Re: 关于安装devcloud 的问题
检查一下你的环境变量 MAVEN_OPTS 看看这个变量里面有没有指定JAVA虚拟机内存大小,即制定Xmx 和MaxPermSize大小,一般指定了Java虚拟机内存大小的MAVEN_OPTS参数是这样的: MAVEN_OPTS=-Xmx1024m -XX:MaxPermSize=500m -Xdebug -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n 在 2013年9月5日上午11:44,Liu,Lin liulin0...@ufl.edu写道: 请问一下,我在安装devcloud的时候,到了: mvn -pl client jetty:run 这一步。可是总有报错,说runoutofmemory:**PermGen Space.(附了截屏)。我在vm的setting 里system的base memory 里改了,但还是不管用。请问应该怎么解决呢。 谢谢
Re: 请问主存储的大小最大可以为多少?
我认为问题出在这里: 更新存储的时候 available_bytes=-184549376 注意后面是一个负数,字面理解应该是存储的“有效字节数”不应该是一个负数啊!况且按照表结构的定义也是这样,该字段是无符号的bigint,其范围是0~ 18446744073709551615 2013/9/5 WXR 474745...@qq.com 今天我在添加一个9T(9829107105792)大小主存储时,出现报错,看提示是操作的数字超过了storage_pool表的available_bytes字段的范围。 不过我看数据库里这个字段的类型是bigint,应该是能够表示足够大的范围。 请问cloudstack可以添加的主存储大小范围在多少呢,我遇到的这个问题是不是容量大小超过限制导致的? 具体的日志内容如下: 2013-09-05 10:02:02,042 DEBUG [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Adding pool data to host 11 2013-09-05 10:02:02,045 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Sending { Cmd , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 100011, [{ModifyStoragePoolCommand:{add:true,pool:{id:202,uuid:c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,host:192.168.183.2,path:/data,port:2049,type:NetworkFilesystem},localPath:/mnt//c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (AgentManager-Handler-12:null) Seq 11-926745485: Processing: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, [{ModifyStoragePoolAnswer:{poolInfo:{host:192.168.183.2,localPath:/mnt//c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,hostPath:/data,poolType:NetworkFilesystem,capacityBytes:9829107105792,availableBytes:-184549376},templateInfo:{},result:true,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Received: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, { ModifyStoragePoolAnswer } } 2013-09-05 10:02:02,399 DEBUG [db.Transaction.Transaction] (catalina-exec-10:null) Rolling back the transaction: Time = 2 Name = update; called by -Transaction.rollback:890-Transaction.removeUpTo:833-Transaction.close:657-TransactionContextBuilder.interceptException:63-ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept:133-GenericDaoBase.update:775-ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept:125-GenericDaoBase.update:1256-ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept:125-StorageManagerImpl.connectHostToSharedPool:1652-StorageManagerImpl.createPool:1402-StorageManagerImpl.createPool:147 2013-09-05 10:02:02,400 WARN [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Unable to establish a connection between Host[-11-Routing] and Pool[202|NetworkFilesystem] com.cloud.utils.exception.CloudRuntimeException: DB Exception on: com.mysql.jdbc.JDBC4PreparedStatement@4bdade88: UPDATE storage_pool SET storage_pool.available_bytes=-184549376, storage_pool.capacity_bytes=9829107105792 WHERE storage_pool.id = 202 at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:822) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:775) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:1256) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.storage.StorageManagerImpl.connectHostToSharedPool(StorageManagerImpl.java:1652) at com.cloud.storage.StorageManagerImpl.createPool(StorageManagerImpl.java:1402) at com.cloud.storage.StorageManagerImpl.createPool(StorageManagerImpl.java:147) at org.apache.cloudstack.api.command.admin.storage.CreateStoragePoolCmd.execute(CreateStoragePoolCmd.java:123) at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:162) at com.cloud.api.ApiServer.queueCommand(ApiServer.java:505) at com.cloud.api.ApiServer.handleRequest(ApiServer.java:355) at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:302) at com.cloud.api.ApiServlet.doGet(ApiServlet.java:66) 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
答复: 请问主存储的大小最大可以为多少?
