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perf(stability): batch committer 异步化及降级冷却参数调优

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- 将 batch_committer 的 DB commit 操作通过 asyncio.to_thread 移至线程池，避免阻塞事件循环
- 将 f-string 日志替换为 loguru 惰性格式化
- 降低事件循环延迟降级的冷却时间和乘数，加快降级恢复
This commit is contained in:
fawney19
2026-03-12 14:22:55 +08:00
parent 0112ab752b
commit ad31cdbf85
2 changed files with 23 additions and 14 deletions
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31
src/core/batch_committer.py
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@@ -32,7 +32,7 @@ class BatchCommitter:
"""启动后台批量提交任务"""
if self._task is None:
self._task = asyncio.create_task(self._batch_commit_loop())
logger.info(f"批量提交器已启动，间隔: {self.interval_seconds}s")
logger.info("批量提交器已启动，间隔: {}s", self.interval_seconds)
async def stop(self) -> Any:
"""停止后台任务"""
@@ -65,7 +65,7 @@ class BatchCommitter:
await self._commit_all()
raise
except Exception as e:
logger.error(f"批量提交出错: {e}")
logger.error("批量提交出错: {}", e)
async def _commit_all(self) -> None:
"""提交所有待处理的 Session"""
@@ -76,25 +76,34 @@ class BatchCommitter:
sessions_to_commit = list(self._pending_sessions)
self._pending_sessions.clear()
committed = 0
failed = 0
committed = 0
failed = 0
def _sync_commit_all() -> tuple[int, int]:
ok = 0
err = 0
for session in sessions_to_commit:
try:
session.commit()
committed += 1
ok += 1
except Exception as e:
logger.error(f"提交 Session 失败: {e}")
logger.error("提交 Session 失败: {}", e)
try:
session.rollback()
except:
pass
failed += 1
err += 1
return ok, err
if committed > 0:
logger.debug(f"批量提交完成: {committed} 个 Session")
if failed > 0:
logger.warning(f"批量提交失败: {failed} 个 Session")
try:
committed, failed = await asyncio.to_thread(_sync_commit_all)
except Exception as e:
logger.error("批量提交线程异常: {}", e)
if committed > 0:
logger.debug("批量提交完成: {} 个 Session", committed)
if failed > 0:
logger.warning("批量提交失败: {} 个 Session", failed)
# 全局单例