[SNMP4J] SNMP over TCP socket timeout
Frank Fock
fock at agentpp.com
Fri Jul 10 22:34:05 CEST 2009
The reason is most likely a too big PDU which
cannot be processed by the agent. That's all.
Frank
lalit patel wrote:
> Thanks Frank for your reply.
>
> But socket timeout causes connection to close which trigger SNMP request
> time out. I have already tried setConnectionTimeout method to increase
> timeout period but it did not work. For your information I want to tell
> you that I am querying an agent lying behind NAT at a remote site. For
> small number of variable bindings (about 70) it works fine but over that
> it just shows socket time out in log and at manager side SNMP request
> timeout occur.
>
> what could be the possible reasons ??
>
> thanks
>
> with kind regards
>
> lalit
>
>
>
> On Fri, Jul 10, 2009 at 3:21 AM, Frank Fock <fock at agentpp.com
> <mailto:fock at agentpp.com>> wrote:
>
> Hi,
>
> The timeout does not cause any problem other
> than a log output, right?
>
> If you want to change it, use:
> http://www.snmp4j.org/doc/org/snmp4j/transport/DefaultTcpTransportMapping.html#setConnectionTimeout(long)
> <http://www.snmp4j.org/doc/org/snmp4j/transport/DefaultTcpTransportMapping.html#setConnectionTimeout%28long%29>
>
> Best regards,
> Frank
>
>
> lalit patel wrote:
>
> Hi all
>
> I am facing socket timout problem in SNMP over TCP. Log shows
> the following
> messages.....................
>
> 667672 [RequestPool.0] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping - Looking up
> connection for
> destination '172.16.21.201/52303 <http://172.16.21.201/52303>'
> returned: SocketEntry[peerAddress=
> 172.16.21.201/52303,socket=Socket[addr=/172.16.21.201,port=52303,localport=3333],lastUse=MonJul
> <http://172.16.21.201/52303,socket=Socket%5Baddr=/172.16.21.201,port=52303,localport=3333%5D,lastUse=MonJul>
> 06 16:47:58 IST 2009]
> 667672 [RequestPool.0] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping - {
> 172.16.21.201/52302=SocketEntry[peerAddress=172.16.21.201/52302,socket=Socket[unconnected],lastUse=MonJul
> <http://172.16.21.201/52302=SocketEntry%5BpeerAddress=172.16.21.201/52302,socket=Socket%5Bunconnected%5D,lastUse=MonJul>
> 06 16:47:39 IST 2009],
> 172.16.21.201/52303=SocketEntry[peerAddress=172.16.21.201/52303,socket=Socket[addr=/172.16.21.201,port=52303,localport=3333],lastUse=MonJul
> <http://172.16.21.201/52303=SocketEntry%5BpeerAddress=172.16.21.201/52303,socket=Socket%5Baddr=/172.16.21.201,port=52303,localport=3333%5D,lastUse=MonJul>
> 06 16:47:58 IST 2009]}
