Question

我正在尝试在需要 matplotlib 的ec2实例上运行脚本，显然默认情况下不会安装它。所以我正在努力做到这一点

pip install -U matplotlib

正如您在图片中看到的，我收到此错误：

以下是文字版本：

Collecting matplotlib   Downloading matplotlib-2.0.0.tar.gz (53.2MB)
    99% |████████████████████████████████| 53.2MB 24.0MB/s eta 0:00:01  Exception:   Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 246, in main
      status = self.run(options, args)
    File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 342, in run
      requirement_set.prepare_files(finder)
    File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 345, in prepare_files
      functools.partial(self._prepare_file, finder))
    File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 290, in _walk_req_to_install
      more_reqs = handler(req_to_install)
    File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 487, in _prepare_file
      download_dir, do_download, session=self.session,
    File "/usr/lib/python2.7/dist-packages/pip/download.py", line 827, in unpack_url
      session,
    File "/usr/lib/python2.7/dist-packages/pip/download.py", line 673, in unpack_http_url
      from_path, content_type = _download_http_url(link, session, temp_dir)
    File "/usr/lib/python2.7/dist-packages/pip/download.py", line 888, in _download_http_url
      _download_url(resp, link, content_file)
    File "/usr/lib/python2.7/dist-packages/pip/download.py", line 621, in _download_url
      for chunk in progress_indicator(resp_read(4096), 4096):
    File "/usr/lib/python2.7/dist-packages/pip/utils/ui.py", line 133, in iter
      for x in it:
    File "/usr/lib/python2.7/dist-packages/pip/download.py", line 586, in resp_read
      decode_content=False):
    File "/usr/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/response.py", line 273, in stream
      data = self.read(amt=amt, decode_content=decode_content)
    File "/usr/lib/python2.7/dist-packages/pip/_vendor/requests/packages/urllib3/response.py", line 203, in read
      data = self._fp.read(amt)
    File "/usr/lib/python2.7/dist-packages/pip/_vendor/cachecontrol/filewrapper.py", line 54, in read
      self.__callback(self.__buf.getvalue())
    File "/usr/lib/python2.7/dist-packages/pip/_vendor/cachecontrol/controller.py", line 224, in cache_response
      self.serializer.dumps(request, response, body=body),
    File "/usr/lib/python2.7/dist-packages/pip/_vendor/cachecontrol/serialize.py", line 81, in dumps
      ).encode("utf8"),   MemoryError

Answer 1

如果您位于EC2实例的较低层，则分配给该实例的内存可能不足以用于编译mathplot。

如果您使用的是较低层的ec2实例，则可以考虑启用swap。以下信息来自digitalocean网站。 https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04

我们可以通过输入以下内容来查看系统是否有任何已配置的交换：

sudo swapon -s

检查当前的交换使用情况：

free -m

如果显示Swap：0 0 0，则表示没有Swap 缓存的总使用的免费共享缓冲区纪录：3953 154 3799 0 8 83 - / + buffers / cache：62 3890 交换：0 0 0

检查空间大小

df -h

确保您有足够的空间并创建：

sudo fallocate -l 2G /swapfile

验证空间信息：

ls -lh /swapfile

返回上述命令的结果：

-rw-r--r-- 1 root root **2.0G** Apr 28 17:19 /swapfile

启用交换文件

sudo chmod 600 /swapfile

键入以下命令验证文件是否具有正确的权限：

ls -lh /swapfile

设置交换空间：

sudo mkswap /swapfile

使用交换空间：

sudo swapon /swapfile

检查程序是否正确：

sudo swapon -s

检查可用空间：

free -m

交换应该在总字段中指示超过0。

使交换文件永久化：

sudo nano /etc/fstab

在文件键的末尾：

/swapfile   none    swap    sw    0   0

完成上述步骤后，您可以考虑使用yum install来安装python-matplotlib：

sudo yum install python-matplotlib

aws ec2错误安装matplotlib

1 个答案: