ListDirectory errors when listing local paths

[wangkuiyi]

I encountered a problem: it seems that hdfs.ListDirectory cannot list files on local filesystem.

The following program works when it connects to an HDFS, but failed with "no such file or directory" error when it connects to the local filesystem:

package main

import (
"fmt"
"github.com/zyxar/hdfs"
)

func main() {
// fs, _ := hdfs.Connect("localhost", 9000)
fs, _ := hdfs.Connect("", 0)
fi, _ := fs.GetPathInfo("/") // Work with both HDFS and local filesystem.
fmt.Println(fi)
fis, _ := fs.ListDirectory("/") // Work with only HDFS but not local filesystem.
fmt.Println(fis)
}

I then checked my build of libhdfs by running the following C program. It works with both HDFS and local filesystem:

include "hdfs.h"

int main() {
// hdfsFS fs = hdfsConnect("localhost", 9000);
hdfsFS fs = hdfsConnectAsUser(NULL, 0, NULL);

int numEntries = 0;
hdfsFileInfo* files = hdfsListDirectory(fs, "/", &numEntries);
for (int i = 0; i < numEntries; ++i) {
printf("%s\n", files[i].mName);
}
hdfsFreeFileInfo(files, numEntries);
return hdfsDisconnect(fs);
}

I cannot find any clue in hdfs.go.

[wangkuiyi]

Got the diff. Thanks.

It seems that libhdfs sets errno by mistake?

[zyxar]

maybe cgo, or libhdfs. There are a lot similar cases in impl-ing hdfs.go, especially in accessing local file systems.

[wangkuiyi]

It looks like this issue can be closed?