xiaohui-sun commented on a change in pull request #4136: [TE] catch exceptions
in dimension exploration
URL: https://github.com/apache/incubator-pinot/pull/4136#discussion_r277433785
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File path:
thirdeye/thirdeye-pinot/src/main/java/org/apache/pinot/thirdeye/detection/algorithm/DimensionWrapper.java
##########
@@ -198,15 +199,36 @@ public DetectionPipelineResult run() throws Exception {
List<MergedAnomalyResultDTO> anomalies = new ArrayList<>();
Map<String, Object> diagnostics = new HashMap<>();
Set<Long> lastTimeStamps = new HashSet<>();
- LOG.info("exploring {} metrics", nestedMetrics.size());
- for (MetricEntity metric : nestedMetrics) {
- for (Map<String, Object> properties : this.nestedProperties) {
- LOG.info("running detection for {}", metric.toString());
- DetectionPipelineResult intermediate = this.runNested(metric,
properties);
- lastTimeStamps.add(intermediate.getLastTimestamp());
- anomalies.addAll(intermediate.getAnomalies());
- diagnostics.put(metric.getUrn(), intermediate.getDiagnostics());
+ long totalNestedMetrics = nestedMetrics.size();
+ long successCount = 0; // record the number of successfully explored
dimensions
+ LOG.info("exploring {} metrics", totalNestedMetrics);
+ for (int i = 0; i < totalNestedMetrics; i++) {
+ if (i == EARLY_STOP_THRESHOLD && successCount == 0) {
+ // if for the first certain number of dimensions all failed, throw the
exception
+ throw new RuntimeException(String.format(
+ "Detection failed for first %d out of %d metric dimensions for
monitoring window %d to %d, stop dimension explore.",
+ i, totalNestedMetrics, this.getStartTime(), this.getEndTime()));
}
+ MetricEntity metric = nestedMetrics.get(i);
+ try {
+ LOG.info("running detection for metric urn {}. {}/{}",
metric.getUrn(), i + 1, totalNestedMetrics);
+ for (Map<String, Object> properties : this.nestedProperties) {
+ DetectionPipelineResult intermediate = this.runNested(metric,
properties);
+ lastTimeStamps.add(intermediate.getLastTimestamp());
+ anomalies.addAll(intermediate.getAnomalies());
+ diagnostics.put(metric.getUrn(), intermediate.getDiagnostics());
+ }
+ } catch (Exception e) {
+ LOG.warn("[DetectionConfigID{}] detecting anomalies for window {} to
{} failed for metric urn {}.",
+ this.config.getId(), this.start, this.end, metric.getUrn(), e);
+ }
+ successCount++;
+ }
+
+ if (successCount == 0) {
Review comment:
successCount == 0 && totalNestedMetrics > 0
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