python读取HADOOP/HDFS中的h5py文件

问题:

python调用hdfs包从HADOOP上读取到的h5文件为二进制数据,没办法直接转换为h5的对象。pickle.loads、.decode()都不行。
传统方式下需要先通过open(path, “wb”)文件写入硬盘,然后再从硬盘读取文件。速度慢不说,硬盘还面临大量读写,加速报废。

解决思路:

看:官方文档
找:github解答

代码:

import os
import io
import h5py
from hdfs import InsecureClient

url = "http://xxx.xxx.xxx.xxx:xxx"
user = "xxx"
connect = InsecureClient(url, user=user)
with connect.read("/test.h5"
root@job-da8abcdd-9948-4878-9d20-371dceb00ee1-master-0:/home# start-dfs.sh Starting namenodes on [master] /opt/hadoop/hadoop/bin/hdfs: 26: function: not found /opt/hadoop/hadoop/bin/hdfs: 28: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 29: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 30: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 31: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 32: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 33: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 35: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 36: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 37: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 38: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 39: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 40: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 41: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 42: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 43: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 44: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 45: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 46: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 47: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 48: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 49: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 50: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 51: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 52: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 53: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 54: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 55: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 56: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 57: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 58: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 59: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 60: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 61: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 62: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 63: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 64: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 65: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 66: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 67: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 68: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 69: hadoop_generate_usage: not found /opt/hadoop/hadoop/bin/hdfs: 77: function: not found /opt/hadoop/hadoop/bin/hdfs: 218: hadoop_validate_classname: not found /opt/hadoop/hadoop/bin/hdfs: 219: hadoop_exit_with_usage: not found /opt/hadoop/hadoop/bin/hdfs: 226: [[: not found /opt/hadoop/hadoop/bin/hdfs: 235: [[: not found ERROR: Cannot execute /opt/hadoop/hadoop/bin/../libexec/hdfs-config.sh. Starting datanodes /opt/hadoop/hadoop/bin/hdfs: 26: function: not found /opt/hadoop/hadoop/bin/hdfs: 28: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 29: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 30: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 31: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 32: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 33: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 35: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 36: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 37: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 38: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 39: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 40: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 41: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 42: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 43: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 44: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 45: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 46: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 47: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 48: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 49: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 50: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 51: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 52: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 53: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 54: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 55: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 56: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 57: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 58: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 59: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 60: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 61: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 62: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 63: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 64: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 65: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 66: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 67: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 68: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 69: hadoop_generate_usage: not found /opt/hadoop/hadoop/bin/hdfs: 77: function: not found /opt/hadoop/hadoop/bin/hdfs: 218: hadoop_validate_classname: not found /opt/hadoop/hadoop/bin/hdfs: 219: hadoop_exit_with_usage: not found /opt/hadoop/hadoop/bin/hdfs: 226: [[: not found /opt/hadoop/hadoop/bin/hdfs: 235: [[: not found ERROR: Cannot execute /opt/hadoop/hadoop/bin/../libexec/hdfs-config.sh. Starting secondary namenodes [job-da8abcdd-9948-4878-9d20-371dceb00ee1-master-0] /opt/hadoop/hadoop/bin/hdfs: 26: function: not found /opt/hadoop/hadoop/bin/hdfs: 28: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 29: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 30: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 31: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 32: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 33: hadoop_add_option: not found /opt/hadoop/hadoop/bin/hdfs: 35: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 36: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 37: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 38: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 39: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 40: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 41: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 42: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 43: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 44: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 45: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 46: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 47: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 48: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 49: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 50: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 51: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 52: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 53: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 54: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 55: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 56: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 57: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 58: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 59: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 60: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 61: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 62: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 63: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 64: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 65: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 66: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 67: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 68: hadoop_add_subcommand: not found /opt/hadoop/hadoop/bin/hdfs: 69: hadoop_generate_usage: not found /opt/hadoop/hadoop/bin/hdfs: 77: function: not found /opt/hadoop/hadoop/bin/hdfs: 218: hadoop_validate_classname: not found /opt/hadoop/hadoop/bin/hdfs: 219: hadoop_exit_with_usage: not found /opt/hadoop/hadoop/bin/hdfs: 226: [[: not found /opt/hadoop/hadoop/bin/hdfs: 235: [[: not found ERROR: Cannot execute /opt/hadoop/hadoop/bin/../libexec/hdfs-config.sh.
最新发布
07-11
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