Date: Wed, 27 Jan 2010 20:27:13 -0500 (EST) From: James Smallacombe <up@3.am> To: freebsd-questions@freebsd.org Subject: Re: named "error sending response: not enough free resources" Message-ID: <alpine.BSF.2.00.1001272021510.2763@ns3.pil.net> In-Reply-To: <D588AADC-6C59-4A60-BD2A-05ECF6E7A571@mac.com> References: <alpine.BSF.2.00.1001271322250.29151@ns3.pil.net> <979FD2CE-FCCE-4C61-8FA8-74D75E091C43@mac.com> <alpine.BSF.2.00.1001271604460.73419@ns3.pil.net> <D588AADC-6C59-4A60-BD2A-05ECF6E7A571@mac.com>
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On Wed, 27 Jan 2010, Chuck Swiger wrote: > On Jan 27, 2010, at 1:15 PM, James Smallacombe wrote: >>>> Jan 26 21:50:32 host named[667]: client <IP REMOVED>#57938: error >>>> sending response: not enough free resources > >>> indicates a problem sending UDP traffic; netstat -s output would be >> >> Unfortunately, I did not have time for netstats or tcpdumps when this >> was happening and I've not seen this log entry since yesterday evening. > > Unless you rebooted the machine again since the errors were reported, > the netstat output would still be relevant. Ok, I saw this at least once since the last reboot, so here are the tcp and udp portions of the netstat -s: tcp: 31422122 packets sent 23133142 data packets (3473553079 bytes) 314215 data packets (132175418 bytes) retransmitted 6579 data packets unnecessarily retransmitted 11 resends initiated by MTU discovery 5408494 ack-only packets (200066 delayed) 0 URG only packets 1237 window probe packets 868892 window update packets 1713629 control packets 28600984 packets received 17029642 acks (for 3351867346 bytes) 1256410 duplicate acks 73760 acks for unsent data 11363962 packets (548204663 bytes) received in-sequence 184682 completely duplicate packets (16657176 bytes) 2327 old duplicate packets 1468 packets with some dup. data (339128 bytes duped) 334018 out-of-order packets (337877573 bytes) 85687 packets (637782 bytes) of data after window 10 window probes 114047 window update packets 160975 packets received after close 1148 discarded for bad checksums 0 discarded for bad header offset fields 0 discarded because packet too short 9123 discarded due to memory problems 413250 connection requests 1504359 connection accepts 6 bad connection attempts 100 listen queue overflows 186225 ignored RSTs in the windows 1912682 connections established (including accepts) 2050764 connections closed (including 1022550 drops) 1058803 connections updated cached RTT on close 1065370 connections updated cached RTT variance on close 252114 connections updated cached ssthresh on close 3769 embryonic connections dropped 11958433 segments updated rtt (of 11574855 attempts) 285733 retransmit timeouts 12079 connections dropped by rexmit timeout 1884 persist timeouts 4 connections dropped by persist timeout 0 Connections (fin_wait_2) dropped because of timeout 385 keepalive timeouts 345 keepalive probes sent 40 connections dropped by keepalive 2663719 correct ACK header predictions 5996181 correct data packet header predictions 1520655 syncache entries added 58477 retransmitted 26560 dupsyn 20622 dropped 1504359 completed 137 bucket overflow 0 cache overflow 6190 reset 10206 stale 100 aborted 0 badack 47 unreach 0 zone failures 1541277 cookies sent 415 cookies received 21638 SACK recovery episodes 37110 segment rexmits in SACK recovery episodes 51620488 byte rexmits in SACK recovery episodes 240368 SACK options (SACK blocks) received 217836 SACK options (SACK blocks) sent 0 SACK scoreboard overflow udp: 9663633 datagrams received 0 with incomplete header 0 with bad data length field 549 with bad checksum 9609 with no checksum 12092 dropped due to no socket 49230 broadcast/multicast datagrams undelivered 0 dropped due to full socket buffers 0 not for hashed pcb 9601762 delivered 42443353 datagrams output 0 times multicast source filter matched James Smallacombe PlantageNet, Inc. CEO and Janitor up@3.am http://3.am =========================================================================
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