Previously we would merge all reports in a 15-second window.
Now we use a 'quantum' of 3 seconds, similar to the single-user app.
E.g. a 30-node cluster will have 150 individual reports over 15
seconds, but the new code will merge 5 pre-merged reports plus 20-ish
very recent individual ones.
This limits the max heap size used for deserialising, since we only do
3 seconds at once per instance.
Individual reports are still put into the cache, but should get
displaced by the pre-merged ones under LRU.
In a multitenant system it is useful to be able to drill into which
tenants have the most or biggest reports.
Signed-off-by: Bryan Boreham <bryan@weave.works>
* Pass Go context down to Renderers
This is useful for cancellation or tracing.
* Add tracing spans to app
Also log things like number of nodes in Map, total number of reports.
- Add a new client in probe/kubernetes/client.go
which will be used to fetch details of Snapshot CRD
- Visualize VolumeSnapshot and VolumeSnapshotData
- Add adjacency between PV and VolumeSnapshot
- Add adjacency between VolumeSnapshot and VolumeSnapshotData
- Add snapshot filter to hide and show snapshots
Signed-off-by: Akash Srivastava <akash.srivastava@openebs.io>
"github.com/NYTimes/gziphandler" keeps a pool of gzip writers, which
saves on garbage-collection.
Also the old one, github.com/PuerkitoBio/ghost, is marked "Status : Unmaintained"
When we know we have the only reference to a Report or Node object we
can avoid copying the data to change it. Add "Unsafe" variants of
various Merge operations which mutate the receiver, and a new Merger
which takes advantage of them.
- Refactor dotted edge logic.
- Change Storage view to show storage components as well as all
the pods.
- Sentence case storage related variables.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
This will:
- Add StorageClass resource. Storage classes are mentioned
in the PVC spec. We're using storage class name from PVC spec to
add adjacency to the PVC node.
- Add square sheet shape for StorageClass.
- Add storage filter in the PODS topology.
Storage Filter will allow user to see distinct view of
stateful applications.
- Add visually distinct edge to show storage adjacency.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
This will
- Add Kubernetes volume resources such as PV, PVC.
- Add shapes for Kubernetes PV and PVC
- Add `Cylinder` shape for PV and `Dotted Cylinder` shape for PVC.
Signed-off-by: Satyam Zode <satyam.zode@openebs.io>
* Sentence cased text everywhere
Follows Weave Cloud's direction of sentence case on most things.
* More space between sorter caret and label
* Use full topology name for table header
Upgraded from 99c19923, branch release-3.0.
This required fetching or upgrading the following:
* k8s.io/api to kubernetes-1.9.1
* k8s.io/apimachinery to kubernetes-1.9.1
* github.com/juju/ratelimit to 1.0.1
* github.com/spf13/pflag to 4c012f6d
Also, update Scope's imports/function calls to be compatible with the new client.
It's always set to render.FilterUnconnectedPseudo, so we can simply
use that constant in the one function (RendererForTopology) that
looked at that value.
