/**
* get cluster's summary, it will contain SupervisorSummary and TopologySummary
*
* @return ClusterSummary
*/
@Override
public ClusterSummary getClusterInfo() throws TException {
try {
StormClusterState stormClusterState = data.getStormClusterState();
Map<String, Assignment> assignments = new HashMap<String, Assignment>();
// get nimbus running time
int uptime = data.uptime();
// get TopologySummary
List<TopologySummary> topologySummaries = new ArrayList<TopologySummary>();
// get all active topology's StormBase
Map<String, StormBase> bases = Cluster.topology_bases(stormClusterState);
for (Entry<String, StormBase> entry : bases.entrySet()) {
String topologyId = entry.getKey();
StormBase base = entry.getValue();
Assignment assignment = stormClusterState.assignment_info(topologyId, null);
if (assignment == null) {
LOG.error("Failed to get assignment of " + topologyId);
continue;
}
assignments.put(topologyId, assignment);
String group = "default";
if (data.isGroupMode()) group = base.getGroup();
if (group == null) group = "default";
TopologySummary topology =
NimbusUtils.mkTopologySummary(
assignment,
topologyId,
base.getStormName(),
base.getStatusString(),
TimeUtils.time_delta(base.getLanchTimeSecs()),
group);
topologySummaries.add(topology);
}
// all supervisors
Map<String, SupervisorInfo> supervisorInfos =
Cluster.allSupervisorInfo(stormClusterState, null);
// generate SupervisorSummaries
List<SupervisorSummary> supervisorSummaries =
NimbusUtils.mkSupervisorSummaries(supervisorInfos, assignments);
return new ClusterSummary(
supervisorSummaries,
uptime,
topologySummaries,
data.getGroupToTopology(),
data.getGroupToResource(),
data.getGroupToUsedResource(),
data.isGroupMode());
} catch (TException e) {
LOG.info("Failed to get ClusterSummary ", e);
throw e;
} catch (Exception e) {
LOG.info("Failed to get ClusterSummary ", e);
throw new TException(e);
}
}
@Override
public SupervisorWorkers getSupervisorWorkers(String host) throws NotAliveException, TException {
try {
StormClusterState stormClusterState = data.getStormClusterState();
String supervisorId = null;
SupervisorInfo supervisorInfo = null;
String ip = NetWorkUtils.host2Ip(host);
String hostName = NetWorkUtils.ip2Host(host);
// all supervisors
Map<String, SupervisorInfo> supervisorInfos =
Cluster.allSupervisorInfo(stormClusterState, null);
for (Entry<String, SupervisorInfo> entry : supervisorInfos.entrySet()) {
SupervisorInfo info = entry.getValue();
if (info.getHostName().equals(hostName) || info.getHostName().equals(ip)) {
supervisorId = entry.getKey();
supervisorInfo = info;
break;
}
}
if (supervisorId == null) {
throw new TException("No supervisor of " + host);
}
Map<String, Assignment> assignments = new HashMap<String, Assignment>();
// get all active topology's StormBase
Map<String, StormBase> bases = Cluster.topology_bases(stormClusterState);
for (Entry<String, StormBase> entry : bases.entrySet()) {
String topologyId = entry.getKey();
StormBase base = entry.getValue();
Assignment assignment = stormClusterState.assignment_info(topologyId, null);
if (assignment == null) {
LOG.error("Failed to get assignment of " + topologyId);
continue;
}
assignments.put(topologyId, assignment);
}
Map<Integer, WorkerSummary> portWorkerSummarys = new TreeMap<Integer, WorkerSummary>();
for (Entry<String, Assignment> entry : assignments.entrySet()) {
String topologyId = entry.getKey();
Assignment assignment = entry.getValue();
Map<Integer, String> taskToComponent =
Cluster.topology_task_info(stormClusterState, topologyId);
Map<Integer, ResourceAssignment> taskToResource = assignment.getTaskToResource();
for (Entry<Integer, ResourceAssignment> resourceEntry : taskToResource.entrySet()) {
Integer taskId = resourceEntry.getKey();
ResourceAssignment resourceAssignment = resourceEntry.getValue();
if (supervisorId.equals(resourceAssignment.getSupervisorId()) == false) {
continue;
}
supervisorInfo.allocResource(resourceAssignment);
Integer port = resourceAssignment.getPort();
WorkerSummary workerSummary = portWorkerSummarys.get(port);
if (workerSummary == null) {
workerSummary = new WorkerSummary();
workerSummary.set_port(port);
