skywalking问题集

1. 启动报空指针

java.lang.NullPointerException: null
at org.apache.skywalking.oap.server.core.management.ui.template.UITemplateInitializer.verifyNameConflict(UITemplateInitializer.java:106) ~[server-core-9.0.0.jar:9.0.0]
at org.apache.skywalking.oap.server.core.management.ui.template.UITemplateInitializer.initTemplate(UITemplateInitializer.java:91) ~[server-core-9.0.0.jar:9.0.0]
at org.apache.skywalking.oap.server.core.management.ui.template.UITemplateInitializer.initAll(UITemplateInitializer.java:74) ~[server-core-9.0.0.jar:9.0.0]
at org.apache.skywalking.oap.server.core.CoreModuleProvider.notifyAfterCompleted(CoreModuleProvider.java:384) ~[server-core-9.0.0.jar:9.0.0]
at org.apache.skywalking.oap.server.library.module.BootstrapFlow.notifyAfterCompleted(BootstrapFlow.java:52) ~[library-module-9.0.0.jar:9.0.0]
at org.apache.skywalking.oap.server.library.module.ModuleManager.init(ModuleManager.java:61) ~[library-module-9.0.0.jar:9.0.0]
at org.apache.skywalking.oap.server.starter.OAPServerBootstrap.start(OAPServerBootstrap.java:44) [server-starter-9.0.0.jar:9.0.0]
at org.apache.skywalking.oap.server.starter.OAPServerStartUp.main(OAPServerStartUp.java:23) [server-starter-9.0.0.jar:9.0.0]

这个是因为es数据库有之前skywalking遗留的index索引，引起的。清理es数据库之前索引即可：
DELETE _all

2. apm-trace-ignore-plugin-8.11.0.jar 插件端点忽略不起作用问题

配置文件中端点要使用如下图所示圈中的。添加了GET、或POST请求方式的前缀

trace.ignore_path=GET:/actuator/*,GET:/Lettuce/*,