[jira] [Updated] (CLOUDSTACK-6475) [Automation] communication between cloudstack agent and MS disconnecting continuously

2014-04-24 Thread Kishan Kavala (JIRA) 

 [ 
https://issues.apache.org/jira/browse/CLOUDSTACK-6475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Kishan Kavala updated CLOUDSTACK-6475:
--

Priority: Major  (was: Blocker)

 [Automation] communication between cloudstack agent and MS disconnecting 
 continuously  
 ---

 Key: CLOUDSTACK-6475
 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6475
 Project: CloudStack
  Issue Type: Bug
  Security Level: Public(Anyone can view this level - this is the 
 default.) 
  Components: KVM
Affects Versions: 4.4.0
 Environment: RHEL 6.3
Reporter: Rayees Namathponnan
Assignee: Kishan Kavala
 Fix For: 4.4.0

 Attachments: Agent_log.rar, management-server.rar


 This issue is observed during automation, run.
 communication between cloudstack agent and ms getting disconnected 
 continuously;  observed below error in agent log
  2014-04-22 04:08:47,867 INFO  [cloud.agent.Agent] (AgentShutdownThread:null) 
 Stopping the agent: Reason = sig.kill
 2014-04-22 04:10:41,456 INFO  [cloud.agent.AgentShell] (main:null) Agent 
 started
 2014-04-22 04:10:41,500 INFO  [cloud.agent.AgentShell] (main:null) 
 Implementation Version is 4.4.0-SNAPSHOT
 2014-04-22 04:10:41,502 INFO  [cloud.agent.AgentShell] (main:null) 
 agent.properties found at /etc/cloudstack/agent/agent.properties
 2014-04-22 04:10:41,551 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to using properties file for storage
 2014-04-22 04:10:41,552 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to the constant time backoff algorithm
 2014-04-22 04:10:41,572 INFO  [cloud.utils.LogUtils] (main:null) log4j 
 configuration found at /etc/cloudstack/agent/log4j-cloud.xml
 2014-04-22 04:10:41,722 INFO  [cloud.agent.Agent] (main:null) id is 0
 2014-04-22 04:10:42,501 INFO  [kvm.resource.LibvirtComputingResource] 
 (main:null) No libvirt.vif.driver specified. Defaults to BridgeVifDriver.
 2014-04-22 04:10:42,590 INFO  [cloud.agent.Agent] (main:null) Agent [id = 0 : 
 type = LibvirtComputingResource : zone = 1 : pod = 1 : workers = 5 : host = 
 10.223.49.195 : port = 8250
 2014-04-22 04:10:42,664 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connecting to 10.223.49.195:8250
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 SSL: Handshake done
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connected to 10.223.49.195:8250
 2014-04-22 04:10:42,941 WARN  [kvm.resource.LibvirtComputingResource] 
 (Agent-Handler-1:null) Could not read cpuinfo_max_freq
 2014-04-22 04:10:43,158 INFO  [cloud.serializer.GsonHelper] 
 (Agent-Handler-1:null) Default Builder inited.
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Proccess agent startup answer, agent id = 0
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) Set 
 agent id 0
 2014-04-22 04:10:43,233 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Startup Response Received: agent id = 0
 2014-04-22 04:11:40,925 INFO  [cloud.agent.Agent] (Agent-Handler-1:null) Lost 
 connection to the server. Dealing with the remaining commands...
 2014-04-22 04:11:42,352 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 0
 2014-04-22 04:11:42,368 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 1
 2014-04-22 04:11:42,383 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 2
 2014-04-22 04:11:42,398 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 3
 2014-04-22 04:11:42,413 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 4
 2014-04-22 04:11:42,414 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error; reboot the host
 2014-04-22 04:11:42,472 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output

[jira] [Updated] (CLOUDSTACK-6475) [Automation] communication between cloudstack agent and MS disconnecting continuously

