学东 发表于 2019-4-9 10:19
这个问题上周搞定了，同事卸载重装的、然后chmod 777 -R /opt 这一类问题就没有了。
重装卸载一定要卸干净 ...

楼主说的对。
对于cloudera的安装，只要一步步按照步骤，一般不会出问题的。
如果是安装中出现异常，其实还是比较难搞的。
最好最粗暴的办法就是卸载干净重新安装。
如果想详细知道错误等，那就是十分耗时间了，而且可能还解决不掉。

这个问题上周搞定了，同事卸载重装的、然后chmod 777 -R /opt 这一类问题就没有了。
重装卸载一定要卸干净。

学东 发表于 2019-4-3 22:07
agent :

[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     First time to activ ...

需要找到error
可以通过下面命令过滤日志中的错误。
[mw_shl_code=bash,true]cat 日志|grep ERROR[/mw_shl_code]

yaojiank 发表于 2019-4-3 17:56
上面有两处有价值的错误信息：

EACCESsupervisor: child process was not spawned

agent :

[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     First time to activate the process [70-cloudera-mgmt-SERVICEMONITOR].
[03/Apr/2019 22:02:03 +0000] 30031 MainThread agent        INFO     Created /opt/cm-5.14.2/run/cloudera-scm-agent/process/70-cloudera-mgmt-SERVICEMONITOR
[03/Apr/2019 22:02:03 +0000] 30031 MainThread agent        INFO     Chowning /opt/cm-5.14.2/run/cloudera-scm-agent/process/70-cloudera-mgmt-SERVICEMONITOR to cloudera-scm (987) cloudera-scm (982)
[03/Apr/2019 22:02:03 +0000] 30031 MainThread agent        INFO     Chmod'ing /opt/cm-5.14.2/run/cloudera-scm-agent/process/70-cloudera-mgmt-SERVICEMONITOR to 0751
[03/Apr/2019 22:02:03 +0000] 30031 MainThread agent        INFO     Created /opt/cm-5.14.2/run/cloudera-scm-agent/process/70-cloudera-mgmt-SERVICEMONITOR/logs
[03/Apr/2019 22:02:03 +0000] 30031 MainThread agent        INFO     Chowning /opt/cm-5.14.2/run/cloudera-scm-agent/process/70-cloudera-mgmt-SERVICEMONITOR/logs to cloudera-scm (987) cloudera-scm (982)
[03/Apr/2019 22:02:03 +0000] 30031 MainThread agent        INFO     Chmod'ing /opt/cm-5.14.2/run/cloudera-scm-agent/process/70-cloudera-mgmt-SERVICEMONITOR/logs to 0751
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     [70-cloudera-mgmt-SERVICEMONITOR] Refreshing process files: None
[03/Apr/2019 22:02:03 +0000] 30031 MainThread parcel       INFO     prepare_environment begin: {u'CDH': u'5.14.2-1.cdh5.14.2.p0.3'}, [], []
[03/Apr/2019 22:02:03 +0000] 30031 MainThread parcel       INFO     Service does not request any parcels
[03/Apr/2019 22:02:03 +0000] 30031 MainThread __init__     INFO     Extracted 12 files and 0 dirs to /opt/cm-5.14.2/run/cloudera-scm-agent/process/70-cloudera-mgmt-SERVICEMONITOR.
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     [70-cloudera-mgmt-SERVICEMONITOR] Evaluating resource: {u'io': None, u'named_cpu': None, u'tcp_listen': None, u'dynamic': True, u'rlimits': None, u'install': None, u'file': None, u'memory': None, u'directory': {u'path': u'/var/log/cloudera-scm-firehose/stacks', u'bytes_free_warning_threshhold_bytes': 0, u'group': u'cloudera-scm', u'user': u'cloudera-scm', u'mode': 493}, u'cpu': None, u'contents': None}
[03/Apr/2019 22:02:03 +0000] 30031 MainThread os_ops       WARNING  Expected mode 0755 for /var/log/cloudera-scm-firehose/stacks but was 0775
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     reading limits: {u'limit_memlock': None, u'limit_fds': None}
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     [70-cloudera-mgmt-SERVICEMONITOR] Launching process. one-off False, command mgmt/mgmt.sh, args [u'firehose', u'--pipeline-type', u'SERVICE_MONITORING']
[03/Apr/2019 22:02:03 +0000] 30031 MainThread agent        INFO     Triggering supervisord update.