> 667672 [DefaultTCPTransportMapping_172.16.5.35/3333] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping - Send message
> with length
> 1662 to 172.16.21.201/52303 <http://172.16.21.201/52303>:
> 30:82:06:7a:02:01:03:30:11:02:04:06:32:7e:fa:02:03:00:ff:ff:04:01:03:02:01:03:04:36:30:34:04:0a:80:00:13:70:04:4c:41:4c:49:54:02:02:01:24:02:02:02:9b:04:06:4d:44:35:44:45:53:04:0c:ad:37:1a:62:0a:5a:80:8c:24:ed:43:cd:04:08:00:00:01:24:ff:b4:c8:75:04:82:06:28:7f:85:3a:1f:7d:9c:fb:6c:12:b6:8b:ea:7c:c3:41:0c:57:ef:46:ed:48:1f:8d:c5:eb:9b:8c:79:e9:d1:b4:a2:b5:3d:36:60:41:c4:57:02:da:58:3c:c7:00:c2:52:5a:64:62:64:07:70:40:67:c8:62:f5:90:cb:a8:f8:7a:db:d6:cc:6e:53:30:5a:78:7d:ad:61:04:ff:cd:3d:5b:e1:16:b5:65:b7:f6:8e:33:16:ea:80:f0:ef:f1:72:45:3e:89:f5:32:9b:42:98:72:64:be:95:6c:85:d1:13:f5:7d:11:fd:8a:2d:9b:49:ea:0f:bd:ad:45:03:a7:0a:1e:87:0f:53:e3:b0:16:d9:1f:fc:36:7b:de:be:c1:a2:f6:be:77:27:4c:9b:3a:a5:54:7c:a3:55:41:93:fb:58:47:0c:05:68:88:b2:8b:50:91:c4:0c:72:6b:df:f7:71:b3:34:21:d2:a0:60:d4:07:1e:d1:95:d9:28:da:19:cf:7c:73:70:11:83:13:69:91:f9:4e:41:ec:94:2b:6e:2b:dd:79:78:76:91:49:cf:e5:c3:fb:3d:1c:26:48:0c:22:2a:6d:90:8d:88:61:ba:a6:2a:d3:af:30:6f:94:a7:c2:0a:8a:1
2:0e:40:
>
> d5:d3:d0:0f:7f:22:c9:2f:c1:a6:2d:fe:53:6b:3a:ae:be:ca:52:aa:d3:3d:7f:68:f4:35:36:cb:72:ea:7a:c6:96:8a:4b:cd:c2:ee:d5:97:d5:b5:ec:75:62:10:58:4d:39:88:e9:86:02:22:c7:b1:69:4a:ab:1c:50:53:6b:06:a1:b7:5d:69:b3:00:5a:7d:6a:5e:9b:0b:87:5e:44:e3:fb:7d:18:d0:7b:1e:f5:52:76:43:36:8a:b7:6a:e1:33:4c:fb:a4:65:4c:86:ce:34:a8:d6:70:f2:c1:30:78:fc:55:32:7c:6a:18:4d:62:95:49:ed:a0:d3:1e:ec:2f:fb:c0:3a:9d:c4:fe:a7:8a:a6:d7:35:df:52:76:30:02:9f:d9:f6:a5:45:74:15:34:8b:e1:c4:0a:d4:e1:cb:31:25:8c:e8:73:9e:48:77:d1:18:2e:3f:ac:23:ed:63:42:fc:0b:ff:6d:4a:c0:a3:04:86:67:61:6b:07:d8:19:f4:69:55:29:aa:fb:52:6e:f2:b5:7e:85:cd:8e:f2:85:4a:78:9b:f3:49:b9:6f:6a:be:36:bb:6f:63:c6:60:b4:48:f4:c3:e0:40:97:10:1b:f9:5a:73:15:07:75:55:8c:b7:5b:e7:4e:78:5d:9d:54:de:a6:92:1f:f5:88:6e:c1:ed:43:48:f1:a6:c6:8f:a1:c1:16:13:46:0c:15:25:61:9f:63:72:2e:39:92:34:f0:d3:e5:59:2a:b3:9b:4a:5e:61:2d:05:3c:b4:4c:74:2e:49:87:1b:42:e7:be:a4:f2:f9:b9:f3:80:28:75:01:61:e9:d6:c1:e7:84:c1:cf:79:c0:e4:2a:65:a1:25:40:06:cc:a8
:9f:56:
