maytasm commented on a change in pull request #9965:
URL: https://github.com/apache/druid/pull/9965#discussion_r439707410
##########
File path:
server/src/main/java/org/apache/druid/server/http/DataSourcesResource.java
##########
@@ -391,6 +396,123 @@ public Response getServedSegmentsInInterval(
return getServedSegmentsInInterval(dataSourceName, full != null,
theInterval::contains);
}
+ @GET
+ @Path("/{dataSourceName}/loadstatus")
+ @Produces(MediaType.APPLICATION_JSON)
+ @ResourceFilters(DatasourceResourceFilter.class)
+ public Response getDatasourceLoadstatus(
+ @PathParam("dataSourceName") String dataSourceName,
+ @QueryParam("interval") @Nullable final String interval,
+ @QueryParam("forceMetadataRefresh") @Nullable final Boolean
forceMetadataRefresh,
+ @QueryParam("simple") @Nullable final String simple,
+ @QueryParam("full") @Nullable final String full
+ )
+ {
+ final Interval theInterval;
+ if (interval == null) {
+ long defaultIntervalOffset = 14 * 24 * 60 * 60 * 1000;
+ long currentTimeInMs = System.currentTimeMillis();
+ theInterval = Intervals.utc(currentTimeInMs - defaultIntervalOffset,
currentTimeInMs);
+ } else {
+ theInterval = Intervals.of(interval.replace('_', '/'));
+ }
+
+ boolean requiresMetadataStorePoll = forceMetadataRefresh == null ? true :
forceMetadataRefresh;
+
+ Optional<Iterable<DataSegment>> segments =
segmentsMetadataManager.iterateAllUsedNonOvershadowedSegmentsForDatasourceInterval(
+ dataSourceName,
+ theInterval,
+ requiresMetadataStorePoll
+ );
+
+ if (!segments.isPresent()) {
+ return logAndCreateDataSourceNotFoundResponse(dataSourceName);
+ }
+
+ if (simple != null) {
+ // Calculate resposne for simple mode
+ Map<SegmentId, SegmentLoadInfo> segmentLoadInfos =
serverInventoryView.getSegmentLoadInfos();
+ int numUnloadedSegments = 0;
+ for (DataSegment segment : segments.get()) {
+ if (!segmentLoadInfos.containsKey(segment.getId())) {
+ numUnloadedSegments++;
+ }
+ }
+ return Response.ok(
+ ImmutableMap.of(
+ dataSourceName,
+ numUnloadedSegments
+ )
+ ).build();
+ } else if (full != null) {
+ // Calculate resposne for full mode
+ final Map<String, Object2LongMap<String>>
underReplicationCountsPerDataSourcePerTier = new HashMap<>();
+ final List<Rule> rules =
metadataRuleManager.getRulesWithDefault(dataSourceName);
+ final Table<SegmentId, String, Integer> segmentsInCluster =
HashBasedTable.create();
+ final DateTime now = DateTimes.nowUtc();
+
+ for (DataSegment segment : segments.get()) {
+ for (DruidServer druidServer : serverInventoryView.getInventory()) {
+ String tier = druidServer.getTier();
+ SegmentId segmentId = segment.getId();
+ DruidDataSource druidDataSource =
druidServer.getDataSource(dataSourceName);
+ if (druidDataSource != null && druidDataSource.getSegment(segmentId)
!= null) {
+ Integer numReplicants = segmentsInCluster.get(segmentId, tier);
+ if (numReplicants == null) {
+ numReplicants = 0;
+ }
+ segmentsInCluster.put(segmentId, tier, numReplicants + 1);
+ }
+ }
+ }
+ for (DataSegment segment : segments.get()) {
+ for (final Rule rule : rules) {
+ if (!(rule instanceof LoadRule && rule.appliesTo(segment, now))) {
+ continue;
+ }
+ ((LoadRule) rule)
+ .getTieredReplicants()
+ .forEach((final String tier, final Integer ruleReplicants) -> {
+ Integer currentReplicantsRetVal =
segmentsInCluster.get(segment.getId(), tier);
+ int currentReplicants = currentReplicantsRetVal == null ? 0 :
currentReplicantsRetVal;
+ Object2LongMap<String> underReplicationPerDataSource =
underReplicationCountsPerDataSourcePerTier
+ .computeIfAbsent(tier, ignored -> new
Object2LongOpenHashMap<>());
+ ((Object2LongOpenHashMap<String>)
underReplicationPerDataSource)
+ .addTo(dataSourceName, Math.max(ruleReplicants -
currentReplicants, 0));
+ });
+ break; // only the first matching rule applies
+ }
+ }
+ return Response.ok(underReplicationCountsPerDataSourcePerTier).build();
+ } else {
+ // Calculate resposne for default mode
Review comment:
Done
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