nsd users - Jul 2020 - warning: process terminated with status 11

Hello,

nsd-4.3.1 acting as secondary for a zone (26 MB, 200k records)
on every (but the first) update one NSD process generate ~10k lines
"service remaining TCP connections" and then terminating with $subject

NSD is compile options contain

        --enable-pie \
        --enable-relro-now \
        --enable-recvmmsg \
        --enable-root-server \
        --enable-checking \
        --enable-ratelimit \
        --enable-ratelimit-default-is-off \
        --enable-packed \
        --enable-dnstap \
        --disable-tcp-fastopen

NSD run in foreground (nsd -d) and the runtime options contain

server:
        confine-to-zone: yes
        database: ""
        debug-mode: yes
        drop-updates: yes
        ipv4-edns-size: 1220
        ipv6-edns-size: 1220
        minimal-responses: yes
        outgoing-tcp-mss: 1220
        refuse-any: yes
        statistics: 86400
        tcp-mss: 1220
        verbosity: 9
+ zone definitions

an older version 4.2.4 (prior update) had the same issue / logs
an other instance, also 4.3.1, also in secondary mode but a smaller zone (40k,
500 records), don't generate such logs

Andreas

Am 19.06.20 um 08:04 schrieb A. Schulze via nsd-users:
> nsd-4.3.1 acting as secondary for a zone (26 MB, 200k records)
> on every (but not the first) update one NSD process generate ~10k lines
"service remaining TCP connections" and then terminating with $subject

Hello,

are there any further information I should provide?

Andreas