Geker commented on issue #968: ZKUtil deleteRecursive check LOG Level before calculate the parameter URL: https://github.com/apache/zookeeper/pull/968#issuecomment-499345965 > You can use `LOG.debug("Deleting {}",tree)` where we can save both a debug condition check and avoid invoking of tree.toString if debug is not enabled. Just don't call `tree.toString` explicitly. yes ,you are right.
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