Swift实现OC中的单例模式

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2024-07-08 01:15:14 225人阅读

今天想通过手动的方式上传下信息到GRID CONTROL MANAGEMENT REPOSITORY里，出现如下的错误(红色部分)：

[oracle@vmoel5u4 bin]$ ./emctl status agent
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
Agent Version     : 10.2.0.1.0
OMS Version       : 10.2.0.1.0
Protocol Version : 10.2.0.0.0
Agent Home        : /u01/app/oracle/product/10.2.0/agent10g
Agent binaries    : /u01/app/oracle/product/10.2.0/agent10g
Agent Process ID : 4254
Parent Process ID : 4239
Agent URL         : http://vmoel5u4.oracle.com:3872/emd/main/
Repository URL    : http://even.oracle.com:4889/em/upload/
Started at        : 2012-12-03 20:12:41
Started by user   : oracle
Last Reload       : 2012-12-03 21:42:59
Last successful upload                       : (none)
Last attempted upload                        : (none)
Total Megabytes of XML files uploaded so far :     0.00
Number of XML files pending upload           :      508
Size of XML files pending upload(MB)         :    24.03
Available disk space on upload filesystem    :    54.38%
Last attempted heartbeat to OMS              : 2012-12-04 00:10:18
Last successful heartbeat to OMS             : unknown
---------------------------------------------------------------
Agent is Running and Ready
[oracle@vmoel5u4 bin]$ ./emctl upload
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
EMD upload error: uploadXMLFiles skipped :: OMS version not checked yet..

具体的解决方法如下：

步骤一，查看客户端的AGENT服务是否启动：

[oracle@vmoel5u4 bin]$ $AGENT_HOME/bin/emctl status agent
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
Agent Version     : 10.2.0.1.0
OMS Version       : 10.2.0.1.0
Protocol Version : 10.2.0.0.0
Agent Home        : /u01/app/oracle/product/10.2.0/agent10g
Agent binaries    : /u01/app/oracle/product/10.2.0/agent10g
Agent Process ID : 4254
Parent Process ID : 4239
Agent URL         : http://vmoel5u4.oracle.com:3872/emd/main/
Repository URL    : http://even.oracle.com:4889/em/upload/
Started at        : 2012-12-03 20:12:41
Started by user   : oracle
Last Reload       : 2012-12-03 21:42:59
Last successful upload                       : (none)
Last attempted upload                        : (none)
Total Megabytes of XML files uploaded so far :     0.00
Number of XML files pending upload           :      508
Size of XML files pending upload(MB)         :    24.03
Available disk space on upload filesystem    :    54.38%
Last attempted heartbeat to OMS              : 2012-12-04 00:10:18
Last successful heartbeat to OMS             : unknown
---------------------------------------------------------------
Agent is Running and Ready
从上面的Agent is Running and Ready就知道，客户端的agent是正常的。

步骤二：查看服务器端的OMS 服务是否都正常。

[oracle@even bin]$ cd $OMS_HOME/opmn/bin
[oracle@even bin]$ ./opmnctl status

从上面的红色部分可以看出HTTP_SERVER服务是不正常的，他的状态既然是NONE。

步骤三：关闭OMS的所有服务。

[oracle@even bin]$ ./opmnctl stopall
opmnctl: stopping opmn and all managed processes...

步骤四：重新启动所有服务如下：
[oracle@even bin]$ ./opmnctl startall
opmnctl: starting opmn and all managed processes...
[oracle@even bin]$ ./opmnctl status

从上面可以看出HTTP_SERVER现在是Alive的状态了。此状态时正常的。

步骤5，重新从客户端上传信息

[oracle@vmoel5u4 bin]$ ./emctl upload
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
EMD upload error: uploadXMLFiles skipped :: OMS version not checked yet..
[oracle@vmoel5u4 bin]$ ./emctl upload
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
EMD upload completed successfully

步骤6，查看下信息是否上传成功：

[oracle@vmoel5u4 bin]$ ./emctl status agent
Oracle Enterprise Manager 10g Release 10.2.0.1.0.
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
---------------------------------------------------------------
Agent Version     : 10.2.0.1.0
OMS Version       : 10.2.0.1.0
Protocol Version : 10.2.0.0.0
Agent Home        : /u01/app/oracle/product/10.2.0/agent10g
Agent binaries    : /u01/app/oracle/product/10.2.0/agent10g
Agent Process ID : 4254
Parent Process ID : 4239
Agent URL         : http://vmoel5u4.oracle.com:3872/emd/main/
Repository URL    : http://even.oracle.com:4889/em/upload/
Started at        : 2012-12-03 20:12:41
Started by user   : oracle
Last Reload       : 2012-12-03 21:42:59
Last successful upload                       : 2012-12-04 00:43:27
Total Megabytes of XML files uploaded so far :    24.50
Number of XML files pending upload           :        0
Size of XML files pending upload(MB)         :     0.00
Available disk space on upload filesystem    :    54.47%
Last successful heartbeat to OMS             : 2012-12-04 00:45:07
---------------------------------------------------------------
Agent is Running and Ready
从上面的红色的部分可以看出信息上传成功(pending upload = 0)。

从这个案例可以看出如果OMS的某些重要的服务不正常的话，可能会有一些奇怪的错误。

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Swift实现OC中的单例模式

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