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HADOOP-11693. Azure Storage FileSystem rename operations are throttled too aggressively to complete HBase WAL archiving. Contributed by Duo Xu.

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This commit is contained in:
cnauroth 2015-03-11 14:36:51 -07:00
parent fb34f45727
commit 7a346bcb4f
5 changed files with 63 additions and 7 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -1088,6 +1088,9 @@ Release 2.7.0 - UNRELEASED
HADOOP-11618. DelegateToFileSystem erroneously uses default FS's port in
constructor. (Brahma Reddy Battula via gera)
HADOOP-11693. Azure Storage FileSystem rename operations are throttled too
aggressively to complete HBase WAL archiving. (Duo Xu via cnauroth)
Release 2.6.1 - UNRELEASED
INCOMPATIBLE CHANGES

55
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/AzureNativeFileSystemStore.java
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@ -135,6 +135,15 @@ public class AzureNativeFileSystemStore implements NativeFileSystemStore {
private static final String KEY_BACKOFF_INTERVAL = "fs.azure.io.retry.backoff.interval";
private static final String KEY_MAX_IO_RETRIES = "fs.azure.io.retry.max.retries";
private static final String KEY_COPYBLOB_MIN_BACKOFF_INTERVAL =
"fs.azure.io.copyblob.retry.min.backoff.interval";
private static final String KEY_COPYBLOB_MAX_BACKOFF_INTERVAL =
"fs.azure.io.copyblob.retry.max.backoff.interval";
private static final String KEY_COPYBLOB_BACKOFF_INTERVAL =
"fs.azure.io.copyblob.retry.backoff.interval";
private static final String KEY_COPYBLOB_MAX_IO_RETRIES =
"fs.azure.io.copyblob.retry.max.retries";
private static final String KEY_SELF_THROTTLE_ENABLE = "fs.azure.selfthrottling.enable";
private static final String KEY_SELF_THROTTLE_READ_FACTOR = "fs.azure.selfthrottling.read.factor";
private static final String KEY_SELF_THROTTLE_WRITE_FACTOR = "fs.azure.selfthrottling.write.factor";
@ -200,6 +209,11 @@ public class AzureNativeFileSystemStore implements NativeFileSystemStore {
private static final int DEFAULT_BACKOFF_INTERVAL = 1 * 1000; // 1s
private static final int DEFAULT_MAX_RETRY_ATTEMPTS = 15;
private static final int DEFAULT_COPYBLOB_MIN_BACKOFF_INTERVAL = 3 * 1000;
private static final int DEFAULT_COPYBLOB_MAX_BACKOFF_INTERVAL = 90 * 1000;
private static final int DEFAULT_COPYBLOB_BACKOFF_INTERVAL = 30 * 1000;
private static final int DEFAULT_COPYBLOB_MAX_RETRY_ATTEMPTS = 15;
// Self-throttling defaults. Allowed range = (0,1.0]
// Value of 1.0 means no self-throttling.
// Value of x means process data at factor x of unrestricted rate
@ -2435,11 +2449,46 @@ public void rename(String srcKey, String dstKey, boolean acquireLease,
// Rename the source blob to the destination blob by copying it to
// the destination blob then deleting it.
//
dstBlob.startCopyFromBlob(srcUri, getInstrumentedContext());
waitForCopyToComplete(dstBlob, getInstrumentedContext());
// Copy blob operation in Azure storage is very costly. It will be highly
// likely throttled during Azure storage gc. Short term fix will be using
// a more intensive exponential retry policy when the cluster is getting
// throttled.
try {
dstBlob.startCopyFromBlob(srcUri, null, getInstrumentedContext());
} catch (StorageException se) {
if (se.getErrorCode().equals(
StorageErrorCode.SERVER_BUSY.toString())) {
int copyBlobMinBackoff = sessionConfiguration.getInt(
KEY_COPYBLOB_MIN_BACKOFF_INTERVAL,
DEFAULT_COPYBLOB_MIN_BACKOFF_INTERVAL);
int copyBlobMaxBackoff = sessionConfiguration.getInt(
KEY_COPYBLOB_MAX_BACKOFF_INTERVAL,
DEFAULT_COPYBLOB_MAX_BACKOFF_INTERVAL);
int copyBlobDeltaBackoff = sessionConfiguration.getInt(
KEY_COPYBLOB_BACKOFF_INTERVAL,
DEFAULT_COPYBLOB_BACKOFF_INTERVAL);
int copyBlobMaxRetries = sessionConfiguration.getInt(
KEY_COPYBLOB_MAX_IO_RETRIES,
DEFAULT_COPYBLOB_MAX_RETRY_ATTEMPTS);
BlobRequestOptions options = new BlobRequestOptions();
options.setRetryPolicyFactory(new RetryExponentialRetry(
copyBlobMinBackoff, copyBlobDeltaBackoff, copyBlobMaxBackoff,
copyBlobMaxRetries));
dstBlob.startCopyFromBlob(srcUri, options, getInstrumentedContext());
} else {
throw se;
}
}
waitForCopyToComplete(dstBlob, getInstrumentedContext());
safeDelete(srcBlob, lease);
} catch (Exception e) {
} catch (StorageException e) {
// Re-throw exception as an Azure storage exception.
throw new AzureException(e);
} catch (URISyntaxException e) {
// Re-throw exception as an Azure storage exception.
throw new AzureException(e);
}

6
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/StorageInterface.java
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@ -383,6 +383,10 @@ public interface CloudBlobWrapper extends ListBlobItem {
*
* @param source
* A <code>java.net.URI</code> The URI of a source blob.
* @param options
* A {@link BlobRequestOptions} object that specifies any additional options for the request. Specifying
* <code>null</code> will use the default request options from the associated service client (
* {@link CloudBlobClient}).
* @param opContext
* An {@link OperationContext} object that represents the context for the current operation. This object
* is used to track requests to the storage service, and to provide additional runtime information about
@ -394,7 +398,7 @@ public interface CloudBlobWrapper extends ListBlobItem {
*
*/
public abstract void startCopyFromBlob(URI source,
OperationContext opContext)
BlobRequestOptions options, OperationContext opContext)
throws StorageException, URISyntaxException;
/**

4
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azure/StorageInterfaceImpl.java
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@ -393,11 +393,11 @@ public CopyState getCopyState() {
}
@Override
public void startCopyFromBlob(URI source,
public void startCopyFromBlob(URI source, BlobRequestOptions options,
OperationContext opContext)
throws StorageException, URISyntaxException {
getBlob().startCopyFromBlob(source,
null, null, null, opContext);
null, null, options, opContext);
}
@Override

2
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azure/MockStorageInterface.java
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@ -429,7 +429,7 @@ public void setMetadata(HashMap<String, String> metadata) {
}
@Override
public void startCopyFromBlob(URI source,
public void startCopyFromBlob(URI source, BlobRequestOptions options,
OperationContext opContext) throws StorageException, URISyntaxException {
backingStore.copy(convertUriToDecodedString(source), convertUriToDecodedString(uri));
//TODO: set the backingStore.properties.CopyState and