unbound-control reload timeout

[loopguard404]

Describe the bug

Unbound-control periodically stops responding to reload or stats requests. During the call to unbound-control, the timeout completes. Only restarting the service helps

To reproduce Steps to reproduce the behavior:

The problem is floating, I can’t force it to reproduce

System:

• Unbound version: 1.16.2
• OS: Oracle 8
• unbound -V output:

  Version 1.16.2
  Configure line: --build=x86_64-redhat-linux-gnu --host=x86_64-redhat-linux-gnu --program-prefix= --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/var/lib --mandir=/usr/share/man --infodir=/usr/share/info --with-pythonmodule --with-pyunbound PYTHON=/usr/libexec/platform-python --with-libevent --with-pthreads --with-ssl --disable-rpath --disable-static --enable-relro-now --enable-pie --enable-subnet --enable-ipsecmod --with-conf-file=/etc/unbound/unbound.conf --with-pidfile=/var/run/unbound/unbound.pid --enable-sha2 --disable-gost --enable-ecdsa --with-rootkey-file=/var/lib/unbound/root.key --enable-linux-ip-local-port-range

  Additional information Add any other information that you may have gathered about the issue here.

[loopguard404]

@gthess I still continue to face this problem, please help me

[gthess]

I guess Unbound does work in the meantime, it just doesn't respond to control commands from what I understand. You can check with top if it consumes CPU or not. Apart from that there is little information here. Things I can point to:

• Update to a newer Unbound, there have been numerous bugfixes since 1.16.2 :)
• If you have very big authoritative zones or RPZ zones, they may take "some" time during zone updates and your control command may coincide with that;
• Increasing verbosity (4 would be enough but it will create a lot of output, try 3 at first) and sharing the logs when that happens would be helpful;
• Sharing your configuration could help.