我的主机是 ubuntu20.04、 32GB RAM、 16Core CPU
我在做 rabbitmq server 的测试，使用 docker。
我希望给 rabbitmq sever 的资源是 1 core cpu、2GB RAM
所以，我写了下面的 docker-compose.yaml 文件
version: "3.7"
services:
rabbitmq3-management:
restart: always
container_name: rabbitmq3-management
image: rabbitmq:3-management
hostname: rabbitmq3-management-standalone
logging:
driver: json-file
options:
max-size: "100m"
max-file: "1"
environment:
- RABBITMQ_DEFAULT_USER=pon
- RABBITMQ_DEFAULT_PASS=pon
volumes:
# - "./volumes:/var/lib/rabbitmq"
- "./rabbitmq.conf:/etc/rabbitmq/rabbitmq.conf"
ports:
- "5672:5672"
- "15672:15672"
- "15692:15692"
deploy:
resources:
limits:
cpus: '1'
memory: 2048M
rabbitmq.conf 内容如下：
vm_memory_high_watermark.relative = 0.8然后我 docker-compose up -d 启动了这个 rabbitmq-sever
但是从浏览器界面上看
显示，内存 25GB，而不是 800MB！为什么？为什么？为什么？
输入 docker inspect rabbitmq3-management
[
{
"Id": "10eddc6ea83de808f795be14b184d3f7b861474e5292059899cfae3b33d168e2",
"Created": "2023-01-10T02:57:14.197749709Z",
"Path": "docker-entrypoint.sh",
"Args": [
"rabbitmq-server"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 878201,
"ExitCode": 0,
"Error": "",
"StartedAt": "2023-01-10T02:58:49.424301236Z",
"FinishedAt": "2023-01-10T02:58:47.365462259Z"
},
"Image": "sha256:7edc94eb6c4a7451ee5b2660767a6b478e55dc6a5dd21bfaedeb9ac1cbdd9d34",
"ResolvConfPath": "/var/lib/docker/containers/10eddc6ea83de808f795be14b184d3f7b861474e5292059899cfae3b33d168e2/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/10eddc6ea83de808f795be14b184d3f7b861474e5292059899cfae3b33d168e2/hostname",
"HostsPath": "/var/lib/docker/containers/10eddc6ea83de808f795be14b184d3f7b861474e5292059899cfae3b33d168e2/hosts",
"LogPath": "/var/lib/docker/containers/10eddc6ea83de808f795be14b184d3f7b861474e5292059899cfae3b33d168e2/10eddc6ea83de808f795be14b184d3f7b861474e5292059899cfae3b33d168e2-json.log",
"Name": "/rabbitmq3-management",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "docker-default",
"ExecIDs": null,
"HostConfig": {
"Binds": [
"/home/pon/opt/docker-compose-public/rabbit/rabbitmq.conf:/etc/rabbitmq/rabbitmq.conf:rw"
],
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {
"max-file": "1",
"max-size": "100m"
}
},
"NetworkMode": "rabbit_default",
"PortBindings": {
"15672/tcp": [
{
"HostIp": "",
"HostPort": "15672"
}
],
"15692/tcp": [
{
"HostIp": "",
"HostPort": "15692"
}
],
"5672/tcp": [
{
"HostIp": "",
"HostPort": "5672"
}
]
},
"RestartPolicy": {
"Name": "always",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": [],
"CapAdd": null,
"CapDrop": null,
"CgroupnsMode": "host",
"Dns": null,
"DnsOptions": null,
"DnsSearch": null,
"ExtraHosts": null,
"GroupAdd": null,
"IpcMode": "private",
"Cgroup": "",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": null,
"UTSMode": "",
"UsernsMode": "",
"ShmSize": 67108864,
"Runtime": "runc",
"ConsoleSize": [
0,
0
],
"Isolation": "",
"CpuShares": 0,
"Memory": 2147483648,
"NanoCpus": 1000000000,
"CgroupParent": "",
"BlkioWeight": 0,
