I won’t apologize to Oracle for saying that the new Incident Manager has some quirks to it, but it does, especially when it comes to managing incidents, events and how to clear out both.  I’m going to attempt in this post to explain how to check to see if you have alerts that can be cleared with an EMCLI command and then also take you through clearing out from the GUI, which is available in the Release 2 of EM12c.

If you want to know what kinds of stateless alerts that can be cleared manually, then once logged into the EMCLI, (Enterprise Manager Command Line Interface) you can do the following:

./emcli login -username=<login name>
./emcli get_metrics_for_stateless_alerts  -target_type=osm_instance

This command will return all metric types and alert types that can be cleared out for ASM alerts, (osm_instance).  You can do this for oracle_database or any of the other target_types.

As always, if you need help, EMCLI offers a good help option.  You can save off the file for reference and then gather more help info on specific verbs by doing the following:

./emcli help > emcli_verb.lst  <--creates the output file of the emcli verbs and descriptions.
./emcli help <verb>  <--gives you a descriptions, syntax and examples for a specific verb.

If you aren’t sure of Target Type names, you can query the database or you can do wild card searches through the EMCLI:

./emcli get_targets -targets=%database%
./emcli get_targets -targets=%osm%
./emcli get_targets -targets=%

This first option above returns a list of all targets that are database type targets.  The second returns all ASM targets and the third returns everything.  Some of the output from the third looks like the following:

ID      Status           Target Type           Target Name
0       Down             oracle_listener       LISTENER_SCAN2_exa1-cluster
1       Up               oracle_oms            oemdb02.orcl.com:48
1       Up               oracle_oms_console    oemdb02.orcl.com:48 
1       Up               oracle_oms_pbs        oemdb02.orcl.com:48
1       Up               oracle_database       orcl_db3.world_orcl2
1       Up               oracle_database       orcl_db4.world_orcl1
1       Up               oracle_exa_pdu        exa1-pdua.orcl.com
1       Up               oracle_exadata        exa1cel07.orcl.com
1       Up               osm_cluster           +ASM_exa1-cluster
1       Up               osm_cluster           +ASM_exa1-cluster
1       Up               osm_instance          +ASM1_exa1db01.orcl.com

Before attempting to run a clearstate on incidents, lets look at how to check for these.Note that we use two arguments here with the clear_stateless_alerts verb:

  • Unacknowledged_only-  Only those alerts that have not been acknowledged, which helps distinguish from any that may be currently worked by someone.
  • Preview-  I want to just check and see how many are available to be cleared.  The command will not clear anything this way, only tell me how many!
$ ./emcli clear_stateless_alerts -older_than=0 -target_type=oracle_database -target_name=<target name> -unacknowledged_only -ignore_notifications -preview

 The following alerts can be cleared:

Total Alerts
==============
1

Now, if you want to clear the one alert that is available to be cleared as stateless, you can:

$  ./emcli clear_stateless_alerts -older_than=0 -target_type=oracle_database -target_name=<target_name> 
1 alerts were cleared successfully.

Now if you have a huge quantity of alerts that are not available for clearing with this process, the EM12c console Incident interface offers the ability to mass clear alerts in release 2, (apologies to anyone still using BP1 and lower, this option will not work!)

From the EM12c console, there are a number of ways to access alerts, via the Incident Manager from the Enterprise drop down or from a database target summary page, but for this example, we will work from groups.

By clicking on All Targets, then Groups, we are brought to the groups summary page.  As we see, our Prod group has 932 open incidents identified with this group:

em12c_inc

By clicking on the incidents link, (which is the number of incidents, so for this group, we would click on the “932″) we are then taken to the overall incidents summary for this group.

If you hover your cursor over the left hand side column, just left of the Severity column, you are able to hold your left mouse button and choose multiple alerts:

em12c_mult

By dragging the mouse down, you can choose as many incidents/events as you wish.  Once you have chosen the amount you wish to remove, note that the “Rows Selected” will show in the left bottom corner, (for our example, we have 7.)  You can then click the “Clear” button, identified with the pencil eraser.

The confirmation pop-up screen will then ask you to confirm and click OK, but remember to change it to not send email notifications so as not to “spam” everyone.

em12c_ver

The worst thing you can do is send ridiculous amounts of emails telling everyone you are removing each of these incidents.  Remember, we hate “white noise”… :)   Once you have confirmed this is what you want to do, click “OK”.  You can do this for as many or as little incidents to clear out the system as you would like at a time.

Remember-  Any incidents that are still an incident and need attention will recreate on the next metric collection for the target.