由于探针和 Skywalking OAP 存在注册的机制，如果清理了 Skywalking 所使用的 Elasticsearch 的数据，需要重新启动探针，让探针重新向 OAP 注册。...导出旧 Elasticsearch 的数据 此步骤需要停掉使用 旧 Elasticsearch 的 Skywaling OAP，防止产生新的元数据。或者导出数据期间不要接入新的探针。...skywalking_network_address_inventory.json \ --type=data 将上面步骤导出的 json 文件导入到新的 Elasticsearch 中 如果你的新的 Elasticsearch 中正在被新的 Skywalking OAP...写数据，请先停掉 OAP 并执行如下命令删除 新 Elasticsearch 的 文档： 此步骤需要停掉使用 新 Elasticsearch 的 Skywaling OAP，防止产生新的元数据。...network_address_inventory \ --input=/tmp/skywalking_network_address_inventory.json \ --type=data 重新启动 新版 Skywalking OAP
SkyWalking的OAP（Observability Analysis Platform，观测分析平台）是一个用于链路数据的分布式计算系统。...在极端情况下，可能出现链路数据的丢失,但会最大限度保障OAP集群的可用性。咱们来看一下，它是如何设计的，为以后的系统设计和架构提供一些思路。...步骤一：接收和解析探针发送的数据，并进行当前OAP节点内的数据聚合，使用OAL或者其他聚合模式。...因为上面两个步骤极有可能不在同一个OAP节点上，所以OAP节点被分为Receiver（步骤一）和Aggregator（步骤二）两种角色。...在此计算过程中，使用哈希路由策略，根据计算的实体，如服务ID、端点ID等的哈希值来选择对应的OAP节点。
ModuleDefineHolder moduleDefineHolder; private ClusterNodesQuery clusterNodesQuery; private volatile List...server list from the cluster module and create a new connection for the new node....()) { logger.debug("Refresh remote nodes collection."); } List...private void reBuildRemoteClients(List remoteInstances) { final Map<Address,...public interface RemoteClientSelector { RemoteClient select(List clients, StreamData
1：list的排序 public static void main(String[] args) { // TODO Auto-generated method stub Object... list=new ArrayList(); list.add(o1); list.add(o2); //很明显我们先添加的对象o1，所以先打印o1， for(inti...=0;i<list.size();i++){ for(intj=0;j<4;j++){ System.out.print(list.get(i)[j]+" "); } } System.out.println...("\n排序后-------"); sortList(list); //排序后： for(inti=0;i<list.size();i++){ for(intj=0;j<4;j++){...System.out.print(list.get(i)[j]+" "); } } 写一个方法 public staticvoid sortList(Listls){ Collections.sort
skywalking的metric-exporter u=3243447931,3746770550&fm=15&gp=0.jpg metric-exporter.proto skywalking-6.6.0/oap-server.../exporter/src/main/java/org/apache/skywalking/oap/server/exporter/provider/grpc/GRPCExporterSetting.java...subscription.getMetricNamesList().forEach(subscriptionSet::add); logger.debug("Get exporter subscription list...subscriptionSet); } @Override public void init() { } @Override public void consume(List...setting.getTargetHost(), setting.getTargetPort(), sleepTime); } @Override public void onError(List
序 本文主要研究一下skywalking的cluster-nacos-plugin ClusterModuleNacosConfig skywalking-6.6.0/oap-server/server-cluster-plugin.../server-cluster-plugin/cluster-nacos-plugin/src/main/java/org/apache/skywalking/oap/server/cluster/plugin...this.namingService = namingService; this.config = config; } @Override public List... queryRemoteNodes() { List result = new ArrayList();...try { List instances = namingService.selectInstances(config.getServiceName(), true
序 本文主要研究一下skywalking的metric-exporter metric-exporter.proto skywalking-6.6.0/oap-server/exporter/src/main.../exporter/src/main/java/org/apache/skywalking/oap/server/exporter/provider/grpc/GRPCExporterSetting.java...subscription.getMetricNamesList().forEach(subscriptionSet::add); logger.debug("Get exporter subscription list...subscriptionSet); } @Override public void init() { } @Override public void consume(List...setting.getTargetHost(), setting.getTargetPort(), sleepTime); } @Override public void onError(List
cluster-nacos-plugin u=494255805,3940539320&fm=15&gp=0.jpg ClusterModuleNacosConfig skywalking-6.6.0/oap-server.../server-cluster-plugin/cluster-nacos-plugin/src/main/java/org/apache/skywalking/oap/server/cluster/plugin...this.namingService = namingService; this.config = config; } @Override public List... queryRemoteNodes() { List result = new ArrayList();...try { List instances = namingService.selectInstances(config.getServiceName(), true
/server-storage-plugin/storage-zipkin-plugin/src/main/java/org/apache/skywalking/oap/server/storage/plugin...boolQueryBuilder = QueryBuilders.boolQuery(); sourceBuilder.query(boolQueryBuilder); List...traceBrief.getTraces().add(basicTrace); } return traceBrief; } @Override public List...traceId) throws IOException { return Collections.emptyList(); } @Override public List...SearchResponse response = getClient().search(ZipkinSpanRecord.INDEX_NAME, sourceBuilder); List
本文主要研究一下skywalking的storage-zipkin-plugin ZipkinStorageModuleElasticsearchProvider skywalking-6.6.0/oap-server...boolQueryBuilder = QueryBuilders.boolQuery(); sourceBuilder.query(boolQueryBuilder); List...traceBrief.getTraces().add(basicTrace); } return traceBrief; } @Override public List...String traceId) throws IOException { return Collections.emptyList(); } @Override public List...SearchResponse response = getClient().search(ZipkinSpanRecord.INDEX_NAME, sourceBuilder); List
