CloudStack 故障排查汇总-不定期更新-zzjlzx-ChinaUnix博客

工作中经常用到CloudStack，过程中发现的一些故障排查分享出来，希望可以帮到大家。

一、添加主机失败

现象1：

[root@mgmt ~]# tail -f /var/log/cloudstack/management/management-server.log

2014-02-28 11:05:32,172 DEBUG [kvm.discoverer.LibvirtServerDiscoverer] (catalina-exec-22:null) Timeout, to wait for the host connecting to mgt svr, assuming it is failed

2014-02-28 11:05:32,205 WARN [cloud.resource.ResourceManagerImpl] (catalina-exec-22:null) Unable tofind the server resources at

2014-02-28 11:05:32,220 INFO [utils.exception.CSExceptionErrorCode] (catalina-exec-22:null) Could notfind exception: com.cloud.exception.DiscoveryException in error code list for exceptions

2014-02-28 11:05:32,220 WARN [admin.host.AddHostCmd] (catalina-exec-22:null) Exception:

com.cloud.exception.DiscoveryException: Unable to add the host

at com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:798)

at com.cloud.resource.ResourceManagerImpl.discoverHosts(ResourceManagerImpl.java:590)

at org.apache.cloudstack.api.command.admin.host.AddHostCmd.execute(AddHostCmd.java:143)

at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:158)

at com.cloud.api.ApiServer.queueCommand(ApiServer.java:514)

at com.cloud.api.ApiServer.handleRequest(ApiServer.java:372)

at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:305)

at com.cloud.api.ApiServlet.doPost(ApiServlet.java:71)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)

at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889)

at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:721)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2268)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)

at java.lang.Thread.run(Thread.java:679)

2014-02-28 11:05:32,222 INFO [cloud.api.ApiServer] (catalina-exec-22:null) Unable to add the host

2014-02-28 11:05:32,224 DEBUG [cloud.api.ApiServlet] (catalina-exec-22:null) ===END=== 192.168.151.234 -- POST command=addHost&response=json&sessionkey=GEI3EIOONoV5RG9Mcs4xcdx31oc%3D

现象2：

1 2	[root@kvm01 agent]# /etc/init.d/cloudstack-agent status ##查看kvm主机的cloudstack-agent服务状态 cloudstack-agent dead but subsys locked

现象3：

[root@kvm01 agent]# cat /var/log/cloudstack/agent/agent.log ##查看kvm主机的agent.log日志中的异常

ERROR [cloud.agent.AgentShell] (main:null) Unable to start agent: NO HVM support on this machine, please make sure: 1. VT/SVM is supported by your CPU, or is enabled inBIOS. 2. kvm modules are loaded (kvm, kvm_amd|kvm_intel)

解决方法：

1.必须安装虚拟化套件支持

1	[root@kvm01 agent]# yum -y groupinstall 'Virtualization' 'Virtualization Client' 'Virtualzation Platform' 'Virtualization Tools'

2.确认kvm模块已经被正确加载

[root@kvm01 ~]# lsmod | grep kvm

kvm_intel 52570 0

kvm 314739 1 kvm_intel

如果没有任何信息，请使用如下命令加载kvm模块：

1 2	[root@kvm01 ~]# modprobe kvm_intel ##intel平台 [root@kvm01 ~]# modprobe kvm_amd ##amd平台

3.再次添加。

福利：

关于添加主机过程中的错误，千奇百怪，而java的报错又。。。教给大家一个小技巧：

当添加主机报错，日志中有没有明确原因时，可以手动在agent上面执行添加主机的命令。具体添加主机的命令可以在management的日志中获得：

[root@localhost management]# cat /var/log/cloudstack/management/management-server.log | grep cloudstack-setup-agent

2014-03-13 09:56:17,758 DEBUG [utils.ssh.SSHCmdHelper] (catalina-exec-11:null) Executing cmd: cloudstack-setup-agent -m 192.168.153.28 -z 2 -p 2 -c 2 -g 0d21492f-9565-329d-9a26-0c85f6d39d12 -a --pubNic=cloud0 --prvNic=cloud0 --guestNic=cloud0

2014-03-13 09:56:52,775 DEBUG [utils.ssh.SSHCmdHelper] (catalina-exec-11:null) cloudstack-setup-agent -m 192.168.153.28 -z 2 -p 2 -c 2 -g 0d21492f-9565-329d-9a26-0c85f6d39d12 -a --pubNic=cloud0 --prvNic=cloud0 --guestNic=cloud0 output:CloudStack Agent setup is done!

2014-03-13 11:12:22,455 DEBUG [utils.ssh.SSHCmdHelper] (catalina-exec-12:null) Executing cmd: cloudstack-setup-agent -m 192.168.153.28 -z 3 -p 3 -c 3 -g 0d21492f-9565-329d-9a26-0c85f6d39d12 -a --pubNic=cloud0 --prvNic=cloud0 --guestNic=cloud0

2014-03-13 11:12:57,267 DEBUG [utils.ssh.SSHCmdHelper] (catalina-exec-12:null) cloudstack-setup-agent -m 192.168.153.28 -z 3 -p 3 -c 3 -g 0d21492f-9565-329d-9a26-0c85f6d39d12 -a --pubNic=cloud0 --prvNic=cloud0 --guestNic=cloud0 output:CloudStack Agent setup is done!

比如我上面的例子,得到如下命令，并在agent上面执行：

[root@kvm01 ~]# cloudstack-setup-agent -m 192.168.153.28 -z 3 -p 3 -c 3 -g 0d21492f-9565-329d-9a26-0c85f6d39d12 -a --pubNic=cloud0 --prvNic=cloud0 --guestNic=cloud0

Starting to configure your system:

Configure Cgroup ... [OK]

Configure SElinux ... [OK]

Configure Network ... [OK]

Configure Libvirt ... [OK]

Configure Firewall ... [OK]

Configure Nfs ... [OK]

Configure cloudAgent ... [OK]

CloudStack Agent setup is done!

[root@kvm01 ~]#

这个过程中，如果报错，就很轻易就能判断出问题是出在哪一步。

另外，上面cloudstack-setup-agent命令的参数如下，根据自己的情况改写：

[root@dbserver ~]# cloudstack-setup-agent -h

Usage: cloudstack-setup-agent [options]

Options:

-h, --help show this help message and exit

-a auto mode

-m MGT, --host=MGT Management server hostname or IP-Address

-z ZONE, --zone=ZONE zone id

-p POD, --pod=POD pod id

-c CLUSTER, --cluster=CLUSTER

cluster id

-g GUID, --guid=GUID guid

--pubNic=PUBNIC Public traffic interface

--prvNic=PRVNIC Private traffic interface

--guestNic=GUESTNIC Guest traffic interface

至于参数后面具体的值，可以从agent主机的/etc/cloudstack/agent/agent.properties中获得：

[root@kvm01 ~]# cat /etc/cloudstack/agent/agent.properties

#Storage

#Thu Mar 13 11:23:48 CST 2014

guest.network.device=cloud0

workers=5

private.network.device=cloud0

port=8250

resource=com.cloud.hypervisor.kvm.resource.LibvirtComputingResource

pod=3

zone=3

guid=0d21492f-9565-329d-9a26-0c85f6d39d12

public.network.device=cloud0

cluster=3

local.storage.uuid=ac70655b-f452-4d14-a1a1-2a5eebc4bb01

domr.scripts.dir=scripts/network/domr/kvm

LibvirtComputingResource.id=0

host=192.168.153.28

持续更新中。。。