dcapwell commented on code in PR #4231:
URL: https://github.com/apache/cassandra/pull/4231#discussion_r2258319572
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src/java/org/apache/cassandra/config/YamlConfigurationLoader.java:
##########
@@ -163,21 +169,63 @@ private static void maybeAddSystemProperties(Object obj)
if
(CassandraRelevantProperties.CONFIG_ALLOW_SYSTEM_PROPERTIES.getBoolean())
{
java.util.Properties props = System.getProperties();
- Map<String, String> map = new HashMap<>();
- for (String name : props.stringPropertyNames())
+ Map<String, Object> map = new HashMap<>();
+ for (String originalKey : props.stringPropertyNames())
{
- if (name.startsWith(SYSTEM_PROPERTY_PREFIX))
+ if (originalKey.startsWith(SYSTEM_PROPERTY_PREFIX))
{
- String value = props.getProperty(name);
- if (value != null)
- map.put(name.replace(SYSTEM_PROPERTY_PREFIX, ""),
value);
+ String value = props.getProperty(originalKey);
+ String configKey =
originalKey.replace(SYSTEM_PROPERTY_PREFIX, "");
+ if (value != null && !map.containsKey(configKey)) {
+ if (!DatabaseDescriptor.hasLoggedConfig()) //
CASSANDRA-9909: Avoid flooding config during initialization
+ logger.warn("Detected JVM property {}={} override
for cassandra configuration '{}' (ignored if setting does not exist).",
originalKey, value, configKey);
+ map.put(configKey, getScalarValueOrJsonObject(value));
+ }
}
}
if (!map.isEmpty())
updateFromMap(map, false, obj);
}
}
+ private static void maybeAddEnvironmentVariables(Object obj)
+ {
+ if
(CassandraRelevantProperties.CONFIG_ALLOW_ENVIRONMENT_VARIABLES.getBoolean())
Review Comment:
> I would introduce also environment property for this feature which sets
environment properties.
This could help CI as well. We use `JAVA_TOOL_OPTIONS` which caused stderr
to display this, which we then have to filter out in python dtest... using C*
specific env solves this issue
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