Version 16 (modified by 9 years ago) (diff) | ,
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CHK-003 GENI Network Stitching Checks
This procedure defines how GENI Network Stitching status can be verified. Checks to be verified include:
- Status of the Stitching Computation Service (SCS) Server
- Status of the GENI Stitching Sites Paths
1.0 GENI SCS - Server Check
1.1 Goals of SCS - Server Check
The SCS is a service that provides stitching path information for known sites. This section defines to verify that the SCS server is up and providing path information for the known stitching sites. All information used is found in the GENI Monitoring System and is also available via alerts to GPO Nagios System. There are currently 2 SCS Server Checks that are run for:
- scs-geni - The Internet2 Production SCS server
- scs-geni-test - The Test SCS which is used for testing purposed by GPO, InstaGENI, CloudLab and iMind teams.
1.2 Steps for SCS - Server Check
- Login to GPO Nagios System
- Select
Host Groups->Summary
in the left hand navigation bar. This will bring you to this page
- Look for
GENI Stitching Computation Services
, and click on theGENI Stitching Computation Services
link in theHost Group
column to see details. This will bring you to theService Overview For Host Group
page.
- Resulting page shows the SCS systems being monitored. There are currently 2 instances being monitored: Internet2 SCS and the Test SCS at MAX.
- Review the Internet2 SCS
scs-geni
service status, which can beUP
,DOWN
orPENDING
. - Click on the
scs-geni
link of the Hostcolumn. This will bring you to the
Service Status Details For Host scs-geni` page.
- Look for a service named
gpo:is_available
and confirm that the status isUP
.
- Go back to the
Service Overview For Host Group
page reached inStep 3
. Review the Test SCSscs-geni-test
service status, which can beUP
,DOWN
orPENDING
. - Click on the
scs-geni-test
link of the Hostcolumn. This will bring you to the
Service Status Details For Host scs-geni-test` page. - Look for a service named
gpo:is_available
and confirm that the status isUP
.
Note: the host status themselves is expected to always be PENDING
.
1.3 SCS - Server Check - Pass Criteria
If step 7 shows UP
, than the Production Internet2 SCS check passes. A value of UP
means that the SCS service is running and answering a listaggregates
request. The monitoring system also verifies that the list of aggregates returned includes the expected sites.
If step 10 shows UP
, than test SCS check passes. A value of UP
means that the SCS service is running and answering a listaggregates
request. The monitoring system also verifies that the list of aggregates returned includes the expected sites.
1.4 SCS - Server Check - Fail Criteria and Escalation
If step 7 shows DOWN
, than the Production SCS check fails. A value of DOWN
means that the SCS system is either not responding or responding with the wrong list of site aggregates.
Escalation: SCS status issues should be escalated to GMOC.
If step 10 shows DOWN
, than the check fails. A value of DOWN
means that the test SCS system is either not responding or responding with the wrong list of site aggregates.
Escalation: Test SCS issues should be escalated to the MAX Development team.
2.0 GENI Stitching Sites - Path Check
2.1 Goals of Stitching Sites - Path Check
The Stitching Site check verifies that the SCS knows all path combinations between all aggregates that support stitching. This check does no actually verify that the paths suggested are able to exchange traffic, but that they are known to the SCS. This check occurs 3 times a day at 1 am, 9 am and 5 pm (Eastern time).
2.2 Steps for Stitching Sites - Path Check
Nagios alerts are available for stitching paths checks. Alerts can be found as follows:
- Login to GPO Nagios System
- Select
Host Groups->Summary
in the left hand navigation bar. - Look for
GENI SCS Path Availability -> Service Status Summary
for the SCS check. This provides an overall status. - Status can be
UP
,DOWN
orPENDING
. If some results areDOWN
orPENDING
, select each to see the details.
2.3 Stitching Sites - Path Check - Pass Criteria
If step 3 shows all results as UP
, this check passes and you can skip subsequent step 4.
2.4 Stitching Sites - Path Check - Fail Criteria and Escalation
If step 3 shows status as DOWN
or PENDING
then proceed to step 4 to collect path details about failure.
Escalation: SCS path issues should be escalated to GMOC.
Attachments (4)
-
Nagios-Host Groups Summary.png (160.3 KB) - added by 9 years ago.
Nagios-Host Groups Summary
-
Nagios-Service Overview For Host Group SCS.png (124.3 KB) - added by 9 years ago.
Nagios-Service Overview For Host Group SCS
-
Nagios-Service Status Details For Host scs-geni 1.png (226.2 KB) - added by 9 years ago.
Service Status Details For Host scs-geni part 1
-
Nagios-Service Status Details For Host scs-geni 2.png (240.8 KB) - added by 9 years ago.
Service Status Details For Host scs-geni part 2
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