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HDFS-17705. Improve datasetlock related log output. #7477

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HDFS-17705. Improve datasetlock related log output. #7477

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983f54d
HDFS-17705. Improve datasetlock related log output.
hfutatzhanghb Mar 6, 2025
65e3347
fix checkstyle.
hfutatzhanghb Mar 6, 2025
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10 changes: 8 additions & 2 deletions .../hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataSetLockManager.java
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Original file line number Diff line number Diff line change
Expand Up @@ -179,7 +179,7 @@ public AutoCloseDataSetLock readLock(LockLevel level, String... resources) {
AutoCloseDataSetLock dirLock = getReadLock(level, resources);
dirLock.setParentLock(volLock);
if (openLockTrace) {
LOG.debug("Sub lock " + resources[0] + resources[1] + resources[2] + " parent lock " +
LOG.info("Sub lock " + resources[0] + resources[1] + resources[2] + " parent lock " +
resources[0] + resources[1]);
}
return dirLock;
Expand All @@ -206,7 +206,7 @@ public AutoCloseDataSetLock writeLock(LockLevel level, String... resources) {
AutoCloseDataSetLock dirLock = getWriteLock(level, resources);
dirLock.setParentLock(volLock);
if (openLockTrace) {
LOG.debug("Sub lock " + resources[0] + resources[1] + resources[2] + " parent lock " +
LOG.info("Sub lock " + resources[0] + resources[1] + resources[2] + " parent lock " +
resources[0] + resources[1]);
}
return dirLock;
Expand Down Expand Up @@ -273,6 +273,9 @@ public void addLock(LockLevel level, String... resources) {
new ReentrantReadWriteLock(isFair));
lockMap.addLock(lockName, new ReentrantReadWriteLock(isFair));
}
if (openLockTrace) {
LOG.info("Added {} lock, lock name: {}", level.name(), lockName);
}
}

@Override
Expand All @@ -281,6 +284,9 @@ public void removeLock(LockLevel level, String... resources) {
try (AutoCloseDataSetLock lock = writeLock(level, resources)) {
lockMap.removeLock(lockName);
}
if (openLockTrace) {
LOG.info("Removed {} lock, lock name: {}", level.name(), lockName);
}
}

@Override
Expand Down
7 changes: 3 additions & 4 deletions ...fs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
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Original file line number Diff line number Diff line change
Expand Up @@ -439,9 +439,9 @@ private synchronized void activateVolume(
List<String> allSubDirNameForDataSetLock = datasetSubLockStrategy.getAllSubLockNames();
for (String dir : allSubDirNameForDataSetLock) {
lockManager.addLock(LockLevel.DIR, bp, ref.getVolume().getStorageID(), dir);
LOG.info("Added DIR lock for bpid:{}, volume storageid:{}, dir:{}",
bp, ref.getVolume().getStorageID(), dir);
}
LOG.info("Added DIR lock for bpid:{}, volume storageid:{}.", bp,
ref.getVolume().getStorageID());
}
DatanodeStorage dnStorage = storageMap.get(sd.getStorageUuid());
if (dnStorage != null) {
Expand Down Expand Up @@ -3297,9 +3297,8 @@ public void addBlockPool(String bpid, Configuration conf)
List<String> allSubDirNameForDataSetLock = datasetSubLockStrategy.getAllSubLockNames();
for (String dir : allSubDirNameForDataSetLock) {
lockManager.addLock(LockLevel.DIR, bpid, v, dir);
LOG.info("Added DIR lock for bpid:{}, volume storageid:{}, dir:{}",
bpid, v, dir);
}
LOG.info("Added DIR lock for bpid:{}, volume storageid:{}.", bpid, v);
}
}
try {
Expand Down