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tts: make ensure route abort-aware and reduce abort log noise

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This commit is contained in:
Richard R 2026-05-21 16:46:47 -06:00
parent 3c25c93e8b
commit 3ebcb3e6fd
1 changed files with 50 additions and 20 deletions
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70
src/app/api/tts/segments/ensure/route.ts
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@ -329,6 +329,16 @@ export async function POST(request: NextRequest) {
};
for (const segment of normalized) {
if (request.signal.aborted) {
console.info('[tts-segments/ensure] request aborted; stopping remaining segment processing', {
requestId,
documentId: parsed.documentId,
completedSoFar: manifest.length,
totalRequested: normalized.length,
});
break;
}
const segmentStartedAt = Date.now();
const stageTimings: Record<string, number> = {};
let failedStage = 'unknown';
@ -382,7 +392,7 @@ export async function POST(request: NextRequest) {
// Self-heal transient Whisper failures: if audio exists but alignment was
// previously unavailable, retry alignment using the current segment text.
if (!alignment) {
if (!alignment && !request.signal.aborted) {
try {
const alignStartedAt = Date.now();
const computeBackend = await getComputeBackend();
@ -406,9 +416,12 @@ export async function POST(request: NextRequest) {
));
}
} catch (alignError) {
console.warn('Whisper alignment still unavailable for completed segment; continuing without word highlights.', {
const aborted = isAbortLikeError(alignError) || request.signal.aborted;
const log = aborted ? console.info : console.warn;
log('Whisper alignment still unavailable for completed segment; continuing without word highlights.', {
requestId,
segmentId: segment.segmentId,
aborted,
error: alignError instanceof Error ? alignError.message : String(alignError),
});
alignment = null;
@ -632,23 +645,28 @@ export async function POST(request: NextRequest) {
const durationMs = await probeAudioDurationMsFromBuffer(persistedBuffer, request.signal);
stageTimings.probeDurationMs = Date.now() - probeStartedAt;
let alignment: TTSSegmentManifestItem['alignment'] = null;
try {
failedStage = 'whisper.align';
const alignStartedAt = Date.now();
const computeBackend = await getComputeBackend();
const aligned = (await computeBackend.alignWords({
audioObjectKey: audioKey,
text: segment.text,
})).alignments;
stageTimings.whisperAlignMs = Date.now() - alignStartedAt;
alignment = aligned[0] ? { ...aligned[0], sentenceIndex: segment.original.segmentIndex } : null;
} catch (alignError) {
console.warn('Whisper alignment unavailable for segment; continuing without word highlights.', {
requestId,
segmentId: segment.segmentId,
error: alignError instanceof Error ? alignError.message : String(alignError),
});
alignment = null;
if (!request.signal.aborted) {
try {
failedStage = 'whisper.align';
const alignStartedAt = Date.now();
const computeBackend = await getComputeBackend();
const aligned = (await computeBackend.alignWords({
audioObjectKey: audioKey,
text: segment.text,
})).alignments;
stageTimings.whisperAlignMs = Date.now() - alignStartedAt;
alignment = aligned[0] ? { ...aligned[0], sentenceIndex: segment.original.segmentIndex } : null;
} catch (alignError) {
const aborted = isAbortLikeError(alignError) || request.signal.aborted;
const log = aborted ? console.info : console.warn;
log('Whisper alignment unavailable for segment; continuing without word highlights.', {
requestId,
segmentId: segment.segmentId,
aborted,
error: alignError instanceof Error ? alignError.message : String(alignError),
});
alignment = null;
}
}
failedStage = 'db.mark_completed';
@ -699,7 +717,8 @@ export async function POST(request: NextRequest) {
: upstreamStatus && upstreamStatus >= 500
? 'UPSTREAM_TTS_ERROR'
: 'TTS_SEGMENT_GENERATION_FAILED';
console.error('[tts-segments/ensure] segment failed', {
const segmentFailureLog = aborted ? console.info : console.error;
segmentFailureLog('[tts-segments/ensure] segment failed', {
requestId,
documentId: parsed.documentId,
segmentId: segment.segmentId,
@ -747,6 +766,17 @@ export async function POST(request: NextRequest) {
...(typeof retryAfterSeconds === 'number' ? { retryAfterSeconds } : {}),
},
});
if (aborted || request.signal.aborted) {
console.info('[tts-segments/ensure] stopping remaining segments after abort', {
requestId,
documentId: parsed.documentId,
segmentId: segment.segmentId,
completedSoFar: manifest.length,
totalRequested: normalized.length,
});
break;
}
}
}