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fix: revise health metrics inflightBytes to become inflightBytesMax #14613

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Merged
agrawal-siddharth merged 1 commit into from
Oct 13, 2026
Merged

fix: revise health metrics inflightBytes to become inflightBytesMax #14613

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19 changes: 16 additions & 3 deletions ...-bigquerystorage/src/main/java/com/google/cloud/bigquery/storage/v1/ConnectionWorker.java
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Original file line number Diff line number Diff line change
Expand Up @@ -326,6 +326,9 @@ class HealthCheckMetrics {
@GuardedBy("lock")
private long windowedQueuedRetriesMax;

@GuardedBy("lock")
private long windowedInflightBytesMax;

private long windowedConnectionAttemptCount;
private long windowedConnectionClosedCount;

Expand All @@ -338,6 +341,13 @@ void updateWindowedQueuedRequestsMax(long currentQueueLength, long currentRetryC
}
}

@GuardedBy("lock")
void updateInflightBytesMax(long currentInflightBytes) {
if (currentInflightBytes > windowedInflightBytesMax) {
windowedInflightBytesMax = currentInflightBytes;
}
}
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agrawal-siddharth marked this conversation as resolved.

void updateResponseWait(Instant sendInstant) {
long currentWaitTime = Duration.between(sendInstant, Instant.now()).toMillis();
if (currentWaitTime > windowedMilliResponseWaitTimeMax) {
Expand Down Expand Up @@ -380,7 +390,7 @@ class HealthCheckFields {
long responseCount;
long queuedRequestCountMax;
long queuedRetryCountMax; // How many active waiting or inflight requests are retries
long inflightBytes;
long inflightBytesMax;
long connectionAttemptCount;
long connectionClosedCount;
boolean isConnected; // snapshot at instant metrics are gathered
Expand All @@ -399,7 +409,7 @@ private void gatherHealthCheckMetrics(HealthCheckFields healthCheckFields) {
healthCheckFields.queuedRequestCountMax = windowedQueuedRequestsMax;
healthCheckFields.queuedRetryCountMax = windowedQueuedRetriesMax;
healthCheckFields.msecLongestResponseWaitTime = windowedMilliResponseWaitTimeMax;
healthCheckFields.inflightBytes = inflightBytes.get();
healthCheckFields.inflightBytesMax = windowedInflightBytesMax;
healthCheckFields.requestsSentCount = windowedRequestsSent;
healthCheckFields.responseCount = windowedResponsesAcked;
if (HEALTH_CHECK_INTERVAL.toMillis() > 0) {
Expand All @@ -425,7 +435,7 @@ private void gatherHealthCheckMetrics(HealthCheckFields healthCheckFields) {
*/
private boolean checkThresholds(HealthCheckFields healthCheckFields) {
if ((healthCheckFields.queuedRequestCountMax >= queuedRequestsThreshold)
|| (healthCheckFields.inflightBytes >= queuedBytesThreshold)
|| (healthCheckFields.inflightBytesMax >= queuedBytesThreshold)
|| (healthCheckFields.msecLongestResponseWaitTime >= responseWaitTimeThreshold.toMillis())
|| (healthCheckFields.msecMaxLatency >= latencyThreshold.toMillis())
|| (healthCheckFields.connectionAttemptCount >= connectionAttemptThreshold)
Expand Down Expand Up @@ -479,6 +489,7 @@ private void resetWindowedMetrics() {
windowedConnectionClosedCount = 0;
windowedQueuedRequestsMax = 0;
windowedQueuedRetriesMax = 0;
windowedInflightBytesMax = 0;
}

/*
Expand Down Expand Up @@ -785,6 +796,7 @@ private void addMessageToWaitingQueue(
AppendRequestAndResponse requestWrapper, boolean addToFront) {
this.inflightRequests.incrementAndGet();
this.inflightBytes.addAndGet(requestWrapper.messageSize);
healthCheckMetrics.updateInflightBytesMax(this.inflightBytes.get());
hasMessageInWaitingQueue.signal();
requestProfilerHook.startOperation(
RequestProfiler.OperationName.WAIT_QUEUE, requestWrapper.requestUniqueId);
Expand Down Expand Up @@ -932,6 +944,7 @@ private ApiFuture<AppendRowsResponse> appendInternal(
requestProfilerHook.startOperation(RequestProfiler.OperationName.WAIT_QUEUE, requestUniqueId);
this.inflightRequests.incrementAndGet();
this.inflightBytes.addAndGet(requestWrapper.messageSize);
healthCheckMetrics.updateInflightBytesMax(this.inflightBytes.get());
requestWrapper.placedInWaitingQueueTime = Instant.now();
waitingRequestQueue.addLast(requestWrapper);
healthCheckMetrics.updateWindowedQueuedRequestsMax(
Expand Down
8 changes: 4 additions & 4 deletions ...querystorage/src/test/java/com/google/cloud/bigquery/storage/v1/ConnectionWorkerTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -1296,7 +1296,7 @@ void testHealthCheck() throws Exception {
healthCheckFields.msecLongestResponseWaitTime > 1
&& healthCheckFields.msecLongestResponseWaitTime < msecResponseDelay);
assertEquals(appendCount, healthCheckFields.queuedRequestCountMax);
assertEquals(appendCount * sizePerRequest, healthCheckFields.inflightBytes);
assertEquals(appendCount * sizePerRequest, healthCheckFields.inflightBytesMax);
assertEquals("MULTIPLEXING", healthCheckFields.streamName);
assertEquals(connectionWorker.getWriterId(), healthCheckFields.writerId);

Expand Down Expand Up @@ -1363,7 +1363,7 @@ void testHealthCheckThresholds() throws Exception {
fields.responseCount = 0;
fields.queuedRequestCountMax = 0;
fields.queuedRetryCountMax = 0;
fields.inflightBytes = 0;
fields.inflightBytesMax = 0;
fields.connectionAttemptCount = 0;
fields.connectionClosedCount = 0;
fields.isConnected = false;
Expand Down Expand Up @@ -1415,9 +1415,9 @@ void testHealthCheckThresholds() throws Exception {
fields.queuedRetryCountMax = 0;

// inflightBytes >= queuedBytesThreshold (52428800)
fields.inflightBytes = 50 * 1024 * 1024;
fields.inflightBytesMax = 50 * 1024 * 1024;
assertEquals(true, connectionWorker.checkTestOnlyHealthCheckThresholds(fields));
fields.inflightBytes = 0;
fields.inflightBytesMax = 0;

// connectionAttemptCount >= connectionAttemptThreshold (1)
fields.connectionAttemptCount = 1;
Expand Down
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