为了更快的定位您的问题，请提供以下信息，谢谢
【详述】CN节点ioutil长期 99%
【背景】3 台cn，会有节点偶发出现ioutil 99%，临时处理措施：清空缓存数据重新启动可恢复
【业务影响】暂无发现
【是否存算分离】是
【StarRocks版本】例如：3.3.9
【集群规模】例如：3fe（1 follower+2observer）+ 3cn
【机器信息】CPU虚拟核/内存/网卡，例如：fe: 16c/32g, cn:16c/64g
【联系方式】邮箱：18172822907，或者存算分离群联系 @2333
【附件】
- IOutil使用率 99%
- cn.WARNING
`` W20250421 09:55:01.081990 46935953327872 pipeline_driver.cpp:567] cancel pipeline driver error [driver=query_id=a280e383-1e53-11f0-ab77-005056a66ac5 fragment_id=a280e383-1e53-11f0-ab77-005056a66ac6 driver=driver_3_9, status=INPUT_EMPTY, operator-chain: [aggregate_blocking_source_3_0x2ab13c970210(O) -> project_4_0x2abb5c37ca10(X) -> olap_table_sink_-1_0x2ab13ca59090(X)]]: Cancelled: Cancelled by pipeline engine
W20250421 09:55:01.082028 46935953327872 tablet_sink_sender.cpp:250] close channel failed. channel_name=NodeChannel[46365651], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.082034 46935953327872 tablet_sink_sender.cpp:250] close channel failed. channel_name=NodeChannel[64062074], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.082039 46935953327872 tablet_sink_sender.cpp:250] close channel failed. channel_name=NodeChannel[60896264], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087257 46935965935360 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[46365651], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087282 46935955429120 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[46365651], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087329 46935965935360 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[64062074], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087342 46935965935360 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[60896264], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087344 46935955429120 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[64062074], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087355 46935955429120 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[60896264], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087256 46935978542848 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[46365651], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087271 46935982745344 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[46365651], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087284 46935961732864 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[46365651], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087461 46935961732864 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[64062074], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087481 46935961732864 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[60896264], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087439 46935982745344 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[64062074], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087413 46935978542848 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[64062074], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087499 46935982745344 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[60896264], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine
W20250421 09:55:01.087504 46935978542848 tablet_sink_sender.cpp:299] close channel failed. channel_name=NodeChannel[60896264], load_info=load_id=a280e383-1e53-11f0-ab77-005056a66ac5, txn_id: 78847543, parallel=1, compress_type=2, error_msg=Cancelled by pipeline engine`