Examples with MutableStatusRegistry com.yahoo.vespa.orchestrator.status.MutableStatusRegistry used on opensource projects

Example 1 with MutableStatusRegistry

use of com.yahoo.vespa.orchestrator.status.MutableStatusRegistry in project vespa by vespa-engine.

the class OrchestratorImpl method resume.

@Override
public void resume(HostName hostName) throws HostStateChangeDeniedException, HostNameNotFoundException {
    /*
        * When making a state transition to this state, we have to consider that if the host has been in
        * ALLOWED_TO_BE_DOWN state, services on the host may recently have been stopped (and, presumably, started).
        * Service monitoring may not have had enough time to detect that services were stopped,
        * and may therefore mistakenly report services as up, even if they still haven't initialized and
        * are not yet ready for serving. Erroneously reporting both host and services as up causes a race
        * where services on other hosts may be stopped prematurely. A delay here ensures that service
        * monitoring will have had time to catch up. Since we don't want do the delay with the lock held,
        * and the host status service's locking functionality does not support something like condition
        * variables or Object.wait(), we break out here, releasing the lock before delaying.
        */
    sleep(serviceMonitorConvergenceLatencySeconds, TimeUnit.SECONDS);
    ApplicationInstance appInstance = getApplicationInstance(hostName);
    try (MutableStatusRegistry statusRegistry = statusService.lockApplicationInstance_forCurrentThreadOnly(appInstance.reference())) {
        final HostStatus currentHostState = statusRegistry.getHostStatus(hostName);
        if (HostStatus.NO_REMARKS == currentHostState) {
            return;
        }
        ApplicationInstanceStatus appStatus = statusService.forApplicationInstance(appInstance.reference()).getApplicationInstanceStatus();
        if (appStatus == ApplicationInstanceStatus.NO_REMARKS) {
            policy.releaseSuspensionGrant(appInstance, hostName, statusRegistry);
        }
    }
}

Example 2 with MutableStatusRegistry

use of com.yahoo.vespa.orchestrator.status.MutableStatusRegistry in project vespa by vespa-engine.

the class OrchestratorImpl method suspendGroup.

// Public for testing purposes
@Override
public void suspendGroup(NodeGroup nodeGroup) throws HostStateChangeDeniedException, HostNameNotFoundException {
    ApplicationInstanceReference applicationReference = nodeGroup.getApplicationReference();
    try (MutableStatusRegistry hostStatusRegistry = statusService.lockApplicationInstance_forCurrentThreadOnly(applicationReference)) {
        ApplicationInstanceStatus appStatus = statusService.forApplicationInstance(applicationReference).getApplicationInstanceStatus();
        if (appStatus == ApplicationInstanceStatus.ALLOWED_TO_BE_DOWN) {
            return;
        }
        ApplicationApi applicationApi = new ApplicationApiImpl(nodeGroup, hostStatusRegistry, clusterControllerClientFactory);
        policy.grantSuspensionRequest(applicationApi);
    }
}

Example 3 with MutableStatusRegistry

use of com.yahoo.vespa.orchestrator.status.MutableStatusRegistry in project vespa by vespa-engine.

the class OrchestratorImpl method setApplicationStatus.

private void setApplicationStatus(ApplicationId appId, ApplicationInstanceStatus status) throws ApplicationStateChangeDeniedException, ApplicationIdNotFoundException {
    ApplicationInstanceReference appRef = OrchestratorUtil.toApplicationInstanceReference(appId, instanceLookupService);
    try (MutableStatusRegistry statusRegistry = statusService.lockApplicationInstance_forCurrentThreadOnly(appRef)) {
        // Short-circuit if already in wanted state
        if (status == statusRegistry.getApplicationInstanceStatus())
            return;
        // Set content clusters for this application in maintenance on suspend
        if (status == ApplicationInstanceStatus.ALLOWED_TO_BE_DOWN) {
            ApplicationInstance application = getApplicationInstance(appRef);
            // Mark it allowed to be down before we manipulate the clustercontroller
            OrchestratorUtil.getHostsUsedByApplicationInstance(application).forEach(h -> statusRegistry.setHostState(h, HostStatus.ALLOWED_TO_BE_DOWN));
            // If the clustercontroller throws an error the nodes will be marked as allowed to be down
            // and be set back up on next resume invocation.
            setClusterStateInController(application, ClusterControllerNodeState.MAINTENANCE);
        }
        statusRegistry.setApplicationInstanceStatus(status);
    }
}

Example 4 with MutableStatusRegistry

use of com.yahoo.vespa.orchestrator.status.MutableStatusRegistry in project vespa by vespa-engine.

the class OrchestratorImpl method acquirePermissionToRemove.

@Override
public void acquirePermissionToRemove(HostName hostName) throws OrchestrationException {
    ApplicationInstance appInstance = getApplicationInstance(hostName);
    NodeGroup nodeGroup = new NodeGroup(appInstance, hostName);
    try (MutableStatusRegistry statusRegistry = statusService.lockApplicationInstance_forCurrentThreadOnly(appInstance.reference())) {
        ApplicationApi applicationApi = new ApplicationApiImpl(nodeGroup, statusRegistry, clusterControllerClientFactory);
        policy.acquirePermissionToRemove(applicationApi);
    }
}