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https://reviews.apache.org/r/37023/
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(Updated Oct. 13, 2015, 2:47 a.m.)


Review request for mesos and Ben Mahler.


Changes
-------

Rebase


Bugs: MESOS-3104
    https://issues.apache.org/jira/browse/MESOS-3104


Repository: mesos


Description
-------

Add an endpoint that exposes component flags.


Diffs (updated)
-----

  src/master/http.cpp 4b9f9ed005a4af2897171659d15168955cc60660 
  src/master/master.hpp 9d957519bb0f717526af9b2717dc870fae93c20f 
  src/master/master.cpp 6bee4f351c3fd0fb72f64bbc863968e4786b318b 
  src/slave/http.cpp f9cf7bbe81b7fe9637de9a8d66329c16a7e1a89b 
  src/slave/slave.hpp 18be4f8188ad34ef4d0aa4b5eba241053d071476 
  src/slave/slave.cpp d1c9977feeb30ad43586a4560eed155865d27a6c 

Diff: https://reviews.apache.org/r/37023/diff/


Testing
-------

manual test wich mesos-local.
```
$ curl http://localhost:5050/master/flags 2>/dev/null|jq .
{
  "flags": {
    "allocation_interval": "1secs",
    "allocator": "HierarchicalDRF",
    "authenticate": "false",
    "authenticate_slaves": "false",
    "authenticators": "crammd5",
    "framework_sorter": "drf",
    "help": "true",
    "initialize_driver_logging": "true",
    "log_auto_initialize": "true",
    "logbufsecs": "0",
    "logging_level": "INFO",
    "max_slave_ping_timeouts": "5",
    "quiet": "false",
    "recovery_slave_removal_limit": "100%",
    "registry": "replicated_log",
    "registry_fetch_timeout": "1mins",
    "registry_store_timeout": "5secs",
    "registry_strict": "false",
    "root_submissions": "true",
    "slave_ping_timeout": "15secs",
    "slave_reregister_timeout": "10mins",
    "user_sorter": "drf",
    "version": "false",
    "webui_dir": "/home/haosdent/mesos/build/../src/webui",
    "work_dir": "/tmp/mesos",
    "zk_session_timeout": "10secs"
  }
}
```

```
$ curl http://localhost:5050/slave(1)/flags 2>/dev/null|jq .
{
  "flags": {
    "authenticatee": "crammd5",
    "cgroups_cpu_enable_pids_and_tids_count": "false",
    "cgroups_enable_cfs": "false",
    "cgroups_hierarchy": "/sys/fs/cgroup",
    "cgroups_limit_swap": "false",
    "cgroups_root": "mesos",
    "container_disk_watch_interval": "15secs",
    "containerizers": "mesos",
    "default_role": "*",
    "disk_watch_interval": "1mins",
    "docker": "docker",
    "docker_kill_orphans": "true",
    "docker_remove_delay": "6hrs",
    "docker_socket": "/var/run/docker.sock",
    "docker_stop_timeout": "0ns",
    "enforce_container_disk_quota": "false",
    "executor_registration_timeout": "1mins",
    "executor_shutdown_grace_period": "5secs",
    "fetcher_cache_dir": "/tmp/mesos/fetch",
    "fetcher_cache_size": "2GB",
    "frameworks_home": "",
    "gc_delay": "1weeks",
    "gc_disk_headroom": "0.1",
    "hadoop_home": "",
    "help": "false",
    "initialize_driver_logging": "true",
    "isolation": "posix/cpu,posix/mem",
    "launcher_dir": "/home/haosdent/mesos/build/src",
    "logbufsecs": "0",
    "logging_level": "INFO",
    "oversubscribed_resources_interval": "15secs",
    "perf_duration": "10secs",
    "perf_interval": "1mins",
    "qos_correction_interval_min": "0ns",
    "quiet": "false",
    "recover": "reconnect",
    "recovery_timeout": "15mins",
    "registration_backoff_factor": "1secs",
    "resource_monitoring_interval": "1secs",
    "revocable_cpu_low_priority": "true",
    "sandbox_directory": "/mnt/mesos/sandbox",
    "strict": "true",
    "switch_user": "true",
    "version": "false",
    "work_dir": "/tmp/mesos/0"
  }
}
```


Thanks,

haosdent huang