fix(insta-render): 큐 연결 socket_timeout=30 (None→30 교정)

근본원인 실험 확정: redis-py 블로킹 read에서 socket_timeout이 BLMOVE 블록(5s) 이하/None이면 read_timeout 경계 경합으로 간헐 "Timeout reading" → dequeue 실패 → 슬레이트 draft 정지. socket_timeout 10/30은 모든 실험에서 안정. 블록보다 큰 30으로 명시(직전 None 커밋은 단독 테스트만 통과시켜 오도 — 재사용 패턴서 깨짐). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
fix(insta-render): BLMOVE dequeue가 짧은 socket_timeout으로 깨지던 문제 해결
2026-06-08 03:17:34 +09:00 · 2026-06-06 16:08:43 +09:00 · 2026-06-06 12:53:07 +09:00 · 2026-06-06 12:50:25 +09:00 · 2026-06-06 12:46:19 +09:00
4 changed files with 113 additions and 29 deletions
--- a/services/insta-render/card_renderer.py
+++ b/services/insta-render/card_renderer.py
@@ -151,8 +151,11 @@ async def _render_slate_locked(slate: dict, slate_id: int, template: str) -> Lis
                html_path = f.name
            try:
                await page.goto(f"file://{html_path}", wait_until="networkidle")
+                await page.evaluate("document.fonts.ready")   # 웹폰트 로딩 완료까지 대기
                out_path = os.path.join(out_dir, f"{spec['page_no']:02d}.png")
                await page.screenshot(path=out_path, full_page=False, omit_background=False)
+                if os.path.getsize(out_path) < 1000:          # 빈/깨진 PNG 방어
+                    raise RuntimeError(f"rendered PNG too small: {out_path}")
                paths.append(out_path)
            finally:
                try:
--- a/services/insta-render/templates/default/card.html.j2
+++ b/services/insta-render/templates/default/card.html.j2
@@ -3,52 +3,85 @@
 <head>
 <meta charset="UTF-8">
 <style>
-  @import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;700;900&display=swap');
+  @import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');
  * { margin: 0; padding: 0; box-sizing: border-box; }
-  html, body {
-    width: 1080px; height: 1350px;
-    font-family: 'Noto Sans KR', sans-serif;
+  html, body { width: 1080px; height: 1350px; }
+  body {
+    font-family: 'Pretendard', 'Noto Sans KR', sans-serif;
    background: #F7F7FA; color: #14171A;
+    -webkit-font-smoothing: antialiased;
  }
  .card {
-    width: 1080px; height: 1350px;
-    padding: 80px 72px;
-    display: flex; flex-direction: column; justify-content: space-between;
-    background: linear-gradient(180deg, #FFFFFF 0%, #F7F7FA 100%);
-    border-top: 16px solid {{ accent_color }};
+    position: relative; width: 1080px; height: 1350px; overflow: hidden;
+    padding: 96px 84px 72px;
+    display: flex; flex-direction: column;
+    background: #FFFFFF;
  }
+  .accent-bar { position: absolute; top: 0; left: 0; width: 100%; height: 14px; background: {{ accent_color | safe }}; }
  .badge {
-    display: inline-block; padding: 8px 20px; border-radius: 999px;
-    background: {{ accent_color }}; color: #fff;
-    font-size: 28px; font-weight: 700; letter-spacing: -0.02em;
+    align-self: flex-start; padding: 10px 24px; border-radius: 999px;
+    background: {{ accent_color | safe }}; color: #fff;
+    font-size: 30px; font-weight: 700; letter-spacing: -0.02em;
  }
+  .idx { font-size: 120px; font-weight: 800; line-height: 1; color: {{ accent_color | safe }}; letter-spacing: -0.04em; }
+  .content { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 36px; }
  .headline {