"BlkioWeightDevice": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": null,
"DeviceCgroupRules": null,
"DeviceRequests": null,
"KernelMemory": 0,
"KernelMemoryTCP": 0,
"MemoryReservation": 0,
"MemorySwap": -1,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": null,
"Ulimits": null,
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0,
"MaskedPaths": [
"/proc/asound",
"/proc/acpi",
"/proc/kcore",
"/proc/keys",
"/proc/latency_stats",
"/proc/timer_list",
"/proc/timer_stats",
"/proc/sched_debug",
"/proc/scsi",
"/sys/firmware"
],
"ReadonlyPaths": [
"/proc/bus",
"/proc/fs",
"/proc/irq",
"/proc/sys",
"/proc/sysrq-trigger"
]
},
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/7b8edcde752c23e298f7829a8a9e55d60a0f20b12584e6e99f693c2be524630e-init/diff:/var/lib/docker/overlay2/a994e23b5968b004e499099f953052cfef51c45866c4d51114a063934814425f/diff:/var/lib/docker/overlay2/fb1c574692a1042fc4585abab2055c455d8c5024a45be3df53d8cb61ec5adf5c/diff:/var/lib/docker/overlay2/f79efd9671d31c9073875708075bb6577923eecfe4c83786bfc67a5a0d57194a/diff:/var/lib/docker/overlay2/d4cd4193177420fe1d50197311eeb742c3fd3042cafd7d4c0d8875c9e1728ca7/diff:/var/lib/docker/overlay2/53bab15c470a056b678837707606020b40257d8a5b648e8488a745c1945fb661/diff:/var/lib/docker/overlay2/92cc1629dcb7e5a89771993ae8a7b181d39357dbeee8dd30a43afcce06bc87e9/diff:/var/lib/docker/overlay2/e3de5d7ac9e68b6a13b2006c4dfb25c1bcaaf9b8792d60ca5a51a8ae67935485/diff:/var/lib/docker/overlay2/c54687bc2cd4fbad20a9b99909880844b665f01018027d40eb7f0936f7d8376d/diff:/var/lib/docker/overlay2/0567d22ca4c1e816d61b4aca2733fc54d5eacd8999735c13c65d8d98a03226af/diff:/var/lib/docker/overlay2/ccb3a9ee8919bc0c2c4275382a88397f12781c872f6f045db641b9daafd7fc78/diff",
"MergedDir": "/var/lib/docker/overlay2/7b8edcde752c23e298f7829a8a9e55d60a0f20b12584e6e99f693c2be524630e/merged",
"UpperDir": "/var/lib/docker/overlay2/7b8edcde752c23e298f7829a8a9e55d60a0f20b12584e6e99f693c2be524630e/diff",
"WorkDir": "/var/lib/docker/overlay2/7b8edcde752c23e298f7829a8a9e55d60a0f20b12584e6e99f693c2be524630e/work"
},
"Name": "overlay2"
},
"Mounts": [
{
"Type": "bind",
"Source": "/home/pon/opt/docker-compose-public/rabbit/rabbitmq.conf",
"Destination": "/etc/rabbitmq/rabbitmq.conf",
"Mode": "rw",
"RW": true,
"Propagation": "rprivate"
},
{
"Type": "volume",
"Name": "688641acf65d94a530a70e9d18d1d47f71b0abc307202b6635066966ceabdcfb",
"Source": "/var/lib/docker/volumes/688641acf65d94a530a70e9d18d1d47f71b0abc307202b6635066966ceabdcfb/_data",
"Destination": "/var/lib/rabbitmq",
"Driver": "local",
"Mode": "",
"RW": true,
"Propagation": ""
}
],
"Config": {
"Hostname": "rabbitmq3-management-standalone",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": false,
"AttachStderr": false,
"ExposedPorts": {
"15671/tcp": {},
"15672/tcp": {},
"15691/tcp": {},
"15692/tcp": {},
"25672/tcp": {},
"4369/tcp": {},
"5671/tcp": {},
"5672/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"RABBITMQ_DEFAULT_USER=pon",
"RABBITMQ_DEFAULT_PASS=pon",
