-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Dmitriy, Unbound 1.0.2 calculates the maximum number of open files. And checks if that is going to work. So that it does not start OK, but later on, when it is busy, fails. This error is because the select system call has a hardcoded limit of 1024 (limited by the system). Libevent does not work for you? OK an alternative. Compile unbound with ./configure --without-pthreads Then, you can even set the outgoing-range to 256, or 512 or 768 File descriptors are less of a problem. The downside is unbound will fork processes, and every process has it's own cache memory. So it uses more memory, 8x more memory with 8 'num-threads:' setting. On the plus side, its 10-20% faster :-) Best regards, ~ Wouter Dmitriy Demidov wrote: | Hello unbound-users! | | I'm runing unbound-1.0.2 installed from ports, under FreeBSD 7.0 | Unbound is installed without libevent. Yesterday I have done portupgade from | unbound-1.0.1 to unbound-1.0.2 | | Now I met the following problem - Unbound do not starts. I found the reasone - | it is because of value of num-threads set. Old Unbound 1.0.1 configuration | has been set to use num-threads: 8 , but Unbound 1.0.2 can be started only | with setting num-threads: to 3 or less. | | When I try to start Unbound with num-threads: 4 or more, unbound says to me | that: | | # /usr/local/etc/rc.d/unbound start | Starting unbound. | [1218219064] unbound[3358:0] error: too many file descriptors requested. The | builtinmini-event cannot handle more than 1024. Config for less fds or | compile with libevent | [1218219064] unbound[3358:0] fatal error: configuration needs too many file | descriptors | | --- | | My system is configured this way: | | ulimit -a | core file size (blocks, -c) 0 | data seg size (kbytes, -d) 524288 | file size (blocks, -f) unlimited | max locked memory (kbytes, -l) unlimited | max memory size (kbytes, -m) unlimited | open files (-n) 20095 | pipe size (512 bytes, -p) 1 | stack size (kbytes, -s) 65536 | cpu time (seconds, -t) unlimited | max user processes (-u) 5547 | virtual memory (kbytes, -v) unlimited | | --- | | My unbound.conf: | | server: | verbosity: 0 | #statistics-interval: 3600 | #num-threads: 8 | num-threads: 3 | interface: 0.0.0.0 | port: 53 | outgoing-range: 256 | msg-cache-size: 16m | msg-cache-slabs: 4 | num-queries-per-thread: 1024 | rrset-cache-size: 32m | rrset-cache-slabs: 4 | cache-max-ttl: 86400 | infra-host-ttl: 900 | infra-lame-ttl: 900 | infra-cache-slabs: 4 | infra-cache-numhosts: 10000 | infra-cache-lame-size: 10k | do-ip4: yes | do-ip6: no | do-udp: yes | do-tcp: yes | do-daemonize: yes | | access-control: 0.0.0.0/0 refuse | access-control: 127.0.0.0/8 allow | access-control: ::0/0 refuse | access-control: ::1 allow | access-control: ::ffff:127.0.0.1 allow | | chroot: "/usr/local/etc/unbound" | username: "unbound" | directory: "/usr/local/etc/unbound" | #logfile: "/usr/local/etc/unbound/unbound.log" | logfile: "" | use-syslog: no | pidfile: "/usr/local/etc/unbound/unbound.pid" | root-hints: "/usr/local/etc/unbound/named.cache" | | identity: "DNS" | version: "1.0" | hide-identity: yes | hide-version: yes | harden-glue: yes | do-not-query-address: 127.0.0.1/8 | do-not-query-address: ::1 | do-not-query-localhost: yes | module-config: "iterator" | | --- | | AFAIK my unbound configuration with num-threads: 4 will requests only 256x4 = | 1024 file descriptors + 20 for TCP. In the same time there is system wide | ilimit for 20095 file descriptors... | | Do this behaviour is because of hard coded threshold in Unbound? | If file descriptors count is >= 1024 and no libevent is used, then Unbound | will stops with this error message? | | | You see, right now, under FreeBSD there is only libevent 1.3e available in | ports, and I do not want to use it because of problems that it produced to me | before... :( I have a negative experience with Unbound 1.0 and libevent | 1.3e, so I do not want to use it. This libevent version makes Unbound | unstable. | | _______________________________________________ | Unbound-users mailing list | Unbound-users at unbound.net | http://unbound.nlnetlabs.nl/mailman/listinfo/unbound-users -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAkif6vkACgkQkDLqNwOhpPjcQwCgnr4/Y5EdGrSys+VjbwMPXuQS UyUAn0oB7CKpDmKs2ZQg6TuuNz1Sby3c =bCdF -----END PGP SIGNATURE-----