Hello All,
I had a CentOS server with Check_MK, which was migrated to Red Hat 9.0 for security reasons. The CentOS server was running RAW version 2.1.0p9.
A full backup was made from CentOS to Red Hat, the same version 2.1.0p9 was installed, and then it was upgraded to version 2.4.0p5. Since then, the Oracle monitoring configuration has not been working.
*The Oracle plugin is the same version as Check_MK 2.4, and is located in the following path: /usr/lib/check_mk_agent/plugins/mk_oracle
The .cfg file is located in the following path:
/etc/check_mk
CMK version: Checkmk Raw Edition 2.4.0p5
OS version: Operating System: Red Hat Enterprise Linux 9.8 (Plow)
CPE OS Name: cpe:/o:redhat:enterprise_linux:9::baseos
Kernel: Linux 5.14.0-687.26.1.el9_8.x86_64
Architecture: x86-64
Error message: /sqlnet.ora can not be read by user “root”! If you use the bakery to roll out the agent use ‘sqlnet.ora permission group’ setting of the ‘Oracle databases’ agent rule or directly modify permissions of the file (use ‘mk_oracle --no-spool -t’ for instructions).
Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins)
ORA REMOTE_INSTANCE_1 Instance /sqlnet.ora can not be read by user “root”! If you use the bakery to roll out the agent use ‘sqlnet.ora permission group’ setting of the ‘Oracle databases’ agent rule or directly modify permissions of the file (use ‘mk_oracle --no-spool -t’ for instructions).
Postfix Queue default Deferred queue length: 0, Active queue length: 0
Postfix status default Status: the Postfix mail system is running, PID: 4751
Systemd Service taniumclient Status: active, Tanium Client, CPU Time: 4 hours 32 minutes, Active since: 3 days 0 hours, Memory: 1.60 GiB, Number of tasks: 265
TCP Connections Established: 282
Uptime Up since 2026-07-26 20:09:42, Uptime: 3 days 20 hours
1 piggyback files for ‘SERVER1’.
Read piggyback file ‘/omd/sites/livingston1/tmp/check_mk/piggyback/SERVER1/SERVERCHECKMK01’
[cpu_tracking] Stop [7faa65a3a360 - Snapshot(process=posix.times_result(user=0.8600000000000003, system=0.010000000000000009, children_user=0.0, children_system=0.0, elapsed=0.8700000001117587))]
[agent] Success, [piggyback] Successfully processed from source ‘SERVERCHECKMK01’, execution time 2.8 sec | execution_time=2.800 user_time=0.860 system_time=0.010 children_user_time=0.000 children_system_time=0.000 cmk_time_agent=1.930
There are 5 instances with the same error.
This is the result of a test execution:
ORACLE TEST.txt (9.7 KB)
Thanks in advance.
Regards,
Vix