"PATH=/opt/rabbitmq/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"OPENSSL_VERSION=1.1.1q",
"OPENSSL_SOURCE_SHA256=d7939ce614029cdff0b6c20f0e2e5703158a489a72b2507b8bd51bf8c8fd10ca",
"OPENSSL_PGP_KEY_IDS=0x8657ABB260F056B1E5190839D9C4D26D0E604491 0x5B2545DAB21995F4088CEFAA36CEE4DEB00CFE33 0xED230BEC4D4F2518B9D7DF41F0DB4D21C1D35231 0xC1F33DD8CE1D4CC613AF14DA9195C48241FBF7DD 0x7953AC1FBC3DC8B3B292393ED5E9E43F7DF9EE8C 0xE5E52560DD91C556DDBDA5D02064C53641C25E5D",
"OTP_VERSION=25.1",
"OTP_SOURCE_SHA256=a5ea27c1e07511a84bdd869c37f5e254f198c1cecf68ee9c8fedd23010750c31",
"RABBITMQ_DATA_DIR=/var/lib/rabbitmq",
"RABBITMQ_VERSION=3.11.0",
"RABBITMQ_PGP_KEY_ID=0x0A9AF2115F4687BD29803A206B73A36E6026DFCA",
"RABBITMQ_HOME=/opt/rabbitmq",
"HOME=/var/lib/rabbitmq",
"LANG=C.UTF-8",
"LANGUAGE=C.UTF-8",
"LC_ALL=C.UTF-8"
],
"Cmd": [
"rabbitmq-server"
],
"Image": "rabbitmq:3-management",
"Volumes": {
"/etc/rabbitmq/rabbitmq.conf": {},
"/var/lib/rabbitmq": {}
},
"WorkingDir": "",
"Entrypoint": [
"docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": {
"com.docker.compose.config-hash": "399ff03ea4dad853af6802b58fa9e1ef72ab3cbf15b8b3274774fa5deaa67650",
"com.docker.compose.container-number": "1",
"com.docker.compose.oneoff": "False",
"com.docker.compose.project": "rabbit",
"com.docker.compose.project.config_files": "docker-compose.yaml",
"com.docker.compose.project.working_dir": "/home/pon/opt/docker-compose-public/rabbit",
"com.docker.compose.service": "rabbitmq3-management",
"com.docker.compose.version": "1.29.2"
}
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "4b483110e190237d464b7adcecb57e6377de3b0f28667d75594e94bc8f5a62b9",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"15671/tcp": null,
"15672/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "15672"
},
{
"HostIp": "::",
"HostPort": "15672"
}
],
"15691/tcp": null,
"15692/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "15692"
},
{
"HostIp": "::",
"HostPort": "15692"
}
],
"25672/tcp": null,
"4369/tcp": null,
"5671/tcp": null,
"5672/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "5672"
},
{
"HostIp": "::",
"HostPort": "5672"
}
]
},
"SandboxKey": "/var/run/docker/netns/4b483110e190",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "",
"Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "",
"IPPrefixLen": 0,
"IPv6Gateway": "",
"MacAddress": "",
"Networks": {
"rabbit_default": {
"IPAMConfig": null,
"Links": null,
"Aliases": [
"rabbitmq3-management",
"10eddc6ea83d",
"rabbitmq3-management-standalone"
],
"NetworkID": "cf524f6eb943a332e73221fc9d0cd84febf439a615dfab8d4a7ba3c9099d8b71",
"EndpointID": "fa950241f86513c4a57de2acd687a305935ff1f00d9384755f548d029c2cab66",
"Gateway": "172.24.0.1",
"IPAddress": "172.24.0.2",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"MacAddress": "02:42:ac:18:00:02",
"DriverOpts": null
}
}
}
}
] 
我记得
deploy这个配置段是给swarm看的配置，如果你没用swarm是不会起作用的。你应该改到services下面的mem_limit配置:官方文档有说明的，你应该没仔细看： https://docs.docker.com/compo...
在services/<app>/ 下的配置段的参数一般对应的是docker run的参数