OK, I have something working now.
A good part of rrdtool configuration is managed in rrd4j's strategy, and all
test taken from the jrobin succeeds.
To run the test from within Eclipse I needed to modify
opennms-rrd/opennms-rrd-api/src/main/resources/org/opennms/netmgt/rrd/rrd-configuration.xml
:
diff --git
a/opennms-rrd/opennms-rrd-api/src/main/resources/org/opennms/netmgt/rrd/rrd-configuration.xml
b/opennms-rrd/opennms-rrd-api/src/main/resources/org/opennms/netmgt/rrd/rrd-configuration.xml
index dc54fe1..3b34ebd 100644
---
a/opennms-rrd/opennms-rrd-api/src/main/resources/org/opennms/netmgt/rrd/rrd-configuration.xml
+++
b/opennms-rrd/opennms-rrd-api/src/main/resources/org/opennms/netmgt/rrd/rrd-configuration.xml
@@ -4,7 +4,7 @@
<property name="properties">
<props>
<!-- General configuration -->
- <prop
key="org.opennms.rrd.strategyClass">org.opennms.netmgt.rrd.jrobin.JRobinRrdStrategy</prop>
+ <prop
key="org.opennms.rrd.strategyClass">org.opennms.netmgt.rrd.rrd4j.Rrd4JRrdStrategy</prop>
<prop key="org.opennms.rrd.usequeue">true</prop>
<prop key="org.opennms.rrd.usetcp">false</prop>
<prop key="org.opennms.rrd.fileExtension" />
I have a up to date fork of opennms available at
https://github.com/fbacchella/opennms.
The missing argument from rrdtool are :
no-gridfit
right-axis
right-axis-format
force-rules-legend
legend-direction
imginfo
grid-dash
border
dynamic-labels
zoom
font-render-mode
font-smoothing-threshold
pango-markup
I will check which one are missing from rrd4j and which one are just missing
from the parser.
The default format for rrd file is version 1, which is compatible with jrobin
but is heavy on the IO. People are urged to try version 2 with the parameter
org.rrd4j.core.RrdVersion.
I kept FILE as the backend, I agree that NIO is too heavy on memory.
Please feel free to try to break it and compare results with rrdtool.
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