-    font-size: {{ 96 if page_type == 'cover' else 72 }}px;
-    font-weight: 900; line-height: 1.15; letter-spacing: -0.04em;
-    margin-top: 32px;
+    font-weight: 800; line-height: 1.18; letter-spacing: -0.04em; color: #14171A;
+    display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden;
  }
-  .body {
-    font-size: 40px; font-weight: 400; line-height: 1.55;
-    margin-top: 40px; color: #2A2F35;
+  .cover .headline { font-size: 104px; -webkit-line-clamp: 4; }
+  .body-page .headline { font-size: 76px; -webkit-line-clamp: 3; }
+  .cta .headline { font-size: 88px; -webkit-line-clamp: 3; }
+  .sub {
+    font-size: 42px; font-weight: 400; line-height: 1.5; color: #3A4047;
+    display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; -webkit-line-clamp: 8;
    white-space: pre-wrap;
  }
+  .cover .sub { -webkit-line-clamp: 5; }
  .footer {
    display: flex; justify-content: space-between; align-items: center;
-    font-size: 28px; color: #6B7280; font-weight: 500;
+    font-size: 28px; color: #8A9099; font-weight: 600; margin-top: 40px;
  }
-  .cta { font-weight: 700; color: {{ accent_color }}; }
+  .cta-pill {
+    align-self: flex-start; margin-top: 8px; padding: 18px 40px; border-radius: 16px;
+    background: {{ accent_color | safe }}; color: #fff; font-size: 40px; font-weight: 700;
+  }
+  .progress { display: flex; gap: 10px; }
+  .progress i { width: 14px; height: 14px; border-radius: 50%; background: #D8DCE0; display: inline-block; }
+  .progress i.on { background: {{ accent_color | safe }}; }
 </style>
 </head>
 <body>
-<div class="card">
-  <div>
-    <span class="badge">{{ page_type|upper }}</span>
+<div class="card {{ 'cover' if page_type=='cover' else ('cta' if page_type=='cta' else 'body-page') }}">
+  <div class="accent-bar"></div>
+
+  {% if page_type == 'cover' %}
+    <span class="badge">{{ category_label|default('') or '오늘의 이슈' }}</span>
+    <div class="content">
      <h1 class="headline">{{ headline }}</h1>
-    <p class="body">{{ body }}</p>
+      <p class="sub">{{ body }}</p>
    </div>
+  {% elif page_type == 'cta' %}
+    <div class="content">
+      <h1 class="headline">{{ headline }}</h1>
+      <p class="sub">{{ body }}</p>
+      {% if cta %}<div class="cta-pill">{{ cta }}</div>{% endif %}
+    </div>
+  {% else %}
+    <span class="idx">{{ '%02d'|format(page_no - 1) }}</span>
+    <div class="content">
+      <h1 class="headline">{{ headline }}</h1>
+      <p class="sub">{{ body }}</p>
+    </div>
+  {% endif %}
+
  <div class="footer">
+    {% if page_type == 'cover' or page_type == 'cta' %}
+      <span>{{ brand_handle|default('') }}</span><span>{{ page_no }} / {{ total_pages }}</span>
+    {% else %}
+      <div class="progress">{% for n in range(2, total_pages) %}<i class="{{ 'on' if n <= page_no }}"></i>{% endfor %}</div>
      <span>{{ page_no }} / {{ total_pages }}</span>
-    {% if cta %}<span class="cta">{{ cta }}</span>{% endif %}
+    {% endif %}
  </div>
 </div>
 </body>
--- a/services/insta-render/tests/test_worker.py
+++ b/services/insta-render/tests/test_worker.py
@@ -1,10 +1,13 @@
 """worker.py — Redis BLPOP + webhook 단위 테스트."""
 import json
+import os
+from pathlib import Path
 import pytest
 import httpx
 from unittest.mock import AsyncMock, patch

