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From joshelser <...@git.apache.org>
Subject [GitHub] accumulo pull request: ACCUMULO-4187: Added rate limiting for majo...
Date Wed, 13 Apr 2016 03:37:57 GMT
Github user joshelser commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/90#discussion_r59489073
  
    --- Diff: core/src/main/java/org/apache/accumulo/core/file/FileOperations.java ---
    @@ -55,23 +56,24 @@ public static FileOperations getInstance() {
        */
     
       public abstract FileSKVIterator openReader(String file, Range range, Set<ByteSequence>
columnFamilies, boolean inclusive, FileSystem fs, Configuration conf,
    -      AccumuloConfiguration tableConf) throws IOException;
    +      RateLimiter readLimiter, AccumuloConfiguration tableConf) throws IOException;
     
       public abstract FileSKVIterator openReader(String file, Range range, Set<ByteSequence>
columnFamilies, boolean inclusive, FileSystem fs, Configuration conf,
    -      AccumuloConfiguration tableConf, BlockCache dataCache, BlockCache indexCache) throws
IOException;
    +      RateLimiter readLimiter, AccumuloConfiguration tableConf, BlockCache dataCache,
BlockCache indexCache) throws IOException;
     
       /**
        * Open a reader that fully support seeking and also enable any optimizations related
to seeking, like bloom filters.
        *
        */
     
    -  public abstract FileSKVIterator openReader(String file, boolean seekToBeginning, FileSystem
fs, Configuration conf, AccumuloConfiguration acuconf)
    -      throws IOException;
    +  public abstract FileSKVIterator openReader(String file, boolean seekToBeginning, FileSystem
fs, Configuration conf, RateLimiter readLimiter,
    --- End diff --
    
    I wonder if it wouldn't be a good idea to consolidate the various "Accumulo" configuration
objects into one struct-like object. Presently, that would contain the AccumuloConfiguration
and the new RateLimiter. This would prevent us from having to change the method signature
every time something new is added here (so far, there's a lot of modifications from this already)


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