281613520 opened a new issue #2661:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2661


   日志如下:
   2021-12-10 15:13:37.576 [thread-1] ERROR - [xx.java:reload:86] - [] - Reload 
xx data failed, with message[null]:
   java.lang.NullPointerException: null
           at 
org.apache.servicecomb.core.filter.OperationInstancesDiscoveryFilter.groupByVersion(OperationInstancesDiscoveryFilter.java:115)
 ~[java-chassis-core-1.3.6.jar!/:1.3.6]
           at 
org.apache.servicecomb.core.filter.OperationInstancesDiscoveryFilter.init(OperationInstancesDiscoveryFilter.java:72)
 ~[java-chassis-core-1.3.6.jar!/:1.3.6]
           at 
org.apache.servicecomb.serviceregistry.discovery.AbstractDiscoveryFilter.discovery(AbstractDiscoveryFilter.java:33)
 ~[service-registry-1.3.6.jar!/:?]
           at 
org.apache.servicecomb.serviceregistry.discovery.DiscoveryTree.doDiscovery(DiscoveryTree.java:166)
 ~[service-registry-1.3.6.jar!/:?]
           at 
org.apache.servicecomb.serviceregistry.discovery.DiscoveryTree.discovery(DiscoveryTree.java:130)
 ~[service-registry-1.3.6.jar!/:?]
           at 
org.apache.servicecomb.serviceregistry.discovery.DiscoveryTree.discovery(DiscoveryTree.java:123)
 ~[service-registry-1.3.6.jar!/:?]
           at 
com.xx.cloudsecurity.mis.aggregation.notify.ProxyBroadcastService.getServiceCombServers(ProxyBroadcastService.java:68)
 ~[mis-aggregation-impl-1.5.0-SNAPSHOT.jar!/:?]
           at 
com.xx.cloudsecurity.mis.aggregation.notify.ProxyBroadcastService.broadcast(ProxyBroadcastService.java:51)
 ~[mis-aggregation-impl-1.5.0-SNAPSHOT.jar!/:?]
           at 
com.xx.cloudsecurity.mis.aggregation.scheduler.local.MisIndexBlockLocations.lambda$scheduleIncrReloadData$9(MisIndexBlockLocations.java:125)
 ~[mis-aggregation-impl-1.5.0-SNAPSHOT.jar!/:?]
           at java.util.HashMap.forEach(HashMap.java:1289) ~[?:1.8.0_282]
           at 
com.xx.cloudsecurity.mis.aggregation.scheduler.local.MisIndexBlockLocations.scheduleIncrReloadData(MisIndexBlockLocations.java:122)
 ~[mis-aggregation-impl-1.5.0-SNAPSHOT.jar!/:?]
           at 
com.xx.cloudsecurity.rms.schedule.AbstractDataSet.scheduleReloadData(AbstractDataSet.java:217)
 ~[cfs-common-1.2.0-SNAPSHOT.jar!/:?]
           at 
com.xx.cloudsecurity.mis.aggregation.scheduler.MisIndexBlockReLoader.handleReload(MisIndexBlockReLoader.java:38)
 ~[mis-aggregation-impl-1.5.0-SNAPSHOT.jar!/:?]
           at 
com.xx.cloudsecurity.rms.schedule.AbstractDataReloader.reload(AbstractDataReloader.java:84)
 ~[cfs-common-1.2.0-SNAPSHOT.jar!/:?]
           at 
com.xx.cloudsecurity.rms.schedule.GenerticDataLoaderScheduler.execute(GenerticDataLoaderScheduler.java:56)
 ~[cfs-common-1.2.0-SNAPSHOT.jar!/:?]
           at 
com.xx.cloudsecurity.rms.schedule.RetryableRunner.run(RetryableRunner.java:54) 
~[cfs-common-1.2.0-SNAPSHOT.jar!/:?]
           at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
~[?:1.8.0_282]
           at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) 
~[?:1.8.0_282]
           at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
 ~[?:1.8.0_282]
           at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
 ~[?:1.8.0_282]
           at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
~[?:1.8.0_282]
           at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
~[?:1.8.0_282]
           at java.lang.Thread.run(Thread.java:748) [?:1.8.0_282]
   
   关键代码如下:
    private List<ServiceCombServer> getServiceCombServers(String nodeGroup) {
           DiscoveryContext context = new DiscoveryContext();
           VersionedCache serversVersionedCache =
               discoveryTree.discovery(context, "appid", "microserviceName", 
"0+");
           List<ServiceCombServer> list = serversVersionedCache.data();
           return list.stream().filter(server -> is(nodeGroup, 
server)).collect(Collectors.toList());
       }
   discoveryTree使用如下方法初始化
   public void afterPropertiesSet() throws Exception {
           // 可以选择去掉一部分
           discoveryTree.loadFromSPI(DiscoveryFilter.class);
           discoveryTree.sort();
       }


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