Traceback (most recent call last):
  File "/var/lib/ambari-agent/cache/stacks/DIF/3.0/services/AMBARI_METRICS/package/scripts/metrics_monitor.py", line 78, in <module>
    AmsMonitor().execute()
  File "/usr/lib/ambari-agent/lib/resource_management/libraries/script/script.py", line 352, in execute
    method(env)
  File "/var/lib/ambari-agent/cache/stacks/DIF/3.0/services/AMBARI_METRICS/package/scripts/metrics_monitor.py", line 43, in start
    action = 'start'
  File "/usr/lib/ambari-agent/lib/ambari_commons/os_family_impl.py", line 89, in thunk
    return fn(*args, **kwargs)
  File "/var/lib/ambari-agent/cache/stacks/DIF/3.0/services/AMBARI_METRICS/package/scripts/ams_service.py", line 109, in ams_service
    user=params.ams_user
  File "/usr/lib/ambari-agent/lib/resource_management/core/base.py", line 166, in __init__
    self.env.run()
  File "/usr/lib/ambari-agent/lib/resource_management/core/environment.py", line 160, in run
    self.run_action(resource, action)
  File "/usr/lib/ambari-agent/lib/resource_management/core/environment.py", line 124, in run_action
    provider_action()
  File "/usr/lib/ambari-agent/lib/resource_management/core/providers/system.py", line 269, in action_run
    returns=self.resource.returns)
  File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 72, in inner
    result = function(command, **kwargs)
  File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 102, in checked_call
    tries=tries, try_sleep=try_sleep, timeout_kill_strategy=timeout_kill_strategy, returns=returns)
  File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 150, in _call_wrapper
    result = _call(command, **kwargs_copy)
  File "/usr/lib/ambari-agent/lib/resource_management/core/shell.py", line 314, in _call
    raise ExecutionFailed(err_msg, code, out, err)
resource_management.core.exceptions.ExecutionFailed: Execution of '/usr/sbin/ambari-metrics-monitor --config /etc/ambari-metrics-monitor/conf start' returned 255. psutil build directory is not empty, continuing...
Verifying Python version compatibility...
Using python  /usr/bin/python2.7
Checking for previously running Metric Monitor...
/var/run/ambari-metrics-monitor/ambari-metrics-monitor.pid found with no process. Removing 543...
Starting ambari-metrics-monitor
Verifying ambari-metrics-monitor process status with PID : 1842
Output of PID check : 
ERROR: ambari-metrics-monitor start failed. For more details, see /var/log/ambari-metrics-monitor/ambari-metrics-monitor.out:
====================
    from metric_collector import MetricsCollector
  File "/usr/lib/python2.6/site-packages/resource_monitoring/core/metric_collector.py", line 23, in <module>
    from host_info import HostInfo
  File "/usr/lib/python2.6/site-packages/resource_monitoring/core/host_info.py", line 25, in <module>
    import psutil
  File "/usr/lib/python2.6/site-packages/resource_monitoring/psutil/build/lib.linux-x86_64-2.7/psutil/__init__.py", line 89, in <module>
    import psutil._pslinux as _psplatform
  File "/usr/lib/python2.6/site-packages/resource_monitoring/psutil/build/lib.linux-x86_64-2.7/psutil/_pslinux.py", line 20, in <module>
    from psutil import _common
ImportError: cannot import name _common
====================
Monitor out at: /var/log/ambari-metrics-monitor/ambari-metrics-monitor.out

解决办法：
先写解决方法：
cd /usr/lib/python2.6/site-packages/resource_monitoring/psutil
python setup.py build # 如果报gcc编译错误，请自行安装、升级gcc\gcc-c++
python setup.py install

问题原因：
Ambari安装过程会安装一个目录 /usr/lib/python2.6 ，因为系统是CentOS 7.3，默认使用的是 python 2.7.5，不应该有 python2.6的依赖的。
查看系统python命令，下图红框中的命令是ambari生成的
ll /usr/bin/|grep python

image.png

[root@ambari-server psutil]$ cat /usr/bin/python-wrap 
#!/usr/bin/env bash
# Copyright (c) 2011-2017, Hortonworks Inc.  All rights reserved.
# Except as expressly permitted in a written agreement between you
# or your company and Hortonworks, Inc, any use, reproduction,
# modification, redistribution, sharing, lending or other exploitation
# of all or any part of the contents of this file is strictly prohibited.

PY_PACKAGES_DIR=site-packages
OS_DIST=`cat /etc/issue 2>/dev/null`
if [[ $OS_DIST == *Ubuntu* ]] || [[ $OS_DIST == *Debian* ]] ; then
    PY_PACKAGES_DIR=dist-packages
fi

export PYTHONPATH=/usr/lib/python2.6/$PY_PACKAGES_DIR:$PYTHONPATH


# reset settings
unset PYTHON

# checking for preferable python versions
if [ -a /usr/bin/python2.7 ] && [ -z "$PYTHON" ]; then
    PYTHON=/usr/bin/python2.7
fi

if [ -a /usr/bin/python2.6 ] && [ -z "$PYTHON" ]; then
    PYTHON=/usr/bin/python2.6
fi

# if no preferable python versions found, try to use system one
if [[ -z "$PYTHON" ]]; then
    PYTHON=/usr/bin/python
fi

# execute script
$PYTHON "$@"

从这个命令脚本中可心看出 ambari 使用的还是 python2.7 只是重新设置了 PYTHONPATH 依赖库，依赖库中是有psutil这个module的，但只是安装目录。启动 ambari-metrics 的报错日志中会有一条命令（我这里没有记录下来），大致意思是“命令执行中没有发现 psutil build 目录”，那么，按照通用python包安装命令执行：

yum -y install python-devel.x86_64
或者
sudo yum install g+±multilib python-devel

安装报错依赖问题可以通过强制安装来解决

rpm -ivh python-devel-2.7.5-92.el7_9.x86_64.rpm --nodeps --force

然后在执行

python setup.py build
python setup.py install

至此，问题解决，启动 ambari-collecator ，已经可以起来了。

https://blog.csdn.net/qq_43614355/article/details/100579541

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HDP-2.6.5 & ambari-2.6.2 安装配置
https://blog.51cto.com/784687488/2329891