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From phrocker <...@git.apache.org>
Subject [GitHub] accumulo pull request: ACCUMULO-4153: Update the getCodec method t...
Date Wed, 24 Feb 2016 23:35:02 GMT
Github user phrocker commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/73#discussion_r54026666
  
    --- Diff: core/src/main/java/org/apache/accumulo/core/file/rfile/bcfile/Compression.java
---
    @@ -147,25 +148,27 @@ public synchronized OutputStream createCompressionStream(OutputStream
downStream
         },
     
         GZ(COMPRESSION_GZ) {
    -      private transient DefaultCodec codec;
    +      private transient AtomicReference<DefaultCodec> codec = new AtomicReference<DefaultCodec>();
     
           @Override
    -      synchronized CompressionCodec getCodec() {
    -        if (codec == null) {
    -          codec = new DefaultCodec();
    -          codec.setConf(conf);
    +      CompressionCodec getCodec() {
    +        DefaultCodec resultCodec = codec.get();
    +        if (null == resultCodec) {
    +          DefaultCodec newCodec = new DefaultCodec();
    --- End diff --
    
    I had tunnel vision when I looked at the change and didn't even spend much time looking
or thinking about anything else. You guys are absolutely right and that negates the need for
the AtomicReference. I'll try and apply some time tomorrow to make these changes. 


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