THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Status
Current state: [Under Discussion]
Discussion thread: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/DISCUSS-FLIP-75-Flink-Web-UI-Improvement-Proposal-td33540.html
JIRA:
Released: <Flink Version>
Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
Motivation
There is a metric tab in each taskmanager page, but there is no metric data in the job manager, it would be better for users to monitor the cluster with job manager metrics.
Proposed Changes
Add a metric page in job manager, and display the job manager metrics
Frontend Design
Display metrics inside JVM, outside JVM and GC
REST API proposal:
The API provided now could only get the metric key without a value.
- add JobManager metrics in MetricStore
- show JobManager memory and Garbage collectors
- after FLINK-9741 finished, show it according to flip-6
- url: /jobmanager/metrics/info
- response:
{ "type" : "object", "id" : "urn:jsonschema:org:apache:flink:runtime:rest:messages:cluster:JobManagerMetricsInfo", "properties" : { "heapUsed" : { "type" : "integer" }, "heapCommitted" : { "type" : "integer" }, "heapMax" : { "type" : "integer" }, "nonHeapUsed" : { "type" : "integer" }, "nonHeapCommitted" : { "type" : "integer" }, "nonHeapMax" : { "type" : "integer" }, "directCount" : { "type" : "integer" }, "directUsed" : { "type" : "integer" }, "directMax" : { "type" : "integer" }, "mappedCount" : { "type" : "integer" }, "mappedUsed" : { "type" : "integer" }, "mappedMax" : { "type" : "integer" }, "garbageCollectors" : { "type" : "array", "items" : { "type" : "object", "id" : "urn:jsonschema:org:apache:flink:runtime:rest:messages:cluster:JobManagerMetricsInfo:GarbageCollectorInfo", "properties" : { "name" : { "type" : "string" }, "count" : { "type" : "integer" }, "time" : { "type" : "integer" } } } } } } |