ERROR Installing Agent

Hello @xiaocao 

Thank you for reaching out to Cloudera Support

Can you please check the /etc/cloudera-scm-agent/config.ini once on the affected node. Is server_host pointing to the CM server

What is the CM and CDP version here?

Check /var/log/messages from the affected node as well and see if find any errors regarding CM

Hi,

the version is 6.3.1

config.ini:

server_host=192.168.201.157

server_port=7182

max_collection_wait_seconds=10.0

metrics_url_timeout_seconds=30.0

task_metrics_timeout_seconds=5.0

monitored_nodev_filesystem_types=nfs,nfs4,tmpfs

local_filesystem_whitelist=ext2,ext3,ext4,xfs

impala_profile_bundle_max_bytes=1073741824

stacks_log_bundle_max_bytes=1073741824

stacks_log_max_uncompressed_file_size_bytes=5242880

orphan_process_dir_staleness_threshold=5184000

orphan_process_dir_refresh_interval=3600

scm_debug=INFO

dns_resolution_collection_interval_seconds=60

dns_resolution_collection_timeout_seconds=30

use_tls=0

max_cert_depth=9

messages:

Mar 5 17:08:48 0860cdh03vt systemd-logind: New session 15 of user root.
Mar 5 17:08:48 0860cdh03vt systemd: Started Session 15 of user root.
Mar 5 17:10:01 0860cdh03vt systemd: Started Session 16 of user root.
Mar 5 17:10:07 0860cdh03vt systemd: Stopping Cloudera Manager Agent Service...
Mar 5 17:10:08 0860cdh03vt systemd: Stopped Cloudera Manager Agent Service.
Mar 5 17:10:08 0860cdh03vt systemd: Started Cloudera Manager Agent Service.
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread logging INFO SCM Agent (agent) Version: 6.3.1
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread main INFO Executing with arguments: /opt/cloudera/cm-agent/bin/cm agent
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread navigator_thread INFO Creating the Audit Thread
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread navigator_thread INFO Creating the Metadata Thread
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread navigator_thread INFO Creating the Profile Thread
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread main INFO Using existing process limit: (127909, 127909)
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Missing database jar: /usr/share/java/mysql-connector-java.jar (normal, if you're not using this database type)
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Missing database jar: /usr/share/java/oracle-connector-java.jar (normal, if you're not using this database type)
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Found database jar: /opt/cloudera/cm/lib/postgresql-42.1.4.jre7.jar
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Not starting a new session.
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Re-using pre-existing directory: /run/cloudera-scm-agent
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/supervisor
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/flood
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/supervisor/include
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/cgroups
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/process
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread tmpfs INFO Reusing mounted tmpfs at /var/run/cloudera-scm-agent/process
Mar 5 17:10:09 0860cdh03vt cm: [05/Mar/2025 17:10:09 +0000] 15752 MainThread logging INFO Logging to /var/log/cloudera-scm-agent/cloudera-scm-agent.log
Mar 5 17:10:17 0860cdh03vt cm: /opt/cloudera/cm-agent/lib/python2.7/site-packages/psutil/_pslinux.py:477: RuntimeWarning: dirty, writeback, mapped, commit_limit memory stats couldn't be determined and were set to 0
Mar 5 17:10:17 0860cdh03vt cm: warnings.warn(msg, RuntimeWarning)
Mar 5 17:11:09 0860cdh03vt systemd-logind: Removed session 15.
Mar 5 17:20:01 0860cdh03vt systemd: Started Session 17 of user root.

Hello @xiaocao 

Can you try hard restarting the agent once

# systemctl stop cloudera-scm-agent

# systemctl stop cloudera-scm-supervisord

# systemctl start cloudera-scm-agent

Also it this a new installation or was it registered earlier with some other CM server?

HI

This a new installation. It is the first time to install the cloudera-scm-agent and cloudera-scm-server

Hello,

Thank you for your update

Did hard restarting the agent helped?

# systemctl stop cloudera-scm-agent

# systemctl stop cloudera-scm-supervisord

# systemctl start cloudera-scm-agent

Also can you share the output of below command from the affected node

# rpm -qa | grep -i cloudera

# free -mh

# df -hT

# netstat -tulpn | grep -i 9000

# netstat -tulpn | grep -i 9001

I restarting the agent but not helped

below is output of your shared command from the affected node

Hello @xiaocao 

Can you check if all three PID's are cloudera process only

# ps -ef | grep -i 15833

# ps -ef | grep -i 10429

# ps -ef | grep -i 15752

# netstat <CM_SERVER_IP> 7182

# netstat <CM_SERVER_HOST> 7182

HI,

I'm checked all three PID's are cloudera process only

Hello @xiaocao 

Sorry, there was a typo Please run the below command

# telnet  <CM_SERVER_IP> 7182

# telnet <CM_SERVER_HOST> 7182

# systemctl status cloudera-scm-agent 

Hi, 

I'm used three virtual machines installed cloudera server and cloudera agent. Server installed in the first machine and agent in all the three machines.