[jira] [Created] (HBASE-20244) NoSuchMethodException when retrieving private method decryptEncryptedDataEncryptionKey from DFSClient

["Ted Yu (JIRA)" <ji...@apache.org>]

Ted Yu created HBASE-20244:
------------------------------

             Summary: NoSuchMethodException when retrieving private method decryptEncryptedDataEncryptionKey from DFSClient
                 Key: HBASE-20244
                 URL: https://issues.apache.org/jira/browse/HBASE-20244
             Project: HBase
          Issue Type: Bug
            Reporter: Ted Yu
            Assignee: Ted Yu


I was running unit test against hadoop 3.0.1 RC and saw the following in test output:
{code}
ERROR [RS-EventLoopGroup-3-3] asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper(267): Couldn't properly initialize access to HDFS internals. Please update  your WAL Provider to not make use of the 'asyncfs' provider. See HBASE-16110 for more information.
java.lang.NoSuchMethodException: org.apache.hadoop.hdfs.DFSClient.decryptEncryptedDataEncryptionKey(org.apache.hadoop.fs.FileEncryptionInfo)
  at java.lang.Class.getDeclaredMethod(Class.java:2130)
  at org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper.createTransparentCryptoHelper(FanOutOneBlockAsyncDFSOutputSaslHelper.java:232)
  at org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper.<clinit>(FanOutOneBlockAsyncDFSOutputSaslHelper.java:262)
  at org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.initialize(FanOutOneBlockAsyncDFSOutputHelper.java:661)
  at org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.access$300(FanOutOneBlockAsyncDFSOutputHelper.java:118)
  at org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper$13.operationComplete(FanOutOneBlockAsyncDFSOutputHelper.java:720)
  at org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper$13.operationComplete(FanOutOneBlockAsyncDFSOutputHelper.java:715)
  at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:507)
  at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:500)
  at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:479)
  at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:420)
  at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104)
  at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)
  at org.apache.hbase.thirdparty.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:306)
  at org.apache.hbase.thirdparty.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:341)
  at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:633)
  at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
{code}
The private method was moved by HDFS-12574 to HdfsKMSUtil with different signature.

To accommodate the above method movement, it seems we need to call the following method of DFSClient :
{code}
  public KeyProvider getKeyProvider() throws IOException {
{code}
Since the new decryptEncryptedDataEncryptionKey method has this signature:
{code}
  static KeyVersion decryptEncryptedDataEncryptionKey(FileEncryptionInfo
        feInfo, KeyProvider keyProvider) throws IOException {
{code}



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