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https://issues.apache.org/jira/browse/STORM-2534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jungtaek Lim reassigned STORM-2534:
-----------------------------------
Assignee: Jungtaek Lim
> Visualization API missing stats/instances for "system" components
> -----------------------------------------------------------------
>
> Key: STORM-2534
> URL: https://issues.apache.org/jira/browse/STORM-2534
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Affects Versions: 2.0.0
> Reporter: Stephen Powis
> Assignee: Jungtaek Lim
>
> The topology visualization api end point (
> /api/v1/topology/TOPOLOGY-ID/visualization ) does not return correct "stats"
> values for "system" components __system and __acker.
> See the following example *correct* response for a spout or bolt within a
> topology, shorten for brevity. Under the stats key it lists all of the
> instances of that component that is deployed.
> {code}
> {
> "spout": {
> ...
> ":stats": [{
> ":host":
> "e54bb273-2a8a-4320-b23f-7c7ace52c961-10.153.0.30",
> ":port": 6700,
> ":uptime_secs": 0,
> ":transferred": {
> ...
> }
> }],
> ...
> },
> {code}
> See the following response for the __system and __acker components. They do
> *not* correctly list any entries under the stats key.
> {code}
> {
> "__system": {
> ":type": "spout",
> ":capacity": 0,
> ":latency": null,
> ":transferred": null,
> ":stats": [],
> ":link":
> "\/component.html?id=__system&topology_id=test-1-1495630798",
> ":inputs": []
> },
> "__acker": {
> ":type": "spout",
> ":capacity": 0,
> ":latency": null,
> ":transferred": null,
> ":stats": [],
> ":link":
> "\/component.html?id=__acker&topology_id=test-1-1495630798",
> ":inputs": [...]
> }
> }
> {code}
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