看着像是因为,程序内部是通过int数据类型保存的,当一个long长度的数据被强制转 换为int类型,而这个数值又大于int的最大值时,系统自动截取了低位,成为了负值。 如下程序 long i=9829107105792l; System.out.println( (int)i); System.out.println(Long.toBinaryString(i)); System.out.println(Integer.toBinaryString((int)i)); System.out.println(Integer.toBinaryString(Integer.MAX_VALUE)); -2073034752 100011000111 11000111 111 这应该属于程序的问题,不是数据库的问题。 -邮件原件- 发件人: Bo Wang [mailto:brito.w...@gmail.com] 发送时间: 2013年9月5日 14:37 收件人: users-cn@cloudstack.apache.org 主题: Re: 请问主存储的大小最大可以为多少? 我认为问题出在这里: 更新存储的时候 available_bytes=-184549376 注意后面是一个负数,字面理解应该是存储的“有效字节数”不应该是一个负数啊!况 且按照表结构的定义也是这样,该字段是无符号的bigint,其范围是0~ 18446744073709551615 2013/9/5 WXR 474745...@qq.com 今天我在添加一个9T(9829107105792)大小主存储时,出现报错,看提示是操作的 数字超过了storage_pool表的availab le_bytes字段的范围。 不过我看数据库里这个字段的类型是bigint,应该是能够表示足够大的范围。 请问cloudstack可以添加的主存储大小范围在多少呢,我遇到的这个问题是不是容量 大小超过限制导致的? 具体的日志内容如下: 2013-09-05 10:02:02,042 DEBUG [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Adding pool data to host 11 2013-09-05 10:02:02,045 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Sending { Cmd , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 100011, [{ModifyStoragePoolCommand:{add:true,pool:{id:202,uuid:c9ce 60bb-6cb2-3531-b36a-ca122f3ef3db,host:192.168.183.2,path:/data ,port:2049,type:NetworkFilesystem},localPath:/mnt//c9ce60bb- 6cb2-3531-b36a-ca122f3ef3db,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (AgentManager-Handler-12:null) Seq 11-926745485: Processing: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, [{ModifyStoragePoolAnswer:{poolInfo:{host:192.168.183.2,local Path:/mnt//c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,hostPath:/data, poolType:NetworkFilesystem,capacityBytes:9829107105792,availabl eBytes:-184549376},templateInfo:{},result:true,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Received: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, { ModifyStoragePoolAnswer } } 2013-09-05 10:02:02,399 DEBUG [db.Transaction.Transaction] (catalina-exec-10:null) Rolling back the transaction: Time = 2 Name = update; called by -Transaction.rollback:890-Transaction.removeUpTo:833-Transaction.close :657-TransactionContextBuilder.interceptException:63-ComponentInstanti ationPostProcessor$InterceptorDispatcher.intercept:133-GenericDaoBase. update:775-ComponentInstantiationPostProcessor$InterceptorDispatcher.i ntercept:125-GenericDaoBase.update:1256-ComponentInstantiationPostProc essor$InterceptorDispatcher.intercept:125-StorageManagerImpl.connectHo stToSharedPool:1652-StorageManagerImpl.createPool:1402-StorageManagerI mpl.createPool:147 2013-09-05 10:02:02,400 WARN [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Unable to establish a connection between Host[-11-Routing] and Pool[202|NetworkFilesystem] com.cloud.utils.exception.CloudRuntimeException: DB Exception on: com.mysql.jdbc.JDBC4PreparedStatement@4bdade88: UPDATE storage_pool SET storage_pool.available_bytes=-184549376, storage_pool.capacity_bytes=9829107105792 WHERE storage_pool.id = 202 at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:822) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDis patcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:775) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDis patcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:1256) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDis patcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.storage.StorageManagerImpl.connectHostToSharedPool(StorageManagerI mpl.java:1652) at com.cloud.storage.StorageManagerImpl.createPool(StorageManagerImpl.java:1402 ) at com.cloud.storage.StorageManagerImpl.createPool(StorageManagerImpl.java:147) at org.apache.cloudstack.api.command.admin.storage.CreateStoragePoolCmd.execute (CreateStoragePoolCmd.java:123) at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:162) at com.cloud.api.ApiServer.queueCommand(ApiServer.java:505) at com.cloud.api.ApiServer.handleRequest(ApiServer.java:355) at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:302) at com.cloud.api.ApiServlet.doGet(ApiServlet.java:66) at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at
xenserver虚拟机迁移
大家好, 请教 下,现在有xenserver 虚拟机192.68.3.34 的虚拟 机有数台想迁移到不同网段的 172.11.11.上去,目标也是xenserver 如何操作。 许叁征 网宿科技股份有限公司 厦门分公司 运营技术支持部 line1 tel:021-64871177 Tel:13860125907 E-mail:x...@chinanetcenter.com http://www.chinanetcenter.com/ http://www.chinanetcenter.com cid:__1@Foxmail.net 分公司:北京-上海-广州-深圳 免费咨询热线:800-820-0001 网宿科技 --卓越的互联网业务平台提供商 _
Re: 请问主存储的大小最大可以为多少?