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     Begin audit plugin refresh
[03/Apr/2019 22:02:03 +0000] 30031 MainThread navigator_plugin INFO     Scheduling a refresh for Audit Plugin for cloudera-mgmt-SERVICEMONITOR with pipelines []
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     Begin metadata plugin refresh
[03/Apr/2019 22:02:03 +0000] 30031 MainThread navigator_plugin INFO     Scheduling a refresh for Metadata Plugin for cloudera-mgmt-SERVICEMONITOR with pipelines []
[03/Apr/2019 22:02:03 +0000] 30031 MainThread __init__     INFO     Instantiating generic monitor for service MGMT and role SERVICEMONITOR
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     Begin monitor refresh.
[03/Apr/2019 22:02:03 +0000] 30031 MainThread abstract_monitor INFO     Refreshing GenericMonitor MGMT-SERVICEMONITOR for None
[03/Apr/2019 22:02:03 +0000] 30031 MainThread __init__     INFO     New monitor: (<cmf.monitor.generic.GenericMonitor object at 0x2fdab50>,)
[03/Apr/2019 22:02:03 +0000] 30031 MainThread process      INFO     Daemon refresh complete for process 70-cloudera-mgmt-SERVICEMONITOR.
[03/Apr/2019 22:02:06 +0000] 30031 Metadata-Plugin navigator_plugin INFO     Refreshing Metadata Plugin for cloudera-mgmt-SERVICEMONITOR with pipelines []
[03/Apr/2019 22:02:06 +0000] 30031 Metadata-Plugin navigator_plugin_pipeline INFO     Stopping Navigator Plugin Pipeline '' for cloudera-mgmt-SERVICEMONITOR (log dir: None)
[03/Apr/2019 22:02:06 +0000] 30031 Audit-Plugin navigator_plugin INFO     Refreshing Audit Plugin for cloudera-mgmt-SERVICEMONITOR with pipelines []
[03/Apr/2019 22:02:06 +0000] 30031 Audit-Plugin navigator_plugin_pipeline INFO     Stopping Navigator Plugin Pipeline '' for cloudera-mgmt-SERVICEMONITOR (log dir: None)
[03/Apr/2019 22:02:26 +0000] 30031 MainThread process      INFO     [70-cloudera-mgmt-SERVICEMONITOR] Updating process: False {u'running': (True, False), u'run_generation': (1, 2)}
[03/Apr/2019 22:02:26 +0000] 30031 MainThread process      INFO     Deactivating process 70-cloudera-mgmt-SERVICEMONITOR
[03/Apr/2019 22:02:31 +0000] 30031 Metadata-Plugin navigator_plugin INFO     stopping Metadata Plugin for cloudera-mgmt-SERVICEMONITOR with pipelines []
[03/Apr/2019 22:02:31 +0000] 30031 Metadata-Plugin navigator_plugin_pipeline INFO     Stopping Navigator Plugin Pipeline '' for cloudera-mgmt-SERVICEMONITOR (log dir: None)
[03/Apr/2019 22:02:31 +0000] 30031 Audit-Plugin navigator_plugin INFO     stopping Audit Plugin for cloudera-mgmt-SERVICEMONITOR with pipelines []
[03/Apr/2019 22:02:31 +0000] 30031 Audit-Plugin navigator_plugin_pipeline INFO     Stopping Navigator Plugin Pipeline '' for cloudera-mgmt-SERVICEMONITOR (log dir: None)
[03/Apr/2019 22:03:03 +0000] 30031 MonitorDaemon-Scheduler __init__     INFO     Monitor expired: ('GenericMonitor MGMT-SERVICEMONITOR for mgmt-SERVICEMONITOR-9087569f37dce8f46af56b79189cf761',)

上面有两处有价值的错误信息：

EACCESsupervisor: child process was not spawned
这一处错误太过广泛，意思是不能生成子进程，但是不能生成子进程的原因太多了


org.apache.avro.AvroRemoteException: java.net.ConnectException: Connection refused (Connection refused)

这一处的错误是链接错误。也就是说上面错误的原因是因为这里被链接拒绝造成的，也就是说这里成为了关键。但是这个链接拒绝又有很多原因。比如端口被暂用，防火墙未关闭，ntp未同步时间等等，各种原因都可能造成。所以楼主还需要更详细的信息