Examples with ORequestDatabaseConfigurationTask com.orientechnologies.orient.server.distributed.impl.task.ORequestDatabaseConfigurationTask used on opensource projects

Example 1 with ORequestDatabaseConfigurationTask

use of com.orientechnologies.orient.server.distributed.impl.task.ORequestDatabaseConfigurationTask in project orientdb by orientechnologies.

the class OClusterHealthChecker method checkServerConfig.

private void checkServerConfig() {
    // NO NODES CONFIGURED: CHECK IF THERE IS ANY MISCONFIGURATION BY CHECKING THE DATABASE STATUSES
    for (String databaseName : manager.getMessageService().getDatabases()) {
        final ODistributedConfiguration cfg = manager.getDatabaseConfiguration(databaseName);
        final Set<String> confServers = cfg.getServers(null);
        for (String s : manager.getActiveServers()) {
            if (manager.isNodeAvailable(s, databaseName) && !confServers.contains(s)) {
                final List<String> nodes = new ArrayList<String>();
                for (String n : manager.getActiveServers()) {
                    if (manager.isNodeAvailable(n, databaseName))
                        nodes.add(n);
                }
                // THE SERVERS HAS THE DATABASE ONLINE BUT IT IS NOT IN THE CFG. DETERMINE THE MOST UPD CFG
                try {
                    final ODistributedResponse response = manager.sendRequest(databaseName, null, nodes, new ORequestDatabaseConfigurationTask(databaseName), manager.getNextMessageIdCounter(), ODistributedRequest.EXECUTION_MODE.RESPONSE, null, null);
                    final Object payload = response != null ? response.getPayload() : null;
                    if (payload instanceof Map) {
                        String mostUpdatedServer = null;
                        int mostUpdatedServerVersion = -1;
                        final Map<String, Object> responses = (Map<String, Object>) payload;
                        for (Map.Entry<String, Object> r : responses.entrySet()) {
                            if (r.getValue() instanceof ODocument) {
                                final ODocument doc = (ODocument) r.getValue();
                                int v = doc.field("version");
                                if (v > mostUpdatedServerVersion) {
                                    mostUpdatedServerVersion = v;
                                    mostUpdatedServer = r.getKey();
                                }
                            }
                        }
                        if (cfg.getVersion() < mostUpdatedServerVersion) {
                            // OVERWRITE DB VERSION
                            ((ODistributedStorage) manager.getStorage(databaseName)).setDistributedConfiguration(new OModifiableDistributedConfiguration((ODocument) responses.get(mostUpdatedServer)));
                        }
                    }
                } catch (ODistributedOperationException e) {
                // NO SERVER RESPONDED, THE SERVER COULD BE ISOLATED: SET ALL THE SERVER AS OFFLINE
                }
            }
        }
    }
}