workerSummary.set_topology(topologyId);
workerSummary.set_tasks(new ArrayList<TaskSummary>());
portWorkerSummarys.put(port, workerSummary);
}
String componentName = taskToComponent.get(taskId);
int uptime = TimeUtils.time_delta(assignment.getTaskStartTimeSecs().get(taskId));
List<TaskSummary> tasks = workerSummary.get_tasks();
TaskSummary taskSummary =
NimbusUtils.mkSimpleTaskSummary(
resourceAssignment, taskId, componentName, host, uptime);
tasks.add(taskSummary);
}
}
List<WorkerSummary> wokersList = new ArrayList<WorkerSummary>();
wokersList.addAll(portWorkerSummarys.values());
SupervisorSummary supervisorSummary =
NimbusUtils.mkSupervisorSummary(supervisorInfo, supervisorId);
return new SupervisorWorkers(supervisorSummary, wokersList);
} catch (TException e) {
LOG.info("Failed to get ClusterSummary ", e);
throw e;
} catch (Exception e) {
LOG.info("Failed to get ClusterSummary ", e);
throw new TException(e);
}
}
protected TopologyAssignContext prepareTopologyAssign(TopologyAssignEvent event)
throws Exception {
TopologyAssignContext ret = new TopologyAssignContext();
String topologyId = event.getTopologyId();
/** 读取本地目录下的stormconf.ser和stormcode.ser */
Map<Object, Object> nimbusConf = nimbusData.getConf();
Map<Object, Object> topologyConf =
StormConfig.read_nimbus_topology_conf(nimbusConf, topologyId);
StormTopology rawTopology = StormConfig.read_nimbus_topology_code(nimbusConf, topologyId);
ret.setRawTopology(rawTopology);
Map stormConf = new HashMap();
stormConf.putAll(nimbusConf);
stormConf.putAll(topologyConf);
ret.setStormConf(stormConf);
StormClusterState stormClusterState = nimbusData.getStormClusterState();
// get all running supervisor, don't need callback to watch supervisor
/** 获取所有的运行的supervisor,以及supervisorInfo */
Map<String, SupervisorInfo> supInfos = Cluster.allSupervisorInfo(stormClusterState, null);
if (supInfos.size() == 0) {
throw new FailedAssignTopologyException(
"Failed to make assignment " + topologyId + ", due to no alive supervisor");
}
/** 获取topologyId下的所有tasks */
Map<Integer, String> taskToComponent =
Cluster.topology_task_info(stormClusterState, topologyId);
ret.setTaskToComponent(taskToComponent);
// get taskids /ZK/tasks/topologyId
Set<Integer> allTaskIds = taskToComponent.keySet();
if (allTaskIds == null || allTaskIds.size() == 0) {
String errMsg = "Failed to get all task ID list from /ZK-dir/tasks/" + topologyId;
LOG.warn(errMsg);
throw new IOException(errMsg);
}
ret.setAllTaskIds(allTaskIds);
Set<Integer> aliveTasks = new HashSet<Integer>();
// unstoppedTasks are tasks which are alive on no supervisor's(dead)
// machine
/** 未完成的任务，supervisor已死，任务没完成 */
Set<Integer> unstoppedTasks = new HashSet<Integer>();
Set<Integer> deadTasks = new HashSet<Integer>();
Set<ResourceWorkerSlot> unstoppedWorkers = new HashSet<ResourceWorkerSlot>();
Assignment existingAssignment = stormClusterState.assignment_info(topologyId, null);
if (existingAssignment != null) {
aliveTasks = getAliveTasks(topologyId, allTaskIds);
unstoppedTasks = getUnstoppedSlots(aliveTasks, supInfos, existingAssignment);
deadTasks.addAll(allTaskIds);
deadTasks.removeAll(aliveTasks);
}
ret.setDeadTaskIds(deadTasks);
ret.setUnstoppedTaskIds(unstoppedTasks);
// Step 2: get all slots resource, free slots/ alive slots/ unstopped
// slots
getFreeSlots(supInfos, stormClusterState);
ret.setCluster(supInfos);
if (existingAssignment == null) {
ret.setAssignType(TopologyAssignContext.ASSIGN_TYPE_NEW);
try {
AssignmentBak lastAssignment = stormClusterState.assignment_bak(event.getTopologyName());
if (lastAssignment != null) {
ret.setOldAssignment(lastAssignment.getAssignment());
}
} catch (Exception e) {
LOG.warn("Fail to get old assignment", e);
}
} else {
ret.setOldAssignment(existingAssignment);
if (event.isScratch()) {
ret.setAssignType(TopologyAssignContext.ASSIGN_TYPE_REBALANCE);
unstoppedWorkers = getUnstoppedWorkers(unstoppedTasks, existingAssignment);
ret.setUnstoppedWorkers(unstoppedWorkers);
} else {
ret.setAssignType(TopologyAssignContext.ASSIGN_TYPE_MONITOR);
unstoppedWorkers = getUnstoppedWorkers(aliveTasks, existingAssignment);
ret.setUnstoppedWorkers(unstoppedWorkers);
}
}
return ret;
}