2014-04-23 Thread Ram Ganesh (JIRA) 

 [ 
https://issues.apache.org/jira/browse/CLOUDSTACK-6475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ram Ganesh updated CLOUDSTACK-6475:
---

Assignee: Kishan Kavala

 [Automation] communication between cloudstack agent and MS disconnecting 
 continuously  
 ---

 Key: CLOUDSTACK-6475
 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6475
 Project: CloudStack
  Issue Type: Bug
  Security Level: Public(Anyone can view this level - this is the 
 default.) 
  Components: KVM
Affects Versions: 4.4.0
 Environment: RHEL 6.3
Reporter: Rayees Namathponnan
Assignee: Kishan Kavala
Priority: Blocker
 Fix For: 4.4.0

 Attachments: Agent_log.rar, management-server.rar


 This issue is observed during automation, run.
 communication between cloudstack agent and ms getting disconnected 
 continuously;  observed below error in agent log
  2014-04-22 04:08:47,867 INFO  [cloud.agent.Agent] (AgentShutdownThread:null) 
 Stopping the agent: Reason = sig.kill
 2014-04-22 04:10:41,456 INFO  [cloud.agent.AgentShell] (main:null) Agent 
 started
 2014-04-22 04:10:41,500 INFO  [cloud.agent.AgentShell] (main:null) 
 Implementation Version is 4.4.0-SNAPSHOT
 2014-04-22 04:10:41,502 INFO  [cloud.agent.AgentShell] (main:null) 
 agent.properties found at /etc/cloudstack/agent/agent.properties
 2014-04-22 04:10:41,551 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to using properties file for storage
 2014-04-22 04:10:41,552 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to the constant time backoff algorithm
 2014-04-22 04:10:41,572 INFO  [cloud.utils.LogUtils] (main:null) log4j 
 configuration found at /etc/cloudstack/agent/log4j-cloud.xml
 2014-04-22 04:10:41,722 INFO  [cloud.agent.Agent] (main:null) id is 0
 2014-04-22 04:10:42,501 INFO  [kvm.resource.LibvirtComputingResource] 
 (main:null) No libvirt.vif.driver specified. Defaults to BridgeVifDriver.
 2014-04-22 04:10:42,590 INFO  [cloud.agent.Agent] (main:null) Agent [id = 0 : 
 type = LibvirtComputingResource : zone = 1 : pod = 1 : workers = 5 : host = 
 10.223.49.195 : port = 8250
 2014-04-22 04:10:42,664 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connecting to 10.223.49.195:8250
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 SSL: Handshake done
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connected to 10.223.49.195:8250
 2014-04-22 04:10:42,941 WARN  [kvm.resource.LibvirtComputingResource] 
 (Agent-Handler-1:null) Could not read cpuinfo_max_freq
 2014-04-22 04:10:43,158 INFO  [cloud.serializer.GsonHelper] 
 (Agent-Handler-1:null) Default Builder inited.
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Proccess agent startup answer, agent id = 0
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) Set 
 agent id 0
 2014-04-22 04:10:43,233 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Startup Response Received: agent id = 0
 2014-04-22 04:11:40,925 INFO  [cloud.agent.Agent] (Agent-Handler-1:null) Lost 
 connection to the server. Dealing with the remaining commands...
 2014-04-22 04:11:42,352 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 0
 2014-04-22 04:11:42,368 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 1
 2014-04-22 04:11:42,383 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 2
 2014-04-22 04:11:42,398 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 3
 2014-04-22 04:11:42,413 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 4
 2014-04-22 04:11:42,414 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error; reboot the host
 2014-04-22 04:11:42,472 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error:

[jira] [Updated] (CLOUDSTACK-6475) [Automation] communication between cloudstack agent and MS disconnecting continuously

2014-04-22 Thread Rayees Namathponnan (JIRA) 

