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https://issues.apache.org/jira/browse/CASSANDRA-20249?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmitry Konstantinov updated CASSANDRA-20249:
--------------------------------------------
Summary: Add a check if properties defined in Config.java but not mentioned
in cassandra.yaml (was: Add a check that properties defined in Config.java but
not mentioned in cassandra.yaml)
> Add a check if properties defined in Config.java but not mentioned in
> cassandra.yaml
> ------------------------------------------------------------------------------------
>
> Key: CASSANDRA-20249
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20249
> Project: Apache Cassandra
> Issue Type: Task
> Components: Build
> Reporter: Dmitry Konstantinov
> Priority: Normal
> Attachments: config_discrepancy.txt
>
>
> Triggered by https://lists.apache.org/thread/ror3ynqthssf4yghq3o2hlbd9jyx8y0l
> It is quite frequent case when a new property is added to Config.java but not
> mentioned in cassandra.yaml and cassandra_latest.yaml. Sometimes, it is made
> intentionally for some non-public parameters.
> We need to find a way to detect such discrepancies between Config.java vs
> cassandra.yaml and cassandra_latest.yaml automatically.
> A sketch of the check idea:
> {code}
> String configUrl = "file:///..cassandra-trunk/conf/cassandra.yaml";
> Field[] allFields = Config.class.getFields();
> List<String> topLevelPropertyNames = new ArrayList<>();
> for(Field field : allFields)
> {
> if (!Modifier.isStatic(field.getModifiers()))
> {
> topLevelPropertyNames.add(field.getName());
> }
> }
> URL url = new URL(configUrl);
> List<String> lines = Files.readAllLines(Paths.get(url.toURI()));
> int missedCount = 0;
> for (String propertyName : topLevelPropertyNames)
> {
> boolean found = false;
> for (String line : lines)
> {
> if (line.startsWith(propertyName + ":")
> || line.startsWith("#" + propertyName + ":")
> || line.startsWith("# " + propertyName + ":")) {
> found = true;
> break;
> }
> }
> if (!found)
> {
> missedCount++;
> System.out.println(propertyName);
> }
> }
> System.out.println("Total missed:" + missedCount);
> {code}
> Output example: [^config_discrepancy.txt]
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