 import worker
+from card_renderer import render_slate, init_browser, shutdown_browser


@pytest.fixture
@@ -179,6 +182,28 @@ async def test_poll_once_calls_fail_on_exception(monkeypatch):
    fake_queue.ack.assert_not_awaited()


+@pytest.mark.asyncio
+async def test_render_produces_nonempty_1080x1350(tmp_path, monkeypatch):
+    """Phase 2 — fonts.ready 대기 + PNG 비어있음 검증: 10장 모두 > 1000 bytes."""
+    import card_renderer as _cr
+    templates_dir = str(Path(__file__).resolve().parent.parent / "templates")
+    monkeypatch.setattr(_cr, "CARD_TEMPLATE_DIR", templates_dir)
+    monkeypatch.setattr(_cr, "INSTA_MEDIA_ROOT", str(tmp_path))
+    await init_browser()
+    try:
+        slate = {
+            "cover_copy": {"headline": "헤드라인", "body": "서브", "accent_color": "#0F62FE"},
+            "body_copies": [{"headline": f"포인트{i}", "body": "본문"} for i in range(8)],
+            "cta_copy": {"headline": "요약", "body": "마무리", "cta": "팔로우"},
+        }
+        paths = await render_slate(slate, slate_id=99999)
+        assert len(paths) == 10
+        for p in paths:
+            assert os.path.getsize(p) > 1000          # 비어있지 않음
+    finally:
+        await shutdown_browser()
+
+
@pytest.mark.asyncio
 async def test_poll_once_returns_false_on_timeout(monkeypatch):
    """F6 — dequeue가 None 반환(타임아웃)이면 False 리턴, ack/fail 안 부름."""
@@ -197,3 +222,11 @@ async def test_poll_once_returns_false_on_timeout(monkeypatch):
    process_mock.assert_not_awaited()
    fake_queue.ack.assert_not_awaited()
    fake_queue.fail.assert_not_awaited()
+
+
+def test_make_queue_redis_socket_timeout_exceeds_block():
+    """BLMOVE(블록 5s) dequeue가 read-timeout 경계 경합으로 깨지지 않도록
+    socket_timeout이 블록보다 충분히 커야 한다 (회귀 가드)."""
+    c = worker.make_queue_redis()
+    st = c.connection_pool.connection_kwargs.get("socket_timeout")
+    assert st is not None and st > 5   # blmove 블록(5s)보다 커야 안정
--- a/services/insta-render/worker.py
+++ b/services/insta-render/worker.py
@@ -98,9 +98,24 @@ async def poll_once(queue: ReliableQueue, client: httpx.AsyncClient) -> bool:
    return True


+# 블로킹 dequeue는 BLMOVE(블록 5s)를 쓴다. redis-py 블로킹 read에서 socket_timeout이
+# 블록(5s) 이하이거나 None이면 read-timeout이 블록 경계와 경합해 간헐적으로
+# "Timeout reading"이 터져 잡을 못 꺼낸다(슬레이트 draft 정지). 실험상 socket_timeout이
+# 블록보다 충분히 크면(10/30) 항상 안정. → 블록보다 넉넉히 큰 값을 명시한다.
+QUEUE_SOCKET_TIMEOUT = 30  # > dequeue blmove 블록(5s)
+
+
+def make_queue_redis():
+    """블로킹 dequeue(BLMOVE)용 redis 클라이언트. socket_timeout > 블록(5s) 보장."""
+    return aioredis.from_url(
+        REDIS_URL, decode_responses=False,
+        socket_timeout=QUEUE_SOCKET_TIMEOUT, socket_keepalive=True,
+    )
+
+
 async def worker_loop():
    """무한 루프 — paused 체크 → ReliableQueue.dequeue → process_one → ack/fail."""
-    redis = aioredis.from_url(REDIS_URL, decode_responses=False)
+    redis = make_queue_redis()
    queue = ReliableQueue(redis, queue_key=QUEUE_KEY)
    async with httpx.AsyncClient() as client:
        logger.info("insta-render worker started worker_id=%s queue=%s",
Author	SHA1	Message	Date
gahusb	6774067505	fix(insta-render): 큐 연결 socket_timeout=30 (None→30 교정) 근본원인 실험 확정: redis-py 블로킹 read에서 socket_timeout이 BLMOVE 블록(5s) 이하/None이면 read_timeout 경계 경합으로 간헐 "Timeout reading" → dequeue 실패 → 슬레이트 draft 정지. socket_timeout 10/30은 모든 실험에서 안정. 블록보다 큰 30으로 명시(직전 None 커밋은 단독 테스트만 통과시켜 오도 — 재사용 패턴서 깨짐). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-08 03:17:34 +09:00
gahusb	c451f5313b	fix(insta-render): BLMOVE dequeue가 짧은 socket_timeout으로 깨지던 문제 해결 REDIS_URL의 socket_timeout(<5s)이 ReliableQueue BLMOVE 5초 블록보다 짧아 idle dequeue마다 "Timeout reading"으로 잡을 못 꺼내 슬레이트가 draft에 정지(~2026-05-22~). 큐 연결을 socket_timeout=None + socket_keepalive로 생성(make_queue_redis)해 정상화. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-06 16:08:43 +09:00
gahusb	9241b5cd90	fix(insta-render): fonts.ready 대기 + PNG 비어있음 검증 (렌더 known-issue 해결) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-06 12:53:07 +09:00
gahusb	8bfc8e153f	polish(insta-render): CSS accent \| safe + cover sub clamp Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-06 12:50:25 +09:00
gahusb	232aa52adb	feat(insta-render): 모던 미니멀 디자인 시스템 템플릿 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-06-06 12:46:19 +09:00