Vijay-1 opened a new pull request #1908: Changes for Backup Edge Cache Group URL: https://github.com/apache/incubator-trafficcontrol/pull/1908 This PR implements solution for the issue: https://github.com/apache/incubator-trafficcontrol/issues/1907 It places the backup policy in the CZF file <Sample CZF file with backup list configuration> { "coverageZones": { "GROUP2": { "backupList": ["GROUP1"], "network6": [ "1234:567a::\/64", "1234:567b::\/64" ], "network": [ "10.197.69.0\/24" ] }, "GROUP1": { "backupList": ["GROUP2"], "network6": [ "1234:5677::\/64", "1234:5676::\/64" ], "network": [ "10.126.250.0\/24" ] } } } </Snip> The following test cases has been executed successfully for both DNS and HTTP Routing: Test Setup ----------- GROUP1 : Two cache Servers Group2 : One Cache Server GEO Limit set to CZF only Request from GROUP1's subnet , with one server in GROUP1 down and make sure the request is getting redirected to the remaining server in GROUP1 Request from GROUP1's subnet , with both servers in GROUP1 down and make sure the request is getting redirected to the GROUP2 **Regression cases** Set GEO limit to None without backup list configured in CZF Request from GROUP1's subnet , with both servers in GROUP1 down and make sure the request is getting redirected to the GROUP2
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