Installing Enterprise Manager 12c on Virtualbox with OEL6

By |2019-10-05T18:31:15+02:00January 5th, 2019|Categories: grid control, Oracle Enterprise Manager|Tags: , , , , , |

I was a newbie with Virtualbox and Enteprise Manager 12C with OEL6 (64-bit) was quite a new combination, so what can go wrong…?

You could do the following:

  • read an article about installing OEL6 here or
  • read an article about installing software on Virtualbox

Metric ‘swap utilisation(%)’ on Grid Control node too high.

By |2019-10-07T08:35:29+02:00August 12th, 2011|Categories: grid control, Oracle Enterprise Manager|Tags: , , , , , |

The metric 'swap utilisation (%)' on the node where Grid Control resides, shows permanently a very hig value. Red Hat Linux, 64-bits, 32GB RAM, 4GB swap. Adding 4GB to the swap-file solved the problem.

Errors in alert log [NI cryptographic checksum mismatch] TNS-12599

By |2019-09-29T16:30:32+02:00May 25th, 2011|Categories: Database, grid control|Tags: , , |

Using rdbms 11.2 as the repository for our Grid Control environmont, noticed a lot of the same errors in the alert file of the repository or/and the target database:

NI cryptographic checksum mismatch error: 12599.
VERSION INFORMATION:
TNS for Linux: Version 11.2.0.2.0 – Production
Oracle Bequeath NT Protocol Adapter for Linux: […]

Enterprise manager falsely reports active connections

By |2019-09-29T17:46:06+02:00September 23rd, 2009|Categories: grid control, Oracle Enterprise Manager|Tags: , , |

After installing and configuring application server, the agent on that server started to sent messages like 'The number of active connections is ..' . But.. there are no connections yet on the system (as far as I know)! Grid Control (OMS + agent) = 10.2.05, application server 10.1.2.0.2

Discoverer shows down in Enterprise Manager while up.

By |2019-09-29T12:08:46+02:00September 9th, 2009|Categories: grid control, Oracle Enterprise Manager|Tags: , , , |

Short one this time, all in favour of getting my green ‘pie’ in Grid Control management server.

Grid Control: 10.2.0.5. Discoverer: 10.1.2.x
In Grid Control, after upgrade to 10.2.0.5, a Discoverer target shows down in the list, while it’s functioning quite well.

It seemed an old bug (Grid Ctrl 10.1.04) is still not […]

Object ODS.OID_RESPONSE_ARRAY_TYPE does not exist, Grid Control 10.2.0.5

By |2019-10-12T17:44:16+02:00August 31st, 2009|Categories: grid control|Tags: , , , , |

After installing Oracle Application Server 10.2.0.2, with corresponding OID, Grid Control 10.2.0.5 gave me the obove mentioned error, and the the item OID gave a 'metric collection error'. To fix the metric collection error downloaded and applied Patch 5686191 on top of OID product.This is a sql-script to run against the OID-repository.

Grid Control , ora-27102, memory needed.

By |2019-09-29T17:09:51+02:00May 10th, 2009|Categories: grid control|Tags: , , , |

Tried to prepare my 10.2.0.4 – Grid Control for an upgrade to 10.2.0.5.   See also http://download.oracle.com/docs/cd/B16240_01/doc/install.102/e10953/toc.htm .

Updated for example the shared_pool_size  as 128MB as minimum size (see below for other  recommended fixed parameter settings),  although I think it also will work while setting the sga_target. Changed […]

Status application server down in Grid Control, while all components are up.

By |2009-04-21T16:15:57+02:00April 21st, 2009|Categories: grid control|Tags: , |

Platform:  application server 10.1.2.0.2 on Suse Linux 9. Grid Control agent 10.2.04.

All components within the application server are up, but the home page of Grid Control showing it down.

Underlying cause: bug in discovering ports by the agent.  Agent discovering process gets Forms url Port from < HOME_IAS>/10.1.2/forms/server/target2add.xml. But this port […]

Crash Grid Control agent, too many open files;health check-error

By |2019-09-28T19:33:55+02:00April 16th, 2009|Categories: grid control|Tags: , , |

Agent (10.2.0.4) crashes – on a site (64-bit) with many databases (10.2.0.3) a lot, intermittently – , too many open files, emagent.trc gives ‘health check’ error

Agent gave messages – in the past – like this:

Number files opened by Agent is 1140.
These files appeared to be the $ORACLE_HOME/dbs/hc<instance>_.dat which is […]