mosche commented on code in PR #22157:
URL: https://github.com/apache/beam/pull/22157#discussion_r925718099
##########
runners/spark/src/main/java/org/apache/beam/runners/spark/structuredstreaming/metrics/sink/CodahaleGraphiteSink.java:
##########
@@ -21,14 +21,69 @@
import java.util.Properties;
import
org.apache.beam.runners.spark.structuredstreaming.metrics.AggregatorMetric;
import
org.apache.beam.runners.spark.structuredstreaming.metrics.WithMetricsSupport;
+import org.apache.spark.SecurityManager;
import org.apache.spark.metrics.sink.Sink;
-/** A Spark {@link Sink} that is tailored to report {@link AggregatorMetric}
metrics to Graphite. */
-public class CodahaleGraphiteSink extends
org.apache.spark.metrics.sink.GraphiteSink {
+/**
+ * A {@link Sink} for <a
href="https://spark.apache.org/docs/latest/monitoring.html#metrics";>Spark's
+ * metric system</a> that is tailored to report {@link AggregatorMetric}s to
Graphite.
+ *
+ * <p>The sink is configured using Spark configuration parameters, for example:
+ *
+ * <pre>{@code
+ *
"spark.metrics.conf.*.sink.graphite.class"="org.apache.beam.runners.spark.structuredstreaming.metrics.sink.CodahaleGraphiteSink"
+ * "spark.metrics.conf.*.sink.graphite.host"="<graphite_hostname>"
+ * "spark.metrics.conf.*.sink.graphite.port"=<graphite_listening_port>
+ * "spark.metrics.conf.*.sink.graphite.period"=10
+ * "spark.metrics.conf.*.sink.graphite.unit"=seconds
+ * "spark.metrics.conf.*.sink.graphite.prefix"="<optional_prefix>"
+ *
"spark.metrics.conf.*.sink.graphite.regex"="<optional_regex_to_send_matching_metrics>"
+ * }</pre>
+ */
+public class CodahaleGraphiteSink implements Sink {
Review Comment:
I don't wanna introduce any breaking changes in this PR
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