Github user kishoreg commented on a diff in the pull request: https://github.com/apache/helix/pull/155#discussion_r176171189 --- Diff: helix-core/src/main/java/org/apache/helix/manager/zk/CallbackHandler.java --- @@ -576,8 +573,8 @@ public void handleDataChange(String dataPath, Object data) { @Override public void handleChildChange(String parentPath, List<String> currentChilds) { - logger.debug("Data change callback: child changed, path: " + parentPath + ", current childs: " - + currentChilds); + logger.info("Data change callback: child changed, path: " + parentPath + ", current child count: " --- End diff -- lets avoid constructing strings to reduce GC pressure. Also, this will pollute the logs. What are we trying to get out of these log messages
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