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Posted to hdfs-commits@hadoop.apache.org by su...@apache.org on 2012/12/15 16:31:19 UTC
svn commit: r1422276 - in
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs: CHANGES.txt
src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java
src/main/java/org/apache/hadoop/hdfs/server/datanode/DataBlockScanner.java
Author: suresh
Date: Sat Dec 15 15:31:18 2012
New Revision: 1422276
URL: http://svn.apache.org/viewvc?rev=1422276&view=rev
Log:
HDFS-4274. BlockPoolSliceScanner does not close verification log during shutdown. Contributed by Chris Nauroth.
Modified:
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataBlockScanner.java
Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1422276&r1=1422275&r2=1422276&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt Sat Dec 15 15:31:18 2012
@@ -280,6 +280,9 @@ Trunk (Unreleased)
HDFS-4310. fix test org.apache.hadoop.hdfs.server.datanode.
TestStartSecureDataNode (Ivan A. Veselovsky via atm)
+ HDFS-4274. BlockPoolSliceScanner does not close verification log during
+ shutdown. (Chris Nauroth via suresh)
+
Release 2.0.3-alpha - Unreleased
INCOMPATIBLE CHANGES
Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java?rev=1422276&r1=1422275&r2=1422276&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java (original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java Sat Dec 15 15:31:18 2012
@@ -602,6 +602,15 @@ class BlockPoolSliceScanner {
lastScanTime.set(Time.now());
}
}
+
+ /**
+ * Shuts down this BlockPoolSliceScanner and releases any internal resources.
+ */
+ void shutdown() {
+ if (verificationLog != null) {
+ verificationLog.close();
+ }
+ }
private void scan() {
if (LOG.isDebugEnabled()) {
@@ -610,7 +619,8 @@ class BlockPoolSliceScanner {
try {
adjustThrottler();
- while (datanode.shouldRun && !Thread.interrupted()
+ while (datanode.shouldRun
+ && !datanode.blockScanner.blockScannerThread.isInterrupted()
&& datanode.isBPServiceAlive(blockPoolId)) {
long now = Time.now();
synchronized (this) {
Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataBlockScanner.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataBlockScanner.java?rev=1422276&r1=1422275&r2=1422276&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataBlockScanner.java (original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataBlockScanner.java Sat Dec 15 15:31:18 2012
@@ -100,6 +100,11 @@ public class DataBlockScanner implements
}
bpScanner.scanBlockPoolSlice();
}
+
+ // Call shutdown for each allocated BlockPoolSliceScanner.
+ for (BlockPoolSliceScanner bpss: blockPoolScannerMap.values()) {
+ bpss.shutdown();
+ }
}
// Wait for at least one block pool to be up
@@ -232,9 +237,21 @@ public class DataBlockScanner implements
}
}
- public synchronized void shutdown() {
+ public void shutdown() {
+ synchronized (this) {
+ if (blockScannerThread != null) {
+ blockScannerThread.interrupt();
+ }
+ }
+
+ // We cannot join within the synchronized block, because it would create a
+ // deadlock situation. blockScannerThread calls other synchronized methods.
if (blockScannerThread != null) {
- blockScannerThread.interrupt();
+ try {
+ blockScannerThread.join();
+ } catch (InterruptedException e) {
+ // shutting down anyway
+ }
}
}