Assorted bugfixes

TrafficCapture/trafficReplayer/src/main/java/org/opensearch/migrations/replay/HttpByteBufFormatter.java

@@ -171,7 +171,11 @@ public static HttpMessage parseHttpMessageFromBufs(HttpMessageType msgType, Stre
             }
         });
 
-        return channel.readInbound();
+        try {
+            return channel.readInbound();
+        } finally {
+            channel.finishAndReleaseAll();
+        }
     }
 
     public static FullHttpRequest parseHttpRequestFromBufs(Stream<ByteBuf> byteBufStream, boolean releaseByteBufs) {

TrafficCapture/trafficReplayer/src/main/java/org/opensearch/migrations/replay/TrafficReplayer.java

@@ -288,6 +288,7 @@
                 RootOtelContext.initializeOpenTelemetryWithCollectorOrAsNoop(params.otelCollectorEndpoint, "replay"),
                 contextTrackers);
 
+        ActiveContextMonitor activeContextMonitor = null;
         try (var blockingTrafficSource = TrafficCaptureSourceFactory.createTrafficCaptureSource(topContext, params,
                 Duration.ofSeconds(params.lookaheadTimeSeconds));
              var authTransformer = buildAuthTransformerFactory(params))
@@ -301,13 +302,14 @@
                     new TransformationLoader().getTransformerFactoryLoader(uri.getHost(), params.userAgent, transformerConfig),
                     params.allowInsecureConnections, params.numClientThreads, params.maxConcurrentRequests,
                     orderedRequestTracker);
-            var activeContextMonitor = new ActiveContextMonitor(
+            activeContextMonitor = new ActiveContextMonitor(
                     globalContextTracker, perContextTracker, orderedRequestTracker, 64,
                     cf->cf.formatAsString(TrafficReplayerTopLevel::formatWorkItem), activeContextLogger);
-            scheduledExecutorService.scheduleAtFixedRate(()->{
-                activeContextLogger.atInfo().setMessage(()->"Total requests outstanding: " + tr.requestWorkTracker.size()).log();
-                activeContextMonitor.run();
-                },
+            ActiveContextMonitor finalActiveContextMonitor = activeContextMonitor;
+            scheduledExecutorService.scheduleAtFixedRate(() -> {
+                        activeContextLogger.atInfo().setMessage(() -> "Total requests outstanding: " + tr.requestWorkTracker.size()).log();
+                        finalActiveContextMonitor.run();
+                    },
                     ACTIVE_WORK_MONITOR_CADENCE_MS, ACTIVE_WORK_MONITOR_CADENCE_MS, TimeUnit.MILLISECONDS);
 
             setupShutdownHookForReplayer(tr);
@@ -318,6 +320,13 @@
             log.info("Done processing TrafficStreams");
         } finally {
             scheduledExecutorService.shutdown();
+            if (activeContextMonitor != null) {
+                var acmLevel = globalContextTracker.getActiveScopesByAge().findAny().isPresent() ?
+                        Level.ERROR : Level.INFO;
+                activeContextLogger.atLevel(acmLevel).setMessage(()->"Outstanding work after shutdown...").log();
+                activeContextMonitor.run();
+                activeContextLogger.atLevel(acmLevel).setMessage(()->"[end of run]]").log();
+            }
         }
     }
 

TrafficCapture/trafficReplayer/src/main/java/org/opensearch/migrations/replay/traffic/source/TrafficStreamLimiter.java

@@ -42,16 +42,29 @@
 
     @SneakyThrows
     private void consumeFromQueue() {
-        while (!stopped.get()) {
-            var workItem = workQueue.take();
-            log.atDebug().setMessage(()->"liveTrafficStreamCostGate.permits: {} acquiring: {}")
-                    .addArgument(liveTrafficStreamCostGate.availablePermits())
-                    .addArgument(workItem.cost)
-                    .log();
-            liveTrafficStreamCostGate.acquire(workItem.cost);
-            log.atDebug().setMessage(()->"Acquired liveTrafficStreamCostGate (available=" +
-                    liveTrafficStreamCostGate.availablePermits()+") to process " + workItem.context).log();
-            workItem.task.accept(workItem);
+        WorkItem workItem = null;
+        try {
+            while (!stopped.get()) {
+                workItem = workQueue.take();
+                log.atDebug().setMessage(() -> "liveTrafficStreamCostGate.permits: {} acquiring: {}")
+                        .addArgument(liveTrafficStreamCostGate.availablePermits())
+                        .addArgument(workItem.cost)
+                        .log();
+                liveTrafficStreamCostGate.acquire(workItem.cost);
+                WorkItem finalWorkItem = workItem;
+                log.atDebug().setMessage(() -> "Acquired liveTrafficStreamCostGate (available=" +
+                        liveTrafficStreamCostGate.availablePermits() + ") to process " + finalWorkItem.context).log();
+                workItem.task.accept(workItem);
+                workItem = null;
+            }
+        } catch (InterruptedException e) {
+            if (!stopped.get()) {
+                WorkItem finalWorkItem = workItem;
+                log.atError().setMessage(()->"consumeFromQueue() was interrupted with " +
+                                (finalWorkItem != null ? "an active task and " : "") +
+                        workQueue.size() + " enqueued items").log();
+            }
+            throw e;
         }
     }
 

TrafficCapture/trafficReplayer/src/main/resources/log4j2.properties

@@ -13,7 +13,7 @@ appender.console.layout.pattern = [%-5level] %d{yyyy-MM-dd HH:mm:ss,SSS}{UTC} [%
 appender.ReplayerLogFile.type = RollingFile
 appender.ReplayerLogFile.name = ReplayerLogFile
 appender.ReplayerLogFile.fileName = logs/replayer.log
-appender.ReplayerLogFile.filePattern = logs/%d{yyyy-MM}{UTC}/replayer-%d{yyyy-MM-dd-HH-mm}{UTC}-%i.log
+appender.ReplayerLogFile.filePattern = logs/%d{yyyy-MM}{UTC}/replayer-%d{yyyy-MM-dd-HH-mm}{UTC}-%i.log.gz
 appender.ReplayerLogFile.layout.type = PatternLayout
 appender.ReplayerLogFile.layout.pattern = [%-5level] %d{yyyy-MM-dd HH:mm:ss,SSS}{UTC} [%t] %c{1} - %msg%equals{ ctx=%mdc}{ ctx={}}{}%n
 appender.ReplayerLogFile.policies.type = Policies