Github user anew commented on a diff in the pull request: https://github.com/apache/twill/pull/14#discussion_r86287245 --- Diff: twill-yarn/src/main/java/org/apache/twill/yarn/YarnTwillPreparer.java --- @@ -296,8 +298,42 @@ public TwillPreparer addSecureStore(SecureStore secureStore) { @Override public TwillPreparer setLogLevel(LogEntry.Level logLevel) { + return setRootLogLevel(logLevel); + } + + @Override + public TwillPreparer setRootLogLevel(LogEntry.Level logLevel) { Preconditions.checkNotNull(logLevel); this.logLevel = logLevel; + saveLogLevels(logLevel); + return this; + } + + @Override + public TwillPreparer setRootLogLevel(String runnableName, LogEntry.Level logLevel) { + setLogLevels(runnableName, ImmutableMap.of(Logger.ROOT_LOGGER_NAME, logLevel)); + return this; + } + + @Override + public TwillPreparer setLogLevels(Map<String, LogEntry.Level> logLevels) { + Preconditions.checkNotNull(logLevels); + if (logLevels.containsKey(Logger.ROOT_LOGGER_NAME)) { + this.logLevel = logLevels.get(Logger.ROOT_LOGGER_NAME); + } + for (String runnableName : twillSpec.getRunnables().keySet()) { + saveLogLevels(runnableName, logLevels); + } + return this; + } + + @Override + public TwillPreparer setLogLevels(String runnableName, Map<String, LogEntry.Level> runnableLogLeves) { --- End diff -- typo: runnableLogLevels
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