HDFS thrift server returns content of local FS, not HDFS

问题:

I am accessing HDFS using thrift.

1. This is the expected(and right) content on HDFS.

   [hadoop@hdp-namenode-01 ~]$ hadoop fs -ls / Found 3 items drwxr-xr-x   - hadoop supergroup          0 2012-04-26 14:07 /home drwxr-xr-x   - hadoop supergroup          0 2012-04-26 14:21 /tmp drwxr-xr-x   - hadoop supergroup          0 2012-04-26 14:20 /user 

2. And then I start an HDFSThriftServer

   [hadoop@hdp-namenode-01 ~]$ jps 17290 JobTracker 16980 NameNode 27289 Jps 17190 SecondaryNameNode 17511 RunJar 25270 HadoopThriftServer 

3. Try to access content through thrift in PHP.

    $transport = new TSocket(HDFS_HOST, HDFS_PORT);     $transport->setRecvTimeout(60000);     $transport->setSendTimeout(60000);     $protocol =new TBinaryProtocol($transport);     $client = new ThriftHadoopFileSystemClient($protocol);     logv("connect hdfs");     $transport->open();     logv("testing existent of `%s'", $remote_uri);     $remote_path = new Pathname(array('pathname' => $remote_uri));     $remote_file = null;     try {             $remote_file = $client->listStatus($remote_path);     } catch(Exception $e) { }     if (!$remote_file)         loge("could not open `%s'", $remote_uri); 

While $remote_uri is an absolute path. For $remote_uri === '/non/existent' or '/user', etc., listStatus always fail. But if I change it to '/tmp', I find that it lists the content of '/tmp' of the thrift server's local FS.

So the returned content is local FS on the thrift server instead of HDFS! What's wrong here?

文章来源: HDFS thrift server returns content of local FS, not HDFS