Github user chtyim commented on a diff in the pull request: https://github.com/apache/twill/pull/71#discussion_r221661663 --- Diff: twill-yarn/src/main/java/org/apache/twill/internal/yarn/YarnUtils.java --- @@ -345,6 +388,28 @@ private static FileSystem getFileSystem(LocationFactory locationFactory) throws return null; } + private static void handleLogAction(Exception e) { --- End diff -- This method is unnecessary, better log it in place. E.g. in the static initializer above: ```java static { try { Class dfsUtilsClientClazz = Class.forName("org.apache.hadoop.hdfs.DFSUtilClient"); getHaNnRpcAddressesMethod = dfsUtilsClientClazz.getMethod("getHaNnRpcAddresses", Configuration.class); hasDFSUtilClient = true; } catch (ClassNotFoundException e) { // Expected for Hadoop version < 2.8, hence log it as debug only to no polluting the logs LOG.debug("No DFSUtilClient found", e); } catch (NoSuchMethodException e) { // This is unexpected for not founding the getHaNnRpcAddresses method if the DFSUtilClient class exists LOG.warn("No DFSUtilClient.getHaNnRpcAddresses method found. Getting HA NameNode address might fail.", e); } } ```
---