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HDFS-4052. BlockManager#invalidateWork should print log outside the lock. Contributed by Jing Zhao. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1398631 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Suresh Srinivas 2012-10-16 03:37:49 +00:00
parent a75673cbd8
commit b7887f31fb
3 changed files with 21 additions and 21 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -147,6 +147,9 @@ Trunk (Unreleased)
Block Pool Used, Block Pool Used(%) and Failed Volumes.
(Brahma Reddy Battula via suresh)
HDFS-4052. BlockManager#invalidateWork should print log outside the lock.
(Jing Zhao via suresh)
OPTIMIZATIONS
BUG FIXES

18
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
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@ -2856,6 +2856,9 @@ private int getReplication(Block block) {
* @return number of blocks scheduled for removal during this iteration.
*/
private int invalidateWorkForOneNode(String nodeId) {
final List<Block> toInvalidate;
final DatanodeDescriptor dn;
namesystem.writeLock();
try {
// blocks should not be replicated or removed if safe mode is on
@ -2865,10 +2868,23 @@ private int invalidateWorkForOneNode(String nodeId) {
}
// get blocks to invalidate for the nodeId
assert nodeId != null;
return invalidateBlocks.invalidateWork(nodeId);
dn = datanodeManager.getDatanode(nodeId);
if (dn == null) {
invalidateBlocks.remove(nodeId);
return 0;
}
toInvalidate = invalidateBlocks.invalidateWork(nodeId, dn);
if (toInvalidate == null) {
return 0;
}
} finally {
namesystem.writeUnlock();
}
if (NameNode.stateChangeLog.isInfoEnabled()) {
NameNode.stateChangeLog.info("BLOCK* " + getClass().getSimpleName()
+ ": ask " + dn + " to delete " + toInvalidate);
}
return toInvalidate.size();
}
boolean blockHasEnoughRacks(Block b) {

21
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/InvalidateBlocks.java
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@ -134,26 +134,7 @@ synchronized List<String> getStorageIDs() {
return new ArrayList<String>(node2blocks.keySet());
}
/** Invalidate work for the storage. */
int invalidateWork(final String storageId) {
final DatanodeDescriptor dn = datanodeManager.getDatanode(storageId);
if (dn == null) {
remove(storageId);
return 0;
}
final List<Block> toInvalidate = invalidateWork(storageId, dn);
if (toInvalidate == null) {
return 0;
}
if (NameNode.stateChangeLog.isInfoEnabled()) {
NameNode.stateChangeLog.info("BLOCK* " + getClass().getSimpleName()
+ ": ask " + dn + " to delete " + toInvalidate);
}
return toInvalidate.size();
}
private synchronized List<Block> invalidateWork(
synchronized List<Block> invalidateWork(
final String storageId, final DatanodeDescriptor dn) {
final LightWeightHashSet<Block> set = node2blocks.get(storageId);
if (set == null) {