使用JConsole监视Docker中的Java应用程序
我想监视Java应用程序，使用JConsole在Docker容器中运行，但得到一个错误：
连接失败：JRMP连接build立期间出错; 嵌套的exception是java.net.SocketException;
我使用本指南中的下一个docker params（也使用了注释中的diff额外标志，如：Djava.rmi.server.hostname = 10.16.114.98 + –net = host，）
docker run -p 8080:8080 -p 9010:9010 --rm -e JAVA_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9010 -Dcom.sun.management.jmxremote.local.only=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.rmi.port=9010 -Dcom.sun.management.jmxremote.ssl=false" gateway 操作系统：红帽7
这是docker inspect的输出：
[ { "Id": "06df0e186f49297e217bab77c9101926bc2333c429d4551a151a64159a82c942", "Created": "2017-08-18T12:52:37.002174333Z", "Path": "/bin/sh", "Args": [ "-c", "echo \"The application will start in ${JHIPSTER_SLEEP}s...\" \u0026\u0026 sleep ${JHIPSTER_SLEEP} \u0026\u0026 java -Djava.security.egd=file:/dev/./urandom -jar /app.war" ], "State": { "Status": "running", "Running": true, "Paused": false, "Restarting": false, "OOMKilled": false, "Dead": false, "Pid": 22543, "ExitCode": 0, "Error": "", "StartedAt": "2017-08-18T12:52:38.539827439Z", "FinishedAt": "0001-01-01T00:00:00Z" }, "Image": "760fc9348dddb4ef6a3a031e6c75d31645ac811ce17a27289e462f265d21d5e7", "ResolvConfPath": "/var/lib/docker/containers/06df0e186f49297e217bab77c9101926bc2333c429d4551a151a64159a82c942/resolv.conf", "HostnamePath": "/var/lib/docker/containers/06df0e186f49297e217bab77c9101926bc2333c429d4551a151a64159a82c942/hostname", "HostsPath": "/var/lib/docker/containers/06df0e186f49297e217bab77c9101926bc2333c429d4551a151a64159a82c942/hosts", "LogPath": "/var/lib/docker/containers/06df0e186f49297e217bab77c9101926bc2333c429d4551a151a64159a82c942/06df0e186f49297e217bab77c9101926bc2333c429d4551a151a64159a82c942-json.log", "Name": "/desperate_hugle", "RestartCount": 0, "Driver": "devicemapper", "ExecDriver": "native-0.2", "MountLabel": "", "ProcessLabel": "", "AppArmorProfile": "", "ExecIDs": null, "HostConfig": { "Binds": null, "ContainerIDFile": "", "LxcConf": [], "Memory": 0, "MemoryReservation": 0, "MemorySwap": 0, "KernelMemory": 0, "CpuShares": 0, "CpuPeriod": 0, "CpusetCpus": "", "CpusetMems": "", "CpuQuota": 0, "BlkioWeight": 0, "OomKillDisable": false, "MemorySwappiness": -1, "Privileged": false, "PortBindings": { "8080/tcp": [ { "HostIp": "", "HostPort": "8080" } ], "9010/tcp": [ { "HostIp": "", "HostPort": "9010" } ] }, "Links": null, "PublishAllPorts": false, "Dns": [], "DnsOptions": [], "DnsSearch": [], "ExtraHosts": null, "VolumesFrom": null, "Devices": [], "NetworkMode": "default", "IpcMode": "", "PidMode": "", "UTSMode": "", "CapAdd": null, "CapDrop": null, "GroupAdd": null, "RestartPolicy": { "Name": "no", "MaximumRetryCount": 0 }, "SecurityOpt": null, "ReadonlyRootfs": false, "Ulimits": null, "LogConfig": { "Type": "json-file", "Config": {} }, "CgroupParent": "", "ConsoleSize": [ 0, 0 ], "VolumeDriver": "" }, "GraphDriver": { "Name": "devicemapper", "Data": { "DeviceId": "574", "DeviceName": "docker-253:0-135637248-06df0e186f49297e217bab77c9101926bc2333c429d4551a151a64159a82c942", "DeviceSize": "107374182400" } }, "Mounts": [ { "Name": "42e8ebbf5846da5067567cab9a72e75931c1190b94a5d62169b9c2cf54e33138", "Source": "/var/lib/docker/volumes/42e8ebbf5846da5067567cab9a72e75931c1190b94a5d62169b9c2cf54e33138/_data", "Destination": "/tmp", "Driver": "local", "Mode": "", "RW": true } ], "Config": { "Hostname": "06df0e186f49", "Domainname": "", "User": "", "AttachStdin": false, "AttachStdout": true, "AttachStderr": true, "ExposedPorts": { "5701/udp": {}, "8080/tcp": {}, "9010/tcp": {} }, "Tty": false, "OpenStdin": false, "StdinOnce": false, "Env": [ "JAVA_OPTS=-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=9010 -Dcom.sun.management.jmxremote.local.only=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.rmi.port=9010 -Dcom.sun.management.jmxremote.ssl=false", "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/lib/jvm/java-1.8-openjdk/jre/bin:/usr/lib/jvm/java-1.8-openjdk/bin", "LANG=C.UTF-8", "JAVA_HOME=/usr/lib/jvm/java-1.8-openjdk/jre", "JAVA_VERSION=8u131", "JAVA_ALPINE_VERSION=8.131.11-r1", "JHIPSTER_SLEEP=0" ], "Cmd": [ "/bin/sh", "-c", "echo \"The application will start in ${JHIPSTER_SLEEP}s...\" \u0026\u0026 sleep ${JHIPSTER_SLEEP} \u0026\u0026 java -Djava.security.egd=file:/dev/./urandom -jar /app.war" ], "Image": "gateway", "Volumes": { "/tmp": {} }, "WorkingDir": "", "Entrypoint": null, "OnBuild": null, "Labels": {}, "StopSignal": "SIGTERM" }, "NetworkSettings": { "Bridge": "", "SandboxID": "1a318dd2e3bffc03a0242b08ba4e8a6592f076f89f317da8ba825f2be7ca01d5", "HairpinMode": false, "LinkLocalIPv6Address": "", "LinkLocalIPv6PrefixLen": 0, "Ports": { "5701/udp": null, "8080/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "8080" } ], "9010/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "9010" } ] }, "SandboxKey": "/var/run/docker/netns/1a318dd2e3bf", "SecondaryIPAddresses": null, "SecondaryIPv6Addresses": null, "EndpointID": "df67c23d6e56d645dfe6a8767598bacd35d86e1b29a4caf078fd4c0bc5a92784", "Gateway": "172.17.0.1", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "IPAddress": "172.17.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "MacAddress": "02:42:ac:11:00:03", "Networks": { "bridge": { "EndpointID": "df67c23d6e56d645dfe6a8767598bacd35d86e1b29a4caf078fd4c0bc5a92784", "Gateway": "172.17.0.1", "IPAddress": "172.17.0.3", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, } } } } ]
这个问题似乎是java.rmi.server.hostname属性的值。
这需要是JMX客户端用来连接到JVM的主机名或IP地址。 如果您尝试使用127.0.0.1:9010进行连接，则在启动时使用-Djava.rmi.server.hostname = 127.0.0.1