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MAPREDUCE-3226. Fix shutdown of fetcher threads. Contributed by Vinod K V. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1187116 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Arun Murthy 2011-10-20 22:44:38 +00:00
parent 6cd5a1b0f7
commit 02d5fa3e62
3 changed files with 10 additions and 4 deletions
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2
hadoop-mapreduce-project/CHANGES.txt
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@ -1712,6 +1712,8 @@ Release 0.23.0 - Unreleased
MAPREDUCE-3188. Ensure correct shutdown in services. (todd via acmurthy)
MAPREDUCE-3226. Fix shutdown of fetcher threads. (vinodkv via acmurthy)
Release 0.22.0 - Unreleased
INCOMPATIBLE CHANGES

10
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/task/reduce/EventFetcher.java
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@ -60,7 +60,7 @@ class EventFetcher<K,V> extends Thread {
LOG.info(reduce + " Thread started: " + getName());
try {
while (true) {
while (true && !Thread.currentThread().isInterrupted()) {
try {
int numNewMaps = getMapCompletionEvents();
failures = 0;
@ -68,7 +68,9 @@ class EventFetcher<K,V> extends Thread {
LOG.info(reduce + ": " + "Got " + numNewMaps + " new map-outputs");
}
LOG.debug("GetMapEventsThread about to sleep for " + SLEEP_TIME);
Thread.sleep(SLEEP_TIME);
if (!Thread.currentThread().isInterrupted()) {
Thread.sleep(SLEEP_TIME);
}
} catch (IOException ie) {
LOG.info("Exception in getting events", ie);
// check to see whether to abort
@ -76,7 +78,9 @@ class EventFetcher<K,V> extends Thread {
throw new IOException("too many failures downloading events", ie);
}
// sleep for a bit
Thread.sleep(RETRY_PERIOD);
if (!Thread.currentThread().isInterrupted()) {
Thread.sleep(RETRY_PERIOD);
}
}
}
} catch (InterruptedException e) {

2
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/task/reduce/Fetcher.java
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@ -135,7 +135,7 @@ class Fetcher<K,V> extends Thread {
public void run() {
try {
while (true) {
while (true && !Thread.currentThread().isInterrupted()) {
MapHost host = null;
try {
// If merge is on, block