uds5501 commented on code in PR #18314:
URL: https://github.com/apache/druid/pull/18314#discussion_r2235758677
##########
server/src/main/java/org/apache/druid/client/BrokerServerView.java:
##########
@@ -436,4 +449,55 @@ public List<ImmutableDruidServer> getDruidServers()
.map(queryableDruidServer ->
queryableDruidServer.getServer().toImmutableDruidServer())
.collect(Collectors.toList());
}
+
+ private void incrementSegmentCount(RowKey key)
+ {
+ totalSegmentAddCount.compute(key, (k, currentValue) -> currentValue ==
null ? 1 : currentValue + 1);
+ }
+
+ @Override
+ public Map<RowKey, Long> getSegmentAddedCount()
+ {
+ final ConcurrentHashMap<RowKey, Long> total = totalSegmentAddCount;
+ synchronized (totalSegmentAddCount) {
+ final Map<RowKey, Long> delta = getDeltaValues(total,
previousSegmentAddCount);
+ previousSegmentAddCount = total;
+ return delta;
+ }
+ }
+
+ @Override
+ public Map<RowKey, Long> getSegmentRemovedCount()
+ {
+ final ConcurrentHashMap<RowKey, Long> total = totalSegmentRemoveCount;
+ synchronized (totalSegmentRemoveCount) {
+ final Map<RowKey, Long> delta = getDeltaValues(total,
previousSegmentRemoveCount);
+ previousSegmentRemoveCount = total;
+ return delta;
+ }
+ }
+
+ private void decrementSegmentCount(RowKey key)
+ {
+ totalSegmentRemoveCount.compute(key, (k, currentValue) -> currentValue ==
null ? 1 : currentValue + 1);
+ }
+
+ private Map<RowKey, Long> getDeltaValues(Map<RowKey, Long> total,
Map<RowKey, Long> prev)
+ {
+ final Map<RowKey, Long> deltaValues = new HashMap<>();
+ total.forEach(
+ (dataSource, totalCount) -> deltaValues.put(
+ dataSource,
+ totalCount - prev.getOrDefault(dataSource, 0L)
+ )
+ );
+ return deltaValues;
+ }
+
+ private static RowKey getMetricKey(final DataSegment segment)
+ {
+ return RowKey.with(Dimension.DATASOURCE, segment.getDataSource())
+ .with(Dimension.INTERVAL,
String.valueOf(segment.getInterval()))
+ .and(Dimension.VERSION, segment.getVersion());
Review Comment:
Are you expecting a full message like `{server_name} service added/removed
{segment_id} segment` in the `description`?
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