How to Determine if Linux Control Groups Are Not Cleaned Up
(Doc ID 2719410.1)
Last updated on JULY 20, 2024
Applies to:
Big Data Appliance Integrated Software - Version 4.5.0 and laterLinux x86-64
Purpose
How to determine if Linux control groups are not cleaned up.
Details
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In this Document
| Purpose |
| Details |
| Background |
| Checking for Empty Cgroup Structures |
| Cleaning Up Empty Cgroup Structures |
| Using lscgroup |
| Installing libcgroup-tools on OL7 |
| Differences Between lscgroup Monitoring on OL7 vs OL6 |
| Frequently Asked Questions |
| Are the settings used in, Impala and Yarn Jobs Have Degraded Performance Over Time On Systems with Heavy Linux Control Group Usage (Doc ID 2411555.1), optimum for every cluster? |
| Is there a more preferred set of values for the two settings above? |
| Are the settings provided in Impala and Yarn Jobs Have Degraded Performance Over Time On Systems with Heavy Linux Control Group Usage (Doc ID 2411555.1) dependent on OS version? |
| Does this mean if a cluster is upgraded from Oracle Linux 6 to Oracle Linux 7 the NodeManager settings above do not have to be updated? |
| If lscgroup shows a high number of cgroups does that indicate a problem? |
| Is it normal for some nodes to have more cgroups than other? |
| References |