Troubleshooting
Problem
On RTM WebGUI, there are grey graph areas on the graph page; however none of the graphs is being properly displayed.
Symptom
We may check the graphs folder in RTM: ${RTM_TOP}/cacti/rra (by default it is /opt/IBM/cacti/rra). The folder permission is okay for httpd's daemon user apache to write, however the folder is empty - none of the rra files exists.
We check the error in apache log /var/log/httpd/error_log, the following error is being reported repeatedly:
/usr/bin/rrdtool: symbol lookup error: /lib64/libpango-1.0.so.0: undefined symbol: g_log_structured_standard.
Resolving The Problem
We check the file /lib64/libpango-1.0.so.0 and it belongs to package: pango-1.42. Comparing to a working RTM system, and the package version is pango-1.40.
We use the following command to downgrade package pango from 1.42 to 1.40:
yum downgrade pango
After this, this message is no longer being reported in apache log, and new rrd files are created successfully.
Document Location
Worldwide
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSZT2D","label":"IBM Spectrum LSF RTM"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"10.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
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Document Information
Modified date:
12 December 2019
UID
ibm11100223