> 77:76:51:79:07:ea:f5:69:fa:33:d3:a1:1d:45:66:13:03:80:32:3e:e4:22:0f:34:54:78:a6:ab:6c:5d:99:a0:d4:66:28:85:76:39:a0:4e:d7:ff:84:39:09:a3:23:f5:24:2f:ac:b1:ee:3d:37:af:85:4b:62:91:f3:2d:64:ee:05:aa:61:2a:53:a7:95:f4:0b:a6:00:84:b9:72:22:01:8c:d7:b5:36:46:c9:3f:2d:15:cf:eb:03:52:66:a9:41:5b:7f:39:b9:60:7b:be:b5:b5:bc:1d:3a:c3:70:67:cc:4a:86:7c:36:26:5e:0d:3a:4d:1d:5c:33:fd:77:e6:ec:81:95:41:d9:b7:b7:8e:b4:ed:25:f4:18:61:33:79:43:88:43:68:42:72:9f:f6:21:fa:35:2e:da:de:18:06:ce:b8:72:fe:55:c6:71:18:e8:8b:c3:5c:aa:a0:13:c1:cf:ee:67:c3:4d:68:a3:04:bd:af:4f:75:c4:20:b7:5f:79:73:bd:33:1d:d0:2f:bc:d2:90:a5:3c:28:0c:00:68:7a:b3:d6:b2:c6:66:89:1d:14:ed:f4:1d:7a:9a:51:47:04:7c:5b:af:85:c2:ef:08:19:a7:0e:5e:3c:34:03:10:6f:f1:0f:89:d8:a2:d3:71:08:c7:4c:ed:b2:64:eb:9a:e6:1d:56:1a:0c:68:3d:ac:52:45:5d:c2:fd:31:58:1e:09:54:bb:ed:52:50:2e:6c:50:8c:e9:f0:3d:e7:26:25:ff:ef:5b:8c:0a:ae:65:e5:62:f3:f6:a9:db:0b:1e:bf:df:1d:d1:d0:20:1f:ec:20:80:f1:59:1b:37:c6:4f:46:d9:e2:f5:21:c8:d9:0f:4c:6a
:8b:a0:
> bd:69:81:c0:bd:ff:e9:af:1d:ef:5a:12:41:d4:b5:e9:c8:d1:9d:3c:8f:60:39:34:23:f1:de:fe:de:b3:e0:9a:6e:19:77:cb:95:ad:e7:eb:ce:2e:16:d1:17:49:71:76:e7:16:84:00:a3:7a:99:ed:36:a8:34:c4:b3:2c:e9:39:7f:8c:1a:31:4f:93:9b:2e:88:94:ca:d6:46:33:f3:35:2c:cc:ac:b8:32:2f:95:ea:1d:27:76:d4:86:78:0d:b2:85:ed:77:47:e0:59:c9:49:d2:a3:f8:5f:b5:86:2a:e9:5d:ac:fb:9f:3d:43:04:36:70:f4:96:d1:a7:c1:c9:55:7a:f6:76:96:92:0a:98:28:04:23:3b:6a:60:b6:80:5f:65:fe:91:62:ba:c7:c3:36:38:3b:45:9d:0a:d8:40:27:b1:a8:c1:6d:f3:4b:a0:e5:bf:ce:14:b7:3c:6b:15:9f:bc:5c:6e:2a:16:60:25:e1:2c:b5:6e:8f:17:f9:32:ff:6e:b3:38:81:d2:eb:1d:aa:26:cd:c3:15:16:32:84:22:f8:7a:c7:8c:10:b4:f3:95:87:ca:ae:a9:d3:30:2d:92:2d:c0:ad:40:f0:2e:a7:e2:3a:00:f9:b5:48:88:cc:02:9d:89:95:85:a2:2f:2e:f9:9b:4a:49:7f:97:ce:f3:d7:08:82:79:5b:cf:ac:68:53:8f:b1:5a:c9:d0:2e:21:95:93:85:71:af:df:f9:73:28:f0:39:2a:9f:2a:b2:b2:fa:29:40:cd:0a:8f:9f:19:19:4f:85:c6:21:c2:df:a5:99:f8:d5:d2:f7:9c:80:c4:37:e3:78:56:02:6d:66:d3:ea:38:6b:8f:0b:80:17:26:8d
:18:14:
> 41:fa:de:48:3c:31:77:5d:d5:8b:49:3d:c5:2d:5b:e9:b8:38:e9:df:1a:b8:f2:fd:e4:86:2b:cf:5f:13:30:bc:8a:d4:9e:98:b0:e5:27:fc:79:65:19:75:5e:26:2a:68:ff:04:9c:cf:ce:ef:56:e2:63:69:89:87:36:fb:a2:83:2a:2f:55:2c:71:2e:23:70:51:05:f3:14:04:cd:30:15:7c:c1:18:e7:62:ac:40:c3:98:85:9f:1f:4d:71:1d:14:57:31:63:57:91:7e:62:1c:d8:aa:e4:ea:ad:47:7c:3c:02:24:b4:4f:97:e5:b9:4f:9e:04:a8:2d:8e:c9:5d:3f:7e:e8:98:c7:df:20:61:ea:8f:90:7c:74:b1:39:75:19:cc:70:94:af:bd:57:f8:65:e9:a0:89:a8:68:df:95:33:75:7a:e9:ec:0a:55:7f:b5:28:fc:80:b2:d9:bb:e3:3f:27:97:8a:93:6f:c8:09:2c:ae:f3:af:22:2d:f8:90:f2:a1:48:52:a1:6f:a3:bf:45:a4:3d:07:db:3f:7f:ea:97:f3:62:19:87:d5:2a:a8:ad:38:42:86:12:92:b1:68:20:b6:8d:30:03:dc:01:77:41:49:6c:2a:72:82:6e:0c:3c:28:1d:40:2f:c2:99:24:70:8e:a9:ca:00:d7:bf:05:5d:d7:66:fe:77:5b:90:57:e1:df:66:3e:dd:6f:80:a8:e6:79:7d:9d:ff:28:8a:29:87:21:2c:5b:8d:43:8b:63:12:81:73:d5:be:27:66:3b:d2:fa:f1:b8:51:e7:4e:47:ca:b0:b0:6f:5d:8c:5d:98:97:04:55:ce:61:b5:d3:03:01:45:5c:2a:16:85:58:ba:18
