we are asserting
for but before the assertion itself, this meant the assertion failed. We
double checked this by turning off blocking queries for this test using
```
And settings from yaml
---
consul:client:
blocking: 0
---
```
which made the test pass again.
As moving forwards blocking queries will be on by default, we didn't
want to disable blocking queries for this test, so we now assert the
last PUT request specifically. This means we continue to assert that the
session has been destroyed but means we don't get into problems of
ordering of requests here
ember-cli-api-double has been upgraded for 3 things:
1. Use the correct configuration flags
2. Automatically include the necessary files to enable the api doubles
without requiring a server. This can be disabled to provide custom
functionality (so we can stitch our BDD style testing in with this)
3. When used statically, read the cookies from the users browser to
enable basic ad-hoc double editing (e.g. CONSUL_SERVICE_COUNT=100000)
Once upgraded we've now moved the config to the correct place, added a
new environment (staging) to use the static-style of doubles
The test environment continues to use custom cookie setting and url
checking so we disable this 'auto importing' by setting 'auto-import' to
false for the configuration for the addon.
We also added a couple of new package script targets to explicitly serve
or build the UI with the entirely static UI.
1. Rebuild the heathchecked-resource component now we can copy and paste
2. As the above rebuild came with new icons, we also swapped out 'most'
of the other areas where we were using these new icons, plus any icons
that were effected by the new icon placeholders
3. Begin to remove more and more of the project specific icons (now
replaced by the shared ones)
We'd rather 'play it safe' for our selection detection (which avoids
following links if you have some text selected). This commit adds an
additional check of 'more than 1 character' to the 'isSelected' check.
This is based on the fact that it's far quicker to type the character so
why would a user select on character? This therefore caters for any
fairly large (in the scheme of things) incidential mouse moves whilst
clicking a link.
Overall this is probably overkill
1. Re-focus the input element on phrase removal
2. Move all actions to `actions:`
3. Move to a form looking `value` rather than `items`
4. Move placeholder functionalit yinto the component
5. Force DDAU instead of two way binding with `slice` and `onchange`
6. Begin to deprecate the `searchable` interface
1. EventSources now pass themselves thorugh to the run function as a
second argument. This enables the use of arrow functions along with the
EventSources API
`(configuration, source) => source.close()`. Order of arguments could
potentially be switched at a later date.
2. BlockingEventSources now let you pass an 'event' through at
instantation time. If you do this, the event will immediately be dispatched
once the EventSource is opened. The usecase for this is for 'unfreezing' cached
BlockingEvents. This makes it easier to provide a cache for
BlockingEventSources by caching its data rather than the entire
BlockingEventSource itself.
```
new BlockingEventSource(
(config, source) => { /* something */ },
{
cursor: 1024, // this would also come from a cache
currentEvent: getFromSomeSortOfCache(eventSourceId) //this is the new bit
}
);
// more realistically
new BlockingEventSource(
(config, source) => { return data.findSomething(slug, config) },
getFromSomeSortOfCache(eventSourceId)
);
```
Makes listening to multiple events on one target slightly easier.
Adding events can be rolled up into passing through an object, and the
returned remove function removes all of the handlers in the object
For example:
```
//this.listen...
const remove = listeners.add(
{
'message': handler,
'error': handler
}
);
remove(); // removes all listeners in the object
```
The entire API for listeners is now becoming slightly overloaded, so
potentially we'd use this API always and remove the ability to use a
string/function pair.
Throughout the app we mutate the value of the root node classList on
navigation between separate pages (basically on URL change).
Every template has a unique classList for example `template-service
template-show` and `template-service template-list` etc etc.
When navigating between 2 pages, both pages using the same template yet
with different data, previoulsy we would entirely clear out the
`html.classList` and then refill it again with eaxctly the same classes.
This commit moves this to perform a diff previous to mutating the
classList, and then potentially no classList mutating is needed when
moving between 2 pages of the same template.
Dmitry Shemin