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Posted to commits@doris.apache.org by GitBox <gi...@apache.org> on 2020/07/13 08:55:25 UTC
[GitHub] [incubator-doris] WingsGo opened a new issue #4085: [Proposal]Introduce kudu's ThreadPoolMgr && register metric to manage BE's thread
WingsGo opened a new issue #4085:
URL: https://github.com/apache/incubator-doris/issues/4085
Currently, FE's Thread is managed by `ThreadPoolManager`, but BE's thread manage is messy, some are `PriorityThreadPool` some a native pthread, It is inconvient to trace some problem such as thread num increase up to thounds and CPU load is very high.
Now, we introduce kudu's ThreadPool in #2915, and prepare to replace some native pthread to ThreadPool #3416 , and I think we should also introduce kudu's ThreadPoolMgr to manage ThreadPool, and collect metric such as `user cpu time used`, `system cpu time used`, `context switches`, escepcially for plan fragment executor's thread to help us positioning if the thread is doing a long task which was unexpected or they are just waiting by potential deadlock problems.
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[GitHub] [incubator-doris] WingsGo commented on issue #4085: [Proposal]Use kudu's ThreadPoolMgr && add metrics for BE's thread in BE's WebSite
Posted by GitBox <gi...@apache.org>.
WingsGo commented on issue #4085:
URL: https://github.com/apache/incubator-doris/issues/4085#issuecomment-658240854
Hi, @chaoyli , I will add these metrics to help users to positioning some slow query's problem in plan fragment threads' problem, do you have any suggestions for the solution, is it OK?
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