 [ 
https://issues.apache.org/jira/browse/CLOUDSTACK-6475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rayees Namathponnan updated CLOUDSTACK-6475:


Attachment: management-server.rar

 [Automation] communication between cloudstack agent and MS disconnecting 
 continuously  
 ---

 Key: CLOUDSTACK-6475
 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6475
 Project: CloudStack
  Issue Type: Bug
  Security Level: Public(Anyone can view this level - this is the 
 default.) 
  Components: KVM
Affects Versions: 4.4.0
 Environment: RHEL 6.3
Reporter: Rayees Namathponnan
Priority: Blocker
 Fix For: 4.4.0

 Attachments: management-server.rar


 This issue is observed during automation, run.
 communication between cloudstack agent and ms getting disconnected 
 continuously;  observed below error in agent log
  2014-04-22 04:08:47,867 INFO  [cloud.agent.Agent] (AgentShutdownThread:null) 
 Stopping the agent: Reason = sig.kill
 2014-04-22 04:10:41,456 INFO  [cloud.agent.AgentShell] (main:null) Agent 
 started
 2014-04-22 04:10:41,500 INFO  [cloud.agent.AgentShell] (main:null) 
 Implementation Version is 4.4.0-SNAPSHOT
 2014-04-22 04:10:41,502 INFO  [cloud.agent.AgentShell] (main:null) 
 agent.properties found at /etc/cloudstack/agent/agent.properties
 2014-04-22 04:10:41,551 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to using properties file for storage
 2014-04-22 04:10:41,552 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to the constant time backoff algorithm
 2014-04-22 04:10:41,572 INFO  [cloud.utils.LogUtils] (main:null) log4j 
 configuration found at /etc/cloudstack/agent/log4j-cloud.xml
 2014-04-22 04:10:41,722 INFO  [cloud.agent.Agent] (main:null) id is 0
 2014-04-22 04:10:42,501 INFO  [kvm.resource.LibvirtComputingResource] 
 (main:null) No libvirt.vif.driver specified. Defaults to BridgeVifDriver.
 2014-04-22 04:10:42,590 INFO  [cloud.agent.Agent] (main:null) Agent [id = 0 : 
 type = LibvirtComputingResource : zone = 1 : pod = 1 : workers = 5 : host = 
 10.223.49.195 : port = 8250
 2014-04-22 04:10:42,664 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connecting to 10.223.49.195:8250
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 SSL: Handshake done
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connected to 10.223.49.195:8250
 2014-04-22 04:10:42,941 WARN  [kvm.resource.LibvirtComputingResource] 
 (Agent-Handler-1:null) Could not read cpuinfo_max_freq
 2014-04-22 04:10:43,158 INFO  [cloud.serializer.GsonHelper] 
 (Agent-Handler-1:null) Default Builder inited.
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Proccess agent startup answer, agent id = 0
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) Set 
 agent id 0
 2014-04-22 04:10:43,233 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Startup Response Received: agent id = 0
 2014-04-22 04:11:40,925 INFO  [cloud.agent.Agent] (Agent-Handler-1:null) Lost 
 connection to the server. Dealing with the remaining commands...
 2014-04-22 04:11:42,352 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 0
 2014-04-22 04:11:42,368 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 1
 2014-04-22 04:11:42,383 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 2
 2014-04-22 04:11:42,398 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 3
 2014-04-22 04:11:42,413 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 4
 2014-04-22 04:11:42,414 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error; reboot the host
 2014-04-22 04:11:42,472 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error,

[jira] [Updated] (CLOUDSTACK-6475) [Automation] communication between cloudstack agent and MS disconnecting continuously

2014-04-22 Thread Rayees Namathponnan (JIRA) 

 [ 
https://issues.apache.org/jira/browse/CLOUDSTACK-6475?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Rayees Namathponnan updated CLOUDSTACK-6475:


Attachment: Agent_log.rar

 [Automation] communication between cloudstack agent and MS disconnecting 
 continuously  
 ---

