xiangfu0 commented on code in PR #12307:
URL: https://github.com/apache/pinot/pull/12307#discussion_r1463922140
##########
pinot-spi/src/main/java/org/apache/pinot/spi/env/PinotConfiguration.java:
##########
@@ -201,16 +200,16 @@ private static Configuration loadProperties(String
configPath) {
private static Map<String, Object> relaxConfigurationKeys(Configuration
configuration) {
return CommonsConfigurationUtils.getKeysStream(configuration).distinct()
- .collect(Collectors.toMap(PinotConfiguration::relaxPropertyName, key
-> configuration.getProperty(key)));
+ .collect(Collectors.toMap(PinotConfiguration::relaxPropertyName,
configuration::getProperty));
}
private static Map<String, String> relaxEnvironmentVariables(Map<String,
String> environmentVariables) {
- return environmentVariables.entrySet().stream().filter(entry ->
entry.getKey().startsWith("PINOT_"))
+ return environmentVariables.entrySet().stream().filter(entry ->
entry.getKey().startsWith(ENV_PREFIX))
Review Comment:
1.
For the backward compatible perspective, I think the issue here is that for
whoever currently using `PINOT_CONTROLLER_HOST` will see the unexpected
behavior the override won't happen.
Suggest to rename existing `relaxEnvVarName` to `legacyRelaxEnvVarName`, and
have your new `relaxEnvVarName` to override.
E.g. existing code:
`PINOT_CONTROLLER_HOST` should be added as `controller.host`;
`PINOT_PINOT_CONTROLLER_HOST` should be added as `pinot.controller.host`;
`PINOT_ENV_SERVER_XXX` should be added as `server.xxx`;
`PINOT_ENV_PINOT_SERVER_XXX` should be added as `pinot.server.xxx`;
2.
From the ease of use perspective, actually I would love to have the direct
mapping from env variable to configs, e.g.
`pinot.server.xxx` should be override by `PINOT_SERVER_XXX`.
But due to some legacy issue that not all configs are start with `pinot.`
that's why we introduce this `PINOT_` prefix.
IMO, I would love to map env var `PINOT_XXX_YYY` to both `xxx.yyy` and
`pinot.xxx.yyy`.
So that we can cover both.
Just for `xxx.yyy` may override existing configs but `pinot.xxx.yyy` will be
added if not existed.
cc: @Jackie-Jiang @snleee @siddharthteotia @chenboat would love your best
practice of config override.
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