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https://issues.apache.org/jira/browse/KAFKA-9675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bruno Cadonna closed KAFKA-9675.
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> RocksDB metrics reported always at zero
> ---------------------------------------
>
> Key: KAFKA-9675
> URL: https://issues.apache.org/jira/browse/KAFKA-9675
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.4.0
> Reporter: Michael Viamari
> Assignee: Bruno Cadonna
> Priority: Blocker
> Fix For: 2.6.0, 2.4.2, 2.5.1
>
>
> The rocksdb metrics listed under {{stream-state-metrics}} are reported as
> zero for all metrics and all rocksdb instances. The metrics are present in
> JMX, but are always zero.
> The streams state is configured with {{MetricsRecordingLevel}} at {{debug}}.
> I am able to see metrics with appropriate values in the
> {{stream-rocksdb-window-state-metrics}}, {{stream-record-cache-metrics}},
> {{stream-task-metrics}}, and {{stream-processor-node-metrics}}.
> Additionally, my DEBUG logs show the appropriate messages for recording
> events, i.e.
> {{org.apache.kafka.streams.state.internals.metrics.RocksDBMetricsRecorder
> [RocksDB Metrics Recorder for agg-store] Recording metrics for store
> agg-store}}
> It happens that all of my rocksdb instances are windowed stores, not key
> value stores, so I haven't been able to check if this issue is unique to
> windowed stores.
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