/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.ambari.server;
import java.util.List;
import org.apache.ambari.server.orm.dao.ClusterVersionDAO;
import org.apache.ambari.server.orm.dao.HostVersionDAO;
import org.apache.ambari.server.orm.entities.ClusterVersionEntity;
import org.apache.ambari.server.orm.entities.HostVersionEntity;
import org.apache.ambari.server.state.RepositoryVersionState;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.inject.Inject;
/**
* Is executed on server start.
* Checks server state and recovers it to valid if required.
*/
public class StateRecoveryManager {
private static Logger LOG = LoggerFactory.getLogger(StateRecoveryManager.class);
@Inject
private HostVersionDAO hostVersionDAO;
@Inject
private ClusterVersionDAO clusterVersionDAO;
public void doWork() {
checkHostAndClusterVersions();
}
void checkHostAndClusterVersions() {
List<HostVersionEntity> hostVersions = hostVersionDAO.findAll();
for (HostVersionEntity hostVersion : hostVersions) {
if (hostVersion.getState().equals(RepositoryVersionState.INSTALLING)) {
hostVersion.setState(RepositoryVersionState.INSTALL_FAILED);
String msg = String.format(
"Recovered state of host version %s on host %s from %s to %s",
hostVersion.getRepositoryVersion().getDisplayName(),
hostVersion.getHostName(),
RepositoryVersionState.INSTALLING,
RepositoryVersionState.INSTALL_FAILED);
LOG.warn(msg);
hostVersionDAO.merge(hostVersion);
}
}
List<ClusterVersionEntity> clusterVersions = clusterVersionDAO.findAll();
for (ClusterVersionEntity clusterVersion : clusterVersions) {
if (clusterVersion.getState().equals(RepositoryVersionState.INSTALLING)) {
clusterVersion.setState(RepositoryVersionState.INSTALL_FAILED);
String msg = String.format(
"Recovered state of cluster version %s for cluster %s from %s to %s",
clusterVersion.getRepositoryVersion().getDisplayName(),
clusterVersion.getClusterEntity().getClusterName(),
RepositoryVersionState.INSTALLING,
RepositoryVersionState.INSTALL_FAILED);
LOG.warn(msg);
clusterVersionDAO.merge(clusterVersion);
}
}
}
}