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HDFS-8116. Cleanup uncessary if LOG.isDebugEnabled() from RollingWindowManager. Contributed by Brahma Reddy Battula. 

(cherry picked from commit b61b489995)
This commit is contained in:
Xiaoyu Yao 2015-06-06 18:47:45 -07:00
parent f99744b7a0
commit c8dc113943
2 changed files with 6 additions and 5 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -266,6 +266,9 @@ Release 2.8.0 - UNRELEASED
HDFS-8432. Introduce a minimum compatible layout version to allow downgrade
in more rolling upgrade use cases. (cnauroth)
HDFS-8116. Cleanup uncessary if LOG.isDebugEnabled() from
RollingWindowManager. (Brahma Reddy Battula via xyao)
OPTIMIZATIONS
HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than

8
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/top/window/RollingWindowManager.java
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@ -187,11 +187,9 @@ public class RollingWindowManager {
*/
public TopWindow snapshot(long time) {
TopWindow window = new TopWindow(windowLenMs);
if (LOG.isDebugEnabled()) {
Set<String> metricNames = metricMap.keySet();
LOG.debug("iterating in reported metrics, size={} values={}",
metricNames.size(), metricNames);
}
Set<String> metricNames = metricMap.keySet();
LOG.debug("iterating in reported metrics, size={} values={}",
metricNames.size(), metricNames);
for (Map.Entry<String, RollingWindowMap> entry : metricMap.entrySet()) {
String metricName = entry.getKey();
RollingWindowMap rollingWindows = entry.getValue();