import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
import org.opendaylight.controller.md.sal.binding.api.DataBroker;
import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
import org.opendaylight.ovsdb.lib.schema.GenericTableSchema;
import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
import org.opendaylight.ovsdb.schema.openvswitch.OpenVSwitch;
+import org.opendaylight.ovsdb.southbound.reconciliation.ReconciliationManager;
+import org.opendaylight.ovsdb.southbound.reconciliation.ReconciliationTask;
+import org.opendaylight.ovsdb.southbound.reconciliation.configuration.BridgeConfigReconciliationTask;
+import org.opendaylight.ovsdb.southbound.reconciliation.connection.ConnectionReconciliationTask;
import org.opendaylight.ovsdb.southbound.transactions.md.OvsdbNodeRemoveCommand;
import org.opendaylight.ovsdb.southbound.transactions.md.TransactionCommand;
import org.opendaylight.ovsdb.southbound.transactions.md.TransactionInvoker;
private EntityOwnershipService entityOwnershipService;
private OvsdbDeviceEntityOwnershipListener ovsdbDeviceEntityOwnershipListener;
private OvsdbConnection ovsdbConnection;
+ private final ReconciliationManager reconciliationManager;
public OvsdbConnectionManager(DataBroker db,TransactionInvoker txInvoker,
EntityOwnershipService entityOwnershipService,
this.entityOwnershipService = entityOwnershipService;
this.ovsdbDeviceEntityOwnershipListener = new OvsdbDeviceEntityOwnershipListener(this, entityOwnershipService);
this.ovsdbConnection = ovsdbConnection;
+ this.reconciliationManager = new ReconciliationManager(db);
}
@Override
externalClient.getConnectionInfo().getLocalPort());
List<String> databases = new ArrayList<>();
try {
- databases = externalClient.getDatabases().get();
- } catch (InterruptedException | ExecutionException e) {
- LOG.warn("Unable to fetch database list");
+ databases = externalClient.getDatabases().get(1000, TimeUnit.MILLISECONDS);
+ if(databases.contains(SouthboundConstants.OPEN_V_SWITCH)) {
+ OvsdbConnectionInstance client = connectedButCallBacksNotRegistered(externalClient);
+ // Register Cluster Ownership for ConnectionInfo
+ registerEntityForOwnership(client);
+ }
+ } catch (InterruptedException | ExecutionException | TimeoutException e) {
+ LOG.warn("Unable to fetch Database list from device {}. Disconnecting from the device.",
+ externalClient.getConnectionInfo().getRemoteAddress(), e);
+ externalClient.disconnect();
}
- if(databases.contains(SouthboundConstants.OPEN_V_SWITCH)) {
- OvsdbConnectionInstance client = connectedButCallBacksNotRegistered(externalClient);
- // Register Cluster Ownership for ConnectionInfo
- registerEntityForOwnership(client);
- }
}
public OvsdbConnectionInstance connectedButCallBacksNotRegistered(final OvsdbClient externalClient) {
ovsdbConnectionInstance.disconnect();
removeConnectionInstance(key);
+
+ stopBridgeConfigReconciliationIfActive(ovsdbConnectionInstance.getInstanceIdentifier());
}
ovsdbConnectionInstance = new OvsdbConnectionInstance(key, externalClient, txInvoker,
txInvoker.invoke(new OvsdbNodeRemoveCommand(ovsdbConnectionInstance, null, null));
removeConnectionInstance(key);
+
+ //Controller initiated connection can be terminated from switch side.
+ //So cleanup the instance identifier cache.
