On Tue, Dec 30, 2014 at 11:09:44AM -0200, Raimundo Santos wrote:
> Hello misc@!
>
> I have a router (peaking at 70Mbps of aggregated traffic) that acts as a
> recursive internal DNS server too (this configuration will die
> soon, as my traffic is growing), but Unbound keep saying, in
> /var/log/messages:
>
> Dec 30 09:57:07 myhost unbound: [3873:0] error: can't create socket: Too
> many open files
> Dec 30 09:57:08 myhost last message repeated 20284 times
> Dec 30 10:26:48 myhost unbound: [3873:0] error: can't create socket: Too
> many open files
> Dec 30 10:26:50 myhost last message repeated 24896 times
>
> Sometimes it says:
>
> Dec 27 21:49:19 myhost unbound: [2565:0] notice: sendto failed: No buffer
> space available
>
> I have:
>
> kern.maxfiles=16384
> kern.somaxconn=16384
>
> And in login.conf:
>
> daemon:\
> :ignorenologin:\
> :datasize=infinity:\
> :maxproc=infinity:\
> :openfiles-cur=4096:\
> :openfiles-max=8192:\
> :stacksize-cur=8M:\
> :localcipher=blowfish,9:\
> :tc=default:
>
> unbound:\
> :ignorenologin:\
> :datasize=infinity:\
> :maxproc=infinity:\
> :openfiles-cur=8192:\
> :openfiles-max=16384:\
> :stacksize-cur=32M:\
> :localcipher=blowfish,9:\
> :tc=default:
>
> With many resources just for Unbound, how can it keep complaining?
There's an undocumented "feature" with unbound: it (only) sets its
resource limits based on the class of its user (_unbound by default).
So set the class of the _unbound user to unbound and you're all set.
-Otto
>
> Thandk you in advance, and happy new year!
> Raimundo Santos
>
> --
>
> Here are some more info...
>
> # systat -B mbufs
>
>
> 1 users Load 0.16 0.12 0.09 Tue Dec 30 11:02:00
> 2014
>
> IFACE LIVELOCKS SIZE ALIVE LWM HWM CWM
>
> System 0 256 194 93
>
> 2048 184 442
>
> lo0
>
> em0 2048 90 10 256 90
>
> xl0
>
> re0
>
> re1
>
> enc0
>
> pflog0
>
>
> ...and the dmesg:
>
> OpenBSD 5.6 (GENERIC) #310: Fri Aug 8 00:14:24 MDT 2014
> dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC
> real mem = 8502595584 (8108MB)
> avail mem = 8267517952 (7884MB)
> mpath0 at root
> scsibus0 at mpath0: 256 targets
> mainbus0 at root
> bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe84b0 (59 entries)
> bios0: vendor Intel Corp. version "NBG4310H.86A.0051.2008.0804.1738" date
> 08/04/2008
> bios0: Intel Corporation DP43TF
> acpi0 at bios0: rev 2couldn't map rsdt
> , can't load tables
> cpu0 at mainbus0: (uniprocessor)
> cpu0: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2394.30 MHz
> cpu0:
> FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,NXE,LONG,LAHF,PERF
> cpu0: 4MB 64b/line 16-way L2 cache
> cpu0: smt 0, core 0, package 0
> mtrr: Pentium Pro MTRR support, 7 var ranges, 88 fixed ranges
> pci0 at mainbus0 bus 0
> pchb0 at pci0 dev 0 function 0 "Intel G45 Host" rev 0x03
> ppb0 at pci0 dev 1 function 0 "Intel G45 PCIE" rev 0x03: irq 11
> pci1 at ppb0 bus 1
> vga1 at pci1 dev 0 function 0 "NVIDIA GeForce 8600 GT" rev 0xa1
> wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
> wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
> vendor "Intel", unknown product 0x2e24 (class communications subclass
> miscellaneous, rev 0x03) at pci0 dev 3 function 0 not configured
> em0 at pci0 dev 25 function 0 "Intel ICH10 R BM V" rev 0x00: irq 10,
> address 00:1c:c0:91:9f:c3
> uhci0 at pci0 dev 26 function 0 "Intel 82801JI USB" rev 0x00: irq 11
> uhci1 at pci0 dev 26 function 1 "Intel 82801JI USB" rev 0x00: irq 5