能列一下virsh pool-list --details的运行结果吗? 2013/9/5 WXR 474745...@qq.com 今天我在添加一个9T(9829107105792)大小主存储时,出现报错,看提示是操作的数字超过了storage_pool表的available_bytes字段的范围。 不过我看数据库里这个字段的类型是bigint,应该是能够表示足够大的范围。 请问cloudstack可以添加的主存储大小范围在多少呢,我遇到的这个问题是不是容量大小超过限制导致的? 具体的日志内容如下: 2013-09-05 10:02:02,042 DEBUG [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Adding pool data to host 11 2013-09-05 10:02:02,045 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Sending { Cmd , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 100011, [{ModifyStoragePoolCommand:{add:true,pool:{id:202,uuid:c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,host:192.168.183.2,path:/data,port:2049,type:NetworkFilesystem},localPath:/mnt//c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (AgentManager-Handler-12:null) Seq 11-926745485: Processing: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, [{ModifyStoragePoolAnswer:{poolInfo:{host:192.168.183.2,localPath:/mnt//c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,hostPath:/data,poolType:NetworkFilesystem,capacityBytes:9829107105792,availableBytes:-184549376},templateInfo:{},result:true,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Received: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, { ModifyStoragePoolAnswer } } 2013-09-05 10:02:02,399 DEBUG [db.Transaction.Transaction] (catalina-exec-10:null) Rolling back the transaction: Time = 2 Name = update; called by -Transaction.rollback:890-Transaction.removeUpTo:833-Transaction.close:657-TransactionContextBuilder.interceptException:63-ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept:133-GenericDaoBase.update:775-ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept:125-GenericDaoBase.update:1256-ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept:125-StorageManagerImpl.connectHostToSharedPool:1652-StorageManagerImpl.createPool:1402-StorageManagerImpl.createPool:147 2013-09-05 10:02:02,400 WARN [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Unable to establish a connection between Host[-11-Routing] and Pool[202|NetworkFilesystem] com.cloud.utils.exception.CloudRuntimeException: DB Exception on: com.mysql.jdbc.JDBC4PreparedStatement@4bdade88: UPDATE storage_pool SET storage_pool.available_bytes=-184549376, storage_pool.capacity_bytes=9829107105792 WHERE storage_pool.id = 202 at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:822) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:775) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:1256) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDispatcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.storage.StorageManagerImpl.connectHostToSharedPool(StorageManagerImpl.java:1652) at com.cloud.storage.StorageManagerImpl.createPool(StorageManagerImpl.java:1402) at com.cloud.storage.StorageManagerImpl.createPool(StorageManagerImpl.java:147) at org.apache.cloudstack.api.command.admin.storage.CreateStoragePoolCmd.execute(CreateStoragePoolCmd.java:123) at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:162) at com.cloud.api.ApiServer.queueCommand(ApiServer.java:505) at com.cloud.api.ApiServer.handleRequest(ApiServer.java:355) at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:302) at com.cloud.api.ApiServlet.doGet(ApiServlet.java:66) 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)
??????????: ????????????????????????????????
