frequently print warn log cause cpu using increase

[killGC]

Please answer these questions before submitting your issue.

2020-08-29 07:32:06,113 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-1] WARN [] - Pick up system reserved threshold 500ms because of config missing

• Why do you submit this issue?
• Question or discussion
• Bug
• Requirement
• Feature or performance improvement

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Question

• What do you want to know?

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Bug

• Which version of SkyWalking, OS and JRE?
  skywalking 7.0，os linux，jre jdk8

• Which company or project?

• What happened?
  If possible, provide a way to reproduce the error. e.g. demo application, component version.

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Requirement or improvement

• Please describe your requirements or improvement suggestions.

[killGC]

2020-08-29 07:32:02,777 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-7] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,458 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-9] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,487 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-14] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,531 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-9] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,593 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-11] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,638 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-6] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,640 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-7] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,742 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-12] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,866 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-5] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:03,867 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-14] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:04,040 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-3] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:04,106 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-10] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:04,106 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-7] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:04,356 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-15] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:04,356 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-2] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,138 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-15] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,139 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-3] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,217 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-13] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,218 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-5] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,247 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-10] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,248 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-1] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,409 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-4] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,412 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-14] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:05,645 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-1] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:06,113 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-1] WARN [] - Pick up system reserved threshold 500ms because of config missing
2020-08-29 07:32:06,138 - org.apache.skywalking.oap.server.core.analysis.ApdexThresholdConfig - 64 [grpcServerPool-1-thread-6] WARN [] - Pick up system reserved threshold 500ms because of config missing

[wu-sheng]

Put this file https://github.com/apache/skywalking/blob/master/oap-server/server-core/src/test/resources/service-apdex-threshold.yml in the config folder.

This has been fixed in the 8.x release.

[MWW0]

Put this file https://github.com/apache/skywalking/blob/master/oap-server/server-core/src/test/resources/service-apdex-threshold.yml in the config folder.

This has been fixed in the 8.x release.

我在apache-skywalking-apm-bin-8.x版本仍然遇到同样的问题，我的service-apdex-threshold.yml中包含了链接拥有的配置。我应该如何解决？
I still had the same problem with the Apache-Skywalk-apm-bin-8.x version, and my service-apdex-threshold-yml included the link-owned configuration. How can I solve it?