> uhci2 at pci0 dev 26 function 2 "Intel 82801JI USB" rev 0x00: irq 3
> ehci0 at pci0 dev 26 function 7 "Intel 82801JI USB" rev 0x00: irq 3
> usb0 at ehci0: USB revision 2.0
> uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
> ppb1 at pci0 dev 28 function 0 "Intel 82801JI PCIE" rev 0x00: irq 7
> pci2 at ppb1 bus 2
> ppb2 at pci0 dev 28 function 3 "Intel 82801JI PCIE" rev 0x00: irq 4
> pci3 at ppb2 bus 3
> jmb0 at pci3 dev 0 function 0 "JMicron JMB368 IDE" rev 0x00
> pciide0 at jmb0: DMA, channel 0 wired to native-PCI, channel 1 wired to
> native-PCI
> pciide0: using irq 4 for native-PCI interrupt
> pciide0: channel 0 disabled (no drives)
> pciide0: channel 1 disabled (no drives)
> uhci3 at pci0 dev 29 function 0 "Intel 82801JI USB" rev 0x00: irq 11
> uhci4 at pci0 dev 29 function 1 "Intel 82801JI USB" rev 0x00: irq 4
> uhci5 at pci0 dev 29 function 2 "Intel 82801JI USB" rev 0x00: irq 3
> ehci1 at pci0 dev 29 function 7 "Intel 82801JI USB" rev 0x00: irq 11
> ehci1: timed out waiting for BIOS
> usb1 at ehci1: USB revision 2.0
> uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
> ppb3 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x90
> pci4 at ppb3 bus 4
> xl0 at pci4 dev 0 function 0 "3Com 3c905C 100Base-TX" rev 0x74: irq 10,
> address 00:50:da:0d:d8:b9
> bmtphy0 at xl0 phy 24: 3C905C internal PHY, rev. 6
> re0 at pci4 dev 2 function 0 "Realtek 8169" rev 0x10: RTL8169/8110SB
> (0x1000), irq 5, address 00:0c:76:86:02:37
> rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 3
> re1 at pci4 dev 4 function 0 "Realtek 8169" rev 0x10: RTL8169/8110SB
> (0x1000), irq 10, address 00:0c:76:87:03:23
> rgephy1 at re1 phy 7: RTL8169S/8110S PHY, rev. 3
> pcib0 at pci0 dev 31 function 0 "Intel 82801JIB LPC" rev 0x00
> ahci0 at pci0 dev 31 function 2 "Intel 82801JI AHCI" rev 0x00: irq 4, AHCI
> 1.2
> scsibus1 at ahci0: 32 targets
> sd0 at scsibus1 targ 0 lun 0: <ATA, ST1000DM003-1CH1, CC47> SCSI3 0/direct
> fixed naa.5000c5006585bf25
> sd0: 953869MB, 512 bytes/sector, 1953525168 sectors
> ichiic0 at pci0 dev 31 function 3 "Intel 82801JI SMBus" rev 0x00: irq 3
> iic0 at ichiic0
> spdmem0 at iic0 addr 0x50: 2GB DDR2 SDRAM non-parity PC2-6400CL5
> spdmem1 at iic0 addr 0x51: 2GB DDR2 SDRAM non-parity PC2-6400CL5
> spdmem2 at iic0 addr 0x52: 2GB DDR2 SDRAM non-parity PC2-6400CL5
> spdmem3 at iic0 addr 0x53: 2GB DDR2 SDRAM non-parity PC2-6400CL5
> usb2 at uhci0: USB revision 1.0
> uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb3 at uhci1: USB revision 1.0
> uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb4 at uhci2: USB revision 1.0
> uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb5 at uhci3: USB revision 1.0
> uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb6 at uhci4: USB revision 1.0
> uhub6 at usb6 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> usb7 at uhci5: USB revision 1.0
> uhub7 at usb7 "Intel UHCI root hub" rev 1.00/1.00 addr 1
> isa0 at pcib0
> isadma0 at isa0
> pckbc0 at isa0 port 0x60/5
> pckbd0 at pckbc0 (kbd slot)
> pckbc0: using irq 1 for kbd slot
> wskbd0 at pckbd0: console keyboard, using wsdisplay0
> pcppi0 at isa0 port 0x61
> spkr0 at pcppi0
> wbsio0 at isa0 port 0x2e/2: W83627DHG rev 0x23
> wbsio0 port 0x290/2 not configured
> vscsi0 at root
> scsibus2 at vscsi0: 256 targets
> softraid0 at root
> scsibus3 at softraid0: 256 targets
> root on sd0a (ea2168ac5c1b2375.a) swap on sd0b dump on sd0b