?? ??9T2T?? cloudstack??4.1.0??hypervisor??kvm??cloudstack??bug?? -- -- ??: ;che...@ourfuture.cn; : 2013??9??5??(??) 3:50 ??: users-cnusers-cn@cloudstack.apache.org; : : int??long?? int??int long i=9829107105792l; System.out.println( (int)i); System.out.println(Long.toBinaryString(i)); System.out.println(Integer.toBinaryString((int)i)); System.out.println(Integer.toBinaryString(Integer.MAX_VALUE)); -2073034752 100011000111 11000111 111 -- ??: Bo Wang [mailto:brito.w...@gmail.com] : 2013??9??5?? 14:37 ??: users-cn@cloudstack.apache.org : Re: ?? available_bytes=-184549376 bigint??0~ 18446744073709551615 2013/9/5 WXR 474745...@qq.com 9T??9829107105792 ??storage_poolavailab le_bytes bigint?? cloudstack ??? 2013-09-05 10:02:02,042 DEBUG [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Adding pool data to host 11 2013-09-05 10:02:02,045 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Sending { Cmd , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 100011, [{ModifyStoragePoolCommand:{add:true,pool:{id:202,uuid:c9ce 60bb-6cb2-3531-b36a-ca122f3ef3db,host:192.168.183.2,path:/data ,port:2049,type:NetworkFilesystem},localPath:/mnt//c9ce60bb- 6cb2-3531-b36a-ca122f3ef3db,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (AgentManager-Handler-12:null) Seq 11-926745485: Processing: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, [{ModifyStoragePoolAnswer:{poolInfo:{host:192.168.183.2,local Path:/mnt//c9ce60bb-6cb2-3531-b36a-ca122f3ef3db,hostPath:/data, poolType:NetworkFilesystem,capacityBytes:9829107105792,availabl eBytes:-184549376},templateInfo:{},result:true,wait:0}}] } 2013-09-05 10:02:02,350 DEBUG [agent.transport.Request] (catalina-exec-10:null) Seq 11-926745485: Received: { Ans: , MgmtId: 196039272834978, via: 11, Ver: v1, Flags: 10, { ModifyStoragePoolAnswer } } 2013-09-05 10:02:02,399 DEBUG [db.Transaction.Transaction] (catalina-exec-10:null) Rolling back the transaction: Time = 2 Name = update; called by -Transaction.rollback:890-Transaction.removeUpTo:833-Transaction.close :657-TransactionContextBuilder.interceptException:63-ComponentInstanti ationPostProcessor$InterceptorDispatcher.intercept:133-GenericDaoBase. update:775-ComponentInstantiationPostProcessor$InterceptorDispatcher.i ntercept:125-GenericDaoBase.update:1256-ComponentInstantiationPostProc essor$InterceptorDispatcher.intercept:125-StorageManagerImpl.connectHo stToSharedPool:1652-StorageManagerImpl.createPool:1402-StorageManagerI mpl.createPool:147 2013-09-05 10:02:02,400 WARN [cloud.storage.StorageManagerImpl] (catalina-exec-10:null) Unable to establish a connection between Host[-11-Routing] and Pool[202|NetworkFilesystem] com.cloud.utils.exception.CloudRuntimeException: DB Exception on: com.mysql.jdbc.JDBC4PreparedStatement@4bdade88: UPDATE storage_pool SET storage_pool.available_bytes=-184549376, storage_pool.capacity_bytes=9829107105792 WHERE storage_pool.id = 202 at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:822) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDis patcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:775) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDis patcher.intercept(ComponentInstantiationPostProcessor.java:125) at com.cloud.utils.db.GenericDaoBase.update(GenericDaoBase.java:1256) at com.cloud.utils.component.ComponentInstantiationPostProcessor$InterceptorDis patcher.intercept(ComponentInstantiationPostProcessor.java:125) at
RE: cloudstack4.2源码搭建agent环境?
我是使用kvm+ubuntu环境,这能说的详细点吗? 还有就是一定要打成deb包吗, 能不能直接想maven启动管理平台一样,启动? Date: Thu, 5 Sep 2013 09:46:51 +0200 Subject: Re: cloudstack4.2源码搭建agent环境? From: ustcweiz...@gmail.com To: users-cn@cloudstack.apache.org 如果是xenserver/vmware,不需要安装agent。可以参考4.1的installation guide来配置。 如果是kvm,可以使用进入packaging/centos63/运行package.sh来建rpm(centos/rhel),或者使用dpkg-buildpackage -uc -us创建deb (ubuntu) 在 2013年9月5日上午7:56,王耀锋 wilc...@hotmail.com写道: 我使用cloudstack4.2源码搭建了management的 环境,可以登录到界面上,现在我想添加一个主机,不知道怎么在服务器上运行4.2的cloud-agent?