steveloughran commented on a change in pull request #2321:
URL: https://github.com/apache/hadoop/pull/2321#discussion_r492270963
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
##########
@@ -621,6 +621,9 @@ public static LocalFileSystem
newInstanceLocal(Configuration conf)
* @throws IOException a problem arose closing one or more filesystem.
*/
public static void closeAll() throws IOException {
+ if (LOGGER.isDebugEnabled()) {
+ debugLogFileSystemClose("closeAll", null);
Review comment:
pass in "" instead of null and theres' no need for the ? : below
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
##########
@@ -632,9 +635,21 @@ public static void closeAll() throws IOException {
*/
public static void closeAllForUGI(UserGroupInformation ugi)
throws IOException {
+ if (LOGGER.isDebugEnabled()) {
+ debugLogFileSystemClose("closeAllForUGI", "UGI: " + ugi.toString());
Review comment:
just use ugi and let the automatic to.String to the work
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java
##########
@@ -632,9 +635,21 @@ public static void closeAll() throws IOException {
*/
public static void closeAllForUGI(UserGroupInformation ugi)
throws IOException {
+ if (LOGGER.isDebugEnabled()) {
+ debugLogFileSystemClose("closeAllForUGI", "UGI: " + ugi.toString());
+ }
CACHE.closeAll(ugi);
}
+ private static void debugLogFileSystemClose(String methodName, String
additionalInfo) {
+ StackTraceElement callingMethod = new
Throwable().fillInStackTrace().getStackTrace()[2];
+ LOGGER.debug(
+ "FileSystem." + methodName + "() called by method: "
Review comment:
Prefer SLF4J {} and the values as varargs.
You might want to think that at TRACE the entire throwable is logged. Why
so? one level up isn't always enough
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