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ASF GitHub Bot commented on TWILL-138: -------------------------------------- Github user chtyim commented on a diff in the pull request: https://github.com/apache/twill/pull/14#discussion_r91844855 --- Diff: twill-yarn/src/main/java/org/apache/twill/yarn/YarnTwillPreparer.java --- @@ -384,6 +408,24 @@ private void setEnv(String runnableName, Map<String, String> env, boolean overwr } } + private void saveLogLevels(LogEntry.Level level) { + level = level == null ? LogEntry.Level.INFO : level; + Map<String, String> appLogLevels = new HashMap<>(); + appLogLevels.put(Logger.ROOT_LOGGER_NAME, level.name()); + for (String runnableName : twillSpec.getRunnables().keySet()) { + this.logLevels.put(runnableName, appLogLevels); + } + } + + private void saveLogLevels(String runnableName, Map<String, LogEntry.Level> logLevels) { + Map<String, String> newLevels = new HashMap<>(); + for (Map.Entry<String, LogEntry.Level> entry : logLevels.entrySet()) { + Preconditions.checkArgument(entry.getValue() != null, "Log level cannot be null for logger {}", entry.getKey()); + newLevels.put(entry.getKey(), entry.getValue().name()); + } + this.logLevels.get(runnableName).putAll(newLevels); --- End diff -- We should always create a new map instead of calling `putAll`. The reason is the exposed method is call `setLogLevels`, not `addLogLevels` or `appendLogLevels`, which implies a overwriting instead of appending. > Runtime change of Application runnable log level > ------------------------------------------------ > > Key: TWILL-138 > URL: https://issues.apache.org/jira/browse/TWILL-138 > Project: Apache Twill > Issue Type: New Feature > Components: core > Reporter: Henry Saputra > > With TWILL-24 is supported for setting log level when starting the Twill > application, next enhancement is to able to send command to update the > aggregate log level for a particular runnable in a Twill application. -- This message was sent by Atlassian JIRA (v6.3.4#6332)