Mangled or Managed?Does Grid Control Deliver

Agenda

• About – Maxima– Me

• Enterprise Manager– Architecture– Good– Bad– Troubleshooting– Licensing– Plugins

• Conclusion Q&A

Who we are

Maxima is one of the UK and Ireland’s leading IT solution and service providers, offering a unique blend of deep industry knowledge and specialist technology expertise to deliver real business value to organizations of all sizes across a wide range of commercial sectors.

Who I am

• UKOUG – Chair of UKOUG Oracle on Windows SIG (come present for us)

• Maxima – Consultant DBA, Maxima Managed Services• Oak Table – Windows, “you always make me laugh”, “and

another thing”. • www.orawin.info/• Manager of apps dbas• Manager of developers• Auditor• Father of 3 under 8 – try it, managing developers is easier. • Sussex CCC – long suffering then glory.• Liverpool FC – glory then long suffering.

ARCHITECTUREUnderstanding the design

Enterprise Manager Architecture

Oracle Management Server

Oracle Management Repository

Oracle 10.1.0.4 - End Premier Support Jan 2009

All EM Releases are patches to base release. Can’t use a supported release as an install target.

Note 467677.1 – How to Install Grid Control to use 11g for the Repository

Oracle Management Agent

• 32bit Java application.• Does most of the work• Communicates

Infrastructure Communications

• http 7777 – EM Website• https 4889 – EM Website including agent to

OMS• https 1831 – OMS to Agent• jdbc - OMS to Repository• Check Ports carefully

THE GOOD

Performance Tuning

Blackouts

• Provide a way to schedule reduced monitoring

• Server room outage• Database Upgrade in multi-standby

environment

Reporting

Remember I used to be a manager!

Scripting

• Perl jobs

Job System

• Stats Gathering• ETL• Data Movement

Service Level Management

• Availability and Performance

Monitoring Templates

• Work properly as of 10.2.0.5

Helpdesk Integration

• Email customisation• Remedy Connector

– Remedy Connector

THE BAD

Notable bugs

• Healthcheck for different db version• Clone db files must be smaller than 2gb till

current version• Target Discovery Selects Wrong Database

Name For Dataguard Target• Agent Installation Hangs at the Target

Discovery Process Due to Customized glogin.sql File

Configuration Issues

• .properties files• Status of database instance• Non-oracle clusters (lifekeeper ,vcs, etc)• Web cache• Statspack integration

TROUBLESHOOTING

Basic Approach

• Identify the problem component• Record symptoms (error messages, response

time).• Locate related logfiles• Review log files around time of exception for

any related error entries.• Resolve the error.

Web Server

• Oracle HTTP Server (Apache)• $ORACLE_HOME/Apache/Apache/logs• The following log files can be reviewed:

– Access Log– Error Log– SSL Log (If using SSL, and error is SSL related)

• $ORACLE_HOME oms10g

Web Cache

• Runs in Oracle HTTP Server home• $ORACLE_HOME/Apache/Apache/logs• Event.log

– Note 454533.1 Common Troubleshooting Techniques for OracleAS Web Cache

– Note 259796.1 OracleAS Web Cache event_log messages: Format and Meaning

Oracle Management Server

• Managed by opmn– PATH=$ORACLE_HOME/oms10g/opmn/bin:$PATH

export $PATH– Makes it easier to use correct opmnctl

• Start/Stop components individually– opmnctl start

opmnctl startproc ias-component=WebCacheopmnctl startproc ias-component=HTTP_Serveropmnctl startproc process-type=homeopmnctl startproc process-type=OC4J_EMopmnctl startproc process-type=OC4J_EMPROV

Management Server Status

• [oracle@gcserver ~]$ opmnctl status –v

Processes in Instance: EnterpriseManager0.gcserver.domain-------------------+--------------------+---------+----------+------------+----------+-----------+------ias-component | process-type | pid | status | uid | memused | uptime | ports-------------------+--------------------+---------+----------+------------+----------+-----------+------DSA | DSA | N/A | Down | N/A | N/A | N/A | N/AHTTP_Server | HTTP_Server | 20759 | Alive | 1327300712 | 42332 | 291:14:29 |

http1:7778,http2:7200,https1:4444,https2:1159,http3:4889LogLoader | logloaderd | N/A | Down | N/A | N/A | N/A | N/Adcm-daemon | dcm-daemon | N/A | Down | N/A | N/A | N/A | N/AOC4J | home | 20760 | Alive | 1327300713 | 26852 | 291:14:57 |

ajp:12501,rmi:12401,jms:12601OC4J | OC4J_EMPROV | 20761 | Alive | 1327300714 | 29772 | 291:14:57 |

ajp:12502,rmi:12402,jms:12602OC4J | OC4J_EM | 14041 | Alive | 1327300754 | 452092 | 86:09:11 |

ajp:12503,rmi:12403,jms:12603WebCache | WebCache | 20771 | Alive | 1327300716 | 27612 | 291:14:57 |

http:7777,invalidation:9401,statistics:9402WebCache | WebCacheAdmin | 20764 | Alive | 1327300717 | 5924 | 291:14:57 |

administration:9400

OC4J Verification

• home - IsWebCacheWorking– HTTP://<GC_URL/ IsWebCacheWorking

OC4J Verification

• EM – Rules Manager Login – http://<GC_URL>/rlmgr/rlmgr_login.htm

OC4J Verification

• EM Prov – Agent Deploy Page– <EM URL>/EMAgentPush/home.jsp

OC4J - Logs• $ORACLE_HOME/j2ee/<OC4J_instance>/log/<OC4J_instance>_default_island_1/logfile

• default-web-access.log• server.log• 2gb limit on some platforms

LICENSING

License basis

• Grid control free• Infrastructure Repository Databases A separate Oracle Database can be installed and used as a Recovery Manager

(RMAN) repository without additional license requirements, provided that all the Oracle databases managed in this repository are correctly licensed. This repository database may also be used for the Oracle Enterprise Grid Control repository. It may not be used or deployed for other uses.

• A separate Oracle Database can be installed and used as a Oracle Enterprise Manager Grid Control (OEM Grid Control) repository without additional license requirements, provided that all the targets (databases, applications, and so forth) managed in this repository are correctly licensed. This database may also be used for the RMAN repository. It may not be used or deployed for other uses

• Management packs do cost• Management packs still cost without GC

– Eg awrrpt.sql

Plugins

• A wide variety of extra cost options• http://www.pythian.com/news/mysql-plugin-f

or-oracle-grid-control• Oracle-l (self developed sqlserver)

Conclusions

• Grid Control is a mature product.• Grid Control can be complex. • Probably not worth it for small installations <

5 databases/3 servers• Strategic product