[GitHub] drill pull request: Enhanced logging and associated code hygiene

[jaltekruse]

Github user jaltekruse commented on a diff in the pull request:

    https://github.com/apache/drill/pull/93#discussion_r35031778
  
    --- Diff: 
common/src/main/java/org/apache/drill/common/config/DrillConfig.java ---
    @@ -44,31 +46,37 @@
     import com.google.common.collect.ImmutableList;
     import com.typesafe.config.Config;
     import com.typesafe.config.ConfigFactory;
    +import com.typesafe.config.ConfigRenderOptions;
     
     public final class DrillConfig extends NestedConfig{
    -//  private static final org.slf4j.Logger logger = 
org.slf4j.LoggerFactory.getLogger(DrillConfig.class);
    +  private static final Logger logger = getLogger(DrillConfig.class);
    +
       private final ObjectMapper mapper;
       private final ImmutableList<String> startupArguments;
     
       public static final boolean ON_OSX = 
System.getProperty("os.name").contains("OS X");
     
    -  @SuppressWarnings("restriction")  private static final long 
MAX_DIRECT_MEMORY = sun.misc.VM.maxDirectMemory();
    +  @SuppressWarnings("restriction")
    +  private static final long MAX_DIRECT_MEMORY = 
sun.misc.VM.maxDirectMemory();
     
       @SuppressWarnings("unchecked")
       private volatile List<Queue<Object>> sinkQueues = new 
CopyOnWriteArrayList<Queue<Object>>(new Queue[1]);
     
       @VisibleForTesting
    -  public DrillConfig(Config config, boolean enableServer) {
    +  public DrillConfig(Config config, boolean enableServerConfigs) {
         super(config);
    -    logger.debug("Setting up config object.");
    +    logger.debug("Setting up DrillConfig object.");
    +    if (logger.isTraceEnabled()) {
    --- End diff --
    
    I understand that this is to avoid the call the render() function if we 
don't need to log the statement, but isn't reading config file pretty rare to 
require this kind of optimization here? Did you notice a slow down on the 
drillbit startup time if we were always rendering the options, even if we were 
not logging them?


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