dandsager1 commented on a change in pull request #3008: STORM-3392 Topology
page should show components even if workers haven…
URL: https://github.com/apache/storm/pull/3008#discussion_r285168427
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File path:
storm-server/src/main/java/org/apache/storm/daemon/nimbus/Nimbus.java
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@@ -4129,6 +4136,83 @@ public TopologyPageInfo getTopologyPageInfo(String
topoId, String window, boolea
}
}
+ /**
+ * Add placeholder AggStats allowing topology page to show components
before AggStats are populated.
+ *
+ * @param topoPageInfo topology page info holding spout AggStats
+ * @param topology storm topology used to get spout names
+ */
+ private void maybeAddPlaceholderSpoutAggStats(TopologyPageInfo
topoPageInfo, StormTopology topology) {
+ if (topoPageInfo.get_id_to_spout_agg_stats().isEmpty()) {
+ Map<String, SpoutSpec> spouts = topology.get_spouts();
+ for (Entry<String, SpoutSpec> entry : spouts.entrySet()) {
+ // component
+ ComponentAggregateStats placeholderComponentStats = new
ComponentAggregateStats();
+ placeholderComponentStats.set_type(ComponentType.SPOUT);
+
+ // common aggregate
+ CommonAggregateStats commonStats = new CommonAggregateStats();
+ commonStats.set_num_executors(0);
+ commonStats.set_num_tasks(0);
+ commonStats.set_emitted(0);
+ commonStats.set_transferred(0);
+ commonStats.set_acked(0);
+ placeholderComponentStats.set_common_stats(commonStats);
+
+ // spout aggregate
+ SpoutAggregateStats spoutAggStats = new SpoutAggregateStats();
+ spoutAggStats.set_complete_latency_ms(0);
+ SpecificAggregateStats specificStats = new
SpecificAggregateStats();
+ specificStats.set_spout(spoutAggStats);
+ placeholderComponentStats.set_specific_stats(specificStats);
+
+ topoPageInfo.get_id_to_spout_agg_stats().put(entry.getKey(),
placeholderComponentStats);
+ }
+ }
+ }
+
+ /**
+ * Add placeholder AggStats allowing topology page to show components
before AggStats are populated.
+ *
+ * @param topoPageInfo topology page info holding bolt AggStats
+ * @param topology storm topology used to get bolt names
+ */
+ private void maybeAddPlaceholderBoltAggStats(TopologyPageInfo
topoPageInfo, StormTopology topology) {
+ if (topoPageInfo.get_id_to_bolt_agg_stats().isEmpty()) {
+ Map<String, Bolt> bolts = topology.get_bolts();
+ for (Entry<String, Bolt> entry : bolts.entrySet()) {
+ if (Utils.isSystemId(entry.getKey())) {
Review comment:
The idea was to show active topology components. It is easy to filter based
on the includeSys param passed into getTopologyPageInfo
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