Examples with MaintainAnswer com.cloud.agent.api.MaintainAnswer used on opensource projects

Example 1 with MaintainAnswer

use of com.cloud.agent.api.MaintainAnswer in project CloudStack-archive by CloudStack-extras.

the class Agent method processRequest.

protected void processRequest(final Request request, final Link link) {
    boolean requestLogged = false;
    Response response = null;
    try {
        final Command[] cmds = request.getCommands();
        final Answer[] answers = new Answer[cmds.length];
        for (int i = 0; i < cmds.length; i++) {
            final Command cmd = cmds[i];
            Answer answer;
            try {
                if (s_logger.isDebugEnabled()) {
                    // this is a hack to make sure we do NOT log the ssh keys
                    if ((cmd instanceof ModifySshKeysCommand)) {
                        s_logger.debug("Received the request for command: ModifySshKeysCommand");
                    } else {
                        if (// ensures request is logged only once per method call
                        !requestLogged) {
                            s_logger.debug("Request:" + request.toString());
                            requestLogged = true;
                        }
                    }
                    s_logger.debug("Processing command: " + cmd.toString());
                }
                if (cmd instanceof CronCommand) {
                    final CronCommand watch = (CronCommand) cmd;
                    scheduleWatch(link, request, watch.getInterval() * 1000, watch.getInterval() * 1000);
                    answer = new Answer(cmd, true, null);
                } else if (cmd instanceof UpgradeCommand) {
                    final UpgradeCommand upgrade = (UpgradeCommand) cmd;
                    answer = upgradeAgent(upgrade.getUpgradeUrl(), upgrade);
                } else if (cmd instanceof ShutdownCommand) {
                    ShutdownCommand shutdown = (ShutdownCommand) cmd;
                    s_logger.debug("Received shutdownCommand, due to: " + shutdown.getReason());
                    cancelTasks();
                    _reconnectAllowed = false;
                    answer = new Answer(cmd, true, null);
                } else if (cmd instanceof MaintainCommand) {
                    s_logger.debug("Received maintainCommand");
                    cancelTasks();
                    _reconnectAllowed = false;
                    answer = new MaintainAnswer((MaintainCommand) cmd);
                } else if (cmd instanceof AgentControlCommand) {
                    answer = null;
                    synchronized (_controlListeners) {
                        for (IAgentControlListener listener : _controlListeners) {
                            answer = listener.processControlRequest(request, (AgentControlCommand) cmd);
                            if (answer != null) {
                                break;
                            }
                        }
                    }
                    if (answer == null) {
                        s_logger.warn("No handler found to process cmd: " + cmd.toString());
                        answer = new AgentControlAnswer(cmd);
                    }
                } else {
                    _inProgress.incrementAndGet();
                    try {
                        answer = _resource.executeRequest(cmd);
                    } finally {
                        _inProgress.decrementAndGet();
                    }
                    if (answer == null) {
                        s_logger.debug("Response: unsupported command" + cmd.toString());
                        answer = Answer.createUnsupportedCommandAnswer(cmd);
                    }
                }
            } catch (final Throwable th) {
                s_logger.warn("Caught: ", th);
                final StringWriter writer = new StringWriter();
                th.printStackTrace(new PrintWriter(writer));
                answer = new Answer(cmd, false, writer.toString());
            }
            answers[i] = answer;
            if (!answer.getResult() && request.stopOnError()) {
                for (i++; i < cmds.length; i++) {
                    answers[i] = new Answer(cmds[i], false, "Stopped by previous failure");
                }
                break;
            }
        }
        response = new Response(request, answers);
    } finally {
        if (s_logger.isDebugEnabled()) {
            s_logger.debug(response != null ? response.toString() : "response is null");
        }
        if (response != null) {
            try {
                link.send(response.toBytes());
            } catch (final ClosedChannelException e) {
                s_logger.warn("Unable to send response: " + response.toString());
            }
        }
    }
}

