[Hadoop-common-user] Anybody can help with MountableHDFS fuse-dfs please?

On Mar 8, 2011, at 12:50 PM, yxxtdc wrote:

Hi,

I am a new user to HDFS and am trying to following the instruction on:
http://wiki.apache.org/hadoop/MountableHDFS

But fuse-dfs fails to load and spits out the following errors:
fuse_dfs_wrapper.sh dfs://xsn95:19001 /hdfs -d
port=19001,server=xsn95
fuse-dfs didn't recognize /hdfs,-2
fuse-dfs ignoring option -d
unique: 1, opcode: INIT (26), nodeid: 0, insize: 56
INIT: 7.8
flags=0x00000003
max_readahead=0x00080000
INIT: 7.8
flags=0x00000001
max_readahead=0x00080000
max_write=0x00020000
unique: 1, error: 0 (Success), outsize: 40
unique: 2, opcode: GETATTR (3), nodeid: 1, insize: 40
Call to JNI_CreateJavaVM option 1 = -Xmx2048m
Calling JNI_CreateJavaVM
There was an error trying to initialize the HPI library.
Call to JNI_CreateJavaVM failed with error: -1
unique: 2, error: -5 (Input/output error), outsize: 16



I've added libnsl.so and libhpi.so to the LD_LIBRARY_PATH and still it won't
load. The error code is from:
Hadoop-0.20.2/src/c++/libhdfs/hdfsJniHelper.c

In getJNIEnv function:

//Create the VM

JavaVMInitArgs vm_args;

JavaVM *vm;

vm_args.version = JNI_VERSION_1_4;

vm_args.options = options;

vm_args.nOptions = noArgs;

vm_args.ignoreUnrecognized = 1;



fprintf(stderr, "Calling JNI_CreateJavaVM\n");

rv = JNI_CreateJavaVM(&vm, (void*)&env, &vm_args);

if (rv != 0) {

fprintf(stderr, "Call to JNI_CreateJavaVM failed "

"with error: %d\n", rv);

UNLOCK_JVM_MUTEX();

return NULL;

}



Anybody out there in HADOOP community can help me out please?

Thanks in advance.


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On Mar 8, 2011, at 1:38 PM, yxxtdc wrote:

I copied the libjvm.so from
/usr/java/jdk1.6.0_24/jre/lib/amd64/server/libjvm.so.
I added /usr/java/jdk1.6.0_24/jre/lib/amd64/server to the LD_LIBRARY_PATH
and it did not work so I made a manual copy to $HADOOP_HOME/lib directory.

I googled my HPI error someone suggested to use the client version of the
libjvm.so but jdk 6 only came with the lib/amd64/server/libjvm.so.


Thanks,

Yang


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On Mar 8, 2011, at 3:41 PM, yxxtdc wrote:

Thanks Brian.

Got over that by fixing a typo in LD_LIBRARY_PATH and now fuse_dfs is
mounting albeit very very very slowly, like one inode a minute.