+ removeInstanceIdentifier(key);
+ stopBridgeConfigReconciliationIfActive(ovsdbConnectionInstance.getInstanceIdentifier());
+ retryConnection(ovsdbConnectionInstance.getInstanceIdentifier(),
+ ovsdbConnectionInstance.getOvsdbNodeAugmentation(),
+ ConnectionReconciliationTriggers.ON_DISCONNECT);
} else {
LOG.warn("disconnected : Connection instance not found for OVSDB Node {} ", key);
}
client.disconnect();
removeInstanceIdentifier(ovsdbNode.getConnectionInfo());
+
+ stopBridgeConfigReconciliationIfActive(client.getInstanceIdentifier());
} else {
LOG.debug("disconnect : connection instance not found for {}",ovsdbNode.getConnectionInfo());
}
return ovsdbConnectionInstance.getHasDeviceOwnership();
}
+ public void reconcileConnection(InstanceIdentifier<Node> iid, OvsdbNodeAugmentation ovsdbNode){
+ this.retryConnection(iid, ovsdbNode,
+ ConnectionReconciliationTriggers.ON_CONTROLLER_INITIATED_CONNECTION_FAILURE);
+
+ }
+
+ public void stopConnectionReconciliationIfActive(InstanceIdentifier<?> iid, OvsdbNodeAugmentation ovsdbNode) {
+ final ReconciliationTask task = new ConnectionReconciliationTask(
+ reconciliationManager,
+ this,
+ iid,
+ ovsdbNode);
+ reconciliationManager.dequeue(task);
+ }
+
+ public void stopBridgeConfigReconciliationIfActive(InstanceIdentifier<?> iid) {
+ final ReconciliationTask task = new BridgeConfigReconciliationTask(
+ reconciliationManager,
+ this,
+ iid,
+ null);
+ reconciliationManager.dequeue(task);
+ }
+
private void handleOwnershipChanged(EntityOwnershipChange ownershipChange) {
OvsdbConnectionInstance ovsdbConnectionInstance = getConnectionInstanceFromEntity(ownershipChange.getEntity());
LOG.debug("handleOwnershipChanged: {} event received for device {}",
//so register for monitor callbacks
ovsdbConnectionInstance.registerCallbacks();
+ reconcileBridgeConfigurations(ovsdbConnectionInstance);
} else {
//You were owner of the device, but now you are not. With the current ownership
//grant mechanism, this scenario should not occur. Because this scenario will occur
entityConnectionMap.remove(ovsdbConnectionInstance.getConnectedEntity());
}
+ private void retryConnection(final InstanceIdentifier<Node> iid, final OvsdbNodeAugmentation ovsdbNode,
+ ConnectionReconciliationTriggers trigger) {
+ final ReconciliationTask task = new ConnectionReconciliationTask(
+ reconciliationManager,
+ this,
+ iid,
+ ovsdbNode);
+
+ if(reconciliationManager.isEnqueued(task)){
+ return;
+ }
+ switch(trigger){
+ case ON_CONTROLLER_INITIATED_CONNECTION_FAILURE:
+ reconciliationManager.enqueueForRetry(task);
+ break;
+ case ON_DISCONNECT:
+ {
+ ReadOnlyTransaction tx = db.newReadOnlyTransaction();
+ CheckedFuture<Optional<Node>, ReadFailedException> readNodeFuture =
+ tx.read(LogicalDatastoreType.CONFIGURATION, iid);
+
+ final OvsdbConnectionManager connectionManager = this;
+ Futures.addCallback(readNodeFuture, new FutureCallback<Optional<Node>>() {
+ @Override
+ public void onSuccess(@Nullable Optional<Node> node) {
+ if (node.isPresent()) {
+ LOG.info("Disconnected/Failed connection {} was controller initiated, attempting " +
+ "reconnection", ovsdbNode.getConnectionInfo());
+ reconciliationManager.enqueue(task);
+
+ } else {
+ LOG.debug("Connection {} was switch initiated, no reconciliation is required"
+ , iid.firstKeyOf(Node.class).getNodeId());
+ }
+ }
+
+ @Override
+ public void onFailure(Throwable t) {
+ LOG.warn("Read Config/DS for Node failed! {}", iid, t);
+ }
+ });
+ break;
+ }
+ default:
+ break;
+ }
+ }
+
+ private void reconcileBridgeConfigurations(final OvsdbConnectionInstance client) {
+ final InstanceIdentifier<Node> nodeIid = client.getInstanceIdentifier();
+ final ReconciliationTask task = new BridgeConfigReconciliationTask(
+ reconciliationManager, OvsdbConnectionManager.this, nodeIid, client);
+
+ reconciliationManager.enqueue(task);
+ }
+
private class OvsdbDeviceEntityOwnershipListener implements EntityOwnershipListener {
private OvsdbConnectionManager cm;
private EntityOwnershipListenerRegistration listenerRegistration;
cm.handleOwnershipChanged(ownershipChange);
}
}
+
+ private enum ConnectionReconciliationTriggers {
+ /*
+ Reconciliation trigger for scenario where controller's attempt
+ to connect to switch fails on config data store notification
+ */
+ ON_CONTROLLER_INITIATED_CONNECTION_FAILURE,
+
+ /*
+ Reconciliation trigger for the scenario where controller
+ initiated connection disconnects.
+ */
+ ON_DISCONNECT
+ }
}
Code Review / ovsdb.git / blobdiff