Example 2 with MaintainAnswer

use of com.cloud.agent.api.MaintainAnswer in project cosmic by MissionCriticalCloud.

the class Agent method processRequest.

protected void processRequest(final Request request, final Link link) {
    boolean requestLogged = false;
    Response response = null;
    try {
        final Command[] cmds = request.getCommands();
        final Answer[] answers = new Answer[cmds.length];
        for (int i = 0; i < cmds.length; i++) {
            final Command cmd = cmds[i];
            Answer answer;
            if (cmd.getContextParam("logid") != null) {
                MDC.put("logcontextid", cmd.getContextParam("logid"));
            }
            if (// ensures request is logged only once per method call
            !requestLogged) {
                final String requestMsg = request.toString();
                if (requestMsg != null) {
                    logger.debug("Request:" + requestMsg);
                }
                requestLogged = true;
            }
            logger.debug("Processing command: " + cmd.toString());
            if (cmd instanceof CronCommand) {
                final CronCommand watch = (CronCommand) cmd;
                scheduleWatch(link, request, (long) watch.getInterval() * 1000, watch.getInterval() * 1000);
                answer = new Answer(cmd, true, null);
            } else if (cmd instanceof ShutdownCommand) {
                final ShutdownCommand shutdown = (ShutdownCommand) cmd;
                logger.debug("Received shutdownCommand, due to: " + shutdown.getReason());
                cancelTasks();
                _reconnectAllowed = false;
                answer = new Answer(cmd, true, null);
            } else if (cmd instanceof ReadyCommand && ((ReadyCommand) cmd).getDetails() != null) {
                logger.debug("Not ready to connect to mgt server: " + ((ReadyCommand) cmd).getDetails());
                System.exit(1);
                return;
            } else if (cmd instanceof MaintainCommand) {
                logger.debug("Received maintainCommand");
                cancelTasks();
                _reconnectAllowed = false;
                answer = new MaintainAnswer((MaintainCommand) cmd);
            } else if (cmd instanceof AgentControlCommand) {
                answer = null;
                synchronized (_controlListeners) {
                    for (final IAgentControlListener listener : _controlListeners) {
                        answer = listener.processControlRequest(request, (AgentControlCommand) cmd);
                        if (answer != null) {
                            break;
                        }
                    }
                }
                if (answer == null) {
                    logger.warn("No handler found to process cmd: " + cmd.toString());
                    answer = new AgentControlAnswer(cmd);
                }
            } else {
                if (cmd instanceof ReadyCommand) {
                    processReadyCommand(cmd);
                }
                _inProgress.incrementAndGet();
                try {
                    answer = resource.executeRequest(cmd);
                } finally {
                    _inProgress.decrementAndGet();
                }
                if (answer == null) {
                    logger.debug("Response: unsupported command" + cmd.toString());
                    answer = Answer.createUnsupportedCommandAnswer(cmd);
                }
            }
            answers[i] = answer;
            if (!answer.getResult() && request.stopOnError()) {
                for (i++; i < cmds.length; i++) {
                    answers[i] = new Answer(cmds[i], false, "Stopped by previous failure");
                }
                break;
            }
        }
        response = new Response(request, answers);
    } finally {
        if (logger.isDebugEnabled()) {
            final String responseMsg = response.toString();
            if (responseMsg != null) {
                logger.debug(response.toString());
            }
        }
        if (response != null) {
            try {
                link.send(response.toBytes());
            } catch (final ClosedChannelException e) {
                logger.warn("Unable to send response: " + response.toString());
            }
        }
    }
}

Example 3 with MaintainAnswer

use of com.cloud.agent.api.MaintainAnswer in project cosmic by MissionCriticalCloud.

the class CitrixMaintainCommandWrapper method execute.

