[nsd-users] "warning: diff: RR <madrid., RRSIG> rdata element 0 differs from RR num 0 rdata (rdata data)

Stephane Bortzmeyer bortzmeyer at nic.fr
Mon Feb 22 10:12:53 UTC 2016


I get strange error reports in my nsd log:

[2016-02-22 06:01:38.256] nsd[1466]: info: xfrd: zone . committed "received update to serial 2016
022200 at 2016-02-22T06:01:38 from 2001:559:8000::7"
[2016-02-22 06:01:38.257] nsd[1467]: warning: diff: RR <madrid., RRSIG> rdata element 0 differs f
rom RR num 0 rdata (rdata data)
[2016-02-22 06:01:38.257] nsd[1467]: warning: diff: RR <madrid., RRSIG> rdata element 4 differs f
rom RR num 1 rdata (rdata data)
[2016-02-22 06:01:38.257] nsd[1467]: warning: diff: RR <madrid., RRSIG> does not exist
[2016-02-22 06:01:38.257] nsd[1467]: warning: diff: RR <edu., RRSIG> rdata element 0 differs from
 RR num 0 rdata (rdata data)
[2016-02-22 06:01:38.257] nsd[1467]: warning: diff: RR <edu., RRSIG> rdata element 4 differs from
 RR num 1 rdata (rdata data)
[2016-02-22 06:01:38.257] nsd[1467]: warning: diff: RR <edu., RRSIG> does not exist
[Tons of similar messages]

[2016-02-22 06:01:38.306] nsd[1467]: warning: diff: RR <., RRSIG> does not exist
[2016-02-22 06:01:38.306] nsd[1467]: warning: diff: RR <edeka., RRSIG> rdata element 4 differs from RR num 0 rdata (rdata data)
[2016-02-22 06:01:38.306] nsd[1467]: warning: diff: RR <edeka., RRSIG> rdata element 0 differs from RR num 1 rdata (rdata data)
[2016-02-22 06:01:38.306] nsd[1467]: warning: diff: RR <edeka., RRSIG> does not exist
[2016-02-22 06:01:38.318] nsd[1467]: error: Failed to apply IXFR cleanly (deletes nonexistent RRs, adds existing RRs). Zone . contents is different from master, starting AXFR. Transfer received update to serial 2016022200 at 2016-02-22T06:01:38 from 2001:559:8000::7
[2016-02-22 06:01:38.318] nsd[1467]: info: zone . received update to serial 2016022200 at 2016-02-22T06:01:38 from 2001:559:8000::7 of 754764 bytes in 1.15702 seconds
[2016-02-22 06:01:38.320] nsd[1466]: error: xfrd: zone .: soa serial 2016022200 update failed, restarting transfer (notified zone)

This machine is a root name server (for the DNS Yeti project). The
problem appeared "recently" (for some value of "recent").

The main consequence is the filling of the logs but it may create
other problems. (The later zone transfer worked:

[2016-02-22 06:01:47.389] nsd[1466]: info: xfrd: zone . committed "received update to serial 2016022200 at 2016-02-22T06:01:47 from 240c:f:1:22::7"
[2016-02-22 06:01:47.466] nsd[1467]: info: zone . received update to serial 2016022200 at 2016-02-22T06:01:47 from 240c:f:1:22::7 of 824909 bytes in 7.15648 seconds
[2016-02-22 06:01:47.469] nsd[1466]: info: zone . serial 2016022101 is updated to 2016022200.

NSD version 4.1.7



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