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

Example 1 with ShutdownCommand

use of com.cloud.agent.api.ShutdownCommand 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 ShutdownCommand

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

the class Agent method stop.

public void stop(final String reason, final String detail) {
    s_logger.info("Stopping the agent: Reason = " + reason + (detail != null ? ": Detail = " + detail : ""));
    if (_connection != null) {
        final ShutdownCommand cmd = new ShutdownCommand(reason, detail);
        try {
            if (_link != null) {
                final Request req = new Request(_id != null ? _id : -1, -1, cmd, false);
                _link.send(req.toBytes());
            }
        } catch (final ClosedChannelException e) {
            s_logger.warn("Unable to send: " + cmd.toString());
        } catch (final Exception e) {
            s_logger.warn("Unable to send: " + cmd.toString() + " due to exception: ", e);
        }
        s_logger.debug("Sending shutdown to management server");
        try {
            Thread.sleep(1000);
        } catch (final InterruptedException e) {
            s_logger.debug("Who the heck interrupted me here?");
        }
        _connection.stop();
        _connection = null;
    }
    if (_resource != null) {
        _resource.stop();
        _resource = null;
    }
    _ugentTaskPool.shutdownNow();
}

Example 3 with ShutdownCommand

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

the class Agent method stop.

public void stop(final String reason, final String detail) {
    s_logger.info("Stopping the agent: Reason = " + reason + (detail != null ? ": Detail = " + detail : ""));
    if (_connection != null) {
        final ShutdownCommand cmd = new ShutdownCommand(reason, detail);
        try {
            if (_link != null) {
                Request req = new Request((_id != null ? _id : -1), -1, cmd, false);
                _link.send(req.toBytes());
            }
        } catch (final ClosedChannelException e) {
            s_logger.warn("Unable to send: " + cmd.toString());
        } catch (Exception e) {
            s_logger.warn("Unable to send: " + cmd.toString() + " due to exception: ", e);
        }
        s_logger.debug("Sending shutdown to management server");
        try {
            Thread.sleep(1000);
        } catch (final InterruptedException e) {
            s_logger.debug("Who the heck interrupted me here?");
        }
        _connection.stop();
        _connection = null;
    }
    if (_resource != null) {
        _resource.stop();
        _resource = null;
    }
    _ugentTaskPool.shutdownNow();
}

Example 4 with ShutdownCommand

use of com.cloud.agent.api.ShutdownCommand 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();
                    _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");
                    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) {
                        s_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) {
                        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());
            }
        }
    }
}

Example 5 with ShutdownCommand

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

the class LibvirtServerDiscoverer method deleteHost.

@Override
public DeleteHostAnswer deleteHost(HostVO host, boolean isForced, boolean isForceDeleteStorage) throws UnableDeleteHostException {
    if (host.getType() != Host.Type.Routing || (host.getHypervisorType() != HypervisorType.KVM && host.getHypervisorType() != HypervisorType.LXC)) {
        return null;
    }
    _resourceMgr.deleteRoutingHost(host, isForced, isForceDeleteStorage);
    try {
        ShutdownCommand cmd = new ShutdownCommand(ShutdownCommand.DeleteHost, null);
        _agentMgr.send(host.getId(), cmd);
    } catch (AgentUnavailableException e) {
        s_logger.warn("Sending ShutdownCommand failed: ", e);
    } catch (OperationTimedoutException e) {
        s_logger.warn("Sending ShutdownCommand failed: ", e);
    }
    return new DeleteHostAnswer(true);
}