HDFS-10914. Move remnants of oah.hdfs.client to hadoop-hdfs-client.
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5f34402ada
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92e5e91598
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@ -68,4 +68,3 @@ public enum CreateEncryptionZoneFlag {
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return mode;
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}
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}
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@ -45,29 +45,28 @@ import org.apache.hadoop.hdfs.protocol.CachePoolInfo;
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import org.apache.hadoop.hdfs.protocol.EncryptionZone;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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import org.apache.hadoop.security.AccessControlException;
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import org.apache.hadoop.hdfs.tools.DFSAdmin;
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import org.apache.hadoop.hdfs.protocol.ErasureCodingPolicy;
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/**
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* The public API for performing administrative functions on HDFS. Those writing
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* applications against HDFS should prefer this interface to directly accessing
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* functionality in DistributedFileSystem or DFSClient.
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*
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* Note that this is distinct from the similarly-named {@link DFSAdmin}, which
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*
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* Note that this is distinct from the similarly-named DFSAdmin, which
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* is a class that provides the functionality for the CLI `hdfs dfsadmin ...'
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* commands.
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*/
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@InterfaceAudience.Public
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@InterfaceStability.Evolving
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public class HdfsAdmin {
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private DistributedFileSystem dfs;
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private static final FsPermission TRASH_PERMISSION = new FsPermission(
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FsAction.ALL, FsAction.ALL, FsAction.ALL, true);
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/**
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* Create a new HdfsAdmin client.
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*
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*
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* @param uri the unique URI of the HDFS file system to administer
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* @param conf configuration
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* @throws IOException in the event the file system could not be created
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@ -80,11 +79,11 @@ public class HdfsAdmin {
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dfs = (DistributedFileSystem)fs;
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}
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}
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/**
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* Set the namespace quota (count of files, directories, and sym links) for a
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* directory.
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*
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*
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* @param src the path to set the quota for
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* @param quota the value to set for the quota
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* @throws IOException in the event of error
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@ -92,22 +91,22 @@ public class HdfsAdmin {
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public void setQuota(Path src, long quota) throws IOException {
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dfs.setQuota(src, quota, HdfsConstants.QUOTA_DONT_SET);
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}
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/**
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* Clear the namespace quota (count of files, directories and sym links) for a
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* directory.
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*
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*
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* @param src the path to clear the quota of
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* @throws IOException in the event of error
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*/
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public void clearQuota(Path src) throws IOException {
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dfs.setQuota(src, HdfsConstants.QUOTA_RESET, HdfsConstants.QUOTA_DONT_SET);
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}
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/**
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* Set the storage space quota (size of files) for a directory. Note that
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* directories and sym links do not occupy storage space.
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*
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*
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* @param src the path to set the space quota of
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* @param spaceQuota the value to set for the space quota
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* @throws IOException in the event of error
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@ -115,11 +114,11 @@ public class HdfsAdmin {
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public void setSpaceQuota(Path src, long spaceQuota) throws IOException {
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dfs.setQuota(src, HdfsConstants.QUOTA_DONT_SET, spaceQuota);
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}
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/**
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* Clear the storage space quota (size of files) for a directory. Note that
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* directories and sym links do not occupy storage space.
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*
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*
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* @param src the path to clear the space quota of
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* @throws IOException in the event of error
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*/
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@ -152,7 +151,7 @@ public class HdfsAdmin {
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public void clearQuotaByStorageType(Path src, StorageType type) throws IOException {
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dfs.setQuotaByStorageType(src, type, HdfsConstants.QUOTA_RESET);
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}
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/**
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* Allow snapshot on a directory.
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* @param path The path of the directory where snapshots will be taken.
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@ -160,7 +159,7 @@ public class HdfsAdmin {
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public void allowSnapshot(Path path) throws IOException {
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dfs.allowSnapshot(path);
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}
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/**
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* Disallow snapshot on a directory.
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* @param path The path of the snapshottable directory.
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@ -171,7 +170,7 @@ public class HdfsAdmin {
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/**
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* Add a new CacheDirectiveInfo.
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*
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*
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* @param info Information about a directive to add.
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* @param flags {@link CacheFlag}s to use for this operation.
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* @return the ID of the directive that was created.
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@ -181,10 +180,10 @@ public class HdfsAdmin {
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EnumSet<CacheFlag> flags) throws IOException {
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return dfs.addCacheDirective(info, flags);
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}
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/**
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* Modify a CacheDirective.
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*
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*
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* @param info Information about the directive to modify. You must set the ID
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* to indicate which CacheDirective you want to modify.
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* @param flags {@link CacheFlag}s to use for this operation.
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@ -197,7 +196,7 @@ public class HdfsAdmin {
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/**
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* Remove a CacheDirective.
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*
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*
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* @param id identifier of the CacheDirectiveInfo to remove
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* @throws IOException if the directive could not be removed
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*/
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@ -208,7 +207,7 @@ public class HdfsAdmin {
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/**
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* List cache directives. Incrementally fetches results from the server.
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*
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*
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* @param filter Filter parameters to use when listing the directives, null to
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* list all directives visible to us.
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* @return A RemoteIterator which returns CacheDirectiveInfo objects.
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@ -223,7 +222,7 @@ public class HdfsAdmin {
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*
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* @param info
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* The request to add a cache pool.
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* @throws IOException
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* @throws IOException
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* If the request could not be completed.
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*/
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public void addCachePool(CachePoolInfo info) throws IOException {
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@ -235,19 +234,19 @@ public class HdfsAdmin {
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*
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* @param info
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* The request to modify a cache pool.
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* @throws IOException
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* @throws IOException
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* If the request could not be completed.
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*/
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public void modifyCachePool(CachePoolInfo info) throws IOException {
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dfs.modifyCachePool(info);
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}
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/**
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* Remove a cache pool.
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*
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* @param poolName
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* Name of the cache pool to remove.
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* @throws IOException
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* @throws IOException
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* if the cache pool did not exist, or could not be removed.
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*/
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public void removeCachePool(String poolName) throws IOException {
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@ -20,8 +20,7 @@ package org.apache.hadoop.hdfs.client;
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import java.io.IOException;
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import java.net.URI;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.commons.io.IOUtils;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.classification.InterfaceStability;
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import org.apache.hadoop.conf.Configuration;
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@ -30,7 +29,8 @@ import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.hdfs.DistributedFileSystem;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants.SafeModeAction;
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import org.apache.hadoop.io.IOUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* The public utility API for HDFS.
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@ -38,7 +38,7 @@ import org.apache.hadoop.io.IOUtils;
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@InterfaceAudience.Public
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@InterfaceStability.Evolving
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public class HdfsUtils {
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private static final Log LOG = LogFactory.getLog(HdfsUtils.class);
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public static final Logger LOG = LoggerFactory.getLogger(HdfsUtils.class);
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/**
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* Is the HDFS healthy?
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@ -54,7 +54,7 @@ public class HdfsUtils {
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throw new IllegalArgumentException("The scheme is not "
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+ HdfsConstants.HDFS_URI_SCHEME + ", uri=" + uri);
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}
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final Configuration conf = new Configuration();
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//disable FileSystem cache
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conf.setBoolean(String.format("fs.%s.impl.disable.cache", scheme), true);
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@ -80,7 +80,7 @@ public class HdfsUtils {
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}
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return false;
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} finally {
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IOUtils.cleanup(LOG, fs);
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IOUtils.closeQuietly(fs);
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}
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}
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}
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