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https://issues.apache.org/jira/browse/HADOOP-18206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17682730#comment-17682730
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ASF GitHub Bot commented on HADOOP-18206:
-----------------------------------------
virajjasani commented on code in PR #5315:
URL: https://github.com/apache/hadoop/pull/5315#discussion_r1092392836
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/log/LogLevel.java:
##########
@@ -340,22 +337,14 @@ public void doGet(HttpServletRequest request,
HttpServletResponse response
out.println(MARKER
+ "Submitted Class Name: <b>" + logName + "</b><br />");
- Log log = LogFactory.getLog(logName);
+ Logger log = Logger.getLogger(logName);
out.println(MARKER
+ "Log Class: <b>" + log.getClass().getName() +"</b><br />");
if (level != null) {
out.println(MARKER + "Submitted Level: <b>" + level + "</b><br />");
}
- if (log instanceof Log4JLogger) {
- process(((Log4JLogger)log).getLogger(), level, out);
- }
- else if (log instanceof Jdk14Logger) {
- process(((Jdk14Logger)log).getLogger(), level, out);
- }
- else {
- out.println("Sorry, " + log.getClass() + " not supported.<br />");
- }
+ process(log, level, out);
Review Comment:
The plan is to use SLF4J here, but we don't have hadoop-logging module yet.
When I work on the sub-task to create hadoop-logging module, with sufficient
reflections, we should be able to do `log.setLevel()` using the module. Hence,
replacing this with slf4j would be taken care of with it.
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/log/LogLevel.java:
##########
@@ -51,6 +47,7 @@
import org.apache.hadoop.util.ServletUtil;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
+import org.apache.log4j.Logger;
Review Comment:
done
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/service/ServiceOperations.java:
##########
@@ -67,26 +66,6 @@ public static Exception stopQuietly(Service service) {
return stopQuietly(LOG, service);
}
- /**
- * Stop a service; if it is null do nothing. Exceptions are caught and
- * logged at warn level. (but not Throwables). This operation is intended to
- * be used in cleanup operations
- *
- * @param log the log to warn at
- * @param service a service; may be null
- * @return any exception that was caught; null if none was.
- * @see ServiceOperations#stopQuietly(Service)
- */
- public static Exception stopQuietly(Log log, Service service) {
Review Comment:
The problem is, if we deprecate this now, we will have to keep this method.
If we keep this method, then we can't cleanup commons-logging from our
codebase, because the first arg of the method is still referring to
commons-logging logger i.e. `org.apache.commons.logging.Log`.
> Cleanup the commons-logging references in the code base
> -------------------------------------------------------
>
> Key: HADOOP-18206
> URL: https://issues.apache.org/jira/browse/HADOOP-18206
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Duo Zhang
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
>
> Should always use slf4j
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