Writeable file already in use

[Sathyan Arjunan]

Team,

Recently, I updated my bind from 9.9.5 to 9.9.8-P2 from then I seen
problems with me named configuration. Interestingly, I seen this problem
only on my slaves NOT on Master DNS.

I am using multiple zones pointing to a same file. This configuration has
been in place for nearly 10 years with no issues...

Zone config on Master: ###No issues with Master###

 zone "domain1.com." {type master; file "db.file-1"; };
 zone "domain2.com." {type master; file "db.file-1"; };
 zone "domain3.com." {type master; file "db.file-1"; };

Zone config on Slave:

zone "domain1.com." {type slave; file "db.file-1"; masters { x.x.x.x; };
allow-query { any; }; };
zone "domain2.com." { type slave; file "db.file-1"; masters { x.x.x.x; };
allow-query { any; }; };
zone "domain3.com." { type slave; file "db.file-1"; masters{ x.x.x.x; };
allow-query { any; }; };

Below is the errors i seen from named on my slave dns

: named.conf:584: writeable file 'db.file-1': already in use: named.conf:194


Please advise...
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