tidb 日志invalid cop task execution summaries length ，有影响吗？是否需要处理

🪐 TiDB 技术问题
1

【TiDB 版本】v5.0.3

tidb 日志 一直刷如下内容， 是否有影响，需要处理吗

[2021/07/07 14:00:35.425 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378619] [expected=4] [received=0]
[2021/07/07 14:00:35.426 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378619] [expected=4] [received=0]
[2021/07/07 14:00:35.436 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378619] [expected=4] [received=0]
[2021/07/07 14:00:35.961 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:00:35.969 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:03:11.395 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:03:11.418 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:03:11.436 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:07:16.744 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374759] [expected=3] [received=0]
[2021/07/07 14:07:16.755 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374759] [expected=4] [received=0]
[2021/07/07 14:09:05.003 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:09:05.034 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:09:06.560 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:09:07.589 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:13:58.414 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374299] [expected=3] [received=0]
[2021/07/07 14:13:58.419 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374299] [expected=3] [received=0]
[2021/07/07 14:13:58.422 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374299] [expected=3] [received=0]
[2021/07/07 14:13:58.768 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374299] [expected=4] [received=0]
[2021/07/07 14:13:58.782 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374299] [expected=4] [received=0]
[2021/07/07 14:13:59.343 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374299] [expected=4] [received=0]
[2021/07/07 14:13:59.345 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=374299] [expected=4] [received=0]
[2021/07/07 14:13:59.622 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:13:59.642 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:13:59.681 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:13:59.692 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:18:22.210 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:18:22.287 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:18:23.804 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:18:25.062 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:22:52.953 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:22:52.957 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:22:52.997 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:22:55.238 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:27:15.738 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:27:15.741 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:27:15.838 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:27:16.731 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=378621] [expected=4] [received=0]
[2021/07/07 14:40:03.941 +08:00] [ERROR] [select_result.go:343] [“invalid cop task execution summaries length”] [conn=381369] [expected=4] [received=0]

2

1、问一下，咱们是咱们发现这个问题，咱们业务有什么异常表现吗（比如 SQL 报错之类）？

3

方便给一下监控不（tidb- server 和 tikv-detail 的），导出方法参考：[FAQ] Grafana Metrics 页面的导出和导入

4

json 导出 最新1小时。这1小时也有报错

image
image1215×571 14.5 KB

MBG-Cluster-TiKV-Details_2021-07-09T01_26_49.942Z.zip (1.0 MB)
MBG-Cluster-TiDB-Summary_2021-07-09T01_29_08.530Z.json (1.3 MB)

5

业务端没有发现，这是 统计tidb 错误日志发现的， 4.0.13 的时候没有， 这是升级到5.0.3 才出现的。 我改debug 日志级别能发现相关信息吗

6

能帮确认一下：tikv-client.grpc-compression-type 这个配置嘛

image
image2246×366 30 KB

7

image

8

好的，咱们这个集群有tiflash 节点不
先补充一下：咱们这个报错不会影响线上使用的
另外，咱们如果是生产环境，截图的时候，可以把 IP 过滤掉即可

9

1、有tiflash节点
2、不影响使用就行，因为这个报错级别会让我困惑。
3、还需要排查吗，这边可以配合。不需要的话，就关了这个吧

10

不用了，知道问题原因了，这个后续会优化一下

11

5.2.1版本也有哇 咋办

12

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