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https://issues.apache.org/jira/browse/CLOUDSTACK-205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463920#comment-13463920
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Marcus Sorensen commented on CLOUDSTACK-205:
--------------------------------------------
Hmm, on my Cent 6.3 host the qemu-kvm package includes this in the post install
script:
# load kvm modules now, so we can make sure no reboot is needed.
# If there's already a kvm module installed, we don't mess with it
sh /etc/sysconfig/modules/kvm.modules
So if you're installing the agent, and the agent pulls in qemu-kvm as a
dependency, it should be loading these for you. I suppose there is a chance
that something is going wrong with the command itself, rather than the modules
missing. If you can reproduce the issue I'd be interested to know what the
"lsmod|grep kvm" output looks like on the host after your step 2. If the
modules are missing, do a "modprobe kvm; modprobe kvm-amd; modprobe kvm-intel;"
and see if the host gets added successfully without reboot afterward.
> Reboot of the KVM host (rhel 6.3) is required before adding it to Management
> server in ASF 4.0
> -----------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-205
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-205
> Project: CloudStack
> Issue Type: Bug
> Components: Install and Setup, KVM, Management Server
> Affects Versions: pre-4.0.0
> Environment: Management server : Rhel 6.3
> Host : KVM (Rhel 6.3)
> ASF build :
> http://jenkins.cloudstack.org/job/build-4.0-rhel63/163/artifact/CloudStack-oss-4.0.0-163.tar.bz2
> Reporter: Abhinav Roy
> Fix For: pre-4.0.0
>
> Attachments: agent.log, api-server.log, management-server.log
>
>
> Steps :
> ==========================
> 1. Deploy an advanced zone on a fresh CS setup.
> 2. Install agent on a freshly configured KVM host (Rhel 6.3)
> 3. Add host to the management server.
> Expected Behaviour :
> ==========================
> The KVM host should be added successfully to the MS.
> Observed Behaviour :
> ==========================
> While adding a KVM host (Rhel 6.3) to the management server we are getting
> this error and the addition of host fails:
>
> 2012-09-25 12:35:14,214 INFO [cloud.resource.ResourceManagerImpl]
> (catalina-exec-17:null) Trying to add a new host athttp://10.102.125.13 in
> data center 1
> 2012-09-25 12:35:14,594 DEBUG [utils.ssh.SSHCmdHelper]
> (catalina-exec-17:null) Executing cmd: lsmod|grep kvm
> 2012-09-25 12:35:16,759 DEBUG [utils.ssh.SSHCmdHelper]
> (catalina-exec-17:null) Executing cmd: lsmod|grep kvm
> 2012-09-25 12:35:18,818 DEBUG [utils.ssh.SSHCmdHelper]
> (catalina-exec-17:null) Executing cmd: lsmod|grep kvm
> 2012-09-25 12:35:20,875 DEBUG [kvm.discoverer.KvmServerDiscoverer]
> (catalina-exec-17:null) It's not a KVM enabled machine
> 2012-09-25 12:35:20,876 WARN [cloud.resource.ResourceManagerImpl]
> (catalina-exec-17:null) Unable to find the server resources at
> http://10.102.125.13
> 2012-09-25 12:35:20,877 WARN [api.commands.AddHostCmd]
> (catalina-exec-17:null) Exception:
> com.cloud.exception.DiscoveryException: Unable to add the host
> at
> com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:737)
> at
> com.cloud.resource.ResourceManagerImpl.discoverHosts(ResourceManagerImpl.java:544)
> at com.cloud.api.commands.AddHostCmd.execute(AddHostCmd.java:140)
> at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:138)
> at com.cloud.api.ApiServer.queueCommand(ApiServer.java:543)
> at com.cloud.api.ApiServer.handleRequest(ApiServer.java:422)
> at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:304)
> at com.cloud.api.ApiServlet.doGet(ApiServlet.java:63)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
> 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)
> 2012-09-25 12:35:20,879 WARN [cloud.api.ApiDispatcher]
> (catalina-exec-17:null) class com.cloud.api.ServerApiException : Unable to
> add the host
> 2012-09-25 12:35:30,140 DEBUG [cloud.consoleproxy.ConsoleProxyManagerImpl]
> (consoleproxy-1:null) Skip capacity scan due to there is no Primary Storage
> UPintenance mode
> 2012-09-25 12:35:30,667 DEBUG
> [network.router.VirtualNetworkApplianceManagerImpl]
> (RouterStatusMonitor-1:null) Found 0 routers.
> 2012-09-25 12:35:37,395 INFO [cloud.resource.ResourceManagerImpl]
> (catalina-exec-19:null) Trying to add a new host athttp://10.102.125.13 in
> data center 1
> 2012-09-25 12:35:37,543 DEBUG [utils.ssh.SSHCmdHelper]
> (catalina-exec-19:null) Executing cmd: lsmod|grep kvm
> 2012-09-25 12:35:39,694 DEBUG [utils.ssh.SSHCmdHelper]
> (catalina-exec-19:null) Executing cmd: lsmod|grep kvm
> 2012-09-25 12:35:41,751 DEBUG [utils.ssh.SSHCmdHelper]
> (catalina-exec-19:null) Executing cmd: lsmod|grep kvm
> 2012-09-25 12:35:43,807 DEBUG [kvm.discoverer.KvmServerDiscoverer]
> (catalina-exec-19:null) It's not a KVM enabled machine
> 2012-09-25 12:35:43,807 WARN [cloud.resource.ResourceManagerImpl]
> (catalina-exec-19:null) Unable to find the server resources at
> http://10.102.125.13
> 2012-09-25 12:35:43,808 WARN [api.commands.AddHostCmd]
> (catalina-exec-19:null) Exception:
> com.cloud.exception.DiscoveryException: Unable to add the host
> at
> com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:737)
> at
> com.cloud.resource.ResourceManagerImpl.discoverHosts(ResourceManagerImpl.java:544)
> at com.cloud.api.commands.AddHostCmd.execute(AddHostCmd.java:140)
> at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:138)
> at com.cloud.api.ApiServer.queueCommand(ApiServer.java:543)
> at com.cloud.api.ApiServer.handleRequest(ApiServer.java:422)
> at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:304)
> at com.cloud.api.ApiServlet.doGet(ApiServlet.java:63)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
> 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)
> 2012-09-25 12:35:43,810 WARN [cloud.api.ApiDispatcher]
> (catalina-exec-19:null) class com.cloud.api.ServerApiException : Unable to
> add the host
> 2012-09-25 12:35:44,697 DEBUG [cloud.server.StatsCollector]
> (StatsCollector-2:null) HostStatsCollector is running...
> 2012-09-25 12:35:44,707 DEBUG [cloud.server.StatsCollector]
> (StatsCollector-3:null) VmStatsCollector is running...
> 2012-09-25 12:35:44,708 DEBUG [cloud.server.StatsCollector]
> (StatsCollector-1:null) StorageCollector is running...
>
>
>
> But when we reboot the host and add again then the host gets added and we
> don't see any such error. We have seen this consistently with ASF builds.
> Also, this kind of behaviour is not seen when the KVM host is UBUNTU. In that
> case we don't need to reboot the host.
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