6,534
edits
Changes
→Validating Container Configuration: added manual/automatic adj
=== Validating Container Configuration ===
The system resource control parameters have complex interdependencies. Violation of these interdependencies can be catastrophic for the Container. In order to ensure that a Container does not break them, it is important to validate the CT configuration file before creating CTs on its basis.
# '''vzcfgvalidate /etc/vz/conf/101.conf'''
Recommendation: dgramrcvbuf.bar should be > 132096 (currently, 65536)
Recommendation: othersockbuf.bar should be > 132096 (currently, 122880)
The utility checks constraints on the resource management parameters and displays all the constraint violations found. There can be three levels of violation severity:
|}
==== Manual adjustment ==== To fix errors or warnings reported by <code>vzcfgvalidate</code>, adjust the parameters accordingly and re-run the <code>vzcfgvalidate</code>. # '''vzctl set 101 --kmemsize 2211840:2359296 --save''' Saved parameters for CT 101 # '''vzcfgvalidate /etc/vz/conf/101.conf''' Recommendation: dgramrcvbuf.bar should be > 132096 (currently, 65536) Recommendation: othersockbuf.bar should ba > 132096 (currently, 122880)t Validation completed: success In the scenario above, the first run of the <code>vzcfgvalidate </code> utility found a critical error for the <code>kmemsize </code> parameter value. After setting reasonable values for <code>kmemsize</code>, the resulting configuration produced only recommendations, and the Container can be safely run with this configuration. ==== Automatic adjustment ==== FIXME: vzcfgvalidate -r|-i
=== Applying New Configuration Sample to Container ===