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我在运行python时遇到错误“libhdfs.so:无法打开共享目标文件:没有这样的文件或目录”(下面的堆栈跟踪)脚本在存储在HDFS中的文件上调用Tensorflow阅读器。我正在集群上的一个节点上运行脚本,该节点在virtualenv中有Tensorflow,在执行时激活。用HDFS上的文件运行tensorflow(找不到libhdfs.so)
- 出口HADOOP_HDFS_HOME = $ HADOOP_HDFS_HOME:中:/ opt/Cloudera公司/包裹/ CDH
- 出口JAVA_HOME =/usr/lib目录/ JVM/Java的7-的OpenJDK-AMD64 我执行之前设置以下环境变量
- 出口LD_LIBRARY_PATH = $ LD_LIBRARY_PATH:/opt/cloudera/parcels/CDH/lib/libhdfs.so
- 出口 LD_LIBRARY_PATH = $ LD_LIBRARY_PATH:$ {JAVA_HOME}/JRE/lib目录/ AMD64 /服务器
我执行脚本作为这样的:
- CLASSPATH = $($ LD_LIBRARY_PATH}类路径--glob)蟒TEST.py
这是在脚本的代码:
filename_queue = tf.train.string_input_producer([
"hdfs://hostname:port/user/hdfs/test.avro" ])
reader =
tf.WholeFileReader() key, value = reader.read(filename_queue)
with tf.Session() as sess:
coord = tf.train.Coordinator()
threads = tf.train.start_queue_runners(coord=coord)
sess.run([key,value])
coord.request_stop()
coord.join(threads)
下面是堆错误的痕迹。任何关于是什么导致这个错误的想法是赞赏的(我已经检查过LD_LIBRARY_PATH变量在执行前有一个指向libhdfs.so文件的显式指针,无法弄清楚为什么它仍然无法找到该文件)。
Traceback (most recent call last):
File "TEST.py", line 25, in <module>
sess.run([key,value])
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 767, in run
run_metadata_ptr)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 965, in _run
feed_dict_string, options, run_metadata)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 1015, in _do_run
target_list, options, run_metadata)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/client/session.py", line 1035, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.NotFoundError: libhdfs.so: cannot open shared object file: No such file or directory
[[Node: ReaderReadV2 = ReaderReadV2[_device="/job:localhost/replica:0/task:0/cpu:0"](WholeFileReaderV2, input_producer)]]
Caused by op u'ReaderReadV2', defined at:
File "TEST.py", line 19, in <module>
key, value = reader.read(filename_queue)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/ops/io_ops.py", line 272, in read
return gen_io_ops._reader_read_v2(self._reader_ref, queue_ref, name=name)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/ops/gen_io_ops.py", line 410, in _reader_read_v2
queue_handle=queue_handle, name=name)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/framework/op_def_library.py", line 763, in apply_op
op_def=op_def)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/framework/ops.py", line 2395, in create_op
original_op=self._default_original_op, op_def=op_def)
File "/home/username/tensorflow/local/lib/python2.7/site-packages/tensorflow/python/framework/ops.py", line 1264, in __init__
self._traceback = _extract_stack()
NotFoundError (see above for traceback): libhdfs.so: cannot open shared object file: No such file or directory
您应该尝试'ldd'来查看文件是否已解析。由于这是一个安装问题,请在我们的github页面和CC @jhseu中提出问题。 – drpng
您可以尝试'export LD_LIBRARY_PATH = $ LD_LIBRARY_PATH:/ opt/cloudera/parcels/CDH/lib',而不是'export LD_LIBRARY_PATH = $ LD_LIBRARY_PATH:/ opt/cloudera/parcels/CDH/lib/libhdfs.so'目录名称而不是文件名)? – mrry
@ mrry,这是个好主意。我试过了,现在我得到了下面的错误:“java.io.IOException:No FileSystem for scheme:hdfs”。唯一相关的问题,我可以找到在http://stackoverflow.com/questions/17265002/hadoop-no-filesystem-for-scheme-file,这表明与maven相关的问题。据我所知,我没有在执行脚本时调用maven。 – stacksonstacks