 Key: CLOUDSTACK-6475
 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6475
 Project: CloudStack
  Issue Type: Bug
  Security Level: Public(Anyone can view this level - this is the 
 default.) 
  Components: KVM
Affects Versions: 4.4.0
 Environment: RHEL 6.3
Reporter: Rayees Namathponnan
Priority: Blocker
 Fix For: 4.4.0

 Attachments: Agent_log.rar, management-server.rar


 This issue is observed during automation, run.
 communication between cloudstack agent and ms getting disconnected 
 continuously;  observed below error in agent log
  2014-04-22 04:08:47,867 INFO  [cloud.agent.Agent] (AgentShutdownThread:null) 
 Stopping the agent: Reason = sig.kill
 2014-04-22 04:10:41,456 INFO  [cloud.agent.AgentShell] (main:null) Agent 
 started
 2014-04-22 04:10:41,500 INFO  [cloud.agent.AgentShell] (main:null) 
 Implementation Version is 4.4.0-SNAPSHOT
 2014-04-22 04:10:41,502 INFO  [cloud.agent.AgentShell] (main:null) 
 agent.properties found at /etc/cloudstack/agent/agent.properties
 2014-04-22 04:10:41,551 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to using properties file for storage
 2014-04-22 04:10:41,552 INFO  [cloud.agent.AgentShell] (main:null) Defaulting 
 to the constant time backoff algorithm
 2014-04-22 04:10:41,572 INFO  [cloud.utils.LogUtils] (main:null) log4j 
 configuration found at /etc/cloudstack/agent/log4j-cloud.xml
 2014-04-22 04:10:41,722 INFO  [cloud.agent.Agent] (main:null) id is 0
 2014-04-22 04:10:42,501 INFO  [kvm.resource.LibvirtComputingResource] 
 (main:null) No libvirt.vif.driver specified. Defaults to BridgeVifDriver.
 2014-04-22 04:10:42,590 INFO  [cloud.agent.Agent] (main:null) Agent [id = 0 : 
 type = LibvirtComputingResource : zone = 1 : pod = 1 : workers = 5 : host = 
 10.223.49.195 : port = 8250
 2014-04-22 04:10:42,664 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connecting to 10.223.49.195:8250
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 SSL: Handshake done
 2014-04-22 04:10:42,920 INFO  [utils.nio.NioClient] (Agent-Selector:null) 
 Connected to 10.223.49.195:8250
 2014-04-22 04:10:42,941 WARN  [kvm.resource.LibvirtComputingResource] 
 (Agent-Handler-1:null) Could not read cpuinfo_max_freq
 2014-04-22 04:10:43,158 INFO  [cloud.serializer.GsonHelper] 
 (Agent-Handler-1:null) Default Builder inited.
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Proccess agent startup answer, agent id = 0
 2014-04-22 04:10:43,227 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) Set 
 agent id 0
 2014-04-22 04:10:43,233 INFO  [cloud.agent.Agent] (Agent-Handler-2:null) 
 Startup Response Received: agent id = 0
 2014-04-22 04:11:40,925 INFO  [cloud.agent.Agent] (Agent-Handler-1:null) Lost 
 connection to the server. Dealing with the remaining commands...
 2014-04-22 04:11:42,352 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 0
 2014-04-22 04:11:42,368 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 1
 2014-04-22 04:11:42,383 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 2
 2014-04-22 04:11:42,398 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 3
 2014-04-22 04:11:42,413 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error, retry: 4
 2014-04-22 04:11:42,414 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output error; reboot the host
 2014-04-22 04:11:42,472 WARN  [kvm.resource.KVMHAMonitor] (Thread-4:null) 
 write heartbeat failed: 
 /usr/share/cloudstack-common/scripts/vm/hypervisor/kvm/kvmheartbeat.sh: line 
 131: echo: write error: Input/output