查看节点列表
[root@ip-172-31-34-218 ~]# dcos node list
HOSTNAME IP PUBLIC IP(S) ID TYPE STATUS REGION ZONE
172.31.43.178 172.31.43.178 172.31.43.178 ff4f14ff-2887-4816-babe-1d7fb100145f-S1 agent (public) ACTIVE ap-northeast-1 ap-northeast-1a
172.31.41.246 172.31.41.246 172.31.41.246 ff4f14ff-2887-4816-babe-1d7fb100145f-S0 agent ACTIVE ap-northeast-1 ap-northeast-1a
master.mesos. 172.31.43.15 172.31.43.15 ff4f14ff-2887-4816-babe-1d7fb100145f master (leader) ap-northeast-1 ap-northeast-1a
查看已安装的marathon应用程序列表
[root@ip-172-31-34-218 ~]# dcos marathon app list
ID MEM CPUS TASKS HEALTH DEPLOYMENT WAITING CONTAINER CMD ROLE
/dcos-101/app2 128.0 1.0 1/1 N/A --- False N/A chmod u+x app2 && ./app2 dcos-101
/hello-world 10.0 0.1 2/2 N/A --- False MESOS while [ true ]; do echo 'Hello... slave_public
/nginx 1024.0 1.0 1/1 1/1 --- False DOCKER N/A slave_public
通过marathon创建服务
[root@ip-172-31-34-218 ~]# ls
anaconda-ks.cfg ip-detect.sh my-app.json
[root@ip-172-31-34-218 ~]# dcos marathon app add my-app.json
Created deployment a8b063b4-d277-40a9-bd08-424dcc9526fa
重启marathon应用程序
[root@ip-172-31-34-218 ~]# dcos marathon app restart /hello-world
Created deployment f9fa977e-d6d7-49cb-b020-dcd98c84874d
[root@ip-172-31-34-218 ~]# dcos marathon app list
ID MEM CPUS TASKS HEALTH DEPLOYMENT WAITING CONTAINER CMD ROLE
/dcos-101/app2 128.0 1.0 1/1 N/A --- False N/A chmod u+x app2 && ./app2 dcos-101
/hello-world 10.0 0.1 2/2 N/A --- False MESOS while [ true ]; do echo 'Hello... slave_public
/nginx 1024.0 1.0 1/1 1/1 --- False DOCKER N/A slave_public
查看marathon某个app的具体信息
[root@ip-172-31-34-218 ~]# dcos marathon app show my-web
在Universe 存储库中搜索 redis软件包
[root@ip-172-31-34-218 ~]# dcos package search redis
NAME VERSION CERTIFIED FRAMEWORK DESCRIPTION
mr-redis 0.0.1 false true Redis is the fastest in-memory KV-Cache and Datatstructure store
redis 4.0-0.0.1 false false This is a single redis container, which is NOT suited for HA setups. Redis i...
[root@ip-172-31-34-218 ~]# dcos package search nginx
NAME VERSION CERTIFIED FRAMEWORK DESCRIPTION
nginx 1.10.3 false false nginx is a high performance HTTP and reverse proxy server. An example for th...
部署redis软件包
[root@ip-172-31-34-218 ~]# dcos package install redis
By Deploying, you agree to the Terms and Conditions https://mesosphere.com/catalog-terms-conditions/#community-services
This DC/OS Service is currently in preview. There may be bugs, incomplete features, incorrect documentation, or other discrepancies. Redis requires a single node with 300MB of RAM and 0.1 CPUs.
Continue installing? [yes/no] yes
Installing Marathon app for package [redis] version [4.0-0.0.1]
Redis installed!
查看部署的软件包
[root@ip-172-31-34-218 ~]# dcos task
Getting the list of tasks from `dcos task` is deprecated. Please use `dcos task list`.
NAME HOST USER STATE ID AGENT ID REGION ZONE
redis 172.31.41.246 root TASK_RUNNING redis.instance-cfb15c87-1577-11ea-b05d-323b5d2dd365._app.1 ff4f14ff-2887-4816-babe-1d7fb100145f-S0 ap-northeast-1 ap-northeast-1a
[root@ip-172-31-34-218 ~]#
通过查看 Redis 日志
dcos task log redis。此命令将向我们显示 redis 任务的日志（stdout 和 stderr）。这让您可以检查实际启动是否成功。您可以使用 --lines= 参数增加显示的日志行数；默认值为 10。 *让我们通过 redis-cli 命令手动存储密钥来使用 Redis
[root@ip-172-31-34-218 ~]# dcos task log redis
1:C 03 Dec 02:51:38.160 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
1:C 03 Dec 02:51:38.161 # Redis version=4.0.14, bits=64, commit=00000000, modified=0, pid=1, just started
1:C 03 Dec 02:51:38.161 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
1:M 03 Dec 02:51:38.163 * Running mode=standalone, port=6379.
1:M 03 Dec 02:51:38.163 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1:M 03 Dec 02:51:38.163 # Server initialized
1:M 03 Dec 02:51:38.163 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
1:M 03 Dec 02:51:38.163 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
1:M 03 Dec 02:51:38.163 * Ready to accept connections
