Improving logging to troubelshoot pipeline metrics problem (#91439) (#91627)

Author: masseyke

server/src/main/java/org/elasticsearch/ingest/CompoundProcessor.java

@@ -213,7 +213,7 @@ void innerExecute(int currentProcessor, IngestDocument ingestDocument, final BiC
         try {
             finalProcessor.execute(ingestDocument, (result, e) -> {
                 if (listenerHasBeenCalled.getAndSet(true)) {
-                    logger.warn("A listener was unexpectedly called more than once", new RuntimeException());
+                    logger.warn("A listener was unexpectedly called more than once", new RuntimeException(e));
                     assert false : "A listener was unexpectedly called more than once";
                 } else {
                     long ingestTimeInNanos = relativeTimeProvider.getAsLong() - startTimeInNanos;
@@ -233,7 +233,7 @@ void innerExecute(int currentProcessor, IngestDocument ingestDocument, final BiC
         } catch (Exception e) {
             long ingestTimeInNanos = relativeTimeProvider.getAsLong() - startTimeInNanos;
             if (postIngestHasBeenCalled.get()) {
-                logger.warn("Preventing postIngest from being called more than once", new RuntimeException());
+                logger.warn("Preventing postIngest from being called more than once", e);
                 assert false : "Attempt to call postIngest more than once";
             } else {
                 finalMetric.postIngest(ingestTimeInNanos);

server/src/main/java/org/elasticsearch/ingest/ConditionalProcessor.java

@@ -135,7 +135,7 @@ public void execute(IngestDocument ingestDocument, BiConsumer<IngestDocument, Ex
             metric.preIngest();
             processor.execute(ingestDocument, (result, e) -> {
                 if (listenerHasBeenCalled.getAndSet(true)) {
-                    logger.warn("A listener was unexpectedly called more than once", new RuntimeException());
+                    logger.warn("A listener was unexpectedly called more than once", new RuntimeException(e));
                     assert false : "A listener was unexpectedly called more than once";
                 } else {
                     long ingestTimeInNanos = relativeTimeProvider.getAsLong() - startTimeInNanos;

server/src/main/java/org/elasticsearch/ingest/IngestService.java

@@ -894,7 +894,7 @@ private void innerExecute(
         final AtomicBoolean listenerHasBeenCalled = new AtomicBoolean(false);
         ingestDocument.executePipeline(pipeline, (result, e) -> {
             if (listenerHasBeenCalled.getAndSet(true)) {
-                logger.warn("A listener was unexpectedly called more than once", new RuntimeException());
+                logger.warn("A listener was unexpectedly called more than once", new RuntimeException(e));
                 assert false : "A listener was unexpectedly called more than once";
             } else {
                 long ingestTimeInNanos = System.nanoTime() - startTimeInNanos;

server/src/main/java/org/elasticsearch/ingest/Pipeline.java

@@ -128,7 +128,7 @@ public void execute(IngestDocument ingestDocument, BiConsumer<IngestDocument, Ex
         metrics.preIngest();
         compoundProcessor.execute(ingestDocument, (result, e) -> {
             if (listenerHasBeenCalled.getAndSet(true)) {
-                logger.warn("A listener was unexpectedly called more than once", new RuntimeException());
+                logger.warn("A listener was unexpectedly called more than once", new RuntimeException(e));
                 assert false : "A listener was unexpectedly called more than once";
             } else {
                 long ingestTimeInNanos = relativeTimeProvider.getAsLong() - startTimeInNanos;