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Line 24:
Line 24: − gmysql-basic-query=SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=0 AND (UnixSeconds is NULL OR UnixSeconds > (UNIX_TIMESTAMP() - 120)) and type=? and name=?+ Line 30:
Line 30: − + − + − +
→regsvcs.allstarlink.org
On the DNS server we have modified the default query for a lookup to:
On the DNS server we have modified the default query for a lookup to:
gmysql-basic-query=SELECT content,ttl,prio,type,domain_id,disabled,name,auth FROM records WHERE disabled=0 AND (UnixSeconds is NULL OR UnixSeconds > (UNIX_TIMESTAMP() - 120)) and type=? and name=?
This will only return a record if UnixSeconds is Null or has been updated in the last 120 seconds.
This will only return a record if UnixSeconds is Null or has been updated in the last 120 seconds.
If the node loses connectivity, it will be timed out of DNS due to this in 120 seconds. This is a "dead-man switch" function which will enable losing any one node in the cluster.
If the node loses connectivity, it will be timed out of DNS due to this in 120 seconds. This is a "dead-man switch" function which will enable losing any one node in the cluster.
register.allstarlink.org is a CNAME to register.regscvs.allstarlink.org under this. The node list servers are under this as well as node[1-4].allstarllink.org CNAME nodes.regsvcs.allstarlink.org
'''register.allstarlink.org''' is a CNAME to '''register.regscvs.allstarlink.org''' under this. The node list servers are under this as well as '''node[1-4].allstarllink.org''' CNAME '''nodes.regsvcs.allstarlink.org
'''
== recovery of a down server ==
== recovery of a down server ==
Need to fill this out, right now it's a manual verification, db edit and reset.
Need to fill this out, right now it's a manual verification, db edit and reset.
= DNS node lookup =
= DNS node lookup =