chenpengfei opened a new issue #2168: Collecter server's load average is very big URL: https://github.com/apache/incubator-skywalking/issues/2168 Please answer these questions before submitting your issue. - Why do you submit this issue? - [ ] Question or discussion - [ ] Bug - [ * ] Requirement - [ ] Feature or performance improvement ___ ### Question - What do you want to know? ___ ### Bug - Which version of SkyWalking, OS and JRE? - Which company or project? - What happen? If possible, provide a way for reproducing the error. e.g. demo application, component version. ___ ### Requirement or improvement - Please describe about your requirements or improvement suggestions. Collector server's memory is enough, but cpu usage rate and load average are very high. `jstack` print info ` "grpc-default-executor-5112" #13959 daemon prio=5 os_prio=0 tid=0x00007fb7b4fae800 nid=0x714 sleeping[0x00007fb774b21000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at org.apache.skywalking.apm.commons.datacarrier.buffer.Buffer.save(Buffer.java:64) at org.apache.skywalking.apm.commons.datacarrier.buffer.Channels.save(Channels.java:52) at org.apache.skywalking.apm.commons.datacarrier.DataCarrier.produce(DataCarrier.java:82) at org.apache.skywalking.apm.collector.analysis.worker.model.base.LocalAsyncWorkerRef.in(LocalAsyncWorkerRef.java:74) at org.apache.skywalking.apm.collector.analysis.worker.model.base.LocalAsyncWorkerRef.in(LocalAsyncWorkerRef.java:33) at org.apache.skywalking.apm.collector.core.graph.Next.lambda$execute$0(Next.java:49) at org.apache.skywalking.apm.collector.core.graph.Next$$Lambda$805/635779307.accept(Unknown Source) at java.lang.Iterable.forEach(Iterable.java:75) at org.apache.skywalking.apm.collector.core.graph.Next.execute(Next.java:49) at org.apache.skywalking.apm.collector.analysis.metric.provider.worker.service.refmetric.ServiceReferenceHourMetricTransformNode.process(ServiceReferenceHourMetricTransformNode.java:44) at org.apache.skywalking.apm.collector.analysis.metric.provider.worker.service.refmetric.ServiceReferenceHourMetricTransformNode.process(ServiceReferenceHourMetricTransformNode.java:31) at org.apache.skywalking.apm.collector.core.graph.Node.execute(Node.java:52) at org.apache.skywalking.apm.collector.core.graph.WayToNode.out(WayToNode.java:40) at org.apache.skywalking.apm.collector.core.graph.DirectWay.in(DirectWay.java:31) at org.apache.skywalking.apm.collector.core.graph.Next.lambda$execute$0(Next.java:49) at org.apache.skywalking.apm.collector.core.graph.Next$$Lambda$805/635779307.accept(Unknown Source) at java.lang.Iterable.forEach(Iterable.java:75) at org.apache.skywalking.apm.collector.core.graph.Next.execute(Next.java:49) at org.apache.skywalking.apm.collector.remote.grpc.handler.RemoteCommonServiceHandler$1.onNext(RemoteCommonServiceHandler.java:63) at org.apache.skywalking.apm.collector.remote.grpc.handler.RemoteCommonServiceHandler$1.onNext(RemoteCommonServiceHandler.java:52) at io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onMessage(ServerCalls.java:248) at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailable(ServerCallImpl.java:263) at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable.runInContext(ServerImpl.java:683) at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) ` I hope, we can config the sleep time, total thread count, buffer size by config file according my machine.
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