Grid Control: number of active connections is….

By | September 23rd, 2009|Categories: grid control|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

VM-time out of sync, runs too fast with guest-O.S. Suse Linux 9 / 10

By | September 9th, 2009|Categories: grid control|Tags: , |

Grid Control is calling  >> “Difference between OMS system time and Agent system time is 121 mins and has exceeded the critical threshold 120 mins”

The system time runs too fast on a (Suse) Linux-based (kernel 2.6) virtual machine, while the ntp has been configured. There are a lot of documents regarding this kind of issues. For explanation and understanding a few documents we used:
http://www.vmware.com/pdf/vmware_timekeeping.pdf
http://support.microsoft.com/kb/918461 (Microsoft? seems to work for VM-ware too…)
http://www.novell.com/coolsolutions/feature/15345.html (time not syncing with ntp-server)

Next option for me when all above should not be working, but didn’t have to use it:
http://ict-freak.nl/2007/01/10/how-to-setup-ntp-on-vmware-esx-server/

Solution we implemented, seemed to work:
– add the clock=pit parameter to the kernel entry (for explanation, see below)
– in addition add the option ‘burst iburst‘ to the ntp-configuration.

To see by the way how the ntp is working:
# watch ntpq -p

Clock=pit for the GRUB bootloader
In the guest operating system, open the /boot/grub/menu.lst file by using a text editor such as Vi. For example, type the following command from a console, and then press ENTER:
vi /boot/grub/menu.lst
This file contains the Linux boot options and resembles the following:
title Linux
kernel (hd0,4)/vmlinuz root=/dev/hda7 vga=791
initrd (hd0,4)/initrd
title windows
etc.
In the title Linux area of this file, add the clock=pit parameter to the kernel entry. This area should resemble the following:
title Linux
kernel (hd0,4)/vmlinuz root=/dev/hda7 vga=791 clock=pit
initrd (hd0,4)/initrd
Save the changes to the file, exit Vi, and then restart the Linux-based virtual machine.

[…]

Discoverer shows down in Grid Control while up.

By | September 9th, 2009|Categories: grid control|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 | August 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.

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

By | April 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 | April 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 loaded […]

Grid Control, OMS : large number of defunct-processes

By | March 31st, 2009|Categories: grid control|Tags: , |

On my Grid Control management-server (Suse Linux, OMS version 10.2.0.4) a very large number of <defunct> processes arose what eventually caused the OMS not to respond anymore.

Looked like this:
oracle   16932 15961  0 Mar03 ?        00:00:00 <defunct>
oracle   16987 15961  0 Mar03 ?        00:00:00 <defunct>
oracle   17027 15961  0 […]

Installing Grid Control 10.2.0.4

By | November 14th, 2008|Categories: grid control|Tags: , |

Redelijk gedoe met versies. Basis: Suse Linux 9, 32-bits. Agents op Suse Linux: versie 9 en 10, 64-bits.

install-grid-control_10.2.0.4