Applying Monthly Patch and CR on Gateway Cluster

Products

• CA API Gateway

Issue/Introduction

1) What is the complete process for applying a monthly patch?

2) Is there anything different we need to do for a clustered environment?

3) What is the process for applying a new CR? Again, is there anything different we need to do for a clustered environment?

 

Environment

Release : 10.1, 11.x

Component : API GATEWAY

Resolution

1. VM snapshot of both nodes before patching.

2. stop the the slaves  on both nodes (without break Db replication)

   - stop the ssg service before stopping the slave

   service ssg stop

then 

   mysqladmin stop-replica 

 3. apply Mpp on Primary Node, need reboot, after reboot check all if ok, then stop ssg again to proceed with secondary nodes.

4. On Secondary node#1 , apply Mpp , need reboot, stop ssg service after checked all works fine. and proceed with the other nodes

5. Need to repeat the process for each secondary node when patching. 

6. Once finished all patches start ssg on Primary, then start ssg service on secondary one by one.

Additional Information

https://support.broadcom.com/external/content/release-announcements/CA-API-Gateway-Solutions--Patches/3024

For instructions on how to apply this cumulative release patch file, refer to the applicable topic in the Layer7 API Gateway online documentation: 
 
 * Patch an Appliance Gateway: https://techdocs.broadcom.com/us/en/ca-enterprise-software/layer7-api-management/api-gateway/11-1/install-configure-upgrade/upgrade-the-gateway/understand-gateway-patches/patch-an-appliance-gateway.html
 
 * Patch a Software Gateway: https://techdocs.broadcom.com/us/en/ca-enterprise-software/layer7-api-management/api-gateway/11-1/install-configure-upgrade/upgrade-the-gateway/understand-gateway-patches/patch-a-software-gateway.html