Izeren commented on code in PR #27692:
URL: https://github.com/apache/flink/pull/27692#discussion_r2980852811
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flink-metrics/flink-metrics-otel/src/main/java/org/apache/flink/metrics/otel/OpenTelemetryMetricReporter.java:
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@@ -269,39 +298,136 @@ private Map<Metric, Long> takeLastValueSnapshots() {
return map;
}
- private @Nullable CompletableResultCode lastResult;
+ private volatile @Nullable CompletableFuture<Void> lastReportFuture;
@Override
public void report() {
- Collection<MetricData> metricData = collectAllMetrics();
+ final List<MetricData> metricData = List.copyOf(collectAllMetrics());
+ final int totalMetrics = metricData.size();
+ if (totalMetrics == 0) {
+ return;
+ }
+
+ // In order to avoid potentially large memory allocations on
`.partition()` call.
+ // doesn't require additional synchronized as it comes after
collectAllMetrics, which
+ // is synchronized
+ final int localBatchSize = Math.min(batchSize, totalMetrics);
+
+ final Iterable<List<MetricData>> batches = Lists.partition(metricData,
localBatchSize);
+ final int totalBatches = (totalMetrics + localBatchSize - 1) /
localBatchSize;
+ final List<CompletableResultCode> results = new
ArrayList<>(totalBatches);
+ for (final List<MetricData> batch : batches) {
+ results.add(exportBatch(batch));
+ }
Review Comment:
That was removed from the FLIP during review
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