:15:ec:
> 18:60:d7:00:f0:8d:e7:64:8b:b3:25:9f:8d
>
> 707109 [Timer-1] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping -
> Scheduling 813
> 707937 [Timer-1] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping -
> Socket has not been used for 60015 micro seconds, closing it
> 707937 [Timer-1] INFO
> org.snmp4j.transport.DefaultTcpTransportMapping -
> Socket to 172.16.21.201/52302 <http://172.16.21.201/52302>
> closed due to timeout
> 717094 [DefaultTCPTransportMapping_172.16.5.35/3333] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping - Reading
> header -1 bytes
> from 172.16.21.201/52303 <http://172.16.21.201/52303>
> 717094 [DefaultTCPTransportMapping_172.16.5.35/3333] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping - Socket closed
> remotely
> 717094 [DefaultTCPTransportMapping_172.16.5.35/3333] DEBUG
> org.snmp4j.transport.TcpTransportMapping - Firing transport
> state event:
> org.snmp4j.transport.TransportStateEvent[source=org.snmp4j.transport.DefaultTcpTransportMapping at 16b13c7
> ,peerAddress=
> 172.16.21.201/52303,newState=2,cancelled=false,causingException=null
> <http://172.16.21.201/52303,newState=2,cancelled=false,causingException=null>]
> 727109 [Timer-1] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping -
> Scheduling 49985
> 717094 [DefaultTCPTransportMapping_172.16.5.35/3333] DEBUG
> org.snmp4j.transport.TcpTransportMapping - Firing transport
> state event:
> org.snmp4j.transport.TransportStateEvent[source=org.snmp4j.transport.DefaultTcpTransportMapping at 16b13c7
> ,peerAddress=
> 172.16.21.201/52303,newState=2,cancelled=false,causingException=null
> <http://172.16.21.201/52303,newState=2,cancelled=false,causingException=null>]
> 727109 [Timer-1] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping -
> Scheduling 49985 777094 [Timer-1] DEBUG
> org.snmp4j.transport.DefaultTcpTransportMapping - Socket has
> not been used
> for 60000 micro seconds, closing it
> 777094 [Timer-1] INFO
> org.snmp4j.transport.DefaultTcpTransportMapping -
> Socket to 172.16.21.201/52303 <http://172.16.21.201/52303>
> closed due to timeout
>
>
>
>
> Is my guess that small socket timeout period is the cause of
> problem is
> right ?
> I think 60000 microsecond socket idle timeout is very small. How
> can I
> increase this value ?
>
> any suggestion ??
>
>
> thanks in advance
>
> Lalit Patel
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>
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