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Fix lag metric for grouper #283

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Fix lag metric for grouper #283

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706d48f
partial fix: lag metric for raw spans grouper
samarth-gupta-traceable Nov 8, 2021
3251be6
typo fix
samarth-gupta-traceable Nov 8, 2021
5c8a554
Merge branch 'main' into fix_lag_metric_for_grouper
samarth-gupta-traceable Nov 8, 2021
f62492f
move lag to enricher from arrival to completion of enricher
samarth-gupta-traceable Nov 8, 2021
56ea3d7
Merge branch 'fix_lag_metric_for_grouper' of github.com:hypertrace/hy…
samarth-gupta-traceable Nov 8, 2021
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8 changes: 4 additions & 4 deletions ...icher-impl/src/main/java/org/hypertrace/traceenricher/enrichment/EnrichmentProcessor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -29,8 +29,8 @@
public class EnrichmentProcessor {

private static final Logger LOG = LoggerFactory.getLogger(EnrichmentProcessor.class);
private static final String ENRICHMENT_ARRIVAL_TIME = "enrichment.arrival.time";
private static final Timer enrichmentArrivalTimer =
private static final String ENRICHMENT_COMPLETION_TIME = "enrichment.completion.time";
private static final Timer enrichmentLagTimer =
PlatformMetricsRegistry.registerTimer(DataflowMetricUtils.ARRIVAL_LAG, new HashMap<>());

// Must use linked hashmap
Expand Down Expand Up @@ -68,8 +68,6 @@ public EnrichmentProcessor(List<EnricherInfo> enricherInfoList, ClientRegistry c

/** Enriches the Trace by Invoking various Enrichers registered in */
public void process(StructuredTrace trace) {
DataflowMetricUtils.reportArrivalLagAndInsertTimestamp(
trace, enrichmentArrivalTimer, ENRICHMENT_ARRIVAL_TIME);
AvroToJsonLogger.log(LOG, "Structured Trace before all the enrichment is: {}", trace);
for (Entry<String, Enricher> entry : enrichers.entrySet()) {
String metricKey = String.format("%s/%s", trace.getCustomerId(), entry.getKey());
Expand Down Expand Up @@ -101,6 +99,8 @@ public void process(StructuredTrace trace) {
}
}
AvroToJsonLogger.log(LOG, "Structured Trace after all the enrichment is: {}", trace);
DataflowMetricUtils.reportArrivalLagAndInsertTimestamp(
trace, enrichmentLagTimer, ENRICHMENT_COMPLETION_TIME);
}

private void applyEnricher(Enricher enricher, StructuredTrace trace) {
Expand Down
14 changes: 9 additions & 5 deletions ...-spans-grouper/src/main/java/org/hypertrace/core/rawspansgrouper/TraceEmitPunctuator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,7 @@ class TraceEmitPunctuator implements Punctuator {
private static final Logger logger = LoggerFactory.getLogger(TraceEmitPunctuator.class);
private static final Object mutex = new Object();

private static final Timer spansGrouperArrivalLagTimer =
private static final Timer grouperLagTimer =
PlatformMetricsRegistry.registerTimer(DataflowMetricUtils.ARRIVAL_LAG, new HashMap<>());
private static final String TRACES_EMITTER_COUNTER = "hypertrace.emitted.traces";
private static final ConcurrentMap<String, Counter> tenantToTraceEmittedCounter =
Expand Down Expand Up @@ -164,12 +164,14 @@ public void punctuate(long timestamp) {
}

recordSpansPerTrace(rawSpanList.size(), List.of(Tag.of("tenant_id", tenantId)));
Timestamps timestamps =
trackEndToEndLatencyTimestamps(timestamp, traceState.getTraceStartTimestamp());
Timestamps timestamps = null;
if (rawSpanList.size() > 0) {
timestamps =
trackEndToEndLatencyTimestamps(timestamp, rawSpanList.get(0).getReceivedTimeMillis());
}
StructuredTrace trace =
StructuredTraceBuilder.buildStructuredTraceFromRawSpans(
rawSpanList, traceId, tenantId, timestamps);

if (logger.isDebugEnabled()) {
logger.debug(
"Emit tenant_id=[{}], trace_id=[{}], spans_count=[{}]",
Expand Down Expand Up @@ -237,9 +239,11 @@ private Timestamps trackEndToEndLatencyTimestamps(
long currentTimestamp, long firstSpanTimestamp) {
Timestamps timestamps = null;
if (!(Math.random() * 100 <= dataflowSamplingPercent)) {
spansGrouperArrivalLagTimer.record(
//Reports the time it took from span arrival to till trace is created and just before it is emitted.
grouperLagTimer.record(
currentTimestamp - firstSpanTimestamp, TimeUnit.MILLISECONDS);
Map<String, TimestampRecord> records = new HashMap<>();
//Saves the span arrival time in trace, so that it can be used by services downstream to calculate similar lag.
records.put(
DataflowMetricUtils.SPAN_ARRIVAL_TIME,
new TimestampRecord(DataflowMetricUtils.SPAN_ARRIVAL_TIME, firstSpanTimestamp));
Expand Down