Thanks for your quick answer, Wu Sheng! Thanks & Best Regards
Xiaochao Zhang(James) DI SW CAS MP EMK DO-CHN No.7, Xixin Avenue, Chengdu High-Tech Zone Chengdu, China 611731 Cellphone: +86 13980787820 Email: [email protected] -----Original Message----- From: Sheng Wu <[email protected]> Sent: Friday, February 7, 2020 11:24 PM To: dev <[email protected]> Subject: Re: OAP GRPC thread pool size setting via environment SW_RECEIVER_SHARING_GRPC_THREAD_POOL_SIZE First, first of all, I am not sure to set a larger pool size could get more performance, usually, starting more threads could increase the CPU load, and decrease the performance. Then back your overriding, in the default configuration, the sharing-server is not active, you need to set core/default/gRPCThreadPoolSize. The `receiver-sharing-server` is not activated when you set a separated ip:port. Sheng Wu 吴晟 Twitter, wusheng1108 Zhang, James <[email protected]> 于2020年2月7日周五 下午10:39写道： > Dear Skywalking Dev, > I had deployed Skywalking into K8S and allocated 3 cores Pod to OAP > (6.5.0) service. > In my microservice environment, after more Java agents connected OAP > service for trace data reporting, OAP server reported below log: > - org.apache.skywalking.oap.server.library.server.grpc.GRPCServer > -478508906 [grpc-default-worker-ELG-3-2] WARN [] - Grpc server thread > pool is full, rejecting the task > > I checked the source code and found that the default GRPCServer thread > pool size is private int threadPoolSize = > Runtime.getRuntime().availableProcessors() * 4; > > therefore my OAP GRPCServer thread pool size is set to 3*4=12 threads. > > However, I also found that this default threadPoolSize can be override > by CoreMouleConfig. gRPCThreadPoolSize and I tried to set the system > environment SW_RECEIVER_SHARING_GRPC_THREAD_POOL_SIZE to override the > default value in application.yml > receiver-sharing-server: > default: > gRPCThreadPoolSize: ${SW_RECEIVER_SHARING_GRPC_THREAD_POOL_SIZE:0} > > I tried to set the SW_RECEIVER_SHARING_GRPC_THREAD_POOL_SIZE to 32 for > increasing the GRPC thread pool size. However after I set this > environment, it seems that the GRPC thread pool keeps the same default 3*4 > size. > > Can you tell me whether this setting is effective to override the > default > processors*4 setting for increasing the GRPC server thread pool size > for better performance? > > Thanks & Best Regards > > Xiaochao Zhang(James) > DI SW CAS MP EMK DO-CHN > No.7, Xixin Avenue, Chengdu High-Tech Zone Chengdu, China 611731 > Email: [email protected] <mailto:[email protected]> > >
