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ajermakovics / jvm-mon

Console-based JVM monitoring tool
https://ajermakovics.github.io/jvm-mon/
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ConnectIOException at startup #26

Open perrefe opened 6 years ago

perrefe commented 6 years ago

This maybe a little weird but it's really happening and I don't realize why.

Just launching bin/jvm-mon with:

java.rmi.ConnectIOException: Exception creating connection to: 192.168.0.150; nested exception is:
    java.net.NoRouteToHostException: No route to host (Host unreachable)
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:631)
    at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
    at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:129)
    at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227)
    at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179)
    at com.sun.proxy.$Proxy0.newClient(Unknown Source)
    at javax.management.remote.rmi.RMIConnector.getConnection(RMIConnector.java:2430)
    at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:308)
    at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270)
    at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:229)
    at com.jvmtop.openjdk.tools.ProxyClient.tryConnect(ProxyClient.java:392)
    at com.jvmtop.openjdk.tools.ProxyClient.connect(ProxyClient.java:354)
    at com.jvmtop.monitor.VMInfo.attachToVM(VMInfo.java:219)
    at com.jvmtop.monitor.VMInfo.processNewVM(VMInfo.java:186)
    at com.jvmtop.view.VMOverviewView.scanForNewVMs(VMOverviewView.java:176)
    at JvmMon.update(JvmMon.java:50)
    at JvmMon.<init>(JvmMon.java:45)
    at JvmMon.main(JvmMon.java:27)
Caused by: java.net.NoRouteToHostException: No route to host (Host unreachable)
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at java.net.Socket.connect(Socket.java:538)
    at java.net.Socket.<init>(Socket.java:434)
    at java.net.Socket.<init>(Socket.java:211)
    at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
    at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
    ... 18 more

Interfaces Ip addr:

ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether f4:03:43:57:41:6c brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.200/24 brd 192.168.0.255 scope global em1
       valid_lft forever preferred_lft forever
    inet6 fe80::f603:43ff:fe57:416c/64 scope link
       valid_lft forever preferred_lft forever
3: em2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether f4:03:43:57:41:6d brd ff:ff:ff:ff:ff:ff
4: em3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether f4:03:43:57:41:6e brd ff:ff:ff:ff:ff:ff
5: em4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether f4:03:43:57:41:6f brd ff:ff:ff:ff:ff:ff

Kernel IP routing table

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         192.168.0.1     0.0.0.0         UG        0 0          0 em1
192.168.0.0     0.0.0.0         255.255.255.0   U         0 0          0 em1
ajermakovics commented 4 years ago

Released a new version which is a complete rewrite: https://github.com/ajermakovics/jvm-mon/releases