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HBASE-5964. HFileSystem: "No FileSystem for scheme: hdfs" 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1336343 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andrew Kyle Purtell 2012-05-09 18:47:27 +00:00
parent 31e2b2dee5
commit 2c89cef21a
1 changed files with 15 additions and 3 deletions
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18
src/main/java/org/apache/hadoop/hbase/fs/HFileSystem.java
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@ -30,6 +30,7 @@ import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.util.Methods;
import org.apache.hadoop.util.ReflectionUtils;
import org.apache.hadoop.util.Progressable;
@ -141,12 +142,23 @@ public class HFileSystem extends FilterFileSystem {
private static FileSystem newInstanceFileSystem(Configuration conf)
throws IOException {
URI uri = FileSystem.getDefaultUri(conf);
FileSystem fs = null;
Class<?> clazz = conf.getClass("fs." + uri.getScheme() + ".impl", null);
if (clazz == null) {
if (clazz != null) {
// This will be true for Hadoop 1.0, or 0.20.
fs = (FileSystem)ReflectionUtils.newInstance(clazz, conf);
fs.initialize(uri, conf);
} else {
// For Hadoop 2.0, we have to go through FileSystem for the filesystem
// implementation to be loaded by the service loader in case it has not
// been loaded yet.
Configuration clone = new Configuration(conf);
clone.setBoolean("fs." + uri.getScheme() + ".impl.disable.cache", true);
fs = FileSystem.get(uri, clone);
}
if (fs == null) {
throw new IOException("No FileSystem for scheme: " + uri.getScheme());
}
FileSystem fs = (FileSystem)ReflectionUtils.newInstance(clazz, conf);
fs.initialize(uri, conf);
return fs;
}