,"configmaps"] verbs: ["get", "watch", "list"] --- apiVersion: rbac.authorization.k8s.io/v1 kind:...rules: - apiGroups: [""] resources: ["pods", "endpoints", "services"] verbs: ["get", "watch", "list...- apiGroups: ["extensions"] resources: ["deployments", "replicasets"] verbs: ["get", "watch", "list...v1 kind: ClusterRoleBinding metadata: name: skywalking-oap-server labels: app: skywalking-oap-server...这里是对应的告警中的规则map，具体可查看 https://github.com/apache/skywalking/blob/master/docs/en/setup/backend/backend-alarm.md#list-of-all-potential-metrics-name
/server-receiver-plugin/skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server.../server-receiver-plugin/skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server...} private void sendToGCMetricProcess(int serviceId, int serviceInstanceId, long timeBucket, List...private void sendToMemoryMetricProcess(int serviceId, int serviceInstanceId, long timeBucket, List...private void sendToMemoryPoolMetricProcess(int serviceId, int serviceInstanceId, long timeBucket, List
apiGroups: [""] resources: ["pods", "endpoints", "services", "nodes"] verbs: ["get", "watch", "list...- apiGroups: ["extensions"] resources: ["deployments", "replicasets"] verbs: ["get", "watch", "list...name: oap namespace: skywalking spec: replicas: 1 selector: matchLabels: app: oap...template: metadata: labels: app: oap spec: serviceAccountName: skywalking-oap...value: http://oap-svc:12800 # 根据oap的svc一致 # vim ui-svc.yaml --- apiVersion: v1
序 本文主要研究一下skywalking的jvm-receiver-plugin JVMModuleProvider skywalking-6.6.0/oap-server/server-receiver-plugin.../skywalking-jvm-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/jvm/provider/...} private void sendToGCMetricProcess(int serviceId, int serviceInstanceId, long timeBucket, List...private void sendToMemoryMetricProcess(int serviceId, int serviceInstanceId, long timeBucket, List...private void sendToMemoryPoolMetricProcess(int serviceId, int serviceInstanceId, long timeBucket, List
Do_Auto_and_Manual_Instrumentationin_Apache_Sky_Walking_APM_1440-08 (1).jpg TopNDatabaseStatement skywalking-6.6.0/oap-server.../server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/manual/database/TopNDatabaseStatement.java.../server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/topn/TopN.java public abstract.../server-core/src/main/java/org/apache/skywalking/oap/server/core/analysis/worker/TopNStreamProcessor.java...private static final TopNStreamProcessor PROCESSOR = new TopNStreamProcessor(); @Getter private List
List接口可以存放任意的数据，而且在LIst接口中内容是可以重复的 List接口常用子类：ArrayList、vector 常用操作： 向其尾部添加数据：add() 返回集合的元素个数：int...查找指定的对象是否存在：int indexOf(Object o) 移除元素：remove(int index) public static void main(String args[]){ List
⭐3. list与forward_list非常相似：最主要的不同在于forward_list是单链表，只能朝前迭代，已让其更简单高效。 ⭐4....与其他序列式容器相比，list和forward_list最大的缺陷是不支持任意位置的随机访问,比如：要访问list的第6个元素，必须从已知的位置(比如头部或者尾部)迭代到该位置，在这段位置上迭代需要线性的时间开销...；list还需要一些额外的空间，以保存每个节点的相关联信息(对于存储类型较小元素的大list来说这可能是一个重要的因素) 模拟实现list 首先创建节点和list类，以及使用命名空间来防止冲突。..._size); } list(const list& lt) { //得有一个哨兵位 empty_initialize(); list tmp(lt.begin...因为list的底层结构为带头结点的双向循环链表，因此在list中进行插入时是不会导致list的迭代器失效的，只有在删除时才会失效，并且失效的只是指向被删除节点的迭代器，其他迭代器不会受到影响。
/server-core/src/main/java/org/apache/skywalking/oap/server/core/source/DatabaseSlowStatement.java @ScopeDeclaration.../server-receiver-plugin/skywalking-trace-receiver-plugin/src/main/java/org/apache/skywalking/oap/server...serviceInventoryCache; private final EndpointInventoryCache endpointInventoryCache; private final List... entrySourceBuilders; private final List exitSourceBuilders; private...final List slowDatabaseAccesses; private final TraceServiceModuleConfig config
Do_Auto_and_Manual_Instrumentationin_Apache_Sky_Walking_APM_1440-16.jpg RegisterModuleProvider skywalking-6.6.0/oap-server.../server-receiver-plugin/skywalking-register-receiver-plugin/src/main/java/org/apache/skywalking/oap/server.../server-receiver-plugin/skywalking-register-receiver-plugin/src/main/java/org/apache/skywalking/oap/server.../server-receiver-plugin/skywalking-register-receiver-plugin/src/main/java/org/apache/skywalking/oap/server...getAsLong(); JsonObject osInfoJson = instance.get(OS_INFO).getAsJsonObject(); List
观察是否将列表和非列表的类型相连。观察是否将列表和非列表的类型相连。观察是否将列表和非列表的类型相连。观察是否将列表和非列表的类型相连。观察是否将列表和非列表的...
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