Question

我正在使用SNMP4J发送SNMPv2陷阱。这个java应用程序将运行，发送陷阱并退出。

现在我有一个问题，每当第一轮我运行这个应用程序时，它执行得非常快。之后，从第二轮开始，完成snmp.send（pdu，comtarget）平均需要50多秒;

希望可以从你们那里得到一些想法

我在下面添加了我的代码和输出：

public void sendSnmpV2Trap(String message) {
    try {
        // Create Transport Mapping
        long start = System.currentTimeMillis();
        TransportMapping transport = new DefaultUdpTransportMapping();
        transport.listen();
        long end = System.currentTimeMillis();
        long diff = end - start;
        LOGGER.debug("TransportMapping listening took "+ diff + " ms");

        start = System.currentTimeMillis();
        // Create Target
        CommunityTarget comtarget = new CommunityTarget();
        comtarget.setCommunity(new OctetString(community));
        comtarget.setVersion(SnmpConstants.version2c);
        comtarget.setAddress(new UdpAddress(ipAddress + "/" + port));
        comtarget.setRetries(2);
        comtarget.setTimeout(500);

        // Create PDU for V2
        PDU pdu = new PDU();

        // variable binding for Enterprise Specific objects, Severity (should be defined in MIB file)
        pdu.add(new VariableBinding(SnmpConstants.snmpTrapOID, new OctetString("1.2")));            
        pdu.add(new VariableBinding(new OID(trapOid), new OctetString(message)));
        pdu.setType(PDU.NOTIFICATION);
        end = System.currentTimeMillis();
        diff = end - start;
        LOGGER.debug("Create object took "+ diff + " ms");

        start = System.currentTimeMillis();
        // Send the PDU
        Snmp snmp = new Snmp(transport);            
        LOGGER.info("Sending V2 Trap to " + ipAddress + " on Port " + port+". Message="+ message);
        snmp.send(pdu, comtarget);
        snmp.close();
        end = System.currentTimeMillis();
        diff = end - start;
        LOGGER.debug("Send trap took "+ diff + " ms");

    } catch (Exception e) {
        LOGGER.error("Error in Sending V2 Trap to " + ipAddress + " on Port " + port);
        LOGGER.error("Exception Message = " + e.getMessage());
    }
}

输出：

    [root@responder01 healthCheck]# java -jar healthChecker.jar --test
    2015-04-17 10:31:21 DEBUG SnmpJTrapSender:113 - TransportMapping listening took 19 ms
    2015-04-17 10:31:21 DEBUG SnmpJTrapSender:133 - Create object took 6 ms
    2015-04-17 10:31:21 INFO  SnmpJTrapSender:138 - Sending V2 Trap to 192.168.6.45 on Port 162. Message=testing on Apr 17, 2015 10:31:21 AM
    2015-04-17 10:31:21 DEBUG SnmpJTrapSender:143 - Send trap took 79 ms
    [root@responder01 healthCheck]# java -jar healthChecker.jar --test
    2015-04-17 10:31:24 DEBUG SnmpJTrapSender:113 - TransportMapping listening took 18 ms
    2015-04-17 10:31:24 DEBUG SnmpJTrapSender:133 - Create object took 8 ms
    2015-04-17 10:32:32 INFO  SnmpJTrapSender:138 - Sending V2 Trap to 192.168.6.45 on Port 162. Message=testing on Apr 17, 2015 10:31:23 AM
    2015-04-17 10:32:32 DEBUG SnmpJTrapSender:143 - Send trap took 68546 ms

Answer 1

根据您输出的代码

    LOGGER.debug("Create object took "+ diff + " ms");

    start = System.currentTimeMillis();
    // Send the PDU
    Snmp snmp = new Snmp(transport);            
    LOGGER.info("Sending V2 Trap to " + ipAddress + " on Port " + port+". Message="+ message);

花时间。

这里没有什么需要花费这么多时间，所以也许整个系统都在爬行。

SNMP4J v2c陷阱发送速度很慢

1 个答案: