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From greghogan <...@git.apache.org>
Subject [GitHub] flink pull request #4219: [FLINK-6842] [runtime] Uncomment and activate code...
Date Thu, 06 Jul 2017 13:44:55 GMT
Github user greghogan commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4219#discussion_r125902757
  
    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/fs/hdfs/HadoopFileSystem.java
---
    @@ -459,17 +459,14 @@ public boolean isDistributedFS() {
     	@Override
     	public Class<?> getHadoopWrapperClassNameForFileSystem(String scheme) {
     		Configuration hadoopConf = getHadoopConfiguration();
    -		Class<? extends org.apache.hadoop.fs.FileSystem> clazz;
    -		// We can activate this block once we drop Hadoop1 support (only hd2 has the getFileSystemClass-method)
    -//		try {
    -//			clazz = org.apache.hadoop.fs.FileSystem.getFileSystemClass(scheme, hadoopConf);
    -//		} catch (IOException e) {
    -//			LOG.info("Flink could not load the Hadoop File system implementation for scheme
"+scheme);
    -//			return null;
    -//		}
    -		clazz = hadoopConf.getClass("fs." + scheme + ".impl", null, org.apache.hadoop.fs.FileSystem.class);
    -
    -		if (clazz != null && LOG.isDebugEnabled()) {
    +		Class<? extends org.apache.hadoop.fs.FileSystem> clazz = null;
    +		try {
    +			clazz = org.apache.hadoop.fs.FileSystem.getFileSystemClass(scheme, hadoopConf);
    +		} catch (IOException e) {
    +			LOG.info("Flink could not load the Hadoop File system implementation for scheme "
+ scheme);
    +		}
    +
    +		if(LOG.isDebugEnabled()) {
    --- End diff --
    
    Checkstyle is `if (...`. When the `IOException` is caught `clazz` will still be `null`.


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