htran1 commented on a change in pull request #2804: GOBBLIN-955: Expose a
method to get average record size in KafkaExtra…
URL: https://github.com/apache/incubator-gobblin/pull/2804#discussion_r344804136
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File path:
gobblin-modules/gobblin-kafka-common/src/main/java/org/apache/gobblin/source/extractor/extract/kafka/KafkaExtractorStatsTracker.java
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@@ -295,6 +299,30 @@ public void emitTrackingEvents(MetricContext context,
MultiLongWatermark lowWate
}
}
+ /**
+ *
+ * @param partitionIdx the index of Kafka partition
+ * @return the average record size of records for a given {@link
KafkaPartition}
+ */
+ public long getAvgRecordSize(int partitionIdx) {
+ ExtractorStats stats =
this.statsMap.getOrDefault(this.partitions.get(partitionIdx), null);
+ if (stats != null) {
+ if (stats.getAvgRecordSize() != 0) {
+ //Average record size already computed.
+ return stats.getAvgRecordSize();
+ } else {
+ //Compute average record size
+ if (stats.getProcessedRecordCount() != 0) {
+ return stats.getPartitionTotalSize() /
stats.getProcessedRecordCount();
+ } else {
Review comment:
How about removing this else and the outermost else and replacing with a
return 0 at the end?
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