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MAPREDUCE-6718. add progress log to JHS during startup (haibochen via rkanter) 

(cherry picked from commit 0d6778d800)
This commit is contained in:
Robert Kanter 2016-09-28 15:41:40 -07:00
parent b12f004474
commit 85724268c2
1 changed files with 21 additions and 0 deletions
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21
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/HistoryFileManager.java
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@ -302,6 +302,10 @@ public class HistoryFileManager extends AbstractService {
public boolean isFull() {
return cache.size() >= maxSize;
}
public int size() {
return cache.size();
}
}
/**
@ -612,6 +616,9 @@ public class HistoryFileManager extends AbstractService {
while (!done &&
((timeOutMillis == -1) || (clock.getTime() - start < timeOutMillis))) {
done = tryCreatingHistoryDirs(counter++ % 3 == 0); // log every 3 attempts, 30sec
if (done) {
break;
}
try {
Thread.sleep(intervalCheckMillis);
} catch (InterruptedException ex) {
@ -760,15 +767,29 @@ public class HistoryFileManager extends AbstractService {
List<FileStatus> timestampedDirList = findTimestampedDirectories();
// Sort first just so insertion is in a consistent order
Collections.sort(timestampedDirList);
LOG.info("Found " + timestampedDirList.size() + " directories to load");
for (FileStatus fs : timestampedDirList) {
// TODO Could verify the correct format for these directories.
addDirectoryToSerialNumberIndex(fs.getPath());
}
final double maxCacheSize = (double) jobListCache.maxSize;
int prevCacheSize = jobListCache.size();
for (int i= timestampedDirList.size() - 1;
i >= 0 && !jobListCache.isFull(); i--) {
FileStatus fs = timestampedDirList.get(i);
addDirectoryToJobListCache(fs.getPath());
int currCacheSize = jobListCache.size();
if((currCacheSize - prevCacheSize)/maxCacheSize >= 0.05) {
LOG.info(currCacheSize * 100.0 / maxCacheSize +
"% of cache is loaded.");
}
prevCacheSize = currCacheSize;
}
final double loadedPercent = maxCacheSize == 0.0 ?
100 : prevCacheSize * 100.0 / maxCacheSize;
LOG.info("Existing job initialization finished. " +
loadedPercent + "% of cache is occupied.");
}
private void removeDirectoryFromSerialNumberIndex(Path serialDirPath) {