Examples with TraceScope org.apache.htrace.core.TraceScope used on opensource projects

Example 6 with TraceScope

use of org.apache.htrace.core.TraceScope in project hadoop by apache.

the class DFSClient method createSymlink.

/**
   * Creates a symbolic link.
   *
   * @see ClientProtocol#createSymlink(String, String,FsPermission, boolean)
   */
public void createSymlink(String target, String link, boolean createParent) throws IOException {
    checkOpen();
    try (TraceScope ignored = newPathTraceScope("createSymlink", target)) {
        final FsPermission dirPerm = applyUMask(null);
        namenode.createSymlink(target, link, dirPerm, createParent);
    } catch (RemoteException re) {
        throw re.unwrapRemoteException(AccessControlException.class, FileAlreadyExistsException.class, FileNotFoundException.class, ParentNotDirectoryException.class, NSQuotaExceededException.class, DSQuotaExceededException.class, QuotaByStorageTypeExceededException.class, UnresolvedPathException.class, SnapshotAccessControlException.class);
    }
}

Example 7 with TraceScope

use of org.apache.htrace.core.TraceScope in project hadoop by apache.

the class DFSClient method primitiveMkdir.

/**
   * Same {{@link #mkdirs(String, FsPermission, boolean)} except
   * that the permissions has already been masked against umask.
   */
public boolean primitiveMkdir(String src, FsPermission absPermission, boolean createParent) throws IOException {
    checkOpen();
    if (absPermission == null) {
        absPermission = applyUMaskDir(null);
    }
    LOG.debug("{}: masked={}", src, absPermission);
    try (TraceScope ignored = tracer.newScope("mkdir")) {
        return namenode.mkdirs(src, absPermission, createParent);
    } catch (RemoteException re) {
        throw re.unwrapRemoteException(AccessControlException.class, InvalidPathException.class, FileAlreadyExistsException.class, FileNotFoundException.class, ParentNotDirectoryException.class, SafeModeException.class, NSQuotaExceededException.class, DSQuotaExceededException.class, QuotaByStorageTypeExceededException.class, UnresolvedPathException.class, SnapshotAccessControlException.class);
    }
}

Example 8 with TraceScope

use of org.apache.htrace.core.TraceScope in project hadoop by apache.

the class DFSClient method decryptEncryptedDataEncryptionKey.

/**
   * Decrypts a EDEK by consulting the KeyProvider.
   */
private KeyVersion decryptEncryptedDataEncryptionKey(FileEncryptionInfo feInfo) throws IOException {
    try (TraceScope ignored = tracer.newScope("decryptEDEK")) {
        KeyProvider provider = getKeyProvider();
        if (provider == null) {
            throw new IOException("No KeyProvider is configured, cannot access" + " an encrypted file");
        }
        EncryptedKeyVersion ekv = EncryptedKeyVersion.createForDecryption(feInfo.getKeyName(), feInfo.getEzKeyVersionName(), feInfo.getIV(), feInfo.getEncryptedDataEncryptionKey());
        try {
            KeyProviderCryptoExtension cryptoProvider = KeyProviderCryptoExtension.createKeyProviderCryptoExtension(provider);
            return cryptoProvider.decryptEncryptedKey(ekv);
        } catch (GeneralSecurityException e) {
            throw new IOException(e);
        }
    }
}

Example 9 with TraceScope

use of org.apache.htrace.core.TraceScope in project hadoop by apache.

the class DFSClient method newReaderTraceScope.

/**
   * Full detailed tracing for read requests: path, position in the file,
   * and length.
   *
   * @param reqLen requested length
   */
TraceScope newReaderTraceScope(String description, String path, long pos, int reqLen) {
    TraceScope scope = newPathTraceScope(description, path);
    scope.addKVAnnotation("pos", Long.toString(pos));
    scope.addKVAnnotation("reqLen", Integer.toString(reqLen));
    return scope;
}

Example 10 with TraceScope

use of org.apache.htrace.core.TraceScope in project hadoop by apache.

the class DFSClient method getXAttr.

public byte[] getXAttr(String src, String name) throws IOException {
    checkOpen();
    try (TraceScope ignored = newPathTraceScope("getXAttr", src)) {
        final List<XAttr> xAttrs = XAttrHelper.buildXAttrAsList(name);
        final List<XAttr> result = namenode.getXAttrs(src, xAttrs);
        return XAttrHelper.getFirstXAttrValue(result);
    } catch (RemoteException re) {
        throw re.unwrapRemoteException(AccessControlException.class, FileNotFoundException.class, UnresolvedPathException.class);
    }
}