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Posted to issues@ambari.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2023/06/28 11:53:00 UTC

[jira] [Updated] (AMBARI-25963) Metrics metadata sync problem, accessing metrics which got created though other collector throws NPE

     [ https://issues.apache.org/jira/browse/AMBARI-25963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated AMBARI-25963:
------------------------------------
    Labels: pull-request-available  (was: )

> Metrics metadata sync problem, accessing metrics which got created though other collector throws NPE
> ----------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-25963
>                 URL: https://issues.apache.org/jira/browse/AMBARI-25963
>             Project: Ambari
>          Issue Type: Bug
>    Affects Versions: metrics-3.0.0
>            Reporter: Mohammad Arshad
>            Assignee: Mohammad Arshad
>            Priority: Critical
>              Labels: pull-request-available
>
> Metrics metadata sync problem, accessing metrics which got created though other collector throws NPE
> *Steps to reproduce the issue:*
> # Install ambari metrics with two collectors C1 and C2
> # Submit following metrics through collector C1
> {code:java}
> {
>   "metrics": [
>     {
>       "metricname": "cpu",
>       "appid": "skywalking",
>       "hostname": "hostXYZ",
>       "starttime": 1687944230477,
>       "metrics": {
>         "1687944230477": 100,
>         "1687944430477": 200
>       }
>     }
>   ]
> }
> {code}
> # http://COLLECTOR_C2_HOST:6188/ws/v1/timeline/metrics?metricNames=cpu&appId=skywalking&hostname=hostXYZ API call returns
> {noformat}
> {
>     "exception": "NullPointerException",
>     "javaClassName": "java.lang.NullPointerException"
> }
> {noformat}
> In collector C2 log file following message is logged
> {code}
> 2023-06-28 09:40:24,592 ERROR org.apache.ambari.metrics.core.timeline.discovery.TimelineMetricMetadataManager: TimelineMetricMetadataKey is null for : [7, 73, 67, -94, 19, -102, 82, 114, 100, -66, -22, 79, -51, -107, -73, 64, -36, -72, -42, -103]
> 2023-06-28 09:40:24,594 WARN org.apache.hadoop.yarn.webapp.GenericExceptionHandler: INTERNAL_SERVER_ERROR
> java.lang.NullPointerException
>         at org.apache.ambari.metrics.core.timeline.PhoenixHBaseAccessor.getLastTimelineMetricFromResultSet(PhoenixHBaseAccessor.java:457)
>         at org.apache.ambari.metrics.core.timeline.PhoenixHBaseAccessor.getLatestMetricRecords(PhoenixHBaseAccessor.java:1150)
>         at org.apache.ambari.metrics.core.timeline.PhoenixHBaseAccessor.getMetricRecords(PhoenixHBaseAccessor.java:966)
>         at org.apache.ambari.metrics.core.timeline.HBaseTimelineMetricsService.getTimelineMetrics(HBaseTimelineMetricsService.java:294)
>         at org.apache.ambari.metrics.webapp.TimelineWebServices.getTimelineMetrics(TimelineWebServices.java:267)
> {code}
> Same behaviour is there even after 5 minutes which is the default ambari metrics metadata sync interval.



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