Refreshing Live Data over HTTP is not working on VS Code

Following https://github.com/spring-projects/sts4/wiki/Live-Application-Information , configure boot-java.remote-apps to get live data over http, it failed to refresh data.

Originally I wanted to connect my app running on Azure, which only expose actuator endpoints over HTTP (JMX port is internal, no public access). It failed to refresh the data. Then I tried locally, it also failed with same error message and same sts-log.

settings:

    "boot-java.remote-apps": [
        // {
        //     "host": "my-app-name.azuremicroservices.io",
        //     "jmxurl": "https://my-app-name.azuremicroservices.io/actuator"
        // },
        {
            "host": "localhost",
            "jmxurl": "http://localhost:8080/actuator"
        }
    ],

exception location: https://github.com/spring-projects/sts4/blob/e9c813279f15f5f48144d5d8eb13c232e62c4134/headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/livehover/v2/SpringProcessConnectorOverHttp.java#L135

sts log:

15:56:50.895 [pool-10-thread-1] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorRemote - Creating RemoteStringBootApp: RemoteBootAppData [jmxurl=http://localhost:8080/actuator, host=localhost, urlScheme=https, port=443, manualConnect=false, keepChecking=true, processId=null, processName=null]
15:56:50.895 [pool-10-thread-1] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - connect to process: remote process - http://localhost:8080/actuator
15:56:50.895 [pool-10-thread-1] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - Connecting to process: remote process - http://localhost:8080/actuator - retry no: 0
15:56:50.895 [pool-10-thread-1] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorRemote - updating settings for remote processses to track - done
15:56:50.900 [pool-6-thread-4] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - refresh process: remote process - http://localhost:8080/actuator
15:56:50.900 [pool-6-thread-4] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - Refreshing data from Spring process: remote process - http://localhost:8080/actuator - retry no: 0
15:56:50.900 [pool-6-thread-4] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - refresh process: remote process - http://localhost:8080/actuator
15:56:50.900 [pool-6-thread-4] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - Refreshing data from Spring process: remote process - http://localhost:8080/actuator - retry no: 0
15:56:50.900 [pool-6-thread-4] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - refresh process: remote process - http://localhost:8080/actuator
15:56:50.900 [pool-6-thread-4] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - Refreshing data from Spring process: remote process - http://localhost:8080/actuator - retry no: 0
...
15:57:18.055 [pool-6-thread-5] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - Refreshing data from Spring process: remote process - http://localhost:8080/actuator - retry no: 10
15:57:21.069 [pool-6-thread-5] ERROR o.s.i.v.b.j.l.v.SpringProcessLiveDataExtractorOverJMX - Error parsing beans
org.springframework.web.client.HttpClientErrorException$NotFound: 404 : [no body]
	at org.springframework.web.client.HttpClientErrorException.create(HttpClientErrorException.java:113)
	at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:168)
	at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:122)
	at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
	at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:819)
	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:777)
	at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:711)
	at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:334)
	at org.springframework.ide.vscode.boot.java.livehover.v2.HttpActuatorConnection.getLiveMetrics(HttpActuatorConnection.java:87)
	at org.springframework.ide.vscode.boot.java.livehover.v2.SpringProcessLiveDataExtractorOverHttp.getLiveMetrics(SpringProcessLiveDataExtractorOverHttp.java:388)
	at org.springframework.ide.vscode.boot.java.livehover.v2.SpringProcessLiveDataExtractorOverHttp.retrieveLiveGcPausesMetricsData(SpringProcessLiveDataExtractorOverHttp.java:201)
	at org.springframework.ide.vscode.boot.java.livehover.v2.SpringProcessConnectorOverHttp.refreshGcPausesMetrics(SpringProcessConnectorOverHttp.java:120)
	at org.springframework.ide.vscode.boot.java.livehover.v2.SpringProcessConnectorService.lambda$scheduleRefresh$4(SpringProcessConnectorService.java:247)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
15:57:21.071 [pool-6-thread-5] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - problem occured during process live data refresh
java.lang.Exception: no live gc pauses metric data received, lets try again
	at org.springframework.ide.vscode.boot.java.livehover.v2.SpringProcessConnectorOverHttp.refreshGcPausesMetrics(SpringProcessConnectorOverHttp.java:135)
	at org.springframework.ide.vscode.boot.java.livehover.v2.SpringProcessConnectorService.lambda$scheduleRefresh$4(SpringProcessConnectorService.java:247)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
15:57:21.071 [pool-6-thread-5] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - disconnect from process: remote process - http://localhost:8080/actuator
15:57:21.071 [pool-6-thread-5] INFO  o.s.i.v.b.j.l.v.SpringProcessConnectorService - Disconnect from process: remote process - http://localhost:8080/actuator - retry no: 0

[Eskibear]

The remote process also shows up in the dashboards view for beans (not for request mappings though)

That’s fixed in https://github.com/microsoft/vscode-spring-boot-dashboard/commit/57ca22d7487cbfdd285f1661ace9a9531547a851 . It will be auto shipped in next pre-release version (probably 10 hours later from now).

[martinlippert]

@Eskibear I tried this with the latest Spring Tools extension CI build and the pre-release dashboard version.

It looks like the overall mechanism to fetch the data via HTTP seems to work, since I can see the live hovers showing up in the source code.

The remote process also shows up in the dashboards view for beans (not for request mappings though), but there are no beans showing up in the tree.