Examples of com.cloud.exception.ConnectionException

com.cloud.exception.ConnectionException
ConnectionException is thrown by Listeners while processing the startup command. There are two uses for this exception and they are distinguished 1. If the flag is set to true, there is an unexpected error during the processing. Upon receiving this exception, the AgentManager will immediately place the agent under alert. When the function to enable to disable the agent, the agent is disabled. should be disconnected and reconnected to "refresh" all resource information. This is useful when the Listener needed to perform setup on the agent and decided it is best to flush connection and reconnect. situation where it keeps throwing ConnectionException.

            if (answer != null && answer.getResult()) {
                host.setSetup(true);
                host.setLastPinged((System.currentTimeMillis()>>10) - 5 * 60 );
                _hostDao.update(host.getId(), host);
                if ( answer.needReconnect() ) {
                    throw new ConnectionException(false, "Reinitialize agent after setup.");
                }
                return;
            } else {
                s_logger.warn("Unable to setup agent " + agentId + " due to " + ((answer != null)?answer.getDetails():"return null"));
            }
        } catch (AgentUnavailableException e) {
            s_logger.warn("Unable to setup agent " + agentId + " because it became unavailable.", e);
        } catch (OperationTimedoutException e) {
            s_logger.warn("Unable to setup agent " + agentId + " because it timed out", e);
        }
        throw new ConnectionException(true, "Reinitialize agent after setup.");
    }

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    public boolean processInitialConnect(StartupCommand[] cmd)
            throws ConnectionException {
        try {
            authorizeAgent(cmd);
        } catch (AgentAuthnException e) {
            throw new ConnectionException(true, "Failed to authenticate/authorize", e);
        }
        s_logger.debug("Authorized agent with guid " + cmd[0].getGuid());
        return false;//so that the next host creator can process it
    }

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        CheckNetworkAnswer answer = (CheckNetworkAnswer)_agentMgr.easySend(hostId, nwCmd);


        if (answer == null) {
            s_logger.warn("Unable to get an answer to the CheckNetworkCommand from agent:" + host.getId());
            throw new ConnectionException(true, "Unable to get an answer to the CheckNetworkCommand from agent: " + host.getId());
        }


        if (!answer.getResult()) {
            s_logger.warn("Unable to setup agent " + hostId + " due to " + ((answer != null) ? answer.getDetails() : "return null"));
            String msg = "Incorrect Network setup on agent, Reinitialize agent after network names are setup, details : " + answer.getDetails();
            _alertMgr.sendAlert(AlertManager.AlertType.ALERT_TYPE_HOST, dcId, host.getPodId(), msg, msg);
            throw new ConnectionException(true, msg);
        } else {
            if (answer.needReconnect()) {
                throw new ConnectionException(false, "Reinitialize agent after network setup.");
            }
            if (s_logger.isDebugEnabled()) {
                s_logger.debug("Network setup is correct on Agent");
            }
            return;

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                            s_logger.warn("Unable to stop a VM due to " + answer.getDetails());
                            error = true;
                        }
                    }
                    if (error) {
                        throw new ConnectionException(true, "Unable to stop VMs");
                    }
                } catch (final AgentUnavailableException e) {
                    s_logger.warn("Agent is unavailable now", e);
                    throw new ConnectionException(true, "Unable to sync", e);
                } catch (final OperationTimedoutException e) {
                    s_logger.warn("Agent is unavailable now", e);
                    throw new ConnectionException(true, "Unable to sync", e);
                }
            }


        }
    }

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            if (answer != null && answer.getResult()) {
                host.setSetup(true);
                host.setLastPinged((System.currentTimeMillis()>>10) - 5 * 60 );
                _hostDao.update(host.getId(), host);
                if ( answer.needReconnect() ) {
                    throw new ConnectionException(false, "Reinitialize agent after setup.");
                }
                return;
            } else {
                s_logger.warn("Unable to setup agent " + agentId + " due to " + ((answer != null)?answer.getDetails():"return null"));
            }
        } catch (AgentUnavailableException e) {
            s_logger.warn("Unable to setup agent " + agentId + " because it became unavailable.", e);
        } catch (OperationTimedoutException e) {
            s_logger.warn("Unable to setup agent " + agentId + " because it timed out", e);
        }
        throw new ConnectionException(true, "Reinitialize agent after setup.");
    }

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