@Override
public Answer execute(final MaintainCommand command, final CitrixResourceBase citrixResourceBase) {
    final Connection conn = citrixResourceBase.getConnection();
    try {
        final XsHost xsHost = citrixResourceBase.getHost();
        final String uuid = xsHost.getUuid();
        final Host host = Host.getByUuid(conn, uuid);
        // remove all tags cloud stack
        final Host.Record hr = host.getRecord(conn);
        // Adding this check because could not get the mock to work. Will push the code and fix it afterwards.
        if (hr == null) {
            s_logger.warn("Host.Record is null.");
            return new MaintainAnswer(command, false, "Host.Record is null");
        }
        final Iterator<String> it = hr.tags.iterator();
        while (it.hasNext()) {
            final String tag = it.next();
            if (tag.contains("cloud")) {
                it.remove();
            }
        }
        host.setTags(conn, hr.tags);
        return new MaintainAnswer(command);
    } catch (final XenAPIException e) {
        s_logger.warn("Unable to put server in maintainence mode", e);
        return new MaintainAnswer(command, false, e.getMessage());
    } catch (final XmlRpcException e) {
        s_logger.warn("Unable to put server in maintainence mode", e);
        return new MaintainAnswer(command, false, e.getMessage());
    }
}

Example 4 with MaintainAnswer

use of com.cloud.agent.api.MaintainAnswer in project cosmic by MissionCriticalCloud.

the class ResourceManagerImpl method doMaintain.

private boolean doMaintain(final long hostId) {
    final HostVO host = _hostDao.findById(hostId);
    final MaintainAnswer answer = (MaintainAnswer) _agentMgr.easySend(hostId, new MaintainCommand());
    if (answer == null || !answer.getResult()) {
        s_logger.warn("Unable to send MaintainCommand to host: " + hostId);
        return false;
    }
    try {
        resourceStateTransitTo(host, ResourceState.Event.AdminAskMaintenace, _nodeId);
    } catch (final NoTransitionException e) {
        final String err = "Cannot transmit resource state of host " + host.getId() + " to " + ResourceState.Maintenance;
        s_logger.debug(err, e);
        throw new CloudRuntimeException(err + e.getMessage());
    }
    ActionEventUtils.onStartedActionEvent(CallContext.current().getCallingUserId(), CallContext.current().getCallingAccountId(), EventTypes.EVENT_MAINTENANCE_PREPARE, "starting maintenance for host " + hostId, true, 0);
    _agentMgr.pullAgentToMaintenance(hostId);
    /* TODO: move below to listener */
    if (host.getType() == Host.Type.Routing) {
        final List<VMInstanceVO> vms = _vmDao.listByHostId(hostId);
        if (vms.size() == 0) {
            return true;
        }
        final List<HostVO> hosts = listAllUpAndEnabledHosts(Host.Type.Routing, host.getClusterId(), host.getPodId(), host.getDataCenterId());
        for (final VMInstanceVO vm : vms) {
            if (hosts == null || hosts.isEmpty() || !answer.getMigrate() || _serviceOfferingDetailsDao.findDetail(vm.getServiceOfferingId(), GPU.Keys.vgpuType.toString()) != null) {
                // Migration is not supported for VGPU Vms so stop them.
                // for the last host in this cluster, stop all the VMs
                _haMgr.scheduleStop(vm, hostId, WorkType.ForceStop);
            } else {
                _haMgr.scheduleMigration(vm);
            }
        }
    }
    return true;
}

Example 5 with MaintainAnswer

use of com.cloud.agent.api.MaintainAnswer in project cloudstack by apache.

the class Agent method processRequest.

protected void processRequest(final Request request, final Link link) {
    boolean requestLogged = false;
    Response response = null;
    try {
        final Command[] cmds = request.getCommands();
        final Answer[] answers = new Answer[cmds.length];
        for (int i = 0; i < cmds.length; i++) {
            final Command cmd = cmds[i];
            Answer answer;
            try {
                if (cmd.getContextParam("logid") != null) {
                    MDC.put("logcontextid", cmd.getContextParam("logid"));
                }
                if (s_logger.isDebugEnabled()) {
                    if (// ensures request is logged only once per method call
                    !requestLogged) {
                        final String requestMsg = request.toString();
                        if (requestMsg != null) {
                            s_logger.debug("Request:" + requestMsg);
                        }
                        requestLogged = true;
                    }
                    s_logger.debug("Processing command: " + cmd.toString());
                }
                if (cmd instanceof CronCommand) {
                    final CronCommand watch = (CronCommand) cmd;
                    scheduleWatch(link, request, (long) watch.getInterval() * 1000, watch.getInterval() * 1000);
                    answer = new Answer(cmd, true, null);
                } else if (cmd instanceof ShutdownCommand) {
                    final ShutdownCommand shutdown = (ShutdownCommand) cmd;
                    s_logger.debug("Received shutdownCommand, due to: " + shutdown.getReason());
                    cancelTasks();
                    if (shutdown.isRemoveHost()) {
                        cleanupAgentZoneProperties();
                    }
                    _reconnectAllowed = false;
                    answer = new Answer(cmd, true, null);
                } else if (cmd instanceof ReadyCommand && ((ReadyCommand) cmd).getDetails() != null) {
                    s_logger.debug("Not ready to connect to mgt server: " + ((ReadyCommand) cmd).getDetails());
                    System.exit(1);
                    return;
                } else if (cmd instanceof MaintainCommand) {
                    s_logger.debug("Received maintainCommand, do not cancel current tasks");
                    answer = new MaintainAnswer((MaintainCommand) cmd);
                } else if (cmd instanceof AgentControlCommand) {
                    answer = null;
                    synchronized (_controlListeners) {
                        for (final IAgentControlListener listener : _controlListeners) {
                            answer = listener.processControlRequest(request, (AgentControlCommand) cmd);
                            if (answer != null) {
                                break;
                            }
                        }
                    }
                    if (answer == null) {
                        s_logger.warn("No handler found to process cmd: " + cmd.toString());
                        answer = new AgentControlAnswer(cmd);
                    }
                } else if (cmd instanceof SetupKeyStoreCommand && ((SetupKeyStoreCommand) cmd).isHandleByAgent()) {
                    answer = setupAgentKeystore((SetupKeyStoreCommand) cmd);
                } else if (cmd instanceof SetupCertificateCommand && ((SetupCertificateCommand) cmd).isHandleByAgent()) {
                    answer = setupAgentCertificate((SetupCertificateCommand) cmd);
                    if (Host.Type.Routing.equals(_resource.getType())) {
                        scheduleServicesRestartTask();
                    }
                } else if (cmd instanceof SetupMSListCommand) {
                    answer = setupManagementServerList((SetupMSListCommand) cmd);
                } else {
                    if (cmd instanceof ReadyCommand) {
                        processReadyCommand(cmd);
                    }
                    _inProgress.incrementAndGet();
                    try {
                        answer = _resource.executeRequest(cmd);
                    } finally {
                        _inProgress.decrementAndGet();
                    }
                    if (answer == null) {
                        s_logger.debug("Response: unsupported command" + cmd.toString());
                        answer = Answer.createUnsupportedCommandAnswer(cmd);
                    }
                }
            } catch (final Throwable th) {
                s_logger.warn("Caught: ", th);
                final StringWriter writer = new StringWriter();
                th.printStackTrace(new PrintWriter(writer));
                answer = new Answer(cmd, false, writer.toString());
            }
            answers[i] = answer;
            if (!answer.getResult() && request.stopOnError()) {
                for (i++; i < cmds.length; i++) {
                    answers[i] = new Answer(cmds[i], false, "Stopped by previous failure");
                }
                break;
            }
        }
        response = new Response(request, answers);
    } finally {
        if (s_logger.isDebugEnabled()) {
            final String responseMsg = response.toString();
            if (responseMsg != null) {
                s_logger.debug(response.toString());
            }
        }
        if (response != null) {
            try {
                link.send(response.toBytes());
            } catch (final ClosedChannelException e) {
                s_logger.warn("Unable to send response: " + response.